Sample records for land surface interaction

  1. SGP Cloud and Land Surface Interaction Campaign (CLASIC): Measurement Platforms

    SciTech Connect (OSTI)

    MA Miller; R Avissar; LK Berg; SA Edgerton; ML Fischer; TJ Jackson; B. Kustas; PJ Lamb; G McFarquhar; Q Min; B Schmid; MS Torn; DD Tuner

    2007-06-01T23:59:59.000Z

    The Cloud and Land Surface Interaction Campaign (CLASIC) will be conducted from June 8 to June 30, 2007, at the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) Southern Great Plains (SGP) site. Data will be collected using eight aircraft equipped with a variety of specialized sensors, four specially instrumented surface sites, and two prototype surface radar systems. The architecture of CLASIC includes a high-altitude surveillance aircraft and enhanced vertical thermodynamic and wind profile measurements that will characterize the synoptic scale structure of the clouds and the land surface within the ACRF SGP site. Mesoscale and microscale structures will be sampled with a variety of aircraft, surface, and radar observations. An overview of the measurement platforms that will be used during the CLASIC are described in this report. The coordination of measurements, especially as it relates to aircraft flight plans, will be discussed in the CLASIC Implementation Plan.

  2. Modeling the interaction between land surface and groundwater

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    % of GW for irrigation. Groundwater was managed separately. GW systems and land surface intimately and human factors on GW systems. GW irrigation capacity and efficiency based on a watershed scale. How much-ground water models Irrigation efficiency Materials and methods Development of SGWM #12;Background Groundwater

  3. Land-atmosphere interactions in an high resolution atmospheric simulation coupled with a surface data assimilation scheme

    E-Print Network [OSTI]

    Entekhabi, Dara

    A valid tool for the retrieving of the turbulent fluxes that characterize the surface energy budget is constituted by the remote sensing of land surface states. In this study sequences of satellite-derived observations ...

  4. Estimation of turbulent surface heat fluxes using sequences of remotely sensed land surface temperature

    E-Print Network [OSTI]

    Bateni, Sayed Mohyeddin

    2011-01-01T23:59:59.000Z

    Fluxes of heat and moisture at the land-surface play a significant role in the climate system. These fluxes interact with the overlying atmosphere and influence the characteristics of the planetary boundary layer (e.g. ...

  5. Relative efficiency of land surface energy balance components

    E-Print Network [OSTI]

    Bateni, S. M.

    [1] The partitioning of available energy into dissipative fluxes over land surfaces is dependent on the state variable of the surface energy balance (land surface temperature) and the state variable of the surface water ...

  6. Land-atmosphere interaction and radiative-convective equilibrium

    E-Print Network [OSTI]

    Cronin, Timothy (Timothy Wallace)

    2014-01-01T23:59:59.000Z

    I present work on several topics related to land-atmosphere interaction and radiative-convective equilibrium: the first two research chapters invoke ideas related to land-atmosphere interaction to better understand ...

  7. Interaction effects of climate and land use/land cover change on soil organic carbon sequestration

    E-Print Network [OSTI]

    Grunwald, Sabine

    Interaction effects of climate and land use/land cover change on soil organic carbon sequestration carbon sequestration Climate change Soil carbon change Historically, Florida soils stored the largest in Florida (FL) have acted as a sink for carbon (C) over the last 40 years. · Climate interacting with land

  8. Probability distributions of land surface wind speeds over North America

    E-Print Network [OSTI]

    Dai, Aiguo

    . Jones, A. Dai, S. Biner, D. Caya, and K. Winger (2010), Probability distributions of land surface wind distribution used for estimation of wind climate and annual winProbability distributions of land surface wind speeds over North America Yanping He,1 Adam Hugh

  9. CARBON SEQUESTRATION ON SURFACE MINE LANDS

    SciTech Connect (OSTI)

    Donald H. Graves; Christopher Barton; Richard Sweigard; Richard Warner

    2003-10-30T23:59:59.000Z

    The 2002-2003 Department of Energy plantings amounted to 164 acres containing 111,520 tree seedlings in eastern and western Kentucky. Data gathered on these trees included an inventory to determine survival of all planted species. A sub-sample of seedlings was selected to assess the height and diameter of individual species of seedlings established. Additional efforts involved collection of soil sample and litter samples, analysis of herbaceous ground cover from vegetation clip plots and leaf area on each tree species, and development of tissue collections. All areas were sampled for penetration resistance, penetration depth (or depth to refusal), and bulk density at various depths. Rain fall events and flow rates were recorded. The water quality of runoff samples involved the determination of total and settleable solids and particle size distribution. A study was initiated that will focus on the colonization of small mammals from forest edges to various areas located on reclaimed surface mines. This effort will provide a better understanding of the role small mammals and birds have in the establishment of plant communities on mine lands that will be useful in developing and improving reclamation techniques.

  10. Carbon Sequestration on Surface Mine Lands

    SciTech Connect (OSTI)

    Donald Graves; Christopher Barton; Richard Sweigard; Richard Warner; Carmen Agouridis

    2006-03-31T23:59:59.000Z

    Since the implementation of the federal Surface Mining Control and Reclamation Act of 1977 (SMCRA) in May of 1978, many opportunities have been lost for the reforestation of surface mines in the eastern United States. Research has shown that excessive compaction of spoil material in the backfilling and grading process is the biggest impediment to the establishment of productive forests as a post-mining land use (Ashby, 1998, Burger et al., 1994, Graves et al., 2000). Stability of mine sites was a prominent concern among regulators and mine operators in the years immediately following the implementation of SMCRA. These concerns resulted in the highly compacted, flatly graded, and consequently unproductive spoils of the early post-SMCRA era. However, there is nothing in the regulations that requires mine sites to be overly compacted as long as stability is achieved. It has been cultural barriers and not regulatory barriers that have contributed to the failure of reforestation efforts under the federal law over the past 27 years. Efforts to change the perception that the federal law and regulations impede effective reforestation techniques and interfere with bond release must be implemented. Demonstration of techniques that lead to the successful reforestation of surface mines is one such method that can be used to change perceptions and protect the forest ecosystems that were indigenous to these areas prior to mining. The University of Kentucky initiated a large-scale reforestation effort to address regulatory and cultural impediments to forest reclamation in 2003. During the three years of this project 383,000 trees were planted on over 556 acres in different physiographic areas of Kentucky (Table 1, Figure 1). Species used for the project were similar to those that existed on the sites before mining was initiated (Table 2). A monitoring program was undertaken to evaluate growth and survival of the planted species as a function of spoil characteristics and reclamation practice. In addition, experiments were integrated within the reforestation effort to address specific questions pertaining to sequestration of carbon (C) on these sites.

  11. Effect of Land Surface Heterogeneity on Satellite Near-

    E-Print Network [OSTI]

    Walker, Jeff

    in regulating the energy and water balance at the soil surface and it is therefore a crucial variable for many. SMOS will carry an L-band (1.4GHz) microwave radiometer and will provide near-surface soil moisture highly heterogeneous land surface conditions. The principal objectives of this research are to (i) test

  12. Development of High Resolution Land Surface Parameters for the Community Land Model

    SciTech Connect (OSTI)

    Ke, Yinghai; Leung, Lai-Yung R.; Huang, Maoyi; Coleman, Andre M.; Li, Hongyi; Wigmosta, Mark S.

    2012-11-06T23:59:59.000Z

    There is a growing need for high-resolution land surface parameters as land surface models are being applied at increasingly higher spatial resolution offline as well as in regional and global models. The default land surface parameters for the most recent version of the Community Land Model (i.e. CLM 4.0) are at 0.5° or coarser resolutions, released with the Community Earth System Model (CESM). Plant Functional Types (PFTs), vegetation properties such as Leaf Area Index (LAI), Stem Area Index (SAI), and non-vegetated land covers were developed using remotely sensed datasets retrieved in late 1990’s and the beginning of this century. In this study, we developed new land surface parameters for CLM 4.0, specifically PFTs, LAI, SAI and non-vegetated land cover composition, at 0.05° resolution globally based on the most recent MODIS land cover and improved MODIS LAI products. Compared to the current CLM 4.0 parameters, the new parameters produced a decreased coverage by bare soil and trees, but an increased coverage by shrub, grass, and cropland. The new parameters result in a decrease in global seasonal LAI, with the biggest decrease in boreal forests; however, the new parameters also show a large increase in LAI in tropical forest. Differences between the new and the current parameters are mainly caused by changes in the sources of remotely sensed data and the representation of land cover in the source data. Advantages and disadvantages of each dataset were discussed in order to provide guidance on the use of the data. The new high-resolution land surface parameters have been used in a coupled land-atmosphere model (WRF-CLM) applied to the western U.S. to demonstrate their use in high-resolution modeling. A remapping method from the latitude/longitude grid of the CLM data to the WRF grids with map projection was also demonstrated. Future work will include global offline CLM simulations to examine the impacts of source data resolution and subsequent land parameter changes on simulated land surface processes.

  13. Other Surface Impoundments and Land Applications (Oklahoma)

    Broader source: Energy.gov [DOE]

    A water quality permit is required from the Department of Environmental Quality to construct, install, operate or close any industrial surface impoundment, industrial septic tank or treatment...

  14. Sensitivity of global tropical climate to land surface processes: Mean state and interannual variability

    SciTech Connect (OSTI)

    Ma, Hsi-Yen; Xiao, Heng; Mechoso, C. R.; Xue, Yongkang

    2013-03-01T23:59:59.000Z

    This study examines the sensitivity of global tropical climate to land surface processes (LSP) using an atmospheric general circulation model both uncoupled (with prescribed SSTs) and coupled to an oceanic general circulation model. The emphasis is on the interactive soil moisture and vegetation biophysical processes, which have first order influence on the surface energy and water budgets. The sensitivity to those processes is represented by the differences between model simulations, in which two land surface schemes are considered: 1) a simple land scheme that specifies surface albedo and soil moisture availability, and 2) the Simplified Simple Biosphere Model (SSiB), which allows for consideration of interactive soil moisture and vegetation biophysical process. Observational datasets are also employed to assess the reality of model-revealed sensitivity. The mean state sensitivity to different LSP is stronger in the coupled mode, especially in the tropical Pacific. Furthermore, seasonal cycle of SSTs in the equatorial Pacific, as well as ENSO frequency, amplitude, and locking to the seasonal cycle of SSTs are significantly modified and more realistic with SSiB. This outstanding sensitivity of the atmosphere-ocean system develops through changes in the intensity of equatorial Pacific trades modified by convection over land. Our results further demonstrate that the direct impact of land-atmosphere interactions on the tropical climate is modified by feedbacks associated with perturbed oceanic conditions ("indirect effect" of LSP). The magnitude of such indirect effect is strong enough to suggest that comprehensive studies on the importance of LSP on the global climate have to be made in a system that allows for atmosphere-ocean interactions.

  15. Improving land-surface model hydrology: Is an explicit aquifer model better than a deeper soil profile?

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    land-surface model hydrology: Is an explicit aquifer modelAL. : LAND-SURFACE MODEL HYDROLOGY Changnon, S. , et al. (land-surface model hydrology: Is an explicit aquifer model

  16. On the connection between continental-scale land surface processes and the tropical climate in a coupled ocean-atmosphere-land system

    SciTech Connect (OSTI)

    Ma, Hsi-Yen; Mechoso, C. R.; Xue, Yongkang; Xiao, Heng; Neelin, David; Ji, Xuan

    2013-11-15T23:59:59.000Z

    The impact of global tropical climate to perturbations in land surface processes (LSP) are evaluated using perturbations given by different LSP representations of continental-scale in a global climate model that includes atmosphere-ocean interactions. One representation is a simple land scheme, which specifies climatological albedos and soil moisture availability. The other representation is the more comprehensive Simplified Simple Biosphere Model, which allows for interactive soil moisture and vegetation biophysical processes. The results demonstrate that LSP processes such as interactive soil moisture and vegetation biophysical processes have strong impacts on the seasonal mean states and seasonal cycles of global precipitation, clouds, and surface air temperature. The impact is especially significant over the tropical Pacific. To explore the mechanisms for such impact, different LSP representations are confined to selected continental-scale regions where strong interactions of climate-vegetation biophysical processes are present. We find that the largest impact is mainly from LSP perturbations over the tropical African continent. The impact is through anomalous convective heating in tropical Africa due to changes in the surface heat fluxes, which in turn affect basinwide teleconnections in the Pacific through equatorial wave dynamics. The modifications in the equatorial Pacific climate are further enhanced by strong air-sea coupling between surface wind stress and upwelling, as well as effect of ocean memory. Our results further suggest that correct representations of land surface processes, land use change and the associated changes in the deep convection over tropical Africa are crucial to reducing the uncertainty when performing future climate projections under different climate change scenarios.

  17. Mourning dove differential use of reclaimed surface-mined lands in east-central Texas

    E-Print Network [OSTI]

    Huff, James Eric

    2001-01-01T23:59:59.000Z

    . Fourteen transects in different aged reclaimed surface-mined lands and in different land-use types were monitored during morning and evening hours monthly for 1 year to examine differential use by mourning doves. Mourning dove densities were determined...

  18. Waterfowl habitats on reclaimed surface mined lands in southwestern Illinois

    SciTech Connect (OSTI)

    O'Leary, W.G.; Klimstra, W.D.; Nawrot, J.R.

    1984-12-01T23:59:59.000Z

    Loss of quality wetland habitat is probably the most important factor affecting populations of waterfowl in the United States. To counteract this problem programs for protecting critical habitats have been established and research for innovative methods to create wetlands are being pursued. Recently, attention has been given to evaluation of wetland habitats on lands surface-mined and to methods of reclamation to enhance their development as part of future planning. These data indicate quality wetland habitats can be a legitimate aspect of reclaimed surface-mined lands; and selective overburden handling, grading so as to maximize biologically productive zones and selective plantings contribute importantly to their value. Currently bond release criteria by the Illinois regulatory authority for wildlife habitat and developed water resources discourages reclamation that would maximize quality wetland habitats. Suggested changes in these criteria include alternative vegetation requirements for wetland habitats, more leniency on seasonally inundated shallow water areas, and variation from topsoil requirements when adequate unconsolidated substitute material is available. It is believed that such allowances would result in incentives for the industry to develop wetland habitats so vital to continued enjoyment of waterfowl resources.

  19. Soft-Landing of Peptide IOns Onto Self-Assembled Monolayer Surfaces...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    self-assembled monolayer surfaces (SAMs). Peptide ions are particularly attractive model systems that provide important insights on the behavior of soft landed proteins, while...

  20. Nocturnal effects in the retrieval of land surface temperatures from satellite measurements

    SciTech Connect (OSTI)

    Platt, C.M.R.; Prata, A.J. (CSIRO, Mordialloc, Victoria (Australia). Div. of Atmospheric Research)

    1993-08-01T23:59:59.000Z

    The determination of accurate land surface temperatures from infrared satellite measurements is difficult because of variations in atmospheric water vapor and in land surface emissivity. Here the authors show that under certain conditions (viz. when the atmosphere near the surface is warmer than the surface), there is a cancellation between absorbed and emitted radiation. This often occurs during clear nights when intense nocturnal cooling of the surface causes inversions in the temperature and water vapor profiles. They demonstrate that a reasonable estimate of the land surface temperature can be made from a single channel infrared measurement in these conditions.

  1. Insect-Plant Interactions Insects & Plants Evolution of land plants (especially

    E-Print Network [OSTI]

    Brown, Christopher A.

    1 Insect-Plant Interactions Insects & Plants Evolution of land plants (especially flowering plants) a major force driving the diversity of insects As diversity of land plants has increased, the diversity of insects has increased Interaction between plants and insects is an example of coevolution Coevolution

  2. Land surface cleanup of plutonium at the Nevada Test Site

    SciTech Connect (OSTI)

    Ebeling, L.L.; Evans, R.B.; Walsh, E.J.

    1991-01-01T23:59:59.000Z

    The Nevada Test Site (NTS) covers approximately 3300 km{sup 2} of high desert and is located approximately 100 km northwest of Las Vegas, Nevada. Soil contaminated by plutonium exists on the NTS and surrounding areas from safety tests conducted in the 1950s and 1960s. About 150 curies of contamination have been measured over 1200 hectares of land surface. Most contamination is found in the top 5 cm of soil but may be found deep as 25 cm. The cost of conventional removal and disposal of the full soil volume has been estimated at over $500,000,000. This study is directed toward minimizing the volume of waste which must be further processed and disposed of by precisely controlling soil removal depth. The following soil removal machines were demonstrated at the NTS: (1) a CMI Corporation Model PR-500FL pavement profiler, (2) a CMI Corporation Model Tr-225B trimmer reclaimer, (3) a Caterpillar Model 623 elevating scraper equipped with laser depth control, (4) a Caterpillar Model 14G motor grader equipped with laser depth control, (5) a Caterpillar Model 637 auger scraper, and (6) a XCR Series Guzzler vacuum truck. 5 refs., 5 figs.

  3. Land use regulation and intraregional population-employment interaction

    E-Print Network [OSTI]

    Kim, JH; Hewings, GJD

    2013-01-01T23:59:59.000Z

    Levine J (2006) Zoned out: Regulation, markets, and choicesprices, externalities, and regulation in U.S. metropolitanCT (2000) Land use regulation and new construction. Regional

  4. amip ii land-surface: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Standards Process Breakout Session June 15, 2005 Robert Wolfe NASA GSFC Code 614.5 & Raytheon ITSS 12;June 15, 2005 - Wolfe - San Diego 2 MODIS Land Surface Reflectance products:...

  5. Impact of Agricultural Practice on Regional Climate in a Coupled Land Surface Mesoscale Model

    E-Print Network [OSTI]

    Cooley, H.S.; Riley, W.J.; Torn, M.S.; He, Y.

    2004-01-01T23:59:59.000Z

    winter wheat belt on the mesoscale environment, Monthlygeneration Penn State/NCAR mesoscale model (MM5), NCAR,in a Coupled Land Surface Mesoscale Model H.S. Cooley Energy

  6. Coupling the high-complexity land surface model ACASA to the mesoscale model WRF

    E-Print Network [OSTI]

    Pyles, R. D.

    In this study, the Weather Research and Forecasting (WRF) model is coupled with the Advanced Canopy–Atmosphere–Soil Algorithm (ACASA), a high-complexity land surface model. Although WRF is a state-of-the-art regional ...

  7. Coupling the High Complexity Land Surface Model ACASA to the Mesoscale Model WRF

    E-Print Network [OSTI]

    Xu, L.

    In this study, the Weather Research and Forecasting Model (WRF) is coupled with the Advanced Canopy-Atmosphere-Soil Algorithm (ACASA), a high complexity land surface model. Although WRF is a state-of-the-art regional ...

  8. Multi-sensor large scale land surface data assimilation using ensemble approaches

    E-Print Network [OSTI]

    Zhou, Yuhua, Ph. D. Massachusetts Institute of Technology

    2006-01-01T23:59:59.000Z

    One of the ensemble Kalman filter's (EnKF) attractive features in land surface applications is its ability to provide distributional information. The EnKF relies on normality approximations that improve its efficiency but ...

  9. Interactions among bioenergy feedstock choices, landscape dynamics, and land use

    SciTech Connect (OSTI)

    Dale, Virginia H [ORNL; Kline, Keith L [ORNL; Wright, Lynn L [ORNL; Perlack, Robert D [ORNL; Downing, Mark [ORNL; Graham, Robin Lambert [ORNL

    2011-01-01T23:59:59.000Z

    Landscape implications of bioenergy feedstock choices are significant and depend on land-use practices and their environmental impacts. Although land-use changes and carbon emissions associated with bioenergy feedstock production are dynamic and complicated, lignocellulosic feedstocks may offer opportunities that enhance sustainability when compared to other transportation fuel alternatives. For bioenergy sustainability, major drivers and concerns revolve around energy security, food production, land productivity, soil carbon and erosion, greenhouse gas emissions, biodiversity, air quality, and water quantity and quality. The many implications of bioenergy feedstock choices require several indicators at multiple scales to provide a more complete accounting of effects. Ultimately, the long-term sustainability of bioenergy feedstock resources (as well as food supplies) throughout the world depends on land-use practices and landscape dynamics. Land-management decisions often invoke trade-offs among potential environmental effects and social and economic factors as well as future opportunities for resource use. The hypothesis being addressed in this paper is that sustainability of bioenergy feedstock production can be achieved via appropriately designed crop residue and perennial lignocellulosic systems. We find that decision makers need scientific advancements and adequate data that both provide quantitative and qualitative measures of the effects of bioenergy feedstock choices at different spatial and temporal scales and allow fair comparisons among available options for renewable liquid fuels.

  10. Plasma-Surface Interactions on Liquids

    SciTech Connect (OSTI)

    R. Bastasz; W. Eckstein

    2000-05-01T23:59:59.000Z

    Liquid plasma-facing surfaces have been suggested as an option for advanced fusion devices, particularly in regions where solid materials may not survive over long operating periods. Because liquid surfaces can be replenished, they offer the possibility of tolerating intense particle bombardment and of recovering from off-normal events. As a preliminary step in understanding the nature of plasma-surface interactions on liquids, the authors consider some of the surface processes occurring in liquids undergoing irradiation by energetic particles. These include (1) sputtering, (2) segregation of liquid component species and impurities, (3) evaporation, and (4) trapping and release of incident particles. Aspects of these processes are examined for several candidate liquids, which represent three types of low-Z liquids: pure metals (Li), metallic alloys (Sn-Li), and compound insulators (Li{sub 2}BeF{sub 4}).

  11. VIIRS narrowband to broadband land surface albedo conversion: formula and validation

    E-Print Network [OSTI]

    Liang, Shunlin

    albedo, such as the Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging broadband albedo (0.4­4.0 mm) of land surfaces from Visible/Infrared Imager/Radiometer Suite (VIIRS algorithm. 1. Introduction Albedo is a critical variable for accurate climate and surface energy balance

  12. Climate Policy 3 (2003) 149157 The climatic impacts of land surface change and carbon

    E-Print Network [OSTI]

    Pielke, Roger A.

    recognize that carbon sequestration in the terrestrial biosphere can reduce the build-up of carbon dioxide of the surface energy budget can affect the local, regional, and global climate. Given the goal of mitigatingClimate Policy 3 (2003) 149­157 The climatic impacts of land surface change and carbon management

  13. Land Surface Model Data Assimilation for Atmospheric Prediction

    E-Print Network [OSTI]

    Walker, Jeff

    remote sensing studies, using visible, thermal infrared (surface temperature) and microwave (passive, the first passive microwave sensor in space with appropriate frequencies for measuring near-surface soil of concurrent data has made evaluation of SMMR-based studies effectively impossible (Walker et al., 2003

  14. Land surface temperature estimation over the Northern Great Plains using passive microwave data from Nimbus 7

    E-Print Network [OSTI]

    Lambert, Vicki Michelle

    1987-01-01T23:59:59.000Z

    'ounds at the 95% Conffdence Level for Area! Case Study Grid Cells 65 74 LIST OF FIGURES Figure The electromagnetic spectrum Measured transmittance in the band 5. 0-25. 0 pm Detection of passive microwave energy by a passive microwave sensor . Page 15... brightness temperature versus land surface temperature for each of the four SMMR channels at row 08 column 22 Comparison of passive microwave brightness temperature versus land surface temperature for API & 5 mm and API & 5 mm for the 0. 818 channel...

  15. Interaction of CO with Surface PdZn Alloys. | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    with Surface PdZn Alloys. Interaction of CO with Surface PdZn Alloys. Abstract: The adsorption and bonding configuration of CO on clean and Zn-covered Pd(111) surfaces was studied...

  16. Stable water isotope simulation by current land-surface schemes:Results of IPILPS phase 1

    SciTech Connect (OSTI)

    Henderson-Sellers, A.; Fischer, M.; Aleinov, I.; McGuffie, K.; Riley, W.J.; Schmidt, G.A.; Sturm, K.; Yoshimura, K.; Irannejad, P.

    2005-10-31T23:59:59.000Z

    Phase 1 of isotopes in the Project for Intercomparison of Land-surface Parameterization Schemes (iPILPS) compares the simulation of two stable water isotopologues ({sup 1}H{sub 2} {sup 18}O and {sup 1}H{sup 2}H{sup 16}O) at the land-atmosphere interface. The simulations are off-line, with forcing from an isotopically enabled regional model for three locations selected to offer contrasting climates and ecotypes: an evergreen tropical forest, a sclerophyll eucalypt forest and a mixed deciduous wood. Here we report on the experimental framework, the quality control undertaken on the simulation results and the method of intercomparisons employed. The small number of available isotopically-enabled land-surface schemes (ILSSs) limits the drawing of strong conclusions but, despite this, there is shown to be benefit in undertaking this type of isotopic intercomparison. Although validation of isotopic simulations at the land surface must await more, and much more complete, observational campaigns, we find that the empirically-based Craig-Gordon parameterization (of isotopic fractionation during evaporation) gives adequately realistic isotopic simulations when incorporated in a wide range of land-surface codes. By introducing two new tools for understanding isotopic variability from the land surface, the Isotope Transfer Function and the iPILPS plot, we show that different hydrological parameterizations cause very different isotopic responses. We show that ILSS-simulated isotopic equilibrium is independent of the total water and energy budget (with respect to both equilibration time and state), but interestingly the partitioning of available energy and water is a function of the models' complexity.

  17. ARM - Cloud and Land Surface Interaction Campaign (CLASIC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492air Comments? We would love to heargovInstrumentstdma Comments?History OrganizationTwist OutreachCampaign

  18. ARM - Field Campaign - Cloud LAnd Surface Interaction Campaign (CLASIC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8LigovCampaignsCLEX-5 Campaign Comments? WeCampaigngovCampaignsCloud

  19. SGP Cloud and Land Surface Interaction Campaign (CLASIC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand Requirements RecentlyElectronicResourcesjobs RunningSEABRV2/01/12 Page3 SGP Cloud and

  20. Impact of Agricultural Practice on Regional Climate in a CoupledLand Surface Mesoscale Model

    SciTech Connect (OSTI)

    Cooley, H.S.; Riley, W.J.; Torn, M.S.; He, Y.

    2004-07-01T23:59:59.000Z

    The land surface has been shown to form strong feedbacks with climate due to linkages between atmospheric conditions and terrestrial ecosystem exchanges of energy, momentum, water, and trace gases. Although often ignored in modeling studies, land management itself may form significant feedbacks. Because crops are harvested earlier under drier conditions, regional air temperature, precipitation, and soil moisture, for example, affect harvest timing, particularly of rain-fed crops. This removal of vegetation alters the land surface characteristics and may, in turn, affect regional climate. We applied a coupled climate(MM5) and land-surface (LSM1) model to examine the effects of early and late winter wheat harvest on regional climate in the Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility in the Southern Great Plains, where winter wheat accounts for 20 percent of the land area. Within the winter wheat region, simulated 2 m air temperature was 1.3 C warmer in the Early Harvest scenario at mid-day averaged over the two weeks following harvest. Soils in the harvested area were drier and warmer in the top 10 cm and wetter in the 10-20 cm layer. Midday soils were 2.5 C warmer in the harvested area at mid-day averaged over the two weeks following harvest. Harvest also dramatically altered latent and sensible heat fluxes. Although differences between scenarios diminished once both scenarios were harvested, the short-term impacts of land management on climate were comparable to those from land cover change demonstrated in other studies.

  1. Exact three-dimensional spectral solution to surface-groundwater interactions with arbitrary surface topography

    E-Print Network [OSTI]

    surface topography Anders Wo¨rman,1 Aaron I. Packman,2 Lars Marklund,1 Judson W. Harvey,3 and Susa H. [1] It has been long known that land surface topography governs both groundwater flow patterns that the surface topography can be separated in a Fourier-series spectrum that provides an exact solution

  2. Land-use transition for bioenergy and climate stabilization: model comparison of drivers, impacts and interactions with other land use based mitigation options

    SciTech Connect (OSTI)

    Popp, Alexander; Rose, Steven K.; Calvin, Katherine V.; Van Vuuren, Detlef; Dietrich, Jan P.; Wise, Marshall A.; Stehfest, Eike; Humpenoder, Florian; Kyle, G. Page; Van Vliet, Jasper; Bauer, Nico; Lotze-Campen, Hermann; Klein, David; Kriegler, Elmar

    2014-04-01T23:59:59.000Z

    This study is a model comparison assessing the drivers and impacts of bioenergy production on the global land system and the interaction with other land use based mitigation options in the context of the EMF 27 project. We compare and evaluate results from three integrated assessment models (GCAM, IMAGE, and ReMIND/MAgPIE). All three models project that dedicated bioenergy crops and biomass residues are a potentially important and cost-effective component of the energy system. But bioenergy deployment levels and feedstock composition vary notably across models as do the implications for land-use and greenhouse gas emissions and the interaction with other land use based mitigation measures. Despite numerous model differences, we identify a few that are likely contributing to differences in land-use and emissions attributable to energy crop deployment.

  3. A Subbasin-based framework to represent land surface processes in an Earth System Model

    SciTech Connect (OSTI)

    Tesfa, Teklu K.; Li, Hongyi; Leung, Lai-Yung R.; Huang, Maoyi; Ke, Yinghai; Sun, Yu; Liu, Ying

    2014-05-20T23:59:59.000Z

    Realistically representing spatial heterogeneity and lateral land surface processes within and between modeling units in earth system models is important because of their implications to surface energy and water exchange. The traditional approach of using regular grids as computational units in land surface models and earth system models may lead to inadequate representation of lateral movements of water, energy and carbon fluxes, especially when the grid resolution increases. Here a new subbasin-based framework is introduced in the Community Land Model (CLM), which is the land component of the Community Earth System Model (CESM). Local processes are represented assuming each subbasin as a grid cell on a pseudo grid matrix with no significant modifications to the existing CLM modeling structure. Lateral routing of water within and between subbasins is simulated with the subbasin version of a recently-developed physically based routing model, Model for Scale Adaptive River Routing (MOSART). As an illustration, this new framework is implemented in the topographically diverse region of the U.S. Pacific Northwest. The modeling units (subbasins) are delineated from high-resolution Digital Elevation Model while atmospheric forcing and surface parameters are remapped from the corresponding high resolution datasets. The impacts of this representation on simulating hydrologic processes are explored by comparing it with the default (grid-based) CLM representation. In addition, the effects of DEM resolution on parameterizing topography and the subsequent effects on runoff processes are investigated. Limited model evaluation and comparison showed that small difference between the averaged forcing can lead to more significant difference in the simulated runoff and streamflow because of nonlinear horizontal processes. Topographic indices derived from high resolution DEM may not improve the overall water balance, but affect the partitioning between surface and subsurface runoff. More systematic analyses are needed to determine the relative merits of the subbasin representation compared to the commonly used grid-based representation, especially when land surface models are approaching higher resolutions.

  4. Diurnal and seasonal variations of wind farm impacts on land surface temperature over western Texas

    E-Print Network [OSTI]

    Zhou, Liming

    Diurnal and seasonal variations of wind farm impacts on land surface temperature over western Texas for the period of 2003­2011 over a region in West-Central Texas, where four of the world's largest wind farms by comparing the LST changes between wind farm pixels (WFPs) and nearby non wind farm pixels (NNWFPs) using

  5. Scales of temporal and spatial variability of midlatitude land surface temperature

    E-Print Network [OSTI]

    Vinnikov, Konstantin

    ] Meteorologists have used land surface temperature (LST) in the energy balance equations for a long time high spatial resolution infrared satellite observation of LST is possible only during clearsky weather conditions. Micro- wave radiometers that can monitor LST in cloudy conditions are not yet able to provide

  6. The influence of the land surface on hydrometeorology and ecology: new advances from modeling and satellite

    E-Print Network [OSTI]

    Small, Eric

    Resolution Imaging Spectroradiometer (MODIS) and EOS Advanced Microwave Scanning Radiometer (AMSR and through model initialization of soil moisture from High Resolution Land Data Assimilation System (HRLDAS moisture and sensible heat fluxes. For example, the variations of surface energy and moisture fluxes

  7. Analysis of badlands: coupling of tectonic and land surface processes in the Pyrenees of Spain

    E-Print Network [OSTI]

    Baer, Christian

    Analysis of badlands: coupling of tectonic and land surface processes in the Pyrenees of Spain MSc to rainstorms. In north-east Spain, sediment from rapidly eroding badlands has significantly reduced reservoir-funded research consortium (SESAM II) with partners at the University of Lleida, Spain

  8. Developing a TeraGrid Based Land Surface Hydrology and Weather Modeling Interface

    E-Print Network [OSTI]

    Jiang, Wen

    Developing a TeraGrid Based Land Surface Hydrology and Weather Modeling Interface Hsin-I Chang1 iclimate@purdue.edu -------------------- -------------------- 1 INTRODUCTION Real world hydrologic cyberinfrastructure (CI) has been articulated in many workshops and meetings of the environmental and hydrologic

  9. Evaluation of "all weather" microwave-derived land surface temperatures with in situ CEOP measurements

    E-Print Network [OSTI]

    Evaluation of "all weather" microwave-derived land surface temperatures with in situ CEOP conditions. Ts estimates from infrared satellite observations can only be derived under clear sky. Passive from Special Sensor Microwave/Imager measurements, with a spatial resolution of 0.25° × 0.25°, at least

  10. Land surface skin temperatures from a combined analysis of microwave and infrared satellite observations for an all-weather

    E-Print Network [OSTI]

    are homogeneous over large scales, with nearly constant albe- dos, high heat capacity, and infinite moisture supply. In contrast, land surfaces are highly variable in space, have lower heat capacity and limited vapor, cloud liquid water, and surface emissivities over land from a combined analysis of Special Sensor

  11. Charge Retention by Gold Clusters on Surfaces Prepared Using Soft Landing of Mass Selected Ions

    SciTech Connect (OSTI)

    Johnson, Grant E.; Priest, Thomas A.; Laskin, Julia

    2012-01-24T23:59:59.000Z

    Monodisperse gold clusters have been prepared on surfaces in different charge states through soft landing of mass-selected ions. Ligand-stabilized gold clusters were prepared in methanol solution by reduction of chloro(triphenylphosphine)gold(I) with borane tert-butylamine complex in the presence of 1,3-bis(diphenylphosphino)propane. Electrospray ionization was used to introduce the clusters into the gas-phase and mass-selection was employed to isolate a single ionic cluster species (Au11L53+, L = 1,3-bis(diphenylphosphino)propane) which was delivered to surfaces at well controlled kinetic energies. Using in-situ time of flight secondary ion mass spectrometry (TOF-SIMS) it is demonstrated that the Au11L53+ cluster retains its 3+ charge state when soft landed onto the surface of a 1H,1H,2H,2H-

  12. Investigations into Protein-Surface Interactions via Atomic Force Microscopy and Surface Plasmon Resonance

    E-Print Network [OSTI]

    Settle, Jenifer Kaye

    2012-08-31T23:59:59.000Z

    microscopy and surface plasmon resonance. Chapter one provides background information on protein surfaces interactions. Chapter 2 summarizes the techniques and surfaces utilized in the investigations in the following chapters. Chapter 3 provides background...

  13. Displays take new shape: An agenda for future interactive surfaces

    E-Print Network [OSTI]

    Benko, Hrvoje

    This workshop provides a forum for discussing emerging trends in interactive surfaces that leverage alternative display types and form factors to enable more expressive interaction with information. The goal of the workshop ...

  14. Effect of Surface Site Interactions on Potentiometric Titration...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    accumulation behavior on single crystal faces of metal oxide minerals. Citation: Chatman SME, PP Zarzycki, T Preocanin, and KM Rosso.2013."Effect of Surface Site Interactions on...

  15. Coastal DEMs integrate seafloor bathymetry and land topography to depict Earth's solid surface, and help us better understand a variety of ocean processes.

    E-Print Network [OSTI]

    Coastal DEMs integrate seafloor bathymetry and land topography to depict Earth's solid surface Sheet What is a coastal DEM? A coastal DEM depicts Earth's land surface and ocean bottom. It is made

  16. The role of land surface processes on the mesoscale simulation of the July 26, 2005 heavy rain event over Mumbai, India

    E-Print Network [OSTI]

    Niyogi, Dev

    The role of land surface processes on the mesoscale simulation of the July 26, 2005 heavy rain Mesoscale convection Weather research and forecast model Indian summer monsoon Land surface processes

  17. Physical Mechanisms of Interaction of Cold Plasma with Polymer Surfaces

    E-Print Network [OSTI]

    Bormashenko, Edward; Multanen, Victor; Shulzinger, Evgeny; Chaniel, Gilad

    2015-01-01T23:59:59.000Z

    Physical mechanisms of the interaction of cold plasmas with organic surfaces are discussed. Trapping of plasma ions by the CH2 groups of polymer surfaces resulting in their electrical charging is treated. Polyethylene surfaces were exposed to the cold radiofrequency air plasma for different intervals of time. The change in the wettability of these surfaces was registered. The experimentally established characteristic time scales of the interaction of cold plasma with polymer surfaces are inversely proportional to the concentration of ions. The phenomenological kinetic model of the electrical charging of polymer surfaces by plasmas is introduced and analyzed.

  18. Urban and land surface effects on the 30 July 2003 mesoscale convective system event observed in the southern Great Plains

    E-Print Network [OSTI]

    Niyogi, Dev

    Urban and land surface effects on the 30 July 2003 mesoscale convective system event observed/Atmosphere Mesoscale Prediction System (COAMPS 1 ) to investigate the impact of urban and land vegetation processes on the prediction of the mesoscale convective system (MCS) observed on 30 July 2003 in the vicinity of Oklahoma City

  19. RAMI4PILPS: An intercomparison of formulations for the partitioning of solar radiation in land surface models

    E-Print Network [OSTI]

    Ni-Meister, Wenge

    RAMI4PILPS: An intercomparison of formulations for the partitioning of solar radiation in land for the partitioning of solar radiation in land surface models, J. Geophys. Res., 116, G02019, doi:10.1029/2010JG001511 [e.g., Zeng et al., 2000; Dai et al., 2004]. The partitioning of solar radiation between

  20. Fluorocarbons: Surface Free Energies and van der Waals Interaction

    E-Print Network [OSTI]

    Chan, Derek Y C

    Letters Fluorocarbons: Surface Free Energies and van der Waals Interaction Calum J. Drummond surface free energies based on contact angle measurements with dispersive organic liquids depend of dispersive materials, the surface free energy per unit area of a solid organic material can be used

  1. Scalability of grid- and subbasin-based land surface modeling approaches for hydrologic simulations

    SciTech Connect (OSTI)

    Tesfa, Teklu K.; Leung, Lai-Yung R.; Huang, Maoyi; Li, Hongyi; Voisin, Nathalie; Wigmosta, Mark S.

    2014-03-27T23:59:59.000Z

    This paper investigates the relative merits of grid- and subbasin-based land surface modeling approaches for hydrologic simulations, with a focus on their scalability (i.e., abilities to perform consistently across a range of spatial resolutions) in simulating runoff generation. Simulations produced by the grid- and subbasin-based configurations of the Community Land Model (CLM) are compared at four spatial resolutions (0.125o, 0.25o, 0.5o and 1o) over the topographically diverse region of the U.S. Pacific Northwest. Using the 0.125o resolution simulation as the “reference”, statistical skill metrics are calculated and compared across simulations at 0.25o, 0.5o and 1o spatial resolutions of each modeling approach at basin and topographic region levels. Results suggest significant scalability advantage for the subbasin-based approach compared to the grid-based approach for runoff generation. Basin level annual average relative errors of surface runoff at 0.25o, 0.5o, and 1o compared to 0.125o are 3%, 4%, and 6% for the subbasin-based configuration and 4%, 7%, and 11% for the grid-based configuration, respectively. The scalability advantages of the subbasin-based approach are more pronounced during winter/spring and over mountainous regions. The source of runoff scalability is found to be related to the scalability of major meteorological and land surface parameters of runoff generation. More specifically, the subbasin-based approach is more consistent across spatial scales than the grid-based approach in snowfall/rainfall partitioning, which is related to air temperature and surface elevation. Scalability of a topographic parameter used in the runoff parameterization also contributes to improved scalability of the rain driven saturated surface runoff component, particularly during winter. Hence this study demonstrates the importance of spatial structure for multi-scale modeling of hydrological processes, with implications to surface heat fluxes in coupled land-atmosphere modeling.

  2. Development and application of WRF3.3-CLM4crop to study of agriculture - climate interaction

    E-Print Network [OSTI]

    Lu, Yaqiong

    2013-01-01T23:59:59.000Z

    Global Climate Change and United-States Agriculture, Nature,climate modeling Land surface modeling Agriculture and climate interaction Land use change

  3. Surface-Plasma Interaction on the Moon

    SciTech Connect (OSTI)

    Horanyi, M.; Wang, X.; Robertson, S.; Sternovsky, Z. [University of Colorado, Boulder, CO 80309-0392 (United States)

    2008-09-07T23:59:59.000Z

    The electrostatic levitation and transport of lunar dust remains a controversial science issue since the Apollo era. As a function of time and location, the lunar surface is exposed to solar wind plasma, UV radiation, and/or the plasma environment of our magnetosphere. Dust grains on the lunar surface emit and absorb plasma particles and are exposed to solar UV photons. There are several in situ and remote sensing observations that indicate that dusty plasma processes are responsible for the mobilization and transport of lunar soil. We briefly discuss the existing observations, and report on a series of experiments that address some of the most relevant processes acting on dusty surfaces exposed to plasmas and UV radiation.

  4. A Physically Based Runoff Routing Model for Land Surface and Earth System Models

    SciTech Connect (OSTI)

    Li, Hongyi; Wigmosta, Mark S.; Wu, Huan; Huang, Maoyi; Ke, Yinghai; Coleman, Andre M.; Leung, Lai-Yung R.

    2013-06-13T23:59:59.000Z

    A new physically based runoff routing model, called the Model for Scale Adaptive River Transport (MOSART), has been developed to be applicable across local, regional, and global scales. Within each spatial unit, surface runoff is first routed across hillslopes and then discharged along with subsurface runoff into a ‘‘tributary subnetwork’’ before entering the main channel. The spatial units are thus linked via routing through the main channel network, which is constructed in a scale-consistent way across different spatial resolutions. All model parameters are physically based, and only a small subset requires calibration.MOSART has been applied to the Columbia River basin at 1/ 168, 1/ 88, 1/ 48, and 1/ 28 spatial resolutions and was evaluated using naturalized or observed streamflow at a number of gauge stations. MOSART is compared to two other routing models widely used with land surface models, the River Transport Model (RTM) in the Community Land Model (CLM) and the Lohmann routing model, included as a postprocessor in the Variable Infiltration Capacity (VIC) model package, yielding consistent performance at multiple resolutions. MOSART is further evaluated using the channel velocities derived from field measurements or a hydraulic model at various locations and is shown to be capable of producing the seasonal variation and magnitude of channel velocities reasonably well at different resolutions. Moreover, the impacts of spatial resolution on model simulations are systematically examined at local and regional scales. Finally, the limitations ofMOSART and future directions for improvements are discussed.

  5. Geochemistry of Surface-Atmosphere Interactions on

    E-Print Network [OSTI]

    Withers, Paul

    state of the surface? #12;Carbonates on Venus ¥ CaCO3+SiO2 = CaSiO3+CO2(g) ¥ Psurface = Pbuffer. ¥ S in lower atmosphere is kinetically controlled ¥ CaCO3 + SO2 = CaSO4 + CO removes SO2 , deposits CaSO4 ¥ Fe rates ¥ Need more data, new spacecraft instruments #12;Handy Minerals ¥ SiO2 Quartz ¥ CaCO3 Calcite ¥ Ca

  6. Modeling the Summertime Climate of Southwest Asia: The Role of Land Surface Processes in Shaping the Climate of Semiarid Regions

    E-Print Network [OSTI]

    Marcella, Marc P.

    Presented is a study on the role of land surface processes in determining the summertime climate over the semiarid region of southwest Asia. In this region, a warm surface air temperature bias of 3.5°C is simulated in the ...

  7. Water balance in the Amazon basin from a land surface model ensemble

    SciTech Connect (OSTI)

    Getirana, Augusto; Dutra, Emanuel; Guimberteau, Matthieu; Kam, Jonghun; Li, Hongyi; Decharme, Bertrand; Zhang, Zhengqiu J.; Ducharne, Agnes; Boone, Aaron; Balsamo, Gianpaolo; Rodell, Matthew; Mounirou Toure, Ally; Xue, Yongkang; Peters-Lidard, Christa D.; Kumar, Sujay V.; Arsenault, Kristi Rae; Drapeau, Guillaume; Leung, Lai-Yung R.; Ronchail, Josyane; Sheffield, Justin

    2014-12-06T23:59:59.000Z

    Despite recent advances in modeling and remote sensing of land surfaces, estimates of the global water budget are still fairly uncertain. The objective of this study is to evaluate the water budget of the Amazon basin based on several state-of-the-art land surface model (LSM) outputs. Water budget variables [total water storage (TWS), evapotranspiration (ET), surface runoff (R) and baseflow (B)] are evaluated at the basin scale using both remote sensing and in situ data. Fourteen LSMs were run using meteorological forcings at a 3-hourly time step and 1-degree spatial resolution. Three experiments are performed using precipitation which has been rescaled to match monthly global GPCP and GPCC datasets and the daily HYBAM dataset for the Amazon basin. R and B are used to force the Hydrological Modeling and Analysis Platform (HyMAP) river routing scheme and simulated discharges are compared against observations at 165 gauges. Simulated ET and TWS are compared against FLUXNET and MOD16A2 evapotranspiration, and GRACE TWS estimates in different catchments. At the basin scale, simulated ET ranges from 2.39mm.d-1 to 3.26mm.d-1 and a low spatial correlation between ET and P indicates that evapotranspiration does not depend on water availability over most of the basin. Results also show that other simulated water budget variables vary significantly as a function of both the LSM and precipitation used, but simulated TWS generally agree at the basin scale. The best water budget simulations resulted from experiments using the HYBAM dataset, mostly explained by a denser rainfall gauge network the daily rescaling.

  8. Fundamental to the Cloud Land Surface Interaction Campaign (CLASIC) is understanding the relationships of the atmosphere and the land surface

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.Newof Energy ForrestalPrincetonF2:Bioenergywith emphasis on007

  9. Toward A National Early Warning System for Forest Disturbances Using Remotely Sensed Land Surface Phenology

    SciTech Connect (OSTI)

    HargroveJr., William Walter [USDA Forest Service; Spruce, Joe [NASA Stennis Space Center; Gasser, Gerry [NASA Stennis Space Center; Hoffman, Forrest M [ORNL

    2009-12-01T23:59:59.000Z

    We are using a statistical clustering method for delineating homogeneous ecoregions as a basis for identifying disturbances in forests through time over large areas, up to national and global extents. Such changes can be shown relative to past conditions, or can be predicted relative to present conditions, as with forecasts of future climatic change. This quantitative ecoregion approach can be used to predict destinations for populations whose local environments are forecast to become unsuitable and are forced to migrate as their habitat shifts, and is also useful for predicting the susceptibility of new locations to invasive species like Sudden Oak Death. EFETAC and our sister western center WWETAC, along with our NASA and ORNL collaborators, are designing a new national-scale early warning system for forest threats, called FIRST. Envisioned as a change-detection system, FIRST will identify all land surface cover changes at the MODIS observational scale, and then try to discriminate normal, expected seasonal changes from locations having unusual activity that may represent potential forest threats. As a start, we have developed new national data sets every 16 days from 2002 through 2008, based on land surface phenology, or timing of leaf-out in the spring and brown-down in the fall. Changes in such phenological maps will be shown to contain important information about vegetation health status across the United States. The standard deviation of the duration of fall can be mapped, showing places where length of fall is relatively constant or is variable in length from year to year.

  10. Tribological interaction between polytetrafluoroethylene and silicon oxide surfaces

    SciTech Connect (OSTI)

    Uçar, A.; Çopuro?lu, M.; Suzer, S., E-mail: suzer@fen.bilkent.edu.tr [Department of Chemistry, Bilkent University, 06800 Ankara (Turkey); Baykara, M. Z. [Department of Mechanical Engineering, Bilkent University, 06800 Ankara (Turkey); Ar?kan, O. [Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara (Turkey)

    2014-10-28T23:59:59.000Z

    We investigated the tribological interaction between polytetrafluoroethylene (PTFE) and silicon oxide surfaces. A simple rig was designed to bring about a friction between the surfaces via sliding a piece of PTFE on a thermally oxidized silicon wafer specimen. A very mild inclination (?0.5°) along the sliding motion was also employed in order to monitor the tribological interaction in a gradual manner as a function of increasing contact force. Additionally, some patterns were sketched on the silicon oxide surface using the PTFE tip to investigate changes produced in the hydrophobicity of the surface, where the approximate water contact angle was 45° before the transfer. The nature of the transferred materials was characterized by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). XPS results revealed that PTFE was faithfully transferred onto the silicon oxide surface upon even at the slightest contact and SEM images demonstrated that stable morphological changes could be imparted onto the surface. The minimum apparent contact pressure to realize the PTFE transfer is estimated as 5 kPa, much lower than reported previously. Stability of the patterns imparted towards many chemical washing processes lead us to postulate that the interaction is most likely to be chemical. Contact angle measurements, which were carried out to characterize and monitor the hydrophobicity of the silicon oxide surface, showed that upon PTFE transfer the hydrophobicity of the SiO{sub 2} surface could be significantly enhanced, which might also depend upon the pattern sketched onto the surface. Contact angle values above 100° were obtained.

  11. Interaction between water cluster ions and mica surface

    SciTech Connect (OSTI)

    Ryuto, Hiromichi, E-mail: ryuto@kuee.kyoto-u.ac.jp; Ohmura, Yuki; Nakagawa, Minoru; Takeuchi, Mitsuaki; Takaoka, Gikan H. [Photonics and Electronics Science and Engineering Center, Kyoto University, Nishikyo, Kyoto 615-8510 (Japan)

    2014-03-15T23:59:59.000Z

    Water cluster ion beams were irradiated on mica surfaces to investigate the interaction between molecular cluster ions and a mica surface. The contact angle of the mica surface increased with increasing dose of the water cluster ion beam, but the increase in the contact angle was smaller than that induced by an ethanol cluster ion beam. The surface roughness also increased with increasing dose of the water cluster ion beam, whereas the intensity of K 2p x-ray photoelectron spectroscopy peaks decreased with increasing dose of the water cluster ion beam. The decrease in the number of potassium atoms together with the increase in the surface roughness may be the causes of the increase in the contact angle.

  12. Ciliary contact interactions dominate surface scattering of swimming eukaryotes

    E-Print Network [OSTI]

    Vasily Kantsler; Jörn Dunkel; Marco Polin; Raymond E. Goldstein

    2013-01-17T23:59:59.000Z

    Interactions between swimming cells and surfaces are essential to many microbiological processes, from bacterial biofilm formation to human fertilization. However, in spite of their fundamental importance, relatively little is known about the physical mechanisms that govern the scattering of flagellated or ciliated cells from solid surfaces. A more detailed understanding of these interactions promises not only new biological insights into structure and dynamics of flagella and cilia, but may also lead to new microfluidic techniques for controlling cell motility and microbial locomotion, with potential applications ranging from diagnostic tools to therapeutic protein synthesis and photosynthetic biofuel production. Due to fundamental differences in physiology and swimming strategies, it is an open question whether microfluidic transport and rectification schemes that have recently been demonstrated for pusher-type microswimmers such as bacteria and sperm cells, can be transferred to puller-type algae and other motile eukaryotes, as it is not known whether long-range hydrodynamic or short-range mechanical forces dominate the surface interactions of these microorganisms. Here, using high-speed microscopic imaging, we present direct experimental evidence that the surface scattering of both mammalian sperm cells and unicellular green algae is primarily governed by direct ciliary contact interactions. Building on this insight, we predict and verify experimentally the existence of optimal microfluidic ratchets that maximize rectification of initially uniform Chlamydomonas reinhardtii suspensions. Since mechano-elastic properties of cilia are conserved across eukaryotic species, we expect that our results apply to a wide range of swimming microorganisms.

  13. Use of land surface remotely sensed satellite and airborne data for environmental exposure assessment in cancer research

    E-Print Network [OSTI]

    cancer and environmental contaminants, focusing primarily on agricultural chemical exposure assessmentUse of land surface remotely sensed satellite and airborne data for environmental exposure assessment in cancer research SUSAN K. MAXWELLa , JAYMIE R. MELIKERb AND PIERRE GOOVAERTSc a U.S. Geological

  14. Inverse Modeling of Hydrologic Parameters Using Surface Flux and Runoff Observations in the Community Land Model

    SciTech Connect (OSTI)

    Sun, Yu; Hou, Zhangshuan; Huang, Maoyi; Tian, Fuqiang; Leung, Lai-Yung R.

    2013-12-10T23:59:59.000Z

    This study demonstrates the possibility of inverting hydrologic parameters using surface flux and runoff observations in version 4 of the Community Land Model (CLM4). Previous studies showed that surface flux and runoff calculations are sensitive to major hydrologic parameters in CLM4 over different watersheds, and illustrated the necessity and possibility of parameter calibration. Two inversion strategies, the deterministic least-square fitting and stochastic Markov-Chain Monte-Carlo (MCMC) - Bayesian inversion approaches, are evaluated by applying them to CLM4 at selected sites. The unknowns to be estimated include surface and subsurface runoff generation parameters and vadose zone soil water parameters. We find that using model parameters calibrated by the least-square fitting provides little improvements in the model simulations but the sampling-based stochastic inversion approaches are consistent - as more information comes in, the predictive intervals of the calibrated parameters become narrower and the misfits between the calculated and observed responses decrease. In general, parameters that are identified to be significant through sensitivity analyses and statistical tests are better calibrated than those with weak or nonlinear impacts on flux or runoff observations. Temporal resolution of observations has larger impacts on the results of inverse modeling using heat flux data than runoff data. Soil and vegetation cover have important impacts on parameter sensitivities, leading to the different patterns of posterior distributions of parameters at different sites. Overall, the MCMC-Bayesian inversion approach effectively and reliably improves the simulation of CLM under different climates and environmental conditions. Bayesian model averaging of the posterior estimates with different reference acceptance probabilities can smooth the posterior distribution and provide more reliable parameter estimates, but at the expense of wider uncertainty bounds.

  15. Q&A on "Impacts of Wind Farms on Land Surface Temperature" Published by Nature Climate Change on April 29, 2012

    E-Print Network [OSTI]

    Zhou, Liming

    1 Q&A on "Impacts of Wind Farms on Land Surface Temperature" Published by Nature Climate Change? This study presents the first observational evidence of wind farm impacts on land surface temperature downwind of wind farms. Why do the operating wind turbines warm nighttime temperature? This warming effect

  16. Surface interactions involved in flashover with high density electronegative gases.

    SciTech Connect (OSTI)

    Hodge, Keith Conquest; Warne, Larry Kevin; Jorgenson, Roy Eberhardt; Wallace, Zachariah Red; Lehr, Jane Marie

    2010-01-01T23:59:59.000Z

    This report examines the interactions involved with flashover along a surface in high density electronegative gases. The focus is on fast ionization processes rather than the later time ionic drift or thermalization of the discharge. A kinetic simulation of the gas and surface is used to examine electron multiplication and includes gas collision, excitation and ionization, and attachment processes, gas photoionization and surface photoemission processes, as well as surface attachment. These rates are then used in a 1.5D fluid ionization wave (streamer) model to study streamer propagation with and without the surface in air and in SF6. The 1.5D model therefore includes rates for all these processes. To get a better estimate for the behavior of the radius we have studied radial expansion of the streamer in air and in SF6. The focus of the modeling is on voltage and field level changes (with and without a surface) rather than secondary effects, such as, velocities or changes in discharge path. An experiment has been set up to carry out measurements of threshold voltages, streamer velocities, and other discharge characteristics. This setup includes both electrical and photographic diagnostics (streak and framing cameras). We have observed little change in critical field levels (where avalanche multiplication sets in) in the gas alone versus with the surface. Comparisons between model calculations and experimental measurements are in agreement with this. We have examined streamer sustaining fields (field which maintains ionization wave propagation) in the gas and on the surface. Agreement of the gas levels with available literature is good and agreement between experiment and calculation is good also. Model calculations do not indicate much difference between the gas alone versus the surface levels. Experiments have identified differences in velocity between streamers on the surface and in the gas alone (the surface values being larger).

  17. Non-Contact Friction for Ion-Surface Interactions

    E-Print Network [OSTI]

    U. D. Jentschura; G. Lach

    2015-04-21T23:59:59.000Z

    Non-contact friction forces are exerted on physical systems through dissipative processes, when the two systems are not in physical contact with each other, or, in quantum mechanical terms, when the overlap of their wave functions is negligible. Non-contact friction is mediated by the exchange of virtual quanta, with the additional requirement that the scattering process needs to have an inelastic component. For finite-temperature ion-surface interactions, the friction is essentially caused by Ohmic resistance due to the motion of the image charge moving in a dielectric material. A conceivable experiment is difficult because the friction force needs to be isolated from the interaction with the image charge, which significantly distorts the ion's flight path. We propose an experimental setup which is designed to minimize the influence of the image charge interaction though a compensation mechanism, and evaluate the energy loss due to non-contact friction for helium ions (He+) interacting with gold, vanadium, titanium and graphite surfaces. Interactions with the infinite series of mirror charges in the plates are summed in terms of the logarithmic derivatives of the Gamma function, and of the Hurwitz zeta function.

  18. Analysis of process controls in land surface hydrological cycle over the continental United States

    E-Print Network [OSTI]

    Syed, Tajdarul Hassan; Lakshimi, V; Paleologos, E; Lohmann, D; Mitchell, K; Famiglietti, J S

    2004-01-01T23:59:59.000Z

    2004), Analysis of process controls in land surfacelack of understanding of the process controls in the surfacehydrologic cycle and the process controls can lead us to a

  19. Utilizing CLASIC observations and multiscale models to study the impact of improved Land surface representation on modeling cloud- convection

    SciTech Connect (OSTI)

    Niyogi, Devdutta S. [Purdue

    2013-06-07T23:59:59.000Z

    The CLASIC experiment was conducted over the US southern great plains (SGP) in June 2007 with an objective to lead an enhanced understanding of the cumulus convection particularly as it relates to land surface conditions. This project was design to help assist with understanding the overall improvement of land atmosphere convection initiation representation of which is important for global and regional models. The study helped address one of the critical documented deficiency in the models central to the ARM objectives for cumulus convection initiation and particularly under summer time conditions. This project was guided by the scientific question building on the CLASIC theme questions: What is the effect of improved land surface representation on the ability of coupled models to simulate cumulus and convection initiation? The focus was on the US Southern Great Plains region. Since the CLASIC period was anomalously wet the strategy has been to use other periods and domains to develop the comparative assessment for the CLASIC data period, and to understand the mechanisms of the anomalous wet conditions on the tropical systems and convection over land. The data periods include the IHOP 2002 field experiment that was over roughly same domain as the CLASIC in the SGP, and some of the DOE funded Ameriflux datasets.

  20. Influence of Dynamic Land Use and Land Cover Change on Simulated Global Terrestrial Carbon and Nitrogen Cycles, Climate-carbon Cycle Feedbacks, and Interactions with Rising CO2 and Anthropogenic Nitrogen Deposition

    SciTech Connect (OSTI)

    Thornton, Peter E [ORNL; Hoffman, Forrest M [ORNL; Hurtt, George C [University of Hew Hampshire

    2009-12-01T23:59:59.000Z

    Previous work has demonstrated the sensitivity of terrestrial net carbon exchange to disturbance history and land use patterns at the scale of individual sites or regions. Here we show the influence of land use and land cover dynamics over the historical period 1850-present on global-scale carbon, nutrient, water, and energy fluxes. We also explore the spatial and temporal details of interactions among land use and disturbance history, rising atmospheric carbon dioxide consentation, and increasing anthropogenic nitrogen deposition. Our simulations show that these interactions are significant, and that their importance grows over time, expressed as a fraction of the independent forcing terms. We conclude with an analysis of the influence of these interactions on the sign and magnitude of global climate-carbon cycle feedbacks.

  1. Ecosystem feedbacks to climate change in California: Development, testing, and analysis using a coupled regional atmosphere and land-surface model (WRF3-CLM3.5)

    SciTech Connect (OSTI)

    Subin, Z.M.; Riley, W.J.; Kueppers, L.M.; Jin, J.; Christianson, D.S.; Torn, M.S.

    2010-11-01T23:59:59.000Z

    A regional atmosphere model [Weather Research and Forecasting model version 3 (WRF3)] and a land surface model [Community Land Model, version 3.5 (CLM3.5)] were coupled to study the interactions between the atmosphere and possible future California land-cover changes. The impact was evaluated on California's climate of changes in natural vegetation under climate change and of intentional afforestation. The ability of WRF3 to simulate California's climate was assessed by comparing simulations by WRF3-CLM3.5 and WRF3-Noah to observations from 1982 to 1991. Using WRF3-CLM3.5, the authors performed six 13-yr experiments using historical and future large-scale climate boundary conditions from the Geophysical Fluid Dynamics Laboratory Climate Model version 2.1 (GFDL CM2.1). The land-cover scenarios included historical and future natural vegetation from the Mapped Atmosphere-Plant-Soil System-Century 1 (MC1) dynamic vegetation model, in addition to a future 8-million-ha California afforestation scenario. Natural vegetation changes alone caused summer daily-mean 2-m air temperature changes of -0.7 to +1 C in regions without persistent snow cover, depending on the location and the type of vegetation change. Vegetation temperature changes were much larger than the 2-m air temperature changes because of the finescale spatial heterogeneity of the imposed vegetation change. Up to 30% of the magnitude of the summer daily-mean 2-m air temperature increase and 70% of the magnitude of the 1600 local time (LT) vegetation temperature increase projected under future climate change were attributable to the climate-driven shift in land cover. The authors projected that afforestation could cause local 0.2-1.2 C reductions in summer daily-mean 2-m air temperature and 2.0-3.7 C reductions in 1600 LT vegetation temperature for snow-free regions, primarily because of increased evapotranspiration. Because some of these temperature changes are of comparable magnitude to those projected under climate change this century, projections of climate and vegetation change in this region need to consider these climate-vegetation interactions.

  2. Sensitivity of Surface Flux Simulations to Hydrologic Parameters Based on an Uncertainty Quantification Framework Applied to the Community Land Model

    SciTech Connect (OSTI)

    Hou, Zhangshuan; Huang, Maoyi; Leung, Lai-Yung R.; Lin, Guang; Ricciuto, Daniel M.

    2012-08-10T23:59:59.000Z

    Uncertainties in hydrologic parameters could have significant impacts on the simulated water and energy fluxes and land surface states, which will in turn affect atmospheric processes and the carbon cycle. Quantifying such uncertainties is an important step toward better understanding and quantification of uncertainty of integrated earth system models. In this paper, we introduce an uncertainty quantification (UQ) framework to analyze sensitivity of simulated surface fluxes to selected hydrologic parameters in the Community Land Model (CLM4) through forward modeling. Thirteen flux tower footprints spanning a wide range of climate and site conditions were selected to perform sensitivity analyses by perturbing the parameters identified. In the UQ framework, prior information about the parameters was used to quantify the input uncertainty using the Minimum-Relative-Entropy approach. The quasi-Monte Carlo approach was applied to generate samples of parameters on the basis of the prior pdfs. Simulations corresponding to sampled parameter sets were used to generate response curves and response surfaces and statistical tests were used to rank the significance of the parameters for output responses including latent (LH) and sensible heat (SH) fluxes. Overall, the CLM4 simulated LH and SH show the largest sensitivity to subsurface runoff generation parameters. However, study sites with deep root vegetation are also affected by surface runoff parameters, while sites with shallow root zones are also sensitive to the vadose zone soil water parameters. Generally, sites with finer soil texture and shallower rooting systems tend to have larger sensitivity of outputs to the parameters. Our results suggest the necessity of and possible ways for parameter inversion/calibration using available measurements of latent/sensible heat fluxes to obtain the optimal parameter set for CLM4. This study also provided guidance on reduction of parameter set dimensionality and parameter calibration framework design for CLM4 and other land surface models under different hydrologic and climatic regimes.

  3. Comparison of avian species diversity and densities on non-mined and reclaimed surface-mined land in east-central Texas

    E-Print Network [OSTI]

    Wenzel, Dawn Nicole

    2006-10-30T23:59:59.000Z

    Surface mining often changes the native landscape and vegetation of an area. Reclamation is used to counter this change, with the goal of restoring the land to its original pre-mined state. The process of reclamation creates early successional...

  4. Soft-Landing of Peptides onto Self-Assembled Monolayer Surfaces...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and hydrogenated self-assembled monolayer surfaces (FSAM and HSAM) surfaces using a Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) specially designed...

  5. Impact of land use and precipitation changes on surface temperature trends in Argentina

    E-Print Network [OSTI]

    Kalnay, Eugenia

    with the introduction of satellite data. [5] It is not clear what causes this lack of apparent warming in this region studies [Lim et al., 2005, 2008] indicate that the response to global warming may be st to most other land areas, over most of Argentina there has been net cooling, not warming (about �0.04°C

  6. Albedo estimates for land surface models and support for a new paradigm based on foliage nitrogen concentration

    SciTech Connect (OSTI)

    Hollinger, D. [USDA Forest Service; Ollinger, S. V. [University of Hew Hampshire; Richardson, A. D. [University of Hew Hampshire; Martin, M. E. [University of New Hampshire; Meyers, T. P. [NOAA ATDD; Dail, D. B. [University of Maine; Scott, N. A. [Queens University, Kingston, ON, Canada; Arkebauer, T. J. [University of Nebraska, Lincoln; Baldocchi, D. D. [University of California, Berkeley; Clark, K. L. [USDA Forest Service; Curtis, Peter [Ohio State University, The, Columbus; Davis, K. J. [Pennsylvania State University; Desai, Desai Ankur R. [University of Wisconsin, Madison; Dragoni, Danilo [Indiana University; Goulden, M. L. [University of California, Irvine; Gu, Lianhong [ORNL; Katul, G. G. [Duke University; Pallardy, Stephen G. [University of Missouri; Pawu, K. T. [University of California, Davis; Schmid, H. P. [IFU, FZK IMK, Institute of Meteorology & Climate, Garmisch Partenkirchen, Germany; Stoy, P. C. [University of Edinburgh; Suyker, A. E. [University of Nebraska, Lincoln; Verma, Shashi [University of Nebraska

    2009-02-01T23:59:59.000Z

    Vegetation albedo is a critical component of the Earth s climate system, yet efforts to evaluate and improve albedo parameterizations in climate models have lagged relative to other aspects of model development. Here, we calculated growing season albedos for deciduous and evergreen forests, crops, and grasslands based on over 40 site-years of data from the AmeriFlux network and compared them with estimates presently used in the land surface formulations of a variety of climate models. Generally, the albedo estimates used in land surface models agreed well with this data compilation. However, a variety of models using fixed seasonal estimates of albedo overestimated the growing season albedo of northerly evergreen trees. In contrast, climatemodels that rely on a common two-stream albedo submodel provided accurate predictions of boreal needle-leaf evergreen albedo but overestimated grassland albedos. Inverse analysis showed that parameters of the two-stream model were highly correlated. Consistent with recent observations based on remotely sensed albedo, the AmeriFlux dataset demonstrated a tight linear relationship between canopy albedo and foliage nitrogen concentration (for forest vegetation: albedo 50.0110.071%N, r250.91; forests, grassland, and maize: albedo50.0210.067%N, r250.80). However, this relationship saturated at the higher nitrogen concentrations displayed by soybean foliage. We developed similar relationships between a foliar parameter used in the two-stream albedo model and foliage nitrogen concentration. These nitrogen-based relationships can serve as the basis for a new approach to land surface albedo modeling that simplifies albedo estimation while providing a link to other important ecosystem processes.

  7. Coverage Dependent Charge Reduction of Cationic Gold Clusters on Surfaces Prepared Using Soft Landing of Mass-selected Ions

    SciTech Connect (OSTI)

    Johnson, Grant E.; Priest, Thomas A.; Laskin, Julia

    2012-11-29T23:59:59.000Z

    The ionic charge state of monodisperse cationic gold clusters on surfaces may be controlled by selecting the coverage of mass-selected ions soft landed onto a substrate. Polydisperse diphosphine-capped gold clusters were synthesized in solution by reduction of chloro(triphenylphosphine)gold(I) with borane tert-butylamine in the presence of 1,3-bis(diphenylphosphino)propane. The polydisperse gold clusters were introduced into the gas phase by electrospray ionization and mass selection was employed to select a multiply charged cationic cluster species (Au11L53+, m/z = 1409, L = 1,3-bis(diphenylphosphino)propane) which was delivered to the surfaces of four different self-assembled monolayers on gold (SAMs) at coverages of 1011 and 1012 clusters/mm2. Employing the spatial profiling capabilities of in-situ time-of-flight secondary ion mass spectrometry (TOF-SIMS) it is shown that, in addition to the chemical functionality of the monolayer (as demonstrated previously: ACS Nano, 2012, 6, 573) the coverage of cationic gold clusters on the surface may be used to control the distribution of ionic charge states of the soft-landed multiply charged clusters. In the case of a 1H,1H,2H,2H-perfluorodecanethiol SAM (FSAM) almost complete retention of charge by the deposited Au11L53+ clusters was observed at a lower coverage of 1011 clusters/mm2. In contrast, at a higher coverage of 1012 clusters/mm2, pronounced reduction of charge to Au11L52+ and Au11L5+ was observed on the FSAM. When soft landed onto 16- and 11-mercaptohexadecanoic acid surfaces on gold (16,11-COOH-SAMs), the mass-selected Au11L53+ clusters exhibited partial reduction of charge to Au11L52+ at lower coverage and additional reduction of charge to both Au11L52+ and Au11L5+ at higher coverage. The reduction of charge was found to be more pronounced on the surface of the shorter (thinner) C11 than the longer (thicker) C16-COOH-SAM. On the surface of the 1-dodecanethiol (HSAM) monolayer, the most abundant charge state was found to be Au11L52+ at lower coverage and Au11L5+ at higher coverage, respectively. A coverage-dependent electron tunneling mechanism is proposed to account for the observed reduction of charge of mass-selected multiply charged gold clusters soft landed on SAMs. The results demonstrate that one of the critical parameters that influence the chemical and physical properties of supported metal clusters, ionic charge state, may be controlled by selecting the coverage of charged species soft landed onto surfaces.

  8. Quantifying and relating land-surface and subsurface variability in permafrost environments using LiDAR and surface geophysical

    E-Print Network [OSTI]

    LiDAR and surface geophysical datasets S. S. Hubbard & C. Gangodagamage & B. Dafflon & H. Wainwright. Wullschleger Abstract The value of remote sensing and surface geophysical data for characterizing the spatial to extract geomorphic metrics, which potentially indicate drainage potential. Geophysical data were used

  9. Multiobjective calibration and sensitivity of a distributed land surface water and energy balance model

    E-Print Network [OSTI]

    Houser, Paul R; Gupta, Hoshin V; Shuttleworth, W. James; Famiglietti, James S

    2001-01-01T23:59:59.000Z

    identification and energy balance models on a tallgrassdata for surface energy balance evaluation of a semiaridWatershed. We are energy balance components over a semiarid

  10. Infrared Land Surface Emissivity in the Vicinity of the ARM SGP Central Facility

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn Other News link toInfluence ofQuickdegreeInfrared Land

  11. Direct measurements of ensemble particle and surface interactions on homogeneous and patterned substrates

    E-Print Network [OSTI]

    Wu, Hung-Jen

    2006-08-16T23:59:59.000Z

    in colloidal ensembles levitated above macroscopic surfaces. TIRM and VM are well established optical microscopy techniques for measuring normal and lateral colloidal excursions near macroscopic planar surfaces. The interactions between particle-particle...

  12. Land Reclamation Act (Missouri)

    Broader source: Energy.gov [DOE]

    It is the policy of the state to balance surface mining interests with the conservation of natural resources and land preservation. This Act authorizes the Land Reclamation Commission of the...

  13. Retrieving snow mass from GRACE terrestrial water storage change with a land surface model

    E-Print Network [OSTI]

    Yang, Zong-Liang

    by the Advanced Very High Resolution Radio- meter (AVHRR) is decreasing since middle 1980s in response to global are variations in surface albedo and surface energy budgets, sensible heat and water vapor fluxes-chan- nel Microwave Radiometer (SMMR) and the Advanced Microwave Scanning Radiometer (AMSR) provide a capa

  14. Influence of plasma surface interactions on tokamak startup

    SciTech Connect (OSTI)

    Goswami, Rajiv [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)] [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

    2013-08-15T23:59:59.000Z

    The startup phase of a tokamak is a complex phenomenon involving burnthrough of the low-Z impurities and rampup of I{sub p}, the plasma current. The design considerations of a tokamak are closely connected with the startup modeling. Plasma evolution is analysed using a zero-dimensional model. The particle and energy balance is considered of two subclasses of plasmas which are penetrable by neutral gas, together with another component, neutrals trapped in the wall. The first subclass includes plasmas being penetrated by slow neutrals of (?few eV) temperature. The second includes plasmas being penetrated only by fast neutrals having a temperature comparable to that of the ions. The impact of impurities on energy balance is considered through their generation by ion induced desorption of adsorbed oxygen on the first wall and physical and chemical sputtering of carbon. The paper demonstrates self-consistently that the evolution of initial phase of the discharge is intimately linked to the condition of the plasma facing components (PFCs) and the resultant plasma surface interactions.

  15. Mid-21st Century Changes to Surface Hydrology Over the Los Angeles Region

    E-Print Network [OSTI]

    Schwartz, Marla Ann

    2013-01-01T23:59:59.000Z

    regional climate and hydrology modeling. Earth Interactions,Brutsaert, W. , 2005. Hydrology: An Introduction. New York:advanced land-surface/hydrology model with the Penn State/

  16. An update on modeling land-ice/ocean interactions in CESM

    SciTech Connect (OSTI)

    Asay-davis, Xylar [Los Alamos National Laboratory

    2011-01-24T23:59:59.000Z

    This talk is an update on ongoing land-ice/ocean coupling work within the Community Earth System Model (CESM). The coupling method is designed to allow simulation of a fully dynamic ice/ocean interface, while requiring minimal modification to the existing ocean model (the Parallel Ocean Program, POP). The method makes use of an immersed boundary method (IBM) to represent the geometry of the ice-ocean interface without requiring that the computational grid be modified in time. We show many of the remaining development challenges that need to be addressed in order to perform global, century long climate runs with fully coupled ocean and ice sheet models. These challenges include moving to a new grid where the computational pole is no longer at the true south pole and several changes to the coupler (the software tool used to communicate between model components) to allow the boundary between land and ocean to vary in time. We discuss benefits for ice/ocean coupling that would be gained from longer-term ocean model development to allow for natural salt fluxes (which conserve both water and salt mass, rather than water volume).

  17. Nesting ecology of dickcissels on reclaimed surface-mined lands in Freestone County, Texas 

    E-Print Network [OSTI]

    Dixon, Thomas Pingul

    2005-02-17T23:59:59.000Z

    Surface mining and subsequent reclamation often results in the establishment of large areas of grassland that can benefit wildlife. Grasslands have declined substantially over the last 150 years, resulting in declines of ...

  18. The effect of stratigraphy and soil plasticity on the settlement characteristics of reclaimed surface mined land

    E-Print Network [OSTI]

    Rangel, Jorge Enrique

    1979-01-01T23:59:59.000Z

    THE EFFECT OF STRATIGRAPHY AND SOIL PLASTICITY ON THE SETTLEMENT CHARACTERISTICS OF FECLAIMED SURFACE MINED I~D A Thesis GORGE ENRIQUE RANGEL Submitted to the Graduate College of Texas ASM University in partial fulfillment of the regni ement... for the degree of MASTER OF SCIENCE December 1979 Major Subject: Geology THE EFFECT OF STRATIGRAPHY AND SOIL PLASTICITY ON &HA SETTLEMENT CHARACTERISTICS OF RECLAIMED SURFACE MINED LAI'1D Thesis by JORGE ENRIQDE RANGEL Approved as to style ana content...

  19. Climate and Energy-Water-Land System Interactions Technical Report to the U.S. Department of Energy in Support of the National Climate Assessment

    SciTech Connect (OSTI)

    Skaggs, Richard; Hibbard, Kathleen A.; Frumhoff, Peter; Lowry, Thomas; Middleton, Richard; Pate, Ron; Tidwell, Vincent C.; Arnold, J. G.; Averyt, Kristen; Janetos, Anthony C.; Izaurralde, Roberto C.; Rice, Jennie S.; Rose, Steven K.

    2012-03-01T23:59:59.000Z

    This report provides a framework to characterize and understand the important elements of climate and energy-water-land (EWL) system interactions. It identifies many of the important issues, discusses our understanding of those issues, and presents a long-term research program research needs to address the priority scientific challenges and gaps in our understanding. Much of the discussion is organized around two discrete case studies with the broad themes of (1) extreme events and (2) regional intercomparisons. These case studies help demonstrate unique ways in which energy-water-land interactions can occur and be influenced by climate.

  20. Gas-surface interaction and boundary conditions for the Boltzmann equation

    E-Print Network [OSTI]

    Mieussens, Luc

    Gas-surface interaction and boundary conditions for the Boltzmann equation St´ephane Brull, Pierre Equation. The interaction between the wall atoms and the gas molecules within a thin surface layer of the gas in the bulk flow. Boundary conditions are formally derived from this model by using classical

  1. Bragg spectroscopy for measuring Casimir-Polder interactions with Bose-Einstein condensates above corrugated surfaces

    E-Print Network [OSTI]

    Gustavo A. Moreno; Diego A. R. Dalvit; Esteban Calzetta

    2010-03-11T23:59:59.000Z

    We propose a method to probe dispersive atom-surface interactions by measuring via two-photon Bragg spectroscopy the dynamic structure factor of a Bose-Einstein condensate above corrugated surfaces. This method takes advantage of the condensate coherence to reveal the spatial Fourier components of the lateral Casimir-Polder interaction energy.

  2. Role of Climate Variability in Modulating the Surface Water and Groundwater Interaction

    E-Print Network [OSTI]

    Arumugam, Sankar

    from the ECHAM4.5 general circulation model indicate that it is possible to quantify groundwater variability; Groundwater-surface water interaction; Hydroclimatology; Forecasting. Introduction ClimateRole of Climate Variability in Modulating the Surface Water and Groundwater Interaction over

  3. Effect of One-Dimensional Field Data Assimilation on Land Surface Model Flux Estimates with Implications

    E-Print Network [OSTI]

    Walker, Jeff

    .W. Western1 1 Department of Civil and Environmental Engineering, The University of Melbourne, Victoria, Australia 2 CSIRO Marine and Atmospheric Research, Aspendale, Victoria, Australia Email: r Model (CBM) represent the exchange of energy and water between the earth's surface and lower atmosphere

  4. A continuous satellitederived global record of land surface evapotranspiration from 1983 to 2006

    E-Print Network [OSTI]

    Montana, University of

    using advanced very high resolution radiometer (AVHRR) GIMMS NDVI, NCEP/NCAR Reanalysis (NNR) daily climatologies, terrestrial water, and energy budgets and longterm water cycle changes. Citation: Zhang, K., J. S a critical link between terrestrial water, carbon, and surface energy exchanges. The world has experienced

  5. Diurnal cycle of land surface temperature in a desert encroachment zone as observed from satellites

    E-Print Network [OSTI]

    Sun, Donglian

    Very High Resolution Radiometer (AVHRR) that are limited in their ability to capture the full diurnal) project and the Department of Energy's Atmospheric Radiation Measurement (ARM) program, the ARM Mobile of the surface from satellites are possible. Infrared radiometers on polar orbiting satellites have been used

  6. Evaluation of Satellite Estimates of Land Surface Temperature from GOES over the United States

    E-Print Network [OSTI]

    Sun, Donglian

    , and it is an indicator of the energy balance at the earth's surface (Sellers et al. 1988). LST retrievals are more for several decades. The focus was on polar-orbiting systems, such as the Advanced Very High Resolution Radiometer (AVHRR) and the Moderate Resolution Imaging Spectroradiometer (MODIS), because of global coverage

  7. Surface bidirectional reflectance and albedo properties derived using a land coverbased approach with Moderate Resolution

    E-Print Network [OSTI]

    Li, Zhanqing

    spring vegetation green up and autumn leaf fall, as well as changes due to agricultural practices a pixel-based fitting process. A good agreement was generally found between different data sets complexity and temporal variations of surface properties mean that practical albedo estimates over large area

  8. From TableSystem to Tabletop: Integrating Technology into Interactive Surfaces

    E-Print Network [OSTI]

    Chapter 3 From Table­System to Tabletop: Integrating Technology into Interactive Surfaces Andreas or horizontal interaction spaces in order to capture volatile ideas by generating digital content that can be used during ongoing work. While many products are available for vertical interaction spaces, tabletop

  9. Quantifying the thermodynamic entropy budget of the land surface: is this useful?

    E-Print Network [OSTI]

    Brunsell, Nathaniel A.; Schymanski, S.J.; Kleidon, A.

    2011-06-20T23:59:59.000Z

    processes in the system. Latent heat transfer fundamentally couples the biosphere and the atmosphere as well as the mass and energy cycles as- sociated with surface-atmosphere transfer processes. Wang et al. (2007) suggested that vegetation attempts... that the role of vegetation is to increase the entropy production by altering the absorption of solar radiation and decreasing sur- face temperature. At the same time, vegetation increases the entropy transfer associated with the latent heat flux. This dy- namic...

  10. Surface Water Chemistry in White Oak Creek, North-East Texas: Effect of Land Use

    E-Print Network [OSTI]

    Watson, Eliza

    2012-02-14T23:59:59.000Z

    watersheds soils, leaches readily to surface waters. Manure can contribute a significant amount of phosphorus loading into adjacent streams from livestock agriculture (James et al. 2007). Contributions from dairy cattle in a watershed in southeastern... New York showed that in-stream fecal deposits from pastured cattle represented 10% of watershed phosphorus loadings (James et al. 2007). Additionally, it was found that livestock grazing along streams and riparian zones can also have adverse...

  11. Coherent ExcitonSurface-Plasmon-Polariton Interaction in Hybrid Metal-Semiconductor Nanostructures

    E-Print Network [OSTI]

    Oldenburg, Carl von Ossietzky Universität

    Coherent Exciton­Surface-Plasmon-Polariton Interaction in Hybrid Metal-Semiconductor Nanostructures 2008; published 8 September 2008) We report measurements of a coherent coupling between surface plasmon when placed close to a metallic nanostructure due to its coupling to surface plasmon polaritons (SPPs

  12. Protein-Lipid Interactions in Zein Films Investigated by Surface Plasmon Resonance

    E-Print Network [OSTI]

    Crofts, Antony R.

    Protein-Lipid Interactions in Zein Films Investigated by Surface Plasmon Resonance QIN WANG, ANTONY-assembled monolayers (SAMs) was detected by surface plasmon resonance (SPR). Gold substrates were prepared by thermal formed a uniform and featureless coverage. KEYWORDS: Zein; surface plasmon resonance; protein-fatty acid

  13. Earth is a dynamic, living oasis in the desolation of space. The land, oceans, and air interact in complex ways to give our planet a unique set

    E-Print Network [OSTI]

    Earth is a dynamic, living oasis in the desolation of space. The land, oceans, and air interact in this process. In the mid 1980s, NASA developed a systems-based approach to studying the Earth and called it "Earth System Science" to advance the knowledge of Earth as a planet. Space-based observations

  14. [Plant Signaling & Behavior 3:10, 839-841; October 2008]; 2008 Landes Bioscience The interaction between tomato plants and Clavibacter

    E-Print Network [OSTI]

    Sessa, Guido

    [Plant Signaling & Behavior 3:10, 839-841; October 2008]; ©2008 Landes Bioscience The interaction between tomato plants and Clavibacter michiganensis subsp. michiganensis (Cmm) represents a model and the attempt of a crop plant to counteract pathogen invasion. To investigate plant responses activated during

  15. A Long-term hydrologically based dataset of land surface fluxes and states for the conterminous1 U.S.: Update and extensions2

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Real, Santa Clara, CA 95053-056310 11 12 13 14 15 To be submitted to the Journal of Climate and energy exchanges at the20 land surface. These data are gridded at a spatial resolution of 1/16 degree data set has been widely used in water and31 energy budget studies, climate change assessments, drought

  16. A Long-term hydrologically based dataset of land surface fluxes and states for the conterminous1 U.S.: Update and extensions2

    E-Print Network [OSTI]

    Washington at Seattle, University of

    To be submitted to the Journal of Climate as an Expedited Contribution18 19 #12;2 ABSTRACT20 We describe United States, intended to aid in studies of water and energy exchanges at the22 land surface. These data of VIC. The previous data set has been widely used in water and33 energy budget studies, climate change

  17. Linear relationship between water wetting behavior and microscopic interactions of super-hydrophilic surfaces

    SciTech Connect (OSTI)

    Liu, Jian; Guo, Pan [Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800 (China) [Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Wang, Chunlei; Shi, Guosheng, E-mail: shiguosheng@sinap.ac.cn; Fang, Haiping [Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800 (China)] [Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201800 (China)

    2013-12-21T23:59:59.000Z

    Using molecular dynamics simulations, we show a fine linear relationship between surface energies and microscopic Lennard-Jones parameters of super-hydrophilic surfaces. The linear slope of the super-hydrophilic surfaces is consistent with the linear slope of the super-hydrophobic, hydrophobic, and hydrophilic surfaces where stable water droplets can stand, indicating that there is a universal linear behavior of the surface energies with the water-surface van der Waals interaction that extends from the super-hydrophobic to super-hydrophilic surfaces. Moreover, we find that the linear relationship exists for various substrate types, and the linear slopes of these different types of substrates are dependent on the surface atom density, i.e., higher surface atom densities correspond to larger linear slopes. These results enrich our understanding of water behavior on solid surfaces, especially the water wetting behaviors on uncharged super-hydrophilic metal surfaces.

  18. Surface-induced charge at the Ge (001) surface and its interaction with self-interstitials

    SciTech Connect (OSTI)

    Kamiyama, Eiji; Sueoka, Koji [Department of Communication Engineering, Okayama Prefectural University, 111 Kuboki, Soja-shi, Okayama-ken 719-1197 (Japan); Vanhellemont, Jan [Department of Solid State Sciences, Ghent University, B-9000 Gent (Belgium)

    2014-02-21T23:59:59.000Z

    The Ge (001) surface with dimer structure, is negatively charged while into the bulk, positive charges are observed even deeper than the fifteenth layer from the surface. This is different from the Si case. This charge distribution can lead to the repulsion of positively charged self-interstitials by the positively charged near surface layer in an implantation or irradiation process. Self-interstitial reflection by Ge surfaces had been proposed to explain the results of diffusion experiments during irradiation whereby positively charged self-interstitials are generated by collisions of highly energetic particles with Ge atoms. We investigated different Ge (001) surface comparing an as-cleaved surface with dangling bonds to a surface with dimer structure, and to a surface terminated by hydrogen atoms. The effect of these different surface terminations on the surface-induced charges in the near surface bulk were calculated by ab initio techniques.

  19. Effects of subsurface fracture interactions on surface deformation

    E-Print Network [OSTI]

    Jerry, Ruel (Ruel Valentine)

    2013-01-01T23:59:59.000Z

    Although the surface deformation resulting from the opening of a single fracture in a layered elastic half-space resembles the observed deformation at the InSalah site, it seems unlikely that only a single fracture is ...

  20. DOI: 10.1002/ijch.201100129 GasSurface Interactions on Quasicrystals

    E-Print Network [OSTI]

    Curtarolo, Stefano

    DOI: 10.1002/ijch.201100129 Gas­Surface Interactions on Quasicrystals Stefano Curtarolo,[a] Wahyu-energy electron dif- fraction (LEED) and grand canonical Monte Carlo (GCMC) was performed for Xe adsorption

  1. Scattering approach to dispersive atom-surface interactions

    SciTech Connect (OSTI)

    Dalvit, Diego [Los Alamos National Laboratory; Messina, Riccardo [LAB KASTLER BROSSEL; Maia Neto, Paulo [INSTITUTO DE FISICA UFRJ; Lambrecht, Astrid [LAB KASTLER BROSSEL; Reynaud, Serge [LAB KASTLER BROSSEL

    2009-01-01T23:59:59.000Z

    We develop the scattering approach for the dispersive force on a ground state atom on top of a corrugated surface. We present explicit results to first order in the corrugation amplitude. A variety of analytical results are derived in different limiting cases, including the van der Waals and Casimir-Polder regimes. We compute numerically the exact first-order dispersive potential for arbitrary separation distances and corrugation wavelengths, for a Rubidium atom on top of a silicon or gold corrugated surface. We consider in detail the correction to the proximity force approximation, and present a very simple approximation algorithm for computing the potential.

  2. Surface based remote sensing of aerosol-cloud interactions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructure ofIndustrialSupportingAlbedo at theSurface SoilSurface based

  3. Long-range interactions between probes, particles and surfaces

    SciTech Connect (OSTI)

    Ritchie, R.H.; Manson, J.R.

    1987-01-01T23:59:59.000Z

    A brief review is given of some applications of a novel form of self-energy theory. These include the image force experienced by an electron near a metal, the van der Waals interaction between two molecules and the polarization potential of atomic scattering theory.

  4. THE INTERACTIONS OF SURFACE DAMAGE AND RF CAVITY OPERATION

    E-Print Network [OSTI]

    Harilal, S. S.

    with short pulses. We work with a breakdown model where the breakdown trigger is caused by tensile stress due asperities that Work supported by USDoE, Office of High Energy Physics norem@anl.gov exist on the surface of damage produced in a breakdown event is , s2() = Ue-a , where we assume a proportionality to the energy

  5. Spherical Torus Plasma Interactions with Large-Area Liquid Lithium Surfaces in CDX-U

    E-Print Network [OSTI]

    California at Los Angeles, University of

    - 1 - Spherical Torus Plasma Interactions with Large-Area Liquid Lithium Surfaces in CDX-U R. KAITA of this concept, key liquid lithium-plasma interaction questions are being addressed in the CDX-U device[2 (PPPL) is a spherical torus (ST) dedicated to the exploration of liquid lithium as a potential solution

  6. Laser studies of the interaction of SiO with the surface of a thin film

    SciTech Connect (OSTI)

    Ho, P.; Buss, R.J. (Sandia National Labs., Albuquerque, NM (USA)); Weber, M.E. (Texas Instruments, Inc., Dallas, TX (USA))

    1990-01-01T23:59:59.000Z

    The interaction of SiO radicals from a SiCl{sub 4}/O{sub 2} plasma with the surface of a depositing thin film is studied with the IRIS (Imaging of Radicals Interacting with Surfaces) technique, which combines spatially-resolved laser-induced fluorescence with molecular beam methods. In contrast to previous results for SiH, SiO appears not to react at the surface of the depositing film, but desorbs with a cosine spatial distribution for a wide range of substrate temperatures. No evidence is observed for specular scattering of the molecules. 6 refs., 5 figs.

  7. Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies

    SciTech Connect (OSTI)

    Vijayakumar, M.; Hu, Jian Z.

    2013-10-15T23:59:59.000Z

    To analyze the lithium ion interaction with realistic graphene surfaces, we carried out dispersion corrected DFT-D3 studies on graphene with common point defects and chemisorbed oxygen containing functional groups along with defect free graphene surface. Our study reveals that, the interaction between lithium ion (Li+) and graphene is mainly through the delocalized ? electron of pure graphene layer. However, the oxygen containing functional groups pose high adsorption energy for lithium ion due to the Li-O ionic bond formation. Similarly, the point defect groups interact with lithium ion through possible carbon dangling bonds and/or cation-? type interactions. Overall these defect sites render a preferential site for lithium ions compared with pure graphene layer. Based on these findings, the role of graphene surface defects in lithium battery performance were discussed.

  8. Variation and Trends of Landscape Dynamics, Land Surface Phenology and Net Primary Production of the Appalachian Mountains

    SciTech Connect (OSTI)

    Wang, Yeqiao; Zhao, Jianjun; Zhou, Yuyu; Zhang, Hongyan

    2012-12-15T23:59:59.000Z

    The gradients of the Appalachian Mountains in elevations and latitudes provide a unique regional perspective of landscape variations in the eastern United States and a section of the southeastern Canada. This study reveals patterns and trends of landscape dynamics, land surface phenology and ecosystem production along the Appalachian Mountains using time series data from Global Inventory Modeling and Mapping Studies (GIMMS) and AVHRR Global Production Efficiency Model (GloPEM) datasets. We analyzed the spatial and temporal patterns of Normalized Difference Vegetation Index (NDVI), length of growing season (LOS) and net primary production (NPP) of selected ecoregions along the Appalachian Mountains regions. We compared the results out of the Appalachian Mountains regions in different spatial contexts including the North America and the Appalachian Trail corridor area. To reveal latitudinal variations we analyzed data and compared the results between 30°N-40°N and 40°N-50°N latitudes. The result revealed significant decreases in annual peak NDVI in the Appalachian Mountains regions. The trend for the Appalachian Mountains regions was -0.0018 (R2=0.55, P<0.0001) NDVI unit decrease per year during 25 years between 1982 and 2006. The LOS had prolonged 0.3 day yr-1 during 25 years over the Appalachian Mountains regions. The NPP increased by 2.68 gC m-2yr-2 in Appalachian Mountains regions from 1981 to 2000. The comparison with the North America reveals the effects of topography and ecosystem compositions of the Appalachian Mountains. The comparison with the Appalachian Trail corridor area provides a regional mega-transect view of the measured variables.

  9. Materials of interaction : responsive materials in the design of transformable interactive surfaces

    E-Print Network [OSTI]

    Coelho, Marcelo

    2008-01-01T23:59:59.000Z

    Materials that embody computational properties are reshaping the ways in which we design, interact and communicate. This thesis looks at the topic of form transformation and how to bring the programmability and versatility ...

  10. The CSIRO Mk3L climate system model v1.0 coupled to the CABLE land surface scheme v1.4b: evaluation of the control climatology

    SciTech Connect (OSTI)

    Mao, Jiafu [ORNL; Phipps, S.J. [University of New South Wales; Pitman, A.J. [University of New South Wales; Wang, Yingping [CSIRO Marine and Atmospheric Research; Abramowitz, G. [University of New South Wales; Pak, B. [CSIRO Marine and Atmospheric Research

    2011-01-01T23:59:59.000Z

    The CSIRO Mk3L climate system model, a reduced-resolution coupled general circulation model, has previously been described in this journal. The model is configured for millennium scale or multiple century scale simulations. This paper reports the impact of replacing the relatively simple land surface scheme that is the default parameterisation in Mk3L with a sophisticated land surface model that simulates the terrestrial energy, water and carbon balance in a physically and biologically consistent way. An evaluation of the new model s near-surface climatology highlights strengths and weaknesses, but overall the atmospheric variables, including the near-surface air temperature and precipitation, are simulated well. The impact of the more sophisticated land surface model on existing variables is relatively small, but generally positive. More significantly, the new land surface scheme allows an examination of surface carbon-related quantities including net primary productivity which adds significantly to the capacity of Mk3L. Overall, results demonstrate that this reduced-resolution climate model is a good foundation for exploring long time scale phenomena. The addition of the more sophisticated land surface model enables an exploration of important Earth System questions including land cover change and abrupt changes in terrestrial carbon storage.

  11. Particle-Surface Interaction Databases in ALADDIN Format

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    These databases are listed as recommended resources by CFADC. They represent older data and are not necessarily DOE-originated or funded. However, they are cited in the DOE Data Explorer because of their availability through a DOE Data Center. The citations for these databases are: 1) Energy Dependence of Ion-Induced Sputtering Yields of Monatomic Solids in the Low Energy Region. N. Matsunami, Y. Yamamura, N. Itoh, H. Tawara, T. Kawamura. Report IPPJ-AM-52, Institute of Plasma Physics (National Institute for Fusion Science), Nagoya, Japan (1987); 2) Energy Dependence of the Yields of Ion-Induced Sputtering of Monatomic Solids. N. Maksunami, Y. Yamaura, Y. Itikawa, N. Itoh, Y. Kazumata, S. Miyagawer, K. Morita, R. Strimizu, H. Tawara. Report IPPJ-AM-32, Institute of Plasma Physics (National Institute for Fusion Science), Nagoya, Japan (1988); 3) Particle Reflection from Surfaces - A Recommended Data Base. E. W. Thomas, R. K. Janev and J. J. Smith. Report IAEA INDC(NDS)-249, July 1991; 4) Sputtering Data. W. Eckstein, C. Garcia-Rosales, J. Roth and W. Ottenberger. Max-Plank-Institute fur Plasmaphysik Report IPP9/82 (1993); 5) An Evaluated Database for Sputtering. E. W. Thomas, R. K. Janev, J. Botero, J. J. Smith and Y. Qiu. Report IAEA INDC(NDS)-287 (1993).

  12. What is the importance of climate model bias when projecting the impacts of climate change on land surface processes?

    SciTech Connect (OSTI)

    Liu, M. L.; Rajagopalan, K.; Chung, S. H.; Jiang, X.; Harrison, J. H.; Nergui, T.; Guenther, Alex B.; Miller, C.; Reyes, J.; Tague, C. L.; Choate, J. S.; Salathe, E.; Stockle, Claudio O.; Adam, J. C.

    2014-05-16T23:59:59.000Z

    Regional climate change impact (CCI) studies have widely involved downscaling and bias-correcting (BC) Global Climate Model (GCM)-projected climate for driving land surface models. However, BC may cause uncertainties in projecting hydrologic and biogeochemical responses to future climate due to the impaired spatiotemporal covariance of climate variables and a breakdown of physical conservation principles. Here we quantify the impact of BC on simulated climate-driven changes in water variables(evapotranspiration, ET; runoff; snow water equivalent, SWE; and water demand for irrigation), crop yield, biogenic volatile organic compounds (BVOC), nitric oxide (NO) emissions, and dissolved inorganic nitrogen (DIN) export over the Pacific Northwest (PNW) Region. We also quantify the impacts on net primary production (NPP) over a small watershed in the region (HJ Andrews). Simulation results from the coupled ECHAM5/MPI-OM model with A1B emission scenario were firstly dynamically downscaled to 12 km resolutions with WRF model. Then a quantile mapping based statistical downscaling model was used to downscale them into 1/16th degree resolution daily climate data over historical and future periods. Two series climate data were generated according to the option of bias-correction (i.e. with bias-correction (BC) and without bias-correction, NBC). Impact models were then applied to estimate hydrologic and biogeochemical responses to both BC and NBC meteorological datasets. These im20 pact models include a macro-scale hydrologic model (VIC), a coupled cropping system model (VIC-CropSyst), an ecohydrologic model (RHESSys), a biogenic emissions model (MEGAN), and a nutrient export model (Global-NEWS). Results demonstrate that the BC and NBC climate data provide consistent estimates of the climate-driven changes in water fluxes (ET, runoff, and water demand), VOCs (isoprene and monoterpenes) and NO emissions, mean crop yield, and river DIN export over the PNW domain. However, significant differences rise from projected SWE, crop yield from dry lands, and HJ Andrews’s ET between BC and NBC data. Even though BC post-processing has no significant impacts on most of the studied variables when taking PNW as a whole, their effects have large spatial variations and some local areas are substantially influenced. In addition, there are months during which BC and NBC post-processing produces significant differences in projected changes, such as summer runoff. Factor-controlled simulations indicate that BC post-processing of precipitation and temperature both substantially contribute to these differences at region scales. We conclude that there are trade-offs between using BC climate data for offline CCI studies vs. direct modeled climate data. These trade-offs should be considered when designing integrated modeling frameworks for specific applications; e.g., BC may be more important when considering impacts on reservoir operations in mountainous watersheds than when investigating impacts on biogenic emissions and air quality (where VOCs are a primary indicator).

  13. Combined surface solar brightening and increasing greenhouse effect support recent intensification of the global land-based hydrological cycle

    E-Print Network [OSTI]

    Fischlin, Andreas

    Combined surface solar brightening and increasing greenhouse effect support recent intensification. Scha¨r (2008), Combined surface solar brightening and increasing greenhouse effect support recent

  14. PUBLISHED ONLINE: 29 APRIL 2012 | DOI: 10.1038/NCLIMATE1505 Impacts of wind farms on land surface temperature

    E-Print Network [OSTI]

    Zhou, Liming

    LETTERS PUBLISHED ONLINE: 29 APRIL 2012 | DOI: 10.1038/NCLIMATE1505 Impacts of wind farms on land a region in west-central Texas, where four of the world's largest wind farms are located7 . Our results farms relative to nearby non-wind-farm regions. We attribute this warming primarily to wind farms as its

  15. Higher surface ozone concentrations over the Chesapeake Bay than over the adjacent land: Observations and models from the

    E-Print Network [OSTI]

    Dickerson, Russell R.

    , in high enough concentrations, is a hazardous secondary air pollutant regulated by the United States t s Observations of ozone are higher over the Chesapeake Bay than areas upwind on land. Dry deposition rates, slower dry deposition rates, and other lesser mechanisms, contribute to the local maximum of ozone over

  16. Theory of thin-skin eddy-current interaction with surface cracks N. Harfielda)

    E-Print Network [OSTI]

    Bowler, John R.

    Theory of thin-skin eddy-current interaction with surface cracks N. Harfielda) and J. R. Bowler; accepted for publication 14 July 1997 Eddy-current non-destructive evaluation is commonly performed of a typical crack. A thin-skin analysis of eddy currents is presented in which the electromagnetic fields

  17. Interactive Scanning of Haptic Textures and Surface Compliance Sheldon Andrews and Jochen Lang

    E-Print Network [OSTI]

    Lang, Jochen

    Interactive Scanning of Haptic Textures and Surface Compliance Sheldon Andrews and Jochen Lang SITE scanning is common practise for the acquisition of the geometry of objects. How- ever, in addition of objects in arbitrary environments. In this pa- per, we introduce a hand-held scanning approach

  18. Interactions of ozone and pathogens on the surface structure of Norway spruce needles

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interactions of ozone and pathogens on the surface structure of Norway spruce needles K. Ojanperä S and pathogens. It also acts as a barrier to air pollutants (Jeffree, 1986). The epicuticular wax of Norway and then a plate-like wax structure (Sauter and Voss, 1986). The life span of healthy needles of Norway spruce

  19. Ab-Initio Quantum Dynamics Calculation of Hydrogen Interaction with Surfaces

    E-Print Network [OSTI]

    Katsumoto, Shingo

    hydrogen economy [7], infrastructures have to be built. Development of efficient processes for hydro- gen, from an economics point-of- view, the transition to an economy based on hydrogen (energy) couldAb-Initio Quantum Dynamics Calculation of Hydrogen Interaction with Surfaces --Exploiting

  20. Interactions of mobile helium clusters with surfaces and grain boundaries of plasma-exposed tungsten

    SciTech Connect (OSTI)

    Hu, Lin; Maroudas, Dimitrios, E-mail: maroudas@ecs.umass.edu [Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003-9303 (United States); Hammond, Karl D.; Wirth, Brian D. [Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States)

    2014-05-07T23:59:59.000Z

    We report results of atomistic computations for the interactions of small mobile helium clusters (He{sub n}) with free surfaces and grain boundaries (GBs) in tungsten toward development of continuum drift-diffusion-reaction models for the dynamics of mobile helium clusters in plasma-exposed tungsten. Molecular-statics (MS) simulations based on reliable many-body interatomic potentials are carried out for He{sub n} (1???n???7) clusters near sinks to obtain the potential energy profiles of the He{sub n} clusters as a function of the clusters' center-of-mass distance from a sink. Sinks investigated include surfaces, GBs, and regions in the vicinity of junctions where GBs intersect free surfaces. Elastic interaction potentials based on elastic inclusion theory provide an excellent description of the MS results for the cluster-sink interactions. The key parameter in the elastic models is the sink segregation strength, which is found to increase with increasing cluster size. Such cluster-sink interactions are responsible for the migration of small helium clusters by drift and for helium segregation on surfaces and grain boundaries in tungsten. Such helium segregation on sinks is observed in large-scale molecular-dynamics simulations of helium aggregation in model polycrystalline tungsten at 933?K upon helium implantation.

  1. Excessive broadening of hydrogen Balmer lines for discharge-surface interaction monitoring

    SciTech Connect (OSTI)

    Konjevic, N.; Majstorovic, G. Lj.; Sisovic, N.M. [Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368 (Serbia and Montenegro); Military Academy, 11105 Belgrade, Generala Pavla Jurisica-Sturma 33 (Serbia and Montenegro); Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368 (Serbia and Montenegro)

    2005-06-20T23:59:59.000Z

    A comparative study of the hydrogen H{sub {alpha}} line shapes in titanium and stainless steel hollow cathode discharges, run with hydrogen or argon-hydrogen mixture illustrates the possibility of using the excessively broadened part of line profile for heavy particle-cathode surface interaction monitoring.

  2. ELECTRONIC PROCESSES IN THE INTERACTION OF IONS WITH SOLIDS AND SURFACES

    E-Print Network [OSTI]

    Muiño, Ricardo Díez

    , ETSII, UPV/EHU, Alda. Urquijo s/n, 48013 Bilbao, Spain 2 Departamento de F#19;#16;sica de Materiales-UPV/EHU, Aptdo. 1072, 20080 San Sebasti#19;an, Spain 3 Donostia International Physics Center (DIPC), P. Manuel de Lardizabal 4, 20018 San Sebasti#19;an, Spain Short title: Interaction of ions with solids and surfaces #12

  3. van der Waals Interaction, Surface Free Energies, and Contact Angles: Dispersive Polymers and Liquids

    E-Print Network [OSTI]

    Chan, Derek Y C

    van der Waals Interaction, Surface Free Energies, and Contact Angles: Dispersive Polymers and Liquids Calum J. Drummond*, and Derek Y. C. Chan CSIRO Division of Chemicals and Polymers, Private Bag 10 and ALVL are the non-retarded Hamaker constants for the heterointeraction between polymer and liquid across

  4. On the Interaction between Marine Boundary Layer Cellular Cloudiness and Surface Heat Fluxes

    SciTech Connect (OSTI)

    Kazil, J.; Feingold, G.; Wang, Hailong; Yamaguchi, T.

    2014-01-02T23:59:59.000Z

    The interaction between marine boundary layer cellular cloudiness and surface uxes of sensible and latent heat is investigated. The investigation focuses on the non-precipitating closed-cell state and the precipitating open-cell state at low geostrophic wind speed. The Advanced Research WRF model is used to conduct cloud-system-resolving simulations with interactive surface fluxes of sensible heat, latent heat, and of sea salt aerosol, and with a detailed representation of the interaction between aerosol particles and clouds. The mechanisms responsible for the temporal evolution and spatial distribution of the surface heat fluxes in the closed- and open-cell state are investigated and explained. It is found that the horizontal spatial structure of the closed-cell state determines, by entrainment of dry free tropospheric air, the spatial distribution of surface air temperature and water vapor, and, to a lesser degree, of the surface sensible and latent heat flux. The synchronized dynamics of the the open-cell state drives oscillations in surface air temperature, water vapor, and in the surface fluxes of sensible and latent heat, and of sea salt aerosol. Open-cell cloud formation, cloud optical depth and liquid water path, and cloud and rain water path are identified as good predictors of the spatial distribution of surface air temperature and sensible heat flux, but not of surface water vapor and latent heat flux. It is shown that by enhancing the surface sensible heat flux, the open-cell state creates conditions by which it is maintained. While the open-cell state under consideration is not depleted in aerosol, and is insensitive to variations in sea-salt fluxes, it also enhances the sea-salt flux relative to the closed-cell state. In aerosol-depleted conditions, this enhancement may replenish the aerosol needed for cloud formation, and hence contribute to the perpetuation of the open-cell state as well. Spatial homogenization of the surface fluxes is found to have only a small effect on cloud properties in the investigated cases. This indicates that sub-grid scale spatial variability in the surface flux of sensible and latent heat and of sea salt aerosol may not be required in large scale and global models to describe marine boundary layer cellular cloudiness.

  5. Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change, and

    E-Print Network [OSTI]

    1 Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change Changes · Due to ­ Climate Change ­ Land Cover / Land Use Change ­ Interaction of Climate and Land Cover Change · Resolution ­ Space ­ Time Hydro-Climatic Change · Variability vs. Change (Trends) · Point data

  6. Unveiling Surface Redox Charge Storage of Interacting Two-Dimensional Hetero-Nanosheets in Hierarchical Architectures

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mahmood, Qasim [Department of Chemical Engineering, College of Engineering, Kyung Hee University (Republic of Korea); Bak, Seong-Min [Brookhaven National Laboratory (BNL), Upton, NY (United States); Kim, Min G. [Beamline Research Division, Pohang Accelerator Laboratory, Pohang (Republic of Korea); Yun, Sol [School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon (Republic of Korea); Yang, Xiao-Qing [Brookhaven National Laboratory (BNL), Upton, NY (United States); Shin, Hyeon S. [Department of Energy Engineering, Department of Chemistry, and Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology(UNIST) (Republic of Korea); Kim, Woo S. [Department of Chemical Engineering, College of Engineering, Kyung Hee University (Republic of Korea); Braun, Paul V. [Department of Materials Science and Engineering Materials Research Laboratory and Beckman Institute, University of Illinois at Urbana?Champaign, Urbana, Illinois (United States); Park, Ho S. [School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon (Republic of Korea)

    2015-04-08T23:59:59.000Z

    Two-dimensional (2D) heteronanosheets are currently the focus of intense study due to the unique properties that emerge from the interplay between two low-dimensional nanomaterials with different properties. However, the properties and new phenomena based on the two 2D heteronanosheets interacting in a 3D hierarchical architecture have yet to be explored. Here, we unveil the surface redox charge storage mechanism of surface-exposed WS2 nanosheets assembled in a 3D hierarchical heterostructure using in situ synchrotron X-ray absorption and Raman spectroscopic methods. The surface dominating redox charge storage of WS2 is manifested in a highly reversible and ultrafast capacitive fashion due to the interaction of heteronanosheets and the 3D connectivity of the hierarchical structure. In contrast, compositionally identical 2D WS2 structures fail to provide a fast and high capacitance with different modes of lattice vibration. The distinctive surface capacitive behavior of 3D hierarchically structured heteronanosheets is associated with rapid proton accommodation into the in-plane W–S lattice (with the softening of the E2g bands), the reversible redox transition of the surface-exposed intralayers residing in the electrochemically active 1T phase of WS2 (with the reversible change in the interatomic distance and peak intensity of W–W bonds), and the change in the oxidation state during the proton insertion/deinsertion process. This proposed mechanism agrees with the dramatic improvement in the capacitive performance of the two heteronanosheets coupled in the hierarchical structure.

  7. Structure and dynamics of microbe-exuded polymers and their interactions with calcite surfaces.

    SciTech Connect (OSTI)

    Cygan, Randall Timothy; Mitchell, Ralph (Harvard University, Cambridge, MA); Perry, Thomas D. (Harvard University, Cambridge, MA)

    2005-12-01T23:59:59.000Z

    Cation binding by polysaccharides is observed in many environments and is important for predictive environmental modeling, and numerous industrial and food technology applications. The complexities of these organo-cation interactions are well suited to predictive molecular modeling studies for investigating the roles of conformation and configuration of polysaccharides on cation binding. In this study, alginic acid was chosen as a model polymer and representative disaccharide and polysaccharide subunits were modeled. The ability of disaccharide subunits to bind calcium and to associate with the surface of calcite was investigated. The findings were extended to modeling polymer interactions with calcium ions.

  8. Surfaces in the interaction of intense long wavelength laser light with plasmas

    SciTech Connect (OSTI)

    Jones, R.D.

    1985-01-01T23:59:59.000Z

    The role of surface in the interaction of intense CO/sub 2/ laser light with plasmas is reviewed. The collisionless absorption of long wavelength light is discussed. Specific comments on the role of ponderomotive forces and profile steepening on resonant absorption are made. It is shown that at intensities above 10/sup 15/W/cm/sup 2/ the absorption is determined by ion acoustic-like surface modes. It is demonstrated experimentally that harmonics up to the forty-sixth can be generated in steep density profiles. Computer simulations and theoretical mechanisms for this phenomena are presented. The self generation of magnetic fields on surfaces is discussed. The role these fields play in the lateral transport of energy, the insulation of the target from hot electrons, and the acceleration of fast ions is discussed.

  9. Recolonization of surface-mined lands by pocket gophers (Geomys breviceps) in East Texas Post Oak Savannah

    E-Print Network [OSTI]

    Gutierrez, Paula B

    2001-01-01T23:59:59.000Z

    Surface mining involves the use of heavy equipment that would theoretically create underground vibrations sensed by pocket gophers. To determine if vibrations cause pocket gopher movement away from areas being mined, gopher movements were monitored...

  10. Unveiling Surface Redox Charge Storage of Interacting Two-Dimensional Hetero-Nanosheets in Hierarchical Architectures

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mahmood, Qasim; Bak, Seong-Min; Kim, Min G.; Yun, Sol; Yang, Xiao-Qing; Shin, Hyeon S.; Kim, Woo S.; Braun, Paul V.; Park, Ho S.

    2015-04-08T23:59:59.000Z

    Two-dimensional (2D) heteronanosheets are currently the focus of intense study due to the unique properties that emerge from the interplay between two low-dimensional nanomaterials with different properties. However, the properties and new phenomena based on the two 2D heteronanosheets interacting in a 3D hierarchical architecture have yet to be explored. Here, we unveil the surface redox charge storage mechanism of surface-exposed WS2 nanosheets assembled in a 3D hierarchical heterostructure using in situ synchrotron X-ray absorption and Raman spectroscopic methods. The surface dominating redox charge storage of WS2 is manifested in a highly reversible and ultrafast capacitive fashion due to themore »interaction of heteronanosheets and the 3D connectivity of the hierarchical structure. In contrast, compositionally identical 2D WS2 structures fail to provide a fast and high capacitance with different modes of lattice vibration. The distinctive surface capacitive behavior of 3D hierarchically structured heteronanosheets is associated with rapid proton accommodation into the in-plane W–S lattice (with the softening of the E2g bands), the reversible redox transition of the surface-exposed intralayers residing in the electrochemically active 1T phase of WS2 (with the reversible change in the interatomic distance and peak intensity of W–W bonds), and the change in the oxidation state during the proton insertion/deinsertion process. This proposed mechanism agrees with the dramatic improvement in the capacitive performance of the two heteronanosheets coupled in the hierarchical structure.« less

  11. The land use climate change energy nexus

    SciTech Connect (OSTI)

    Dale, Virginia H [ORNL; Efroymson, Rebecca Ann [ORNL; Kline, Keith L [ORNL

    2011-01-01T23:59:59.000Z

    Landscape ecology focuses on the spatial patterns and processes of ecological and human interactions. These patterns and processes are being altered both by changing human resource-management practices and changing climate conditions associated, in part, with increases in atmospheric concentrations of greenhouse gases. Dominant resource extraction and land management activities involve energy, and the use of fossil energy is one of the key drivers behind increasing greenhouse gas emissions as well as land-use changes. Alternative energy sources (such as wind, solar, nuclear, and bioenergy) are being explored to reduce greenhouse gas emission rates. Yet, energy production, including alternative-energy options, can have a wide range of effects on land productivity, surface cover, albedo, and other factors that affect carbon, water and energy fluxes and, in turn, climate. Meanwhile, climate influences the potential output, relative efficiencies and sustainability of alternative energy sources. Thus climate change, energy choices, and land-use change are linked, and any analysis in landscape ecology that considers one of these factors should consider them all. This analysis explores the implications of those linkages and points out ecological patterns and processes that may be affected by these interactions.

  12. Role of Polymer Segment?Particle Surface Interactions in Controlling Nanoparticle Dispersions in Concentrated Polymer Solutions

    SciTech Connect (OSTI)

    Kim, So Youn; Zukoski, Charles F. (UIUC)

    2014-09-24T23:59:59.000Z

    The microstructure of particles suspended in concentrated polymer solutions is examined with small-angle X-ray scattering and small-angle neutron scattering. Of interest are changes to long wavelength particle density fluctuations in ternary mixtures of silica nanoparticles suspended in concentrated solutions of poly(ethylene glycol). The results are understood in terms of application of the pseudo-two-component polymer reference interaction site model (PRISM) theory modified to account for solvent addition via effective contact strength of interfacial attraction, {var_epsilon}{sub pc}, in an implicit manner. The combined experimental-theoretical study emphasizes the complex interactions between solvent, polymer, and particle surface that control particle miscibility but also demonstrate that these factors can all be understood in terms of variations of {var_epsilon}{sub pc}.

  13. A regional climate model study of how biomass burning aerosol impacts land-atmosphere interactions over the Amazon

    E-Print Network [OSTI]

    Chin, Mian

    wind divergence in the southern Amazon and anomalous wind convergence over the equatorial western radiation, consequently changing the surface energy and water fluxes, the atmospheric thermo- dynamic, Rainfall, and Climate (LBA-SMOCC), Smoke/Sulfates, Clouds and Radiation-Brazil (SCAR-B), ground based

  14. A modelling approach to carbon, water and energy feedbacks and interactions across the land-atmosphere interface. 

    E-Print Network [OSTI]

    Hill, Timothy C

    2007-01-01T23:59:59.000Z

    The climate is changing and the rate of this change is expected to increase. In the 20th century global surface temperatures rose by 0.6 (±0.2) K. Based on current model predictions, and economic forecasts, global temperature ...

  15. Coastal Public Lands Management Act (Texas)

    Broader source: Energy.gov [DOE]

    The coastal public lands of the state are managed in accordance with the following principles: (a) The natural resources of the surface land, including their aesthetic value and their ability to...

  16. The Surface Expression of Semidiurnal Internal Tides near a Strong Source at Hawaii. Part II: Interactions with Mesoscale Currents*

    E-Print Network [OSTI]

    : Interactions with Mesoscale Currents* C. CHAVANNE, P. FLAMENT, AND D. LUTHER School of Ocean and Earth Science in the light of the interaction of internal tides with energetic surface-intensified mesoscale currents locations at critical topographic slopes through idealized mesoscale currents approximating the observed

  17. Near-surface remote sensing of canopy architecture and land-atmosphere interactions in an oak savanna ecosystem

    E-Print Network [OSTI]

    Ryu, Youngryel

    2010-01-01T23:59:59.000Z

    sensor, built with light emitting diodes (LEDs), to monitorSun photometer with light emitting diodes as spectrallySen, C. (2009). Light emitting diode as sensor for miniature

  18. Near-surface remote sensing of canopy architecture and land-atmosphere interactions in an oak savanna ecosystem

    E-Print Network [OSTI]

    Ryu, Youngryel

    2010-01-01T23:59:59.000Z

    2007). Reduction of ecosystem productivity and respirationR. (2005). On the separation of net ecosystem exchange intoassimilation and ecosystem respiration: review and improved

  19. Atmosphere-Land-Surface Interaction over the Southern Great Plains: Diagnosis of Mechanisms from SGP ARM Data

    SciTech Connect (OSTI)

    Sumant Nigam

    2013-02-01T23:59:59.000Z

    Work reported included analysis of pentad (5 day) averaged data, proposal of a hypothesis concerning the key role of the Atlantic Multi-decadal Oscillation in 20th century drought and wet periods over the Great Plains, analysis of recurrent super-synoptic evolution of the Great Plains low-level jet, and study of pentad evolution of the 1988 drought and 1993 flood over the Great Plains from a NARR perspective on the atmospheric and terrestrial water balance.

  20. ER2 Instrumentation and Measurements for CLASIC (Cloud Land Surface Interaction Campaign) June-2007 SGP {Author-Jimmy Voyles}

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA :Work4/11 ENVIROISSUES PAGEMesoscopy andAbout Us »

  1. Helical Peptide Arrays on Self-Assembled Monolayer Surfaces Through Soft and Reactive Landing of Mass-Selected Ions

    SciTech Connect (OSTI)

    Wang, Peng; Laskin, Julia

    2008-08-01T23:59:59.000Z

    The ?-helix – the common building block of the protein secondary structure - plays an important role in determining protein structure and function. The biological function of the ?-helix is mainly attributed to its large macrodipole originating from the alignment of individual dipole moments of peptide bonds. Preparation of directionally aligned ?-helical peptide layers on substrates has attracted significant attention because the resulting strong net dipole is useful for a variety of applications in photonics, , molecular electronics, and catalysis. - In addition, conformationally-selected ?-helical peptide arrays can be used for detailed characterization of molecular recognition steps critical for protein folding, enzyme function and DNA binding by proteins. Existing technologies for the production of ?-helical peptide surfaces are based on a variety of solution phase synthetic strategies - that usually require relatively large quantities of purified materials.

  2. Interaction between surface wind and ocean circulation in the Carolina Capes in a coupled low-order model

    SciTech Connect (OSTI)

    Xie, L.; Pietrafesa, L.J.; Raman, S.

    1997-03-18T23:59:59.000Z

    Interactions between surface winds and ocean currents over an east-coast continental shelf are studied using a simple mathematical model. The model physics include cross-shelf advection of sea surface temperature (SST) by Ekman drift, upwelling due to Ekman transport divergence, differential heating of the low-level atmosphere by a cross-shelf SST gradient, and the Coriolis effect. Additionally, the effects of diabatic cooling of surface waters due to air-sea heat exchange and of the vertical density stratification on the thickness of the upper ocean Ekman layer are considered. The model results are qualitatively consistent with observed wind-driven coastal ocean circulation and surface wind signatures induced by SST. This simple model also demonstrates that two-way air-sea interaction plays a significant role in the subtidal frequency variability of coastal ocean circulation and mesoscale variability of surface wind fields over coastal waters.

  3. Interaction of atomic hydrogen with the {beta}-SiC(100) 3x2 surface and subsurface

    SciTech Connect (OSTI)

    D'angelo, M.; Enriquez, H.; Rodriguez, N.; Aristov, V. Yu.; Soukiassian, P.; Tejeda, A.; Michel, E. G.; Pedio, M.; Ottaviani, C.; Perfetti, P. [Laboratoire SIMA, DSM-DRECAM-SPCSI, Commissariat a l'Energie Atomique, Saclay, Bat. 462, 91191 Gif sur Yvette Cedex, France and Departement de Physique, Universite de Paris-Sud, 91405 Orsay Cedex (France); Departamento de Fisica de la Materia Condensada, Universidad Autonoma de Madrid, 28049 Madrid, Spain and Laboratoire SIMA, DSM-DRECAM-SPCSI, Commissariat a l'Energie Atomique, Saclay, Bat. 462, 91191 Gif sur Yvette Cedex (France); ISM-CNR, Via del fosso del cavaliere 100, 00133, Rome (Italy) and Elettra Sincrotrone Trieste, 34012 Basovizza (Italy)

    2007-10-28T23:59:59.000Z

    We investigate clean and atomic hydrogen exposed {beta}-SiC(100) 3x2 surfaces by synchrotron radiation-based Si 2p core-level photoemission spectroscopy. The clean 3x2 surface reconstruction exhibits three surface and subsurface components. Upon hydrogen exposures, those surface and subsurface components are shifted to lower binding energies by large values, indicating significant charge transfer to the surface and subsurface regions, in excellent agreement with the recently discovered H-induced {beta}-SiC(100) 3x2 surface metallization. In addition, the interaction of hydrogen results in a large reactive component at Si 2p supporting an asymmetric charge transfer in the third plane below the surface, in agreement with previous experimental investigations. However, the results are inconsistent with recent ab initio theoretical ''frozen'' calculations predicting H atom to be in a bridge-bond position.

  4. On the role of long range interactions for the adsorption of sexithiophene on Ag(110) surface

    SciTech Connect (OSTI)

    Matos, Jeronimo; Rojas, Tomas; Yildirim, Handan, E-mail: hyildirim@purdue.edu, E-mail: Abdelkader.Kara@ucf.edu; Kara, Abdelkader, E-mail: hyildirim@purdue.edu, E-mail: Abdelkader.Kara@ucf.edu [Department of Physics, University of Central Florida, Orlando, Florida, 32816 (United States)] [Department of Physics, University of Central Florida, Orlando, Florida, 32816 (United States)

    2014-04-14T23:59:59.000Z

    The adsorption characteristics of the sexithiophene (6T) molecule on Ag(110) are studied using density functional theory with the inclusion of van der Waals (vdW) interactions. The stable adsorption configurations on 6T on Ag(110) as well as the nature of bonding the Ag substrate are evaluated. We also assess the performance of the vdW-DF method in describing the adsorption, energetics, heights, as well as the interface characteristics with the Ag(110) surface. We find two lowest adsorption energy configurations, at which the 6T molecule aligns with its molecular long axis parallel and perpendicular to the [001] direction, to be energetically close to each other, suggesting that they may coexist. Our findings indicate a significant increase in the 6T adsorption energies upon the inclusion of vdW interactions with the highest increase obtained using the opt-type functionals, in particular with the optB86b-vdW functional. The revPBE-vdW and rPW86-vdW2 functionals lead to less enhancement in adsorption energies that is attributed to the strong repulsive nature of these functionals, in agreement with earlier predictions. Upon adsorption of the 6T molecule, the changes in the atomic and electronic structures of the 6T molecule and Ag surface are found to be negligible; there is no charge transfer, and no interface state is observed. The work function is reduced upon adsorption with the largest change is ?0.6 eV obtained using the optB88-vdW functional. The results are in good agreement with the available experimental observations of the adsorption configurations and the work function changes. Based on our results, we conclude that the nature of bonding for 6T on Ag(110) can be classified as strong physisorption.

  5. Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: Top-of-atmosphere albedo change by aerosols based on land surface types

    E-Print Network [OSTI]

    Chen, Yang; Li, Qinbin; Kahn, Ralph A; Randerson, James T; Diner, David J

    2009-01-01T23:59:59.000Z

    coincident MISR and MODIS aerosol optical depths over land2003), Estimates of the spectral aerosol single scatteringalbedo and aerosol radiative effects during SAFARI 2000, J.

  6. 2{pi} spectrometer: A new apparatus for the investigation of ion surface interaction

    SciTech Connect (OSTI)

    Morosov, V.A.; Kalinin, A.; Szilagyi, Z.; Barat, M.; Roncin, P. [Laboratoire des Collisions Atomiques et Moleculaires, Bat 351, Universite Paris Sud, Orsay Cedex F 91405 (France)] [Laboratoire des Collisions Atomiques et Moleculaires, Bat 351, Universite Paris Sud, Orsay Cedex F 91405 (France)

    1996-06-01T23:59:59.000Z

    A new spectrometer for studying ion surface interaction is described. This apparatus is built around a secondary electron and ion detector with a very large acceptance angle and made of 16 individual microchannel plate detectors located on a half sphere. A simultaneous detection of the scattered projectiles with an additional position sensitive detector allows measurements of the correlation between all these particles using a multicoincidence technique. With this spectrometer, a large variety of measurements are possible such as the energy spectra of the secondary electrons as well as the statistics of the number of ejected electrons, the scattering pattern of the reflected projectiles and their charge-state distribution, the analysis of the sputtered ions. Some examples are given concerning the impact of multiply charged ions on a LiF single crystal. The dependence of the secondary electron multiplicity as a function of the charge state, of the surface channeling condition, and of the scattering angle of the reflected ion, is given as a type of information provided by the analysis of the correlation. {copyright} {ital 1996 American Institute of Physics.}

  7. Laboratory investigations of the interaction between benzene and bare silicate grain surfaces

    E-Print Network [OSTI]

    J. D. Thrower; M. P. Collings; F. J. M. Rutten; M. R. S. McCoustra

    2008-12-17T23:59:59.000Z

    Experimental results on the thermal desorption of benzene (C6H6) from amorphous silica (SiO2) are presented. The amorphous SiO2 substrate was imaged using atomic force microscopy (AFM), revealing a surface morphology reminiscent of that of interplanetary dust particles (IDPs). Temperature programmed desorption (TPD) experiments were conducted for a wide range of C6H6 exposures, yielding information on both C6H6-SiO2 interactions and the C6H6-C6H6 interactions present in the bulk C6H6 ice. The low coverage experiments reveal complicated desorption behaviour that results both from porosity and roughness in the SiO2 substrate, and repulsive interactions between C6H6 molecules. Kinetic parameters were obtained through a combination of direct analysis of the TPD traces and kinetic modelling, demonstrating the coverage dependence of both desorption energy and pre-exponential factor. Experiments were also performed whereby the pores were blocked by pre-exposure of the SiO2 to water vapour. C6H6 was observed to be adsorbed preferentially on the SiO2 film not covered by H2O at the temperature at which these experiments were performed. This observation means that intermolecular repulsion likely becomes important at smaller C6H6 exposures on grains with a H2O mantle. Kinetic modelling of C6H6 multilayer desorption yields kinetic parameters in good agreement with previous studies, with the SiO2 having little impact on the desorption beyond the first few layers.

  8. A modelling approach to carbon, water and energy feedbacks and interactions across the

    E-Print Network [OSTI]

    ) Advanced Very High Resolution Radiometer BOREAS - (the) BOReal Ecosystem-Atmosphere Study C - Carbon CABi A modelling approach to carbon, water and energy feedbacks and interactions across the land partitioning of energy, the evapotranspiration of water and if the land-surface is a sink or a source of CO2

  9. 20LRO Sees Apollo 11 on the Moon! The LRO satellite recently imaged the Apollo 11 landing area on the surface of

    E-Print Network [OSTI]

    20LRO Sees Apollo 11 on the Moon! The LRO satellite recently imaged the Apollo 11 landing area meters long (1/4 the Apollo 11 module) and there are no such shadows in the image, other than the Apollo, which is why it was selected by Apollo-11 astronauts for a landing site. Space Math http

  10. Laser studies of the SiH radical/surface interaction during deposition of a thin film

    SciTech Connect (OSTI)

    Ho, P.; Buss, R.J.; Breiland, W.G.

    1988-01-01T23:59:59.000Z

    This paper presents a new method for studying the interaction of radicals with the surface of a depositing film using a combination of laser spectroscopy and molecular beam techniques. The reactivity of SiH molecules with the surface of a depositing a-Si:H film is measured to be at least 0.95, with no significant dependence on rotational state. 9 refs., 3 figs.

  11. Surfaces

    E-Print Network [OSTI]

    DeMaio, Ernest Vincent, 1964-

    1989-01-01T23:59:59.000Z

    Surfaces is a collection of four individual essays which focus on the characteristics and tactile qualities of surfaces within a variety of perceived landscapes. Each essay concentrates on a unique surface theme and purpose; ...

  12. Forces of Interaction between Surfaces Bearing Looped Polymer Brushes in Good Solvent.

    SciTech Connect (OSTI)

    Alonzo, Jose [Clemson University; Mays, Jimmy [ORNL; Kilbey, II, S Michael [ORNL

    2009-01-01T23:59:59.000Z

    In a previous publication we suggested [Huang et al., Macromolecules, 2008, 41, 1745-1752] that looped polymer brushes formed by tethering chains by both ends to a surface may exhibit a polydispersity-like effect due to a distribution of distances between tethering points, leading to segment density profiles dominated by a long and diffuse exponentially-decaying tail. To study this issue in more detail, the force profiles (forces of interaction as a function of separation distance) of a series of looped polymer brushes made by preferential adsorption of poly(2-vinylpyridine)-polystyrene-poly(2-vinylpyridine) (PVP-b-PS-b-PVP) triblock copolymers of varying molecular weight and asymmetry ratio are measured using the surface forces apparatus. The force profiles are analyzed using an equivalent diblock model, which considers the triblock copolymer brushes as being comprised of two diblock copolymers of half the PS molecular weight. While scaling the dependencies of the interaction energy and distance on molecular weight, the tethering density and segment size coalesce the measured force profiles to the universal profile, it is necessary to include polydispersity in the description of the equilibrium structure. This is done using the self-consistent field model of Milner et al. [Macromolecules, 1988, 21, 2610-2619]. For looped brushes formed from the symmetric and moderately symmetric triblock copolymers we find that the polydispersity due to molecular weight distribution effectively accounts for the observed force profiles. On the other hand, agreement between the measured and predicted force profiles of looped brushes formed from highly asymmetric copolymers at low degrees-of-compression is achieved only if a much smaller value of the polydispersity index is used in the fitting. The implication of these results is that the shape of the segment density profiles is not due to the previously proposed anchor-induced polydispersity arising due to loop formation; however in the case of highly asymmetric copolymers, loop formation may constrain the stretching of the chains relative to what is expected for brushes formed from the equivalent diblock copolymer.

  13. Interaction of Streptavidin-Based Peptide-MHC Oligomers (Tetramers) with Cell-Surface T Cell Receptors

    E-Print Network [OSTI]

    Stone, Jennifer D.

    he binding of oligomeric peptide–MHC (pMHC) complexes to cell surface TCR can be considered to approximate TCR–pMHC interactions at cell-cell interfaces. In this study, we analyzed the equilibrium binding of streptavidin-based ...

  14. Biosphere-atmosphere interactions over semi-arid regions : modeling the role of mineral aerosols and irrigation in the regional climate system

    E-Print Network [OSTI]

    Marcella, Marc Pace

    2013-01-01T23:59:59.000Z

    This dissertation describes the role of land surface processes in shaping semi-arid climates, namely those of Southwest Asia and Northwest Africa. The interactions between dust emissions, irrigation, and climate processes ...

  15. Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: Top-of-atmosphere albedo change by aerosols based on land surface types

    E-Print Network [OSTI]

    Chen, Yang; Li, Qinbin; Kahn, Ralph A; Randerson, James T; Diner, David J

    2009-01-01T23:59:59.000Z

    www.eosweb.larc.nasa.gov). References Abdou, W. A. , D. J.B. J. Gaitley, and W. A. Abdou (2007), The MISR radiometricAOD) retrievals over land [Abdou et al. , 2005], as well as

  16. Surface-supported Ag islands stabilized by a quantum size effect: Their interaction with small molecules relevant to ethylene epoxidation

    SciTech Connect (OSTI)

    Shao, Dahai

    2013-05-15T23:59:59.000Z

    This dissertation focuses on how QSE-stabilized, surface-supported Ag nanoclusters will interact with ethylene or oxygen. Experiments are performed to determine whether the QSE-mediated Ag islands react differently toward adsorption of ethylene or oxygen, or whether the adsorption of these small molecules will affect the QSE-mediated stability of Ag islands. Studies of the interaction of oxygen with Ag/Si(111)-7×7 were previously reported, but these studies were performed at a low Ag coverage where 3D Ag islands were not formed. So the study of such a system at a higher Ag coverage will be a subject of this work. The interaction of ethylene with Ag/Si(111)-7×7, as well as the interaction of oxygen with Ag/NiAl(110) are also important parts of this study.

  17. Surface studies on aluminized and thermally oxidized superalloy 690 substrates interacted with simulated nuclear waste and sodium borosilicate melt

    SciTech Connect (OSTI)

    Yusufali, C., E-mail: yusuf@barc.gov.in; Sengupta, P.; Dutta, R. S.; Dey, G. K. [Materials Science Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085 (India); Kshirsagar, R. J. [High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085 (India); Mishra, R. K.; Kaushik, C. P. [Waste Management Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085 (India)

    2014-04-24T23:59:59.000Z

    Aluminized and thermally oxidized Ni-Cr-Fe based superalloy 690 substrates with Al{sub 2}O{sub 3} layer on top have been exposed in nitrate based environment (simulated high level nuclear liquid waste) at 373 K for 216 hours and sodium borosilicate melt at 1248 K for 192 hours. The surfaces of exposed samples have been characterized by using Electron probe micro-analyzer (EPMA). Elemental X-ray mapping on coated specimen that exposed in simulated nuclear waste solution revealed that the surface is enriched with Ni, Cr and Al. X-ray mapping on surface of the specimen that interacted with sodium borosilicate melt indicated that the surface is composed of Al, Fe, Ni and Cr.

  18. A tribological study of the interaction between surface micro texturing and viscoelastic lubricants

    E-Print Network [OSTI]

    Hupp, Sara J. (Sara Jean), 1979-

    2004-01-01T23:59:59.000Z

    An experimental study is performed on micro textured surfaces using both elastic and Newtonian fluids in order to understand the effect of surface texturing and fluid rheology on sliding friction under lubricated conditions. ...

  19. Interactions between Mica Surfaces in a Polystyrene-Cyclopentane Solution Near the O-Temperature

    E-Print Network [OSTI]

    Klein, Jacob

    'ACOV ALMOG* AND JACOB KLEIN*'t 'l *Polymer Department, Weizmann Institute, Rehovot, lsrael, and t of distance D between the surfaces (4-7). Thus two mica surfaces bearing ad- sorbed polystyrene in cyclohexane approach (6). On the other hand, when the surfaces bear ad- sorbed polyethylene oxide in an aqueous

  20. Multifunctional ultra-high vacuum apparatus for studies of the interactions of chemical warfare agents on complex surfaces

    SciTech Connect (OSTI)

    Wilmsmeyer, Amanda R.; Morris, John R. [Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061 (United States)] [Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061 (United States); Gordon, Wesley O.; Mantooth, Brent A.; Lalain, Teri A. [Research and Technology Directorate, U.S. Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010 (United States)] [Research and Technology Directorate, U.S. Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010 (United States); Davis, Erin Durke [OptiMetrics, Inc., Abingdon, Maryland 21009 (United States)] [OptiMetrics, Inc., Abingdon, Maryland 21009 (United States)

    2014-01-15T23:59:59.000Z

    A fundamental understanding of the surface chemistry of chemical warfare agents is needed to fully predict the interaction of these toxic molecules with militarily relevant materials, catalysts, and environmental surfaces. For example, rules for predicting the surface chemistry of agents can be applied to the creation of next generation decontaminants, reactive coatings, and protective materials for the warfighter. Here, we describe a multifunctional ultra-high vacuum instrument for conducting comprehensive studies of the adsorption, desorption, and surface chemistry of chemical warfare agents on model and militarily relevant surfaces. The system applies reflection-absorption infrared spectroscopy, x-ray photoelectron spectroscopy, and mass spectrometry to study adsorption and surface reactions of chemical warfare agents. Several novel components have been developed to address the unique safety and sample exposure challenges that accompany the research of these toxic, often very low vapor pressure, compounds. While results of vacuum-based surface science techniques may not necessarily translate directly to environmental processes, learning about the fundamental chemistry will begin to inform scientists about the critical aspects that impact real-world applications.

  1. Preparation and in situ Characterization of Surfaces Using Soft...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in situ Characterization of Surfaces Using Soft-Landing in a Fourier Transform Ion Cyclotron Resonance Mass Preparation and in situ Characterization of Surfaces Using Soft-Landing...

  2. The RSV F and G glycoproteins interact to form a complex on the surface of infected cells

    SciTech Connect (OSTI)

    Low, Kit-Wei; Tan, Timothy; Ng, Ken [School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551 (Singapore); Tan, Boon-Huan [Detection and Diagnostics Laboratory, Defence Medical and Environmental Research Institute, DSO National Laboratories, 27 Medical Drive, 13-00, Singapore 117510 (Singapore); Sugrue, Richard J. [School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551 (Singapore)], E-mail: rjsugrue@ntu.edu.sg

    2008-02-08T23:59:59.000Z

    In this study, the interaction between the respiratory syncytial virus (RSV) fusion (F) protein, attachment (G) protein, and small hydrophobic (SH) proteins was examined. Immunoprecipitation analysis suggested that the F and G proteins exist as a protein complex on the surface of RSV-infected cells, and this conclusion was supported by ultracentrifugation analysis that demonstrated co-migration of surface-expressed F and G proteins. Although our analysis provided evidence for an interaction between the G and SH proteins, no evidence was obtained for a single protein complex involving all three of the virus proteins. These data suggest the existence of multiple virus glycoprotein complexes within the RSV envelope. Although the stimulus that drives RSV-mediated membrane fusion is unknown, the association between the G and F proteins suggest an indirect role for the G protein in this process.

  3. Author's personal copy Adsorbate interactions on surface lead to a flattened Sabatier volcano plot

    E-Print Network [OSTI]

    Chen, Sow-Hsin

    intermediates and activation energies. Sensitivity analyses indicate lat- eral repulsions between surface adsorbates (``enthalpic effect'') and site competition (``entropic effect'') flatten the catalytic activity

  4. Plasma Diagnostics and Plasma-Surface Interactions in Inductively Coupled Plasmas

    E-Print Network [OSTI]

    Titus, Monica Joy

    2010-01-01T23:59:59.000Z

    deposition and chamber pressure effects on the ion currentsignificant change in ion current at the chamber wall is nottotal positive ion current to the chamber surfaces 33 ; and

  5. Fluctuating Surface Currents: A New Algorithm for Efficient Prediction of Casimir Interactions among Arbitrary Materials in Arbitrary Geometries. I. Theory

    E-Print Network [OSTI]

    M. T. Homer Reid; Jacob White; Steven G. Johnson

    2012-07-12T23:59:59.000Z

    This paper presents a new method for the efficient numerical computation of Casimir interactions between objects of arbitrary geometries, composed of materials with arbitrary frequency-dependent electrical properties. Our method formulates the Casimir effect as an interaction between effective electric and magnetic current distributions on the surfaces of material bodies, and obtains Casimir energies, forces, and torques from the spectral properties of a matrix that quantifies the interactions of these surface currents. The method can be formulated and understood in two distinct ways: \\textbf{(1)} as a consequence of the familiar \\textit{stress-tensor} approach to Casimir physics, or, alternatively, \\textbf{(2)} as a particular case of the \\textit{path-integral} approach to Casimir physics, and we present both formulations in full detail. In addition to providing an algorithm for computing Casimir interactions in geometries that could not be efficiently handled by any other method, the framework proposed here thus achieves an explicit unification of two seemingly disparate approaches to computational Casimir physics.

  6. Precipitation, Recycling, and Land Memory: An Integrated Analysis

    E-Print Network [OSTI]

    Dirmeyer, Paul A.

    A synthesis of several approaches to quantifying land–atmosphere interactions is presented. These approaches use data from observations or atmospheric reanalyses applied to atmospheric tracer models and stand-alone land ...

  7. Integrated simulation of plasma surface interaction during edge localized modes and disruptions: Self-consistent approach

    E-Print Network [OSTI]

    Harilal, S. S.

    that are transported during ELMs to the divertor surface. ELMs, therefore, can result in excessive divertor erosion, lithium, and neon in multidimensional geometry to inte- grate core, SOL parameters, and divertor surface-like devices during an ELM can then increase from %5 MW/m2 to %300­3000 MW/m2 . The erosion losses of divertor

  8. Land Use and Land Cover Change

    SciTech Connect (OSTI)

    Brown, Daniel; Polsky, Colin; Bolstad, Paul V.; Brody, Samuel D.; Hulse, David; Kroh, Roger; Loveland, Thomas; Thomson, Allison M.

    2014-05-01T23:59:59.000Z

    A contribution to the 3rd National Climate Assessment report, discussing the following key messages: 1. Choices about land-use and land-cover patterns have affected and will continue to affect how vulnerable or resilient human communities and ecosystems are to the effects of climate change. 2. Land-use and land-cover changes affect local, regional, and global climate processes. 3. Individuals, organizations, and governments have the capacity to make land-use decisions to adapt to the effects of climate change. 4. Choices about land use and land management provide a means of reducing atmospheric greenhouse gas levels.

  9. Title of Document: PLASMA-SURFACE INTERACTIONS OF MODEL POLYMERS FOR ADVANCED

    E-Print Network [OSTI]

    Anlage, Steven

    is a critical step in nano-manufacturing. We have studied the interactions of PRs and polymers in fluorocarbon was found. Additionally, fluorocarbon (FC) deposition on the damaged PR affected roughening in two opposing

  10. Evanescent wave and video microscopy methods for directly measuring interactions between surface-immobilized biomolecules 

    E-Print Network [OSTI]

    Everett, William Neil

    2009-05-15T23:59:59.000Z

    Spatial and temporal tracking of passively diffusing functionalized colloids continues to be an improving and auspicious approach to measuring weak specific and non-specific biomolecular interactions. Evidence of this is given by the recent increase...

  11. Evanescent wave and video microscopy methods for directly measuring interactions between surface-immobilized biomolecules

    E-Print Network [OSTI]

    Everett, William Neil

    2009-05-15T23:59:59.000Z

    Spatial and temporal tracking of passively diffusing functionalized colloids continues to be an improving and auspicious approach to measuring weak specific and non-specific biomolecular interactions. Evidence of this is given by the recent increase...

  12. Study of Interfacial Interactions Using Thing Film Surface Modification: Radiation and Oxidation Effects in Materials

    SciTech Connect (OSTI)

    Sridharan, Kumar; Zhang, Jinsuo

    2014-01-09T23:59:59.000Z

    Interfaces play a key role in dictating the long-term stability of materials under the influence of radiation and high temperatures. For example, grain boundaries affect corrosion by way of providing kinetically favorable paths for elemental diffusion, but they can also act as sinks for defects and helium generated during irradiation. Likewise, the retention of high-temperature strength in nanostructured, oxide-dispersion strengthened steels depends strongly on the stoichiometric and physical stability of the (Y, Ti)-oxide particles/matrix interface under radiation and high temperatures. An understanding of these interfacial effects at a fundamental level is important for the development of materials for extreme environments of nuclear reactors. The goal of this project is to develop an understanding stability of interfaces by depositing thin films of materials on substrates followed by ion irradiation of the film-substrate system at elevated temperatures followed by post-irradiation oxidation treatments. Specifically, the research will be performed by depositing thin films of yttrium and titanium (~500 nm) on Fe-12%Cr binary alloy substrate. Y and Ti have been selected as thin-film materials because they form highly stable protective oxides layers. The Fe-12%Cr binary alloy has been selected because it is representative of ferritic steels that are widely used in nuclear systems. The absence of other alloying elements in this binary alloy would allow for a clearer examination of structures and compositions that evolve during high-temperature irradiations and oxidation treatments. The research is divided into four specific tasks: (1) sputter deposition of 500 nm thick films of Y and Ti on Fe-12%Cr alloy substrates, (2) ion irradiation of the film-substrate system with 2MeV protons to a dose of 2 dpa at temperatures of 300°C, 500°C, and 700°C, (3) oxidation of as-deposited and ion-irradiated samples in a controlled oxygen environment at 500°C and 700°C, (4) multi-scale computational modeling involving first- principle molecular dynamics (FPMD) and coarse-grained dissipative particle dynamics (DPD) approaches to develop theories underlying the evolution and stability of structures and phases. Samples from Tasks 1 to 3 (above) will be rigorously characterized and analyzed using scanning electron microscopy, Auger electron microscopy, x-ray diffraction, Rutherford back scatter spectroscopy, and transmission electron microscopy. Expected outcomes of the experimental work include a quantitative understanding film-substrate interface mixing, evolution of defects and other phases at the interface, interaction of interfaces with defects, and the ability of the Y and Ti films to mitigate irradiation-assisted oxidation.The aforementioned experimental work will be closely coupled with multi-scale molecular dynamics (MD) modeling to understand the reactions at the surface, the transport of oxidant through the thin film, and the stabilities of the deposited thin films under radiation and oxidation. Simulations of materials property changes under conditions of radiation and oxidation require multiple size domains and a different simulation scheme for each of these domains. This will be achieved by coupling the FPMD and coarse-grained kinetic Monte Carlo (KMC). This will enable the comparison of the results of each simulation approach with the experimental results.

  13. First-principles study on the interaction of nitrogen atom with ?–uranium: From surface adsorption to bulk diffusion

    SciTech Connect (OSTI)

    Su, Qiulei; Deng, Huiqiu, E-mail: hqdeng@hnu.edu.cn, E-mail: hqdeng@gmail.com; Xiao, Shifang; Li, Xiaofan; Hu, Wangyu [Department of Applied Physics, Hunan University, Changsha 410082 (China); Ao, Bingyun; Chen, Piheng [Science and Technology on Surface Physics and Chemistry Laboratory, P.O. Box 718-35, Mianyang 621907 (China)

    2014-04-28T23:59:59.000Z

    Experimental studies of nitriding on uranium surfaces show that the modified layers provide considerable protection against air corrosion. The bimodal distribution of nitrogen is affected by both its implantation and diffusion, and the diffusion of nitrogen during implantation is also governed by vacancy trapping. In the present paper, nitrogen adsorption, absorption, diffusion, and vacancy trapping on the surface of and in the bulk of ?–uranium are studied with a first-principles density functional theory approach and the climbing image nudged elastic band method. The calculated results indicate that, regardless of the nitrogen coverage, a nitrogen atom prefers to reside at the hollow1 site and octahedral (Oct) site on and below the surface, respectively. The lowest energy barriers for on-surface and penetration diffusion occur at a coverage of 1/2 monolayer. A nitrogen atom prefers to occupy the Oct site in bulk ?–uranium. High energy barriers are observed during the diffusion between neighboring Oct sites. A vacancy can capture its nearby interstitial nitrogen atom with a low energy barrier, providing a significant attractive nitrogen-vacancy interaction at the trapping center site. This study provides a reference for understanding the nitriding process on uranium surfaces.

  14. Z .Applied Surface Science 109r110 1997 110 Lasersolid interaction in the femtosecond time regime

    E-Print Network [OSTI]

    von der Linde, D.

    D. von der Linde ) , K. Sokolowski-Tinten, J. Bialkowski Institut fur Laser und Plasmaphysik, Uni-3 #12;( )D. Õon der Linde et al.rApplied Surface Science 109r110 1997 1­102 Fig. 1. Primary electronic

  15. Electrostatic interactions in the presence of surface charge regulation: exact results

    E-Print Network [OSTI]

    A. C. Maggs; R. Podgornik

    2014-10-01T23:59:59.000Z

    We study the problem of charge regulation and its effects on electrostatic interactions between dissociable charge groups immersed in a univalent electrolyte, within a family of one dimensional exactly solvable models. We consider the case of both charge regulated plates, but also the interaction of pairs of finite size dielectric "particles". Using the transfer matrix formalism we are able to determine the disjoining pressure as well as the correlations between the charge and the dipole moments of the objects as a function of their separation and electrolyte concentration

  16. Manipulating surface diffusion and elastic interactions to obtain quantum dot multilayer arrangements over different length scales

    SciTech Connect (OSTI)

    Placidi, E., E-mail: ernesto.placidi@ism.cnr.it; Arciprete, F. [Istituto di Struttura della Materia, CNR, Via del Fosso del Cavaliere 100, 00133 Rome (Italy); Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Latini, V.; Latini, S.; Patella, F. [Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Magri, R. [Dipartimento di Scienze Fisiche, Informatiche e Matematiche (FIM), Università di Modena e Reggio Emilia, and Centro S3 CNR-Istituto Nanoscienze, Via Campi 213/A, 4100 Modena (Italy); Scuderi, M.; Nicotra, G. [CNR-IMM, Strada VIII, 5, 95121 Catania (Italy)

    2014-09-15T23:59:59.000Z

    An innovative multilayer growth of InAs quantum dots on GaAs(100) is demonstrated to lead to self-aggregation of correlated quantum dot chains over mesoscopic distances. The fundamental idea is that at critical growth conditions is possible to drive the dot nucleation only at precise locations corresponding to the local minima of the Indium chemical potential. Differently from the known dot multilayers, where nucleation of new dots on top of the buried ones is driven by the surface strain originating from the dots below, here the spatial correlations and nucleation of additional dots are mostly dictated by a self-engineering of the surface occurring during the growth, close to the critical conditions for dot formation under the fixed oblique direction of the incoming As flux, that drives the In surface diffusion.

  17. Interactions Ar and metastable with Si''100... surface velocities near the image acceleration limit

    E-Print Network [OSTI]

    Muiño, Ricardo Díez

    # a theoretical approach #13# shed new light interaction scenario. It seems that energetic positions target data acquisition could maintained yielding unprecedented statistical quality of Auger spectra. #S1050 and interpretations has been published this crucial issue According to classical overbarrier model #1

  18. Les processus de surface `a l'echelle globale et leurs interactions avec

    E-Print Network [OSTI]

    Madeleine, Jean-Baptiste

    Mer Océan Atmosphère océanique Biogeochmie La construction d'un mod`ele du syst`eme terre passe par le biomass NPP #12;2.1. Les interactions syst`eme racinaire et humidit´e du sol

  19. Improving parameter estimation and water table depth simulation in a land surface model using GRACE water storage and estimated base flow data

    E-Print Network [OSTI]

    Lo, Min-Hui; Famiglietti, James S; Yeh, P. J.-F.; Syed, T. H

    2010-01-01T23:59:59.000Z

    2007), Estimating ground water storage changes in thestorage (i.e. , all of the snow, ice, surface water, soil moisture, and ground-

  20. Effects of Land Surface Characteristics on Pedogenesis, Biological Soil Crust Community Diversity, and Ecosystem Functions in a Mojave Desert Piedmont Landscape

    E-Print Network [OSTI]

    Pietrasiak, Nicole

    2012-01-01T23:59:59.000Z

    2000. Desert pavement characteristics on wadi-terrace andalluvial fan surfaces: Wadi Al-Bih, U.A.E. and Oman.

  1. Surface interactions between two like-charged polyelectrolyte gels Xiao Wang ( 1

    E-Print Network [OSTI]

    Hong, Wei

    a liquid layer in the gap and prevents dry friction. This cor- relation is strongly supported by the direct of the low-friction phenomena on the surface of a polyelectrolyte gel. DOI: 10.1103/PhysRevE.81.041803 PACS in an ionic solution. The repul- sion between double layers may be the origin of the low friction between gels

  2. Interaction of acetonitrile with the surfaces of amorphous and crystalline ice

    SciTech Connect (OSTI)

    Schaff, J.E.; Roberts, J.T.

    1999-10-12T23:59:59.000Z

    The adsorption of acetonitrile (CH{sub 3}CN) on ultrathin films of ice under ultrahigh vacuum was investigated with temperature-programmed desorption ass spectrometry (TPD) and Fourier transform infrared reflection absorption spectroscopy (FTIRAS). Two types of film were studied, amorphous and crystalline. On the amorphous films, two sates of adsorbed acetonitrile were observed by TPD and FTIRAS. One of the states is attributed to acetonitrile that is hydrogen bonded to agree OH group at the ice surface; the other state is assigned to acetonitrile that is purely physiorbed. Evidence for the hydrogen-bonded state is two-fold. First, there is a large kinetic isotope effect for desorption from H{sub 2}O-and D{sub 2}O-ice: the desorption temperatures from ice-h{sub 2} and ice-d{sub 2} are {approximately}161 and {approximately}176 K, respectively. Second, the C{triple{underscore}bond}N stretching frequency (2,265 cm{sup {minus}1}) is 16 cm{sup {minus}1} is greater than that of physisorbed acetonitrile, and it is roughly equal to that of acetonitrile which is hydrogen bonded to an OH group at the air-liquid water interface. On the crystalline films, there is no evidence for a hydrogen-bonded state in the TPD spectra. The FTIRAS spectra do show that some hydrogen-bonded acetonitrile is present but at a maximum coverage that is roughly one-sixth of that on the amorphous surface. The difference between the amorphous and crystalline surfaces cannot be attributed to a difference n surface areas. Rather, this work provides additional evidence that the surface chemical properties of amorphous ice are different from those of crystalline ice.

  3. Direct measurements of the energy flux due to chemical reactions at the surface of a silicon sample interacting with a SF6 plasma

    E-Print Network [OSTI]

    Boyer, Edmond

    sample interacting with a SF6 plasma R. Dussarta) , A. L. Thomann, L. E. Pichon, L. Bedra, N. Semmar, P, France Abstract Energy exchanges due to chemical reactions between a silicon surface and a SF6 plasma by quenching with electrons15 . In this letter, we present results obtained when a plasma of SF6 interacts

  4. Liquid Lithium Limiter Effects on Tokamak Plasmas and Plasma-Liquid Surface Interactions

    SciTech Connect (OSTI)

    R. Kaita; R. Majeski; R. Doerner; G. Antar; M. Baldwin; R. Conn; P. Efthimion; M. Finkenthal; D. Hoffman; B. Jones; S. Krashenninikov; H. Kugel; S. Luckhardt; R. Maingi; J. Menard; T. Munsat; D. Stutman; G. Taylor; J. Timberlake; V. Soukhanovskii; D. Whyte; R. Woolley; L. Zakharov

    2002-10-15T23:59:59.000Z

    We present results from the first experiments with a large area liquid lithium limiter in a magnetic fusion device, and its effect on improving plasma performance by reducing particle recycling. Using large area liquid metal surfaces in any major fusion device is unlikely before a test on a smaller scale. This has motivated its demonstration in the CDX-U spherical torus with a unique, fully toroidal lithium limiter. The highest current discharges were obtained with a liquid lithium limiter. There was a reduction in recycling, as indicated by a significant decrease in the deuterium-alpha emission and oxygen radiation. How these results might extrapolate to reactors is suggested in recycling/retention experiments with liquid lithium surfaces under high-flux deuterium and helium plasma bombardment in PISCES-B. Data on deuterium atoms retained in liquid lithium indicate retention of all incident ions until full volumetric conversion to lithium deuteride. The PISCES-B results also show a material loss mechanism that lowers the maximum operating temperature compared to that for the liquid surface equilibrium vapor pressure. This may restrict the lithium temperature in reactors.

  5. Addressing the challenges of plasma-surface interactions in NSTX-U*

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kaita, Robert; Abrams, Tyler; Jaworski, Michael; Lucia, Matthew; Nichols, Jacob H.; Skinner, Charles H.; Stotler, Daren; Allain, Jean Paul; Bedoya, Felipe

    2015-04-01T23:59:59.000Z

    The importance of conditioning plasma-facing components (PFCs) has long been recognized as a critical element in obtaining high-performance plasmas in magnetic confinement devices. Lithium coatings, for example, have been used for decades for conditioning PFCs. Since the initial studies on the Tokamak Fusion Test Reactor, experiments on devices with different aspect ratios and magnetic geometries like the National Spherical Torus Experiment (NSTX) continue to show the relationship between lithium PFCs and good confinement and stability. While such results are promising, their empirical nature do not reflect the detailed relationship between PFCs and the dynamic conditions that occur in the tokamakmore »environment. A first step developing an understanding such complexity will be taken in the upgrade to NSTX (NSTX-U) that is nearing completion. New measurement capabilities include the Materials Analysis and Particle Probe (MAPP) for in situ surface analysis of samples exposed to tokamak plasmas. The OEDGE suite of codes, for example, will provide a new way to model the underlying mechanisms for such material migration in NSTX-U. This will lead to a better understanding of how plasma-facing surfaces evolve during a shot, and how the composition of the plasma facing surface influences the discharge performance we observe. This paper will provide an overview of these capabilities, and highlight their importance for NSTX-U plans to transition from carbon to high-Z PFCs.« less

  6. Addressing the challenges of plasma-surface interactions in NSTX-U*

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kaita, Robert [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Abrams, Tyler [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Jaworski, Michael [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Lucia, Matthew [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Nichols, Jacob H. [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Skinner, Charles H. [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Stotler, Daren [Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Allain, Jean Paul [University of Illinois, Urbana, IL (United States); Bedoya, Felipe [University of Illinois, Urbana, IL (United States)

    2015-04-01T23:59:59.000Z

    The importance of conditioning plasma-facing components (PFCs) has long been recognized as a critical element in obtaining high-performance plasmas in magnetic confinement devices. Lithium coatings, for example, have been used for decades for conditioning PFCs. Since the initial studies on the Tokamak Fusion Test Reactor, experiments on devices with different aspect ratios and magnetic geometries like the National Spherical Torus Experiment (NSTX) continue to show the relationship between lithium PFCs and good confinement and stability. While such results are promising, their empirical nature do not reflect the detailed relationship between PFCs and the dynamic conditions that occur in the tokamak environment. A first step developing an understanding such complexity will be taken in the upgrade to NSTX (NSTX-U) that is nearing completion. New measurement capabilities include the Materials Analysis and Particle Probe (MAPP) for in situ surface analysis of samples exposed to tokamak plasmas. The OEDGE suite of codes, for example, will provide a new way to model the underlying mechanisms for such material migration in NSTX-U. This will lead to a better understanding of how plasma-facing surfaces evolve during a shot, and how the composition of the plasma facing surface influences the discharge performance we observe. This paper will provide an overview of these capabilities, and highlight their importance for NSTX-U plans to transition from carbon to high-Z PFCs.

  7. Editorial, Workshop on New Directions for Advanced Computer Simulations and Experiments in Fusion-Related Plasma-Surface Interactions

    SciTech Connect (OSTI)

    Hogan, John T [ORNL; Krstic, Predrag S [ORNL; Meyer, Fred W [ORNL

    2006-01-01T23:59:59.000Z

    Because plasma-boundary physics encompasses some of the most important unresolved issues for both the International Thermonuclear Experimental Reactor (ITER) project and future fusion power reactors, there is a strong interest in the fusion community for better understanding and characterization of plasma-wall interactions. Chemical and physical sputtering cause the erosion of the limiters/divertor plates and vacuum vessel walls (made of C, Be and W, for example) and degrade fusion performance by diluting the fusion fuel and excessively cooling the core, while carbon redeposition could produce long-term in-vessel tritium retention, degrading the superior thermo-mechanical properties of the carbon materials. Mixed plasma-facing materials are proposed, requiring optimization for different power and particle flux characteristics. Knowledge of material properties as well as characteristics of the plasma-material interaction are prerequisites for such optimizations. Computational power will soon reach hundreds of teraflops, so that theoretical and plasma science expertise can be matched with new experimental capabilities in order to mount a strong response to these challenges. To begin to address such questions, a Workshop on New Directions for Advanced Computer Simulations and Experiments in Fusion-Related Plasma-Surface Interactions for Fusion (PSIF) was held at the Oak Ridge National Laboratory from 21 to 23 March, 2005. The purpose of the workshop was to bring together researchers in fusion related plasma-wall interactions in order to address these topics and to identify the most needed and promising directions for study, to exchange opinions on the present depth of knowledge of surface properties for the main fusion-related materials, e.g., C, Be and W, especially for sputtering, reflection, and deuterium (tritium) retention properties. The goal was to suggest the most important next steps needed for such basic computational and experimental work to be facilitated by researchers in fusion, material, and physical sciences. Representatives from many fusion research laboratories attended, and 25 talks were given, the majority of them making up the content of these Workshop proceedings. The presentations of all talks and further information on the Workshop are available at http://www-cfadc.phy.ornl.gov/psif/home.html. The workshop talks dealt with identification of needs from the perspective of integrated fusion simulation and ITER design, recent developments and perspectives on computation of plasma-facing surface properties using the current and expected new generation of computation capability, and with the status of dedicated laboratory experiments which characterize the underlying processes of PSIF. The Workshop summary and conclusions are being published in Nuclear Fusion 45 (2005).

  8. Primitive Land Plants 37 PRIMITIVE LAND PLANTS

    E-Print Network [OSTI]

    Koptur, Suzanne

    Primitive Land Plants 37 PRIMITIVE LAND PLANTS These are the plants that were present soon after land was colonized, over 400 mil- lion years ago. A few plants living today are closely related to those ancient plants, and we often call them "living fossils". Two major lineages of plants evolved

  9. all weather landing systems: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    likely that unambiguous habitable zone terrestrial planets of unknown water content will soon be discovered. Water content helps determine surface land fraction, which influences...

  10. Technical Note/ Impact of Coastal Land Reclamation on

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Technical Note/ Impact of Coastal Land Reclamation on Ground Water Level and the Sea Water Interface by Haipeng Guo1 and Jiu Jimmy Jiao2 Abstract Land reclamation in coastal areas may have water (Fetter 1972; Jiao and Tang 1999), but such an interaction may be modified by land reclamation

  11. Interaction Interaction

    E-Print Network [OSTI]

    Hehner, Eric C.R.

    Interaction 1/54 #12;Interaction shared variables 2/54 #12;Interaction shared variables can be read and written by any process (most interaction) 3/54 #12;Interaction shared variables can be read and written by any process (most interaction) difficult to implement 4/54 #12;Interaction shared variables can

  12. Mechanisms of Radionuclide-Hyroxycarboxylic Acid Interactions for Decontamination of Metallic Surfaces

    SciTech Connect (OSTI)

    A.J. Francis; C.J. Dodge; J.B. Gillow; G.P. Halada; C.R. Clayton

    2002-04-24T23:59:59.000Z

    Is this EMSP program we investigated the key fundamental issues involved in the use of simple and safe methods for the removal of radioactive contamination from equipment and facilities using hydroxycarboxylic acids. Specifically, we investigate (i) the association of uranium with various iron oxides commonly formed on corroding plain carbon steel surfaces, (ii) the association of uranium with corroding metal coupons under a variety of conditions, and (iii) the decontamination of the uranium contaminated metal coupons by citric acid or citric acid formulations containing oxalic acid and hydrogen peroxide.

  13. Spherical Torus Plasma Interactions with Large-area Liquid Lithium Surfaces in CDX-U

    SciTech Connect (OSTI)

    R. Kaita; R. Majeski; M. Boaz; P. Efthimion; B. Jones; D. Hoffman; H. Kugel; J. Menard; T. Munsat; A. Post-Zwicker; V. Soukhanovskii; J. Spaleta; G. Taylor; J. Timberlake; R. Woolley; L. Zakharov; M. Finkenthal; D. Stutman; G. Antar; R. Doerner; S. Luckhardt; R. Maingi; M. Maiorano; S. Smith

    2002-01-18T23:59:59.000Z

    The Current Drive Experiment-Upgrade (CDX-U) device at the Princeton Plasma Physics Laboratory (PPPL) is a spherical torus (ST) dedicated to the exploration of liquid lithium as a potential solution to reactor first-wall problems such as heat load and erosion, neutron damage and activation, and tritium inventory and breeding. Initial lithium limiter experiments were conducted with a toroidally-local liquid lithium rail limiter (L3) from the University of California at San Diego. Spectroscopic measurements showed a clear reduction of impurities in plasmas with the L3, compared to discharges with a boron carbide limiter. The evidence for a reduction in recycling was less apparent, however. This may be attributable to the relatively small area in contact with the plasma, and the presence of high-recycling surfaces elsewhere in the vacuum chamber. This conclusion was tested in subsequent experiments with a fully toroidal lithium limiter that was installed above the floor of the vacuum vessel. The new limiter covered over ten times the area of the L3 facing the plasma. Experiments with the toroidal lithium limiter have recently begun. This paper describes the conditioning required to prepare the lithium surface for plasma operations, and effect of the toroidal liquid lithium limiter on discharge performance.

  14. MODIS Collection 5 global land cover: Algorithm refinements and characterization of new datasets

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    information is required to parameterize land surface processes in regional-to-global scale Earth system models

  15. Interaction of Flexural Phonons with Electrons in Graphene: A Generalized Dirac Equation in Corrugated Surfaces

    E-Print Network [OSTI]

    Richard Kerner; Gerardo Naumis

    2011-02-10T23:59:59.000Z

    A generalized Dirac equation is derived in order to describe charge carriers moving in corrugated graphene, which is the case for temperatures above 10{\\deg}K due to the presence of flexural phonons. Such interaction is taken into account by considering an induced metric, in the same spirit as the general relativity approach for the description of fermionic particle moving in a curved space-time. The resulting equation allows to include in a natural way the presence of other phonon branches as well as an external electromagnetic field. It also predicts non-linear effects which are not present in the usual vector potential approximation used in most of publications on the subject, as well as the possibility of controlling electronic conductivity using pure sinusoidal strain fields. The non-linear terms are important at high temperatures, and can also lead to interesting effects, like e.g. resonances between flexural phonons and external electromagnetic fields.

  16. Bacteria-Mineral Interactions on the Surfaces of Metal-Resistant Bacteria

    SciTech Connect (OSTI)

    Malkin, A J

    2010-03-24T23:59:59.000Z

    The extraordinary ability of indigenous microorganisms, like metal-resistant bacteria, for biotransformation of toxic compounds is of considerable interest for the emerging area of environmental bioremediation. However, the underlying mechanisms by which metal-resistant bacteria transform toxic compounds are currently unknown and await elucidation. The project's objective was to study stress-induced responses of metal-resistant bacteria to environmental changes and chemical stimulants. This project involved a multi-institutional collaboration of our LLNL group with the group of Dr. H.-Y. Holman (Lawrence Berkeley National Laboratory). In this project, we have utilized metal-resistant bacteria Arthrobacter oxydans as a model bacterial system. We have utilized atomic force microscopy (AFM) to visualize for the first time at the nanometer scale formation of stress-induced structures on bacterial surfaces in response to Cr (VI) exposure. We have demonstrated that structure, assembly, and composition of these stress-induced structures are dependent on Cr (VI) concentrations. Our AFM observations of the appearance and development of stress-induced layers on the surfaces of Arthrobacter oxydans bacteria exposed to Cr (VI) were confirmed by Dr. Holman's biochemical, electron microscopy, and synchrotron infrared spectromicroscopy studies. In general, in vitro imaging of live microbial and cellular systems represents one of the most challenging issues in application of AFM. Various approaches for immobilization of bacteria on the substrate for in vitro imaging were tested in this project. Imaging of live bacteria was achieved, however further optimization of experimental methods are needed for high-resolution visualization of the cellular environmental structural dynamics by AFM. This project enhanced the current insight into molecular architecture, structural and environmental variability of bacterial systems. The project partially funded research for two book chapters (1,2), and we anticipate one more publication (3). The publications describe development of methods and results of studies of structural dynamics of metal-resistant bacteria that contribute to more comprehensive understanding of the architecture, function, and environmental dynamics of bacterial and cellular systems. The results of this LDRD were presented in invited talks and contributed presentations at five national and international conferences and five seminar presentations at the external institutions. These included invited talks at the conferences of Gordon Research, Materials Research and American Chemical Societies. Our scientific results and methodologies developed in this project enabled us to receive new funding for the multiyear project 'Chromium transformation pathways in metal-reducing bacteria' funded by the University of California Lab Fees Program ($500,000, 5/1/09 - 4/30/2012), with our proposal being ranked 1st from a total of 138 in the Earth, Energy, Environmental & Space Sciences panel.

  17. Combustion-turbulence interaction in the turbulent boundary layer over a hot surface

    SciTech Connect (OSTI)

    Ng, T.T.; Cheng, R.K.; Robben, F.; Talbot, L.

    1982-01-01T23:59:59.000Z

    The turbulence-combustion interaction in a reacting turbulent boundary layer over a heated flat plate was studied. Ethylene/air mixture with equivalence ratio of 0.35 was used. The free stream velocity was 10.5 m/s and the wall temperature was 1250/sup 0/K. Combustion structures visualization was provided by high-speed schlieren photographs. Fluid density statistics were deduced from Rayleigh scattering intensity measurements. A single-component laser Doppler velocimetry system was used to obtain mean and root-mean-square velocity distributions, the Reynolds stress, the streamwise and the cross-stream turbulent kinetic energy diffusion, and the production of turbulent kinetic energy by Reynolds stress. The combustion process was dominated by large-scale turbulent structures of the boundary layer. Combustion causes expansion of the boundary layer. No overall self-similarity is observed in either the velocity or the density profiles. Velocity fluctuations were increased in part of the boundary layer and the Reynolds stress was reduced. The turbulent kinetic energy diffusion pattern was changed significantly and a modification of the boundary layer assumption will be needed when dealing with this problem analytically. 11 figures, 1 table.

  18. Effects of urban land cover modifications in a mesoscale meteorological model on surface temperature and heat fluxes in the Phoenix metropolitan area.

    E-Print Network [OSTI]

    Hall, Sharon J.

    in the modeling domain was calculated as part of the energy balance equation according to: E = a C CuM[qs(Tg) -qs MM5. The single urban category in the existing 25-category United States Geological Survey (USGS surface energy fluxes and ground temperature. Planetary boundary layer processes were included via the MRF

  19. School Land Board (Texas)

    Broader source: Energy.gov [DOE]

    The School Land Board oversees the use of land owned by the state or held in trust for use and benefit by the state or one of its departments, boards, or agencies. The Board is responsible for...

  20. Chesapeake Forest Lands (Maryland)

    Broader source: Energy.gov [DOE]

    The Chesapeake Forest Lands are most of the former land holdings of the Chesapeake Forest Products Company, which now includes more than 66,000 acres in five lower Eastern Shore counties. These...

  1. Survey of Critical Wetlands Bureau of Land Management Lands

    E-Print Network [OSTI]

    Survey of Critical Wetlands Bureau of Land Management Lands South Park, Park County, Colorado 2003 Delivery Colorado State University #12;Survey of Critical Wetlands Bureau of Land Management Lands South

  2. Proceedings of US/Japan workshop, Q219 on high heat flux components and plasma surface interactions for next fusion devices

    SciTech Connect (OSTI)

    Ulrickson, M.A.; Stevens, P.L.; Hino, T.; Hirohata, Y. [eds.] [eds.

    1996-12-01T23:59:59.000Z

    This report contains the viewgraphs from the proceedings of US/Japan Workshop on High Heat Flux Components and Plasma Surface Interactions for Next Fusion Devices. Some of the general topics covered by this report are: PFC/PSI in tokamak and helical devices; development of high heat flux components; PSIS and plasma facing materials;tritium; and material damage.

  3. Ab Initio Study of the Interaction of Water with Cluster Models of the Aluminum Terminated (0001) r-Aluminum Oxide Surface

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    Ab Initio Study of the Interaction of Water with Cluster Models of the Aluminum Terminated (0001) r-Aluminum to hydroxylation of the aluminum terminated surface, the two water process was found to be the most exothermic, occurring within 10-2 s. I. Introduction As one of the most important ceramic materials, R-aluminum oxide

  4. Terahertz free electron superradiation from mimicking surface plasmons-two electron beams interaction within a 3-mirror quasi-optical cavity

    SciTech Connect (OSTI)

    Zhang, Ya-Xin; Zhou, Y.; Dong, L.; Liu, Sheng-Gang [Terahertz Science and Technology Research Center, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)] [Terahertz Science and Technology Research Center, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)

    2013-05-27T23:59:59.000Z

    Interaction between mimicking surface plasmons and electron beams provides a good opportunity to develop terahertz (THz) radiation sources. In this paper, such an interaction in a special 3-mirror quasi-optical cavity is presented and explored. The 3-mirror quasi-optical cavity acts as a resonant tunable system, the resonance frequency of which can be tuned by adjusting the distance between mirrors. The study demonstrated THz free electron superradiation from the interaction of mimicking surface plasmons and two electron beams that formed a resonance within the structure, with the 3-mirror cavity enhancing the intensity of superradiation. Moreover, this system can work in the high-harmonic superradiation region with relatively high efficiency and low current density. This concept thus shows the application potential for electron-beam-driven terahertz sources.

  5. Proceedings of 1999 U.S./Japan Workshop (99FT-05) On High Heat Flux Components and Plasma Surface Interactions for Next Fusion Devices

    SciTech Connect (OSTI)

    NYGREN,RICHARD E.; STAVROS,DIANA T.

    2000-06-01T23:59:59.000Z

    The 1999 US-Japan Workshop on High Heat Flux Components and Plasma Surface Interactions in Next Step Fusion Devices was held at the St. Francis Hotel in Santa Fe, New Mexico, on November 1-4, 1999. There were 42 presentations as well as discussion on technical issues and planning for future collaborations. The participants included 22 researchers from Japan and the United States as well as seven researchers from Europe and Russia. There have been important changes in the programs in both the US and Japan in the areas of plasma surface interactions and plasma facing components. The US has moved away from a strong focus on the ITER Project and has introduced new programs on use of liquid surfaces for plasma facing components, and operation of NSTX has begun. In Japan, the Large Helical Device began operation. This is the first large world-class confinement device operating in a magnetic configuration different than a tokamak. In selecting the presentations for this workshop, the organizers sought a balance between research in laboratory facilities or confinement devices related to plasma surface interactions and experimental research in the development of plasma facing components. In discussions about the workshop itself, the participants affirmed their preference for a setting where ''work-in-progress'' could be informally presented and discussed.

  6. Interfacial interaction of in situ Cu growth on tetrasulfide self-assembled monolayer on plasma treated parylene surface

    E-Print Network [OSTI]

    Wang, Gwo-Ching

    treated parylene surface S. Pimanpang,a Pei-I Wang, Jasbir S. Juneja, G.-C. Wang, and T.-M. Lu Center forms a self-assembled monolayer SAM only on a parylene surface treated with either He plasma or N2 groups on the plasma treated parylene surface facilitate the formation of tetrasulfide SAM

  7. Shape evolution and shape coexistence in Pt isotopes: comparing interacting boson model configuration mixing and Gogny mean-field energy surfaces

    E-Print Network [OSTI]

    J. E. Garcia-Ramos; K. Heyde; L. M. Robledo; R. Rodriguez-Guzman

    2014-02-26T23:59:59.000Z

    The evolution of the total energy surface and the nuclear shape in the isotopic chain $^{172-194}$Pt are studied in the framework of the interacting boson model, including configuration mixing. The results are compared with a self-consistent Hartree-Fock-Bogoliubov calculation using the Gogny-D1S interaction and a good agreement between both approaches shows up. The evolution of the deformation parameters points towards the presence of two different coexisting configurations in the region 176 $\\leq$ A $\\leq$ 186.

  8. Hierarchical Marginal Land Assessment for Land Use Planning

    SciTech Connect (OSTI)

    Kang, Shujiang [ORNL; Post, Wilfred M [ORNL; Wang, Dali [ORNL; Nichols, Dr Jeff A [ORNL; Bandaru, Vara Prasad [ORNL

    2013-01-01T23:59:59.000Z

    Marginal land provides an alternative potential for food and bioenergy production in the face of limited land resources; however, effective assessment of marginal lands is not well addressed. Concerns over environmental risks, ecosystem services and sustainability for marginal land have been widely raised. The objective of this study was to develop a hierarchical marginal land assessment framework for land use planning and management. We first identified major land functions linking production, environment, ecosystem services and economics, and then classified land resources into four categories of marginal land using suitability and limitations associated with major management goals, including physically marginal land, biologically marginal land, environmental-ecological marginal land, and economically marginal land. We tested this assessment framework in south-western Michigan, USA. Our results indicated that this marginal land assessment framework can be potentially feasible on land use planning for food and bioenergy production, and balancing multiple goals of land use management. We also compared our results with marginal land assessment from the Conservation Reserve Program (CRP) and land capability classes (LCC) that are used in the US. The hierarchical assessment framework has advantages of quantitatively reflecting land functions and multiple concerns. This provides a foundation upon which focused studies can be identified in order to improve the assessment framework by quantifying high-resolution land functions associated with environment and ecosystem services as well as their criteria are needed to improve the assessment framework.

  9. CARBON SEQUESTRATION ON SURFACE MINE LANDS

    SciTech Connect (OSTI)

    Donald H. Graves; Christopher Barton; Richard Sweigard; Richard Warner

    2004-11-30T23:59:59.000Z

    A monitoring program to measure treatment effects on above ground, and below ground carbon and nitrogen pools for the planting areas is being conducted. The collection of soil and tissue samples from both the 2003 and 2004 plantings is complete and are currently being processed in the laboratory. Detailed studies have been initiated to address specific questions pertaining to carbon cycling. Examinations of decomposition and heterotropic respiration on carbon cycling in the reforestation plots were continued during this reporting period. A whole-tree harvesting method was employed to evaluate carbon accumulation as a function of time on the mined site. The trees were extracted from the sites and separated into the following components: foliage, stems, branches, and roots.

  10. Carbon Sequestration on Surface Mine Lands

    SciTech Connect (OSTI)

    Donald H. Graves; Christopher Barton; Richard Sweigard; Richard Warner

    2005-12-07T23:59:59.000Z

    A major effort this quarter was to inventory all the planted areas to evaluate the diameter and height growth as well as determine survival rates. Soil bulk density and compaction continue to be evaluated on all the areas to determine the effects on tree growth and survival. The hydrologic quantity and quality are continuously monitored and quantified. Much effort was also expended in preparing technical presentations for professional meeting and field trips for a variety of audiences.

  11. CARBON SEQUESTRATION ON SURFACE MINE LANDS

    SciTech Connect (OSTI)

    Donald H. Graves; Christopher Barton; Richard Sweigard; Richard Warner

    2005-02-25T23:59:59.000Z

    The October-December Quarter was dedicated to analyzing the first two years tree planting activities and evaluation of the results. This included the analyses of the species success at each of the sites and quantifying the data for future year determination of research levels. Additional detailed studies have been planned to further quantify total carbon storage accumulation on the research areas. At least 124 acres of new plantings will be established in 2005 to bring the total to 500 acres or more in the study area across the state of Kentucky. During the first 2 years of activities, 172,000 tree seedlings were planted on 257 acres in eastern Kentucky and 77,520 seedlings were planted on 119 acres in western Kentucky. The quantities of each species was discussed in the first Annual Report. A monitoring program was implemented to measure treatment effects on above and below ground C and nitrogen (N) pools and fluxes. A sampling strategy was devised that will allow for statistical comparisons of the various species within planting conditions and sites. Seedling heights and diameters are measured for initial status and re-measured on an annual basis. Leaves were harvested and leaf area measurements were performed. They were then dried and weighed and analyzed for C and N. Whole trees were removed to determine biomass levels and to evaluate C and N levels in all components of the trees. Clip plots were taken to determine herbaceous production and litter was collected in baskets and gathered each month to quantify C & N levels. Soil samples were collected to determine the chemical and mineralogical characterization of each area. The physical attributes of the soils are also being determined to provide information on the relative level of compaction. Hydrology and water quality monitoring is being conducted on all areas. Weather data is also being recorded that measures precipitation values, temperature, relative humidity wind speed and direction and solar radiation. Detailed studies to address specific questions pertaining to carbon flux are continuing.

  12. Lakes & Reservoirs: Research and Management 2002 7: 189199 Modelling the impact of historical land uses on

    E-Print Network [OSTI]

    uses on surface-water quality using groundwater flow and solute-transport models Karen G. Wayland,1-use effects on surface-water quality. Key words groundwater lag time, groundwater modelling, land use, water quality, watersheds. INTRODUCTION The biogeochemistry of surface water and groundwater are related to land

  13. Potential influence of climate-induced vegetation shifts on future land use and associated land carbon fluxes in Northern Eurasia

    E-Print Network [OSTI]

    Kicklighter, D W

    Climate change will alter ecosystem metabolism and may lead to a redistribution of vegetation and changes in fire regimes in Northern Eurasia over the 21st century. Land management decisions will interact with these ...

  14. Characterizing the Groundwater-Surface Water Interactions in Different Subsurface Geologic Environments Using Geochemical and Isotopic Analyses

    E-Print Network [OSTI]

    Long, Molly

    2014-12-31T23:59:59.000Z

    Shallow aquifers located near streams can be affected by groundwater contamination as a result of recharge from surface water; however, stream stage variation, subsurface geology, and seasonal changes can alter the magnitude of groundwater...

  15. Competing interactions in two dimensional Coulomb systems: Surface charge heterogeneities in co-assembled cationic-anionic incompatible mixtures

    E-Print Network [OSTI]

    Sharon M. Loverde; Yury S. Velichko; Monica Olvera de la Cruz

    2006-02-14T23:59:59.000Z

    A binary mixture of oppositely charged components confined to a plane such as cationic and anionic lipid bilayers may exhibit local segregation. The relative strength of the net short range interactions, which favors macroscopic segregation, and the long range electrostatic interactions, which favors mixing, determines the length scale of the finite size or microphase segregation. The free energy of the system can be examined analytically in two separate regimes, when considering small density fluctuations at high temperatures, and when considering the periodic ordering of the system at low temperatures (F. J. Solis and M. Olvera de la Cruz, J. Chem. Phys. 122, 054905 (2000)). A simple Molecular Dynamics simulation of oppositely charged monomers, interacting with a short range Lennard Jones potential and confined to a two dimensional plane, is examined at different strengths of short and long range interactions. The system exhibits well-defined domains that can be characterized by their periodic length-scale as well as the orientational ordering of their interfaces. By adding salt, the ordering of the domains disappears and the mixture macroscopically phase segregates in agreement with analytical predictions.

  16. The surface structure of ?-uranophane and its interaction with Eu(III) – An integrated computational and fluorescence spectroscopy study

    SciTech Connect (OSTI)

    Kuta, Jadwiga; Wang, Zheming; Wisuri, Katy; Wander, Matthew C F.; Wall, Nathalie; Clark, Aurora E.

    2013-02-15T23:59:59.000Z

    Uranophane is a rare U(VI) secondary silicate mineral formed in nature by the oxidation of the primary mineral uraninite. It is also relevant to the long-term geochemistry of nuclear waste repositories, where it can be formed under oxidizing conditions and has the potential to act as a secondary barrier to the migration of radionuclides through mineral sorption reactions. A combination of classical molecular dynamics and ab-initio density functional theory (DFT) has been employed to investigate the uranophane|water interface as well as the interfacial reactivity of the U(VI) silicate toward acidic conditions and radionuclide ion sorption. The sorption simulations have been complemented by experimental sorption studies and laser induced fluorescence spectroscopy to help identify the molecular structure of the surface sorbed species. Experimental distances and essential coordination numbers are properly captured by the simulation results within bulk uranophane, while interfacial water is found to orient primarily with the hydrogen-atoms directed towards the negatively charged surface. Sorption sites for water are observed to belong to 3 different groups: (1) those involving uranyl oxygen, (2) involving uranyl and silica hydroxyl oxygen atoms, and (3) involving hydroxyl hydrogen. The pKa of the surface -OH groups have been calculated using a variety of models, including a bond valence approach and utilization of the energetics of deprotonation within DFT. Under basic conditions, deprotonation of the Si-OH groups is likely responsible for uranophane dissolution. Finally, the stability and structure of surface sorbed Eu3+ has been examined, with a stable inner-sphere species being observed.

  17. Role of solid-state interactions in the acid-catalyzed thermolysis of surface-attached diphenylalkanes

    SciTech Connect (OSTI)

    Buchanan, A.C. III; Britt, P.F.; Biggs, C.A.

    1991-01-01T23:59:59.000Z

    The cross-linked, network structure of coal may impose constraints on conventional reaction mechanisms as a consequence of restricted mass transport. We have examined this phenomenon for thermal reactions through the study of model compounds that are covalently anchored to an inert silica surface (1). We have now initiated studies that employ these immobilized model compounds as solid-state probes in modeling fundamental aspects of catalyzed, heterogeneous reactions of coal. There have been numerous recent reports on the development of unsupported, highly dispersed catalysts for improving the conversion and product selectivity in coal liquefaction (2,3) and hydropyrolysis (4). A potential advantage of such dispersed catalysts is the improved contact between the coal, solvent vehicle if present, hydrogen gas, and the catalyst surface, particularly when catalysts with very small particle sizes can be generated. In this paper, we report initial results from a model system that begins to address the mechanistic question of if, in the early stages of coal dissolution, significant activation of solid coal particles by solid catalyst can occur. For this study, surface-immobilized 1,3-diphenylpropane ({approx}DPP) has been employed as a model for related trimethylene (and longer) aliphatic linking groups between aromatic clusters in coal, and its reactivity in the presence of a dispersed aluminosilicate at 310--375{degree}C has been investigated. 8 refs., 2 figs.

  18. Land-use Leakage

    SciTech Connect (OSTI)

    Calvin, Katherine V.; Edmonds, James A.; Clarke, Leon E.; Bond-Lamberty, Benjamin; Kim, Son H.; Wise, Marshall A.; Thomson, Allison M.; Kyle, G. Page

    2009-12-01T23:59:59.000Z

    Leakage occurs whenever actions to mitigate greenhouse gas emissions in one part of the world unleash countervailing forces elsewhere in the world so that reductions in global emissions are less than emissions mitigation in the mitigating region. While many researchers have examined the concept of industrial leakage, land-use policies can also result in leakage. We show that land-use leakage is potentially as large as or larger than industrial leakage. We identify two potential land-use leakage drivers, land-use policies and bioenergy. We distinguish between these two pathways and run numerical experiments for each. We also show that the land-use policy environment exerts a powerful influence on leakage and that under some policy designs leakage can be negative. International “offsets” are a potential mechanism to communicate emissions mitigation beyond the borders of emissions mitigating regions, but in a stabilization regime designed to limit radiative forcing to 3.7 2/m2, this also implies greater emissions mitigation commitments on the part of mitigating regions.

  19. Energy and land use

    SciTech Connect (OSTI)

    Not Available

    1981-12-01T23:59:59.000Z

    This report addresses the land use impacts of past and future energy development and summarizes the major federal and state legislation which influences the potential land use impacts of energy facilities and can thus influence the locations and timing of energy development. In addition, this report describes and presents the data which are used to measure, and in some cases, predict the potential conflicts between energy development and alternative uses of the nation's land resources. The topics section of this report is divided into three parts. The first part describes the myriad of federal, state and local legislation which have a direct or indirect impact upon the use of land for energy development. The second part addresses the potential land use impacts associated with the extraction, conversion and combustion of energy resources, as well as the disposal of wastes generated by these processes. The third part discusses the conflicts that might arise between agriculture and energy development as projected under a number of DOE mid-term (1990) energy supply and demand scenarios.

  20. Surface plasmon resonance method for probing interactions in nanostructures: CdS nanoparticles linked to Au and Ag substrates by self-assembled hexanedithiol and aminoethanethiol monolayers

    SciTech Connect (OSTI)

    Hutter, E.; Fendler, J. H.; Roy, D.

    2001-08-15T23:59:59.000Z

    Self-assembled hexanedithiol (HDT) and aminoethanethiol (AET) monolayers (SAMs), {approx}0.4--0.8 nm in thickness, are used to link {approx}5 nm diam CdS nanoparticles covalently and electrostatically onto Au and Ag substrates. The resulting nanostructures are probed with scanning electron microscopy (SEM) and surface plasmon resonance (SPR) measurements. The CdS nanoparticle--SAM--substrate interactions manifesting themselves in the dielectric functions of the multilayered systems, are detected in the SPR data, and are discussed in terms of a phenomenological six-layer model. The SPR response of the Ag substrate is more sensitive to neighboring interactions than the Au substrate. The SEM images show that the CdS, connected either by HDT or AET onto Ag substrates, forms crystalline structures. The interactions responsible for this crystallization are absent in samples employing Au substrates, in which case only {approx}5 nm diam CdS nanoparticles are detected by SEM. The experimental results of the present article, analyzed in detail using Fresnel and Maxwell equations, demonstrate how the SPR technique can be used to characterize layered nanostructured materials. {copyright} 2001 American Institute of Physics.

  1. Functional Characterization and Surface Mapping of Frataxin (FXN) Interactions with the Fe-S Cluster Assembly Complex

    E-Print Network [OSTI]

    Thorstad, Melissa

    2013-05-23T23:59:59.000Z

    (ISCU & NFS1/ISD11) for cluster synthesis. Under steady state conditions, FXN42-210 is cleaved to FXN81-210, which interacts with NFS1/ISD11 and ISCU to facilitate Fe-S cluster assembly. However, under conditions of cell growth... or toxic to biological systems; thus, organisms have developed in vivo assembly systems for de novo cluster synthesis [4]. The pioneering work by the Dean and Tokumoto groups identified the three Fe-S cluster biosynthesis systems of bacteria (Figure 1...

  2. Energy balance and partition in Inner Mongolia steppe ecosystems with different land use types

    E-Print Network [OSTI]

    Chen, Jiquan

    Energy balance and partition in Inner Mongolia steppe ecosystems with different land use types surface, including radiation balance, energy partitioning, aerodynamic characteristics, leaf area index records of the surface energy balance are currently available for grassland ecosystems, especially

  3. The effects of 20-hydroxyecdysone on cell surface proteins and cell interactions in Drosophila melanogaster cell lines

    E-Print Network [OSTI]

    Stachowiak, Janice Ann

    1986-01-01T23:59:59.000Z

    surface proteins of 53 cells occurs in high molecular weight polypeptides. These results are similar to those obtained by others working with imaginal discs and cell lines. In particular, a 93 kD and a 110-114 kD polypeptide have been shown to increase... and 3. 6 and a molecular weight above 45 kD (Woods and Poodry, 1983; Sater et a/, , 1984). As mentioned prevrously, different cell lines respond differently to 20-HOE. Both L3 and S3 cells respond by mitotic arrest, but only 53 cells aggregate...

  4. Lands & Community

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home asLCLSLaboratoryRowland to receiveLand ManagementLands

  5. Title: Canada Land Inventory: Land Capability for Recreation Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: Land Capability for Recreation Data Creator / Copyright Owner: National Archives of Canada, Visual and Sound Archives Division Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed

  6. Title: Canada Land Inventory: Land Capability for Ungulates Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: Land Capability for Ungulates Data Creator / Copyright Owner: National Archives of Canada, visual and Sound Archives Division Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed

  7. Title: Canada Land Inventory: Land Capability for Agriculture Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: Land Capability for Agriculture Data Creator / Copyright Owner: National Archives of Canada, Visual and Sound Archives Division Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed

  8. 105Lunar Crater Frequency Distributions This image of the 800-meter x 480-meter region near the Apollo-11 landing pad

    E-Print Network [OSTI]

    the Apollo-11 landing pad (arrow) was taken by the Lunar Reconnaissance Orbiter (LRO). It reveals hundreds of craters covering the landing area with sizes as small as 5 meters. The Apollo-11 landing pad is near and gives the surface density of craters near the Apollo-11 landing site in terms of craters per kilometer 2

  9. National Forest Land Scheme

    E-Print Network [OSTI]

    and Community Right to Buy. Communities are encouraged to register an interest in the land they wish to buy Ministers to make a late registration of interest. When Forestry Commission Scotland decides to sell, a community organisation could consider the opportunities for working in partnership with Forestry Commission

  10. County Land Preservation and Use Commissions (Iowa)

    Broader source: Energy.gov [DOE]

    This ordinance creates Land Preservation and Use Commissions in each county to provide for the orderly use and development of land, to protect agricultural land from nonagricultural development,...

  11. A framework for benchmarking land models

    SciTech Connect (OSTI)

    Luo, Yiqi; Randerson, J.; Abramowitz, G.; Bacour, C.; Blyth, E.; Carvalhais, N.; Ciais, Philippe; Dalmonech, D.; Fisher, J.B.; Fisher, R.; Friedlingstein, P.; Hibbard, Kathleen A.; Hoffman, F. M.; Huntzinger, Deborah; Jones, C.; Koven, C.; Lawrence, David M.; Li, D.J.; Mahecha, M.; Niu, S.L.; Norby, Richard J.; Piao, S.L.; Qi, X.; Peylin, P.; Prentice, I.C.; Riley, William; Reichstein, M.; Schwalm, C.; Wang, Y.; Xia, J. Y.; Zaehle, S.; Zhou, X. H.

    2012-10-09T23:59:59.000Z

    Land models, which have been developed by the modeling community in the past few decades to predict future states of ecosystems and climate, have to be critically evaluated for their performance skills of simulating ecosystem responses and feedback to climate change. Benchmarking is an emerging procedure to measure performance of models against a set of defined standards. This paper proposes a benchmarking framework for evaluation of land model performances and, meanwhile, highlights major challenges at this infant stage of benchmark analysis. The framework includes (1) targeted aspects of model performance to be evaluated, (2) a set of benchmarks as defined references to test model performance, (3) metrics to measure and compare performance skills among models so as to identify model strengths and deficiencies, and (4) model improvement. Land models are required to simulate exchange of water, energy, carbon and sometimes other trace gases between the atmosphere and land surface, and should be evaluated for their simulations of biophysical processes, biogeochemical cycles, and vegetation dynamics in response to climate change across broad temporal and spatial scales. Thus, one major challenge is to select and define a limited number of benchmarks to effectively evaluate land model performance. The second challenge is to develop metrics of measuring mismatches between models and benchmarks. The metrics may include (1) a priori thresholds of acceptable model performance and (2) a scoring system to combine data–model mismatches for various processes at different temporal and spatial scales. The benchmark analyses should identify clues of weak model performance to guide future development, thus enabling improved predictions of future states of ecosystems and climate. The near-future research effort should be on development of a set of widely acceptable benchmarks that can be used to objectively, effectively, and reliably evaluate fundamental properties of land models to improve their prediction performance skills.

  12. Surface Coal Mining Regulations (Mississippi)

    Broader source: Energy.gov [DOE]

    The Surface Coal Mining Regulations are a combination of permitting requirements and environmental regulations that limit how, where and when coal can be mined. It protects lands that are under...

  13. Aggressive landing maneuvers for unmanned aerial vehicles

    E-Print Network [OSTI]

    Bayraktar, Selcuk

    2006-01-01T23:59:59.000Z

    VTOL (Vertical Take Off and Landing) vehicle landing is considered to be a critically difficult task for both land, marine, and urban operations. This thesis describes one possible control approach to enable landing of ...

  14. Please cite this article in press as: J.N. Brooks, et al., Modeling of plasma/lithium-surface interactions in NSTX: Status and key issues. Fusion Eng. Des. (2011), doi:10.1016/j.fusengdes.2011.08.002

    E-Print Network [OSTI]

    Harilal, S. S.

    2011-01-01T23:59:59.000Z

    .elsevier.com/locate/fusengdes Modeling of plasma/lithium-surface interactions in NSTX: Status and key issues J.N. Brooks , A. Hassanein history: Available online xxx Keywords: Lithium NSTX Plasma material interactions Erosion a b s t r a c nuclear science facility or DEMO. Accordingly, we have been analyzing lithium plasma surface interactions

  15. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, VOL. 3, NO. 3, SEPTEMBER 2010 219 Impacts of Climate Change and Land Use Changes

    E-Print Network [OSTI]

    Liang, Shunlin

    governed by eco- nomic development and air pollution regulations [3]. Variations in incident solar, SEPTEMBER 2010 219 Impacts of Climate Change and Land Use Changes on Land Surface Radiation and Energy Budgets Abstract--Land surface radiation and energy budgets are critical to address a variety

  16. RCRA, superfund and EPCRA hotline training module. Introduction to: Land disposal units (40 cfr parts 264/265, subparts k, l, m, n) updated July 1996

    SciTech Connect (OSTI)

    NONE

    1996-07-01T23:59:59.000Z

    The module provides an overview of the requirements for landfills, surface impoundments, waste piles, and land treatment units. It summarizes the differences between interim status (Part 265) and permitted (Part 264) standards for land disposal units. It defines `surface impoundment` and distinguishes surface impoundments from tanks and describes surface impoundment retrofitting and retrofitting variance procedures. It explains the connection between land disposal standards, post-closure, and groundwater monitoring.

  17. Policy message Access to land and land rights,

    E-Print Network [OSTI]

    Richner, Heinz

    agriculture can reduce land deg- radation, support agricultural development, and mitigate rural poverty conservation tech- niques by producing food, fodder, fibre, or fuel. · Sustainable farming practices produce

  18. Comparing and modeling land use organization in cities

    E-Print Network [OSTI]

    Lenormand, Maxime; Cantú-Ros, Oliva G; Louail, Thomas; Herranz, Ricardo; Barthelemy, Marc; Frías-Martínez, Enrique; Miguel, Maxi San; Ramasco, José J

    2015-01-01T23:59:59.000Z

    The advent of geolocated ICT technologies opens the possibility of exploring how people use space in cities, bringing an important new tool for urban scientists and planners, especially for regions where data is scarce or not available. Here we apply a functional network approach to determine land use patterns from mobile phone records. The versatility of the method allows us to run a systematic comparison between Spanish cities of various sizes. The method detects four major land use types that correspond to different temporal patterns. The proportion of these types, their spatial organization and scaling show a strong similarity between all cities that breaks down at a very local scale, where land use mixing is specific to each urban area. Finally, we introduce a model inspired by Schelling's segregation, able to explain and reproduce these results with simple interaction rules between different land uses.

  19. Land Management - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home asLCLSLaboratoryRowland to receiveLand Management About

  20. Abstracts and parameter index database for reports pertaining to the unsaturated zone and surface water-ground water interactions at the Idaho National Engineering Laboratory

    SciTech Connect (OSTI)

    Bloomsburg, G.; Finnie, J.; Horn, D.; King, B.; Liou, J. [Idaho Univ., Moscow, ID (United States)

    1993-05-01T23:59:59.000Z

    This report is a product generated by faculty at the University of Idaho in support of research and development projects on Unsaturated Zone Contamination and Transport Processes, and on Surface Water-Groundwater Interactions and Regional Groundwater Flow at the Idaho National Engineering Laboratory. These projects are managed by the State of Idaho`s INEL Oversight Program under a grant from the US Department of Energy. In particular, this report meets project objectives to produce a site-wide summary of hydrological information based on a literature search and review of field, laboratory and modeling studies at INEL, including a cross-referenced index to site-specific physical, chemical, mineralogic, geologic and hydrologic parameters determined from these studies. This report includes abstracts of 149 reports with hydrological information. For reports which focus on hydrological issues, the abstracts are taken directly from those reports; for reports dealing with a variety of issues beside hydrology, the abstracts were generated by the University of Idaho authors concentrating on hydrology-related issues. Each abstract is followed by a ``Data`` section which identifies types of technical information included in a given report, such as information on parameters or chemistry, mineralogy, stream flows, water levels. The ``Data`` section does not include actual values or data.

  1. User`s Guide: Database of literature pertaining to the unsaturated zone and surface water-ground water interactions at the Idaho National Engineering Laboratory

    SciTech Connect (OSTI)

    Hall, L.F.

    1993-05-01T23:59:59.000Z

    Since its beginnings in 1949, hydrogeologic investigations at the Idaho National Engineering Laboratory (INEL) have resulted in an extensive collection of technical publications providing information concerning ground water hydraulics and contaminant transport within the unsaturated zone. Funding has been provided by the Department of Energy through the Department of Energy Idaho Field Office in a grant to compile an INEL-wide summary of unsaturated zone studies based on a literature search. University of Idaho researchers are conducting a review of technical documents produced at or pertaining to the INEL, which present or discuss processes in the unsaturated zone and surface water-ground water interactions. Results of this review are being compiled as an electronic database. Fields are available in this database for document title and associated identification number, author, source, abstract, and summary of information (including types of data and parameters). AskSam{reg_sign}, a text-based database system, was chosen. WordPerfect 5.1{copyright} is being used as a text-editor to input data records into askSam.

  2. CATHETER SURFACE INTERACTIONS WITH HUMAN

    E-Print Network [OSTI]

    Müftü, Sinan

    and Porosity positively impacts lubricity and reduces tissue trauma. Con: Hydrogel tends to delaminate due of Polyurethane Catheter (uncoated) Polyurethane coated with Poly (MCP-co- BMA) polymer Test enviroments: Vacuum

  3. Title: Canada Land Inventory: Land Capability for Forestry Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: Land Capability for Forestry Data Creator / Copyright Owner: National Archives of Canada, Visual and Sound Archives Division; Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed by Natural

  4. Title: Canada Land Inventory: 1966 Land Use Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: 1966 Land Use Data Creator / Copyright Owner: National Archives of Canada, Visual and Sound Archives Division Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed by Natural Resources

  5. 4, 42654295, 2007 Impact of land-use

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    methodol- ogy which involves coupling a land-use change model with a water balance model and a groundwater groundwater model. Results show that the average recharge slowly de- creases for all scenarios, the decreases / Esc Printer-friendly Version Interactive Discussion EGU 1 Introduction Groundwater is a major source

  6. Energy Budget-Based Simulation of Evapotranspiration from Land in the Great Lakes Basin

    E-Print Network [OSTI]

    Energy Budget-Based Simulation of Evapotranspiration from Land in the Great Lakes Basin Primary-available data for change in net radiative energy for land surfaces in the same region in the same general energy available in this region according to the corresponding GCM. Thus there is a mismatch: While air

  7. Fire dynamics during the 20th century simulated by the Community Land Model

    E-Print Network [OSTI]

    Kloster, S.; Mahowald, N. M.; Randerson, J. T.; Thornton, P. E.; Hoffman, F. M.; Levis, Samuel; Lawrence, Peter J.; Feddema, Johannes J.; Oleson, Keith W.; Lawrence, David M.

    2010-01-01T23:59:59.000Z

    Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN) and improved the ability of the model to reproduce ...

  8. Bus Rapid Transit Impacts on Land Uses and Land Values in Seoul, Korea

    E-Print Network [OSTI]

    Cervero, Robert; Kang, Chang Deok

    2009-01-01T23:59:59.000Z

    an ambitious campaign of land reclamation, taking valuablehub of Seoul’s ambitious land reclamation and redevelopment

  9. Oil and Gas on Public Lands (Texas)

    Broader source: Energy.gov [DOE]

    The School Land Board may choose to lease lands for the production of oil and natural gas, on the condition that oil and gas resources are leased together and separate from other minerals. Lands...

  10. Spatial Interactions among Fuels, Wildfire, and Invasive Plants Project title

    E-Print Network [OSTI]

    Spatial Interactions among Fuels, Wildfire, and Invasive Plants Project title: Spatial Interactions Among Fuels, Wildfire, and Invasive Plants Project location: Colorado State University, Western Forest, wildfire severity, exotic plant invasions, and post-fire fuel flammability in grasslands, shrub lands

  11. Minerals on Public Lands (Texas)

    Broader source: Energy.gov [DOE]

    Any tract of land that belongs to the state, including islands, salt and freshwater lakes, bays, inlets, marshes, and reefs owned by the state within tidewater limits, the part of the Gulf of...

  12. Delaware Land Protection Act (Delaware)

    Broader source: Energy.gov [DOE]

    The Land Protection Act requires the Department of Natural Resources and Environmental Control to work with the Delaware Open Space Council to develop standards and criteria for determining the...

  13. Riparian Rights: State Land (Indiana)

    Broader source: Energy.gov [DOE]

    The state reserves the power to sell, transfer, and convey, as provided by law, rights-of-way in public land for several purposes, including pipelines, gas pipelines, water pipelines, sewer lines,...

  14. Land and Facility Use Planning

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1996-07-09T23:59:59.000Z

    The Land and Facility Use Planning process provides a way to guide future site development and reuse based on the shared long-term goals and objectives of the Department, site and its stakeholders. Does not cancel other directives.

  15. Georgia Surface Mining Act of 1968 (Georgia)

    Broader source: Energy.gov [DOE]

    This law regulates all surface mining in Georgia, including the coastal zone. It includes provisions to “advance the protection of fish and wildlife and the protection and restoration of land,...

  16. RCRA/UST, superfund and EPCRA hotline training module. Introduction to: Land disposal units (40 CFR parts 264/265, subparts K, L, M, N) updated as of July 1995

    SciTech Connect (OSTI)

    NONE

    1995-11-01T23:59:59.000Z

    The module provides and overview of the requirements for landfills, surface impoundments, waste piles, and land treatment units. It summarizes the differences between Interim Status (Part 265) and Permitted (Part 264) standards for land disposal units. It defines surface impoundment and distinguishes surface impoundments from tanks. It explains the connection between land disposal standards, post-closure, and groundwater monitoring. It cites the statutory and regulatory minimum technological requirements and describes surface impoundment retrofitting and retrofitting variance procedures.

  17. Sensitivity of Global Terrestrial Gross Primary Production to Hydrologic States Simulated by the Community Land Model Using Two Runoff Parameterizations

    SciTech Connect (OSTI)

    Lei, Huimin; Huang, Maoyi; Leung, Lai-Yung R.; Yang, Dawen; Shi, Xiaoying; Mao, Jiafu; Hayes, Daniel J.; Schwalm, C.; Wei, Yaxing; Liu, Shishi

    2014-09-01T23:59:59.000Z

    The terrestrial water and carbon cycles interact strongly at various spatio-temporal scales. To elucidate how hydrologic processes may influence carbon cycle processes, differences in terrestrial carbon cycle simulations induced by structural differences in two runoff generation schemes were investigated using the Community Land Model 4 (CLM4). Simulations were performed with runoff generation using the default TOPMODEL-based and the Variable Infiltration Capacity (VIC) model approaches under the same experimental protocol. The comparisons showed that differences in the simulated gross primary production (GPP) are mainly attributed to differences in the simulated leaf area index (LAI) rather than soil moisture availability. More specifically, differences in runoff simulations can influence LAI through changes in soil moisture, soil temperature, and their seasonality that affect the onset of the growing season and the subsequent dynamic feedbacks between terrestrial water, energy, and carbon cycles. As a result of a relative difference of 36% in global mean total runoff between the two models and subsequent changes in soil moisture, soil temperature, and LAI, the simulated global mean GPP differs by 20.4%. However, the relative difference in the global mean net ecosystem exchange between the two models is small (2.1%) due to competing effects on total mean ecosystem respiration and other fluxes, although large regional differences can still be found. Our study highlights the significant interactions among the water, energy, and carbon cycles and the need for reducing uncertainty in the hydrologic parameterization of land surface models to better constrain carbon cycle modeling.

  18. An update on land-ice modeling in the CESM

    SciTech Connect (OSTI)

    Lipscomb, William H [Los Alamos National Laboratory

    2011-01-18T23:59:59.000Z

    Mass loss from land ice, including the Greenland and Antarctic ice sheets as well as smaller glacier and ice caps, is making a large and growing contribution to global sea-level rise. Land ice is only beginning to be incorporated in climate models. The goal of the Land Ice Working Group (LIWG) is to develop improved land-ice models and incorporate them in CESM, in order to provide useful, physically-based sea-level predictions. LJWG efforts to date have led to the inclusion of a dynamic ice-sheet model (the Glimmer Community Ice Sheet Model, or Glimmer-CISM) in the Community Earth System Model (CESM), which was released in June 2010. CESM also includes a new surface-mass-balance scheme for ice sheets in the Community Land Model. Initial modeling efforts are focused on the Greenland ice sheet. Preliminary results are promising. In particular, the simulated surface mass balance for Greenland is in good agreement with observations and regional model results. The current model, however, has significant limitations: The land-ice coupling is one-way; we are using a serial version of Glimmer-CISM with the shallow-ice approximation; and there is no ice-ocean coupling. During the next year we plan to implement two-way coupling (including ice-ocean coupling with a dynamic Antarctic ice sheet) with a parallel , higher-order version of Glimmer-CISM. We will also add parameterizations of small glaciers and ice caps. With these model improvements, CESM will be able to simulate all the major contributors to 21st century global sea-level rise. Results of the first round of simulations should be available in time to be included in the Fifth Assessment Report (ARS) of the Intergovernmental Panel on Climate Change.

  19. Temporal Land Cover Analysis for Net Ecosystem Improvement

    SciTech Connect (OSTI)

    Ke, Yinghai; Coleman, Andre M.; Diefenderfer, Heida L.

    2013-04-09T23:59:59.000Z

    We delineated 8 watersheds contributing to previously defined river reaches within the 1,468-km2 historical floodplain of the tidally influenced lower Columbia River and estuary. We assessed land-cover change at the watershed, reach, and restoration site scales by reclassifying remote-sensing data from the National Oceanic and Atmospheric Administration Coastal Change Analysis Program’s land cover/land change product into forest, wetland, and urban categories. The analysis showed a 198.3 km2 loss of forest cover during the first 6 years of the Columbia Estuary Ecosystem Restoration Program, 2001–2006. Total measured urbanization in the contributing watersheds of the estuary during the full 1996-2006 change analysis period was 48.4 km2. Trends in forest gain/loss and urbanization differed between watersheds. Wetland gains and losses were within the margin of error of the satellite imagery analysis. No significant land cover change was measured at restoration sites, although it was visible in aerial imagery, therefore, the 30-m land-cover product may not be appropriate for assessment of early-stage wetland restoration. These findings suggest that floodplain restoration sites in reaches downstream of watersheds with decreasing forest cover will be subject to increased sediment loads, and those downstream of urbanization will experience effects of increased impervious surfaces on hydrologic processes.

  20. Land Reclamation Program annual report, 1979

    SciTech Connect (OSTI)

    None

    1980-09-01T23:59:59.000Z

    The Argonne Land Reclamation Program, sponsored by the United States Department of Energy's Assistant Secretary for Environment, is a joint effort of two Argonne divisions: Energy and Environmental Systems and Environmental Impact Studies. The program is carried out by a multidisciplinary team of scientists and engineers and has three primary objectives: (1) to develop energy-efficient and cost-effective mining and reclamation techniques; (2) to assist industry in evaluating the viability of environmental regulations and demonstrating techniques to meet these regulations; and (3) to supply data and evaluation techniques to decisionmakers concerned with trade-offs between energy development and environmental quality. Six integrated field research sites have been established to address problems associated with surface mining operations. This program relies heavily on input from industry and has developed working arrangements with coal companies at each of the current mining sites. A major area of interest is the development of a ten-year environmental mining and reclamation research plan for the Assistant Secretary for Environment. The Land Reclamation Program assigns the highest priority to the transfer to users of information generated by its research.

  1. A rapid method for measuring local groundwater-surface water interactions and identifying potential non-point source pollution inputs to rivers

    E-Print Network [OSTI]

    Butler, Christopher Aaron

    2009-01-01T23:59:59.000Z

    Potential Non-Point Source Pollution Inputs to Rivers APotential Non-Point Source Pollution Inputs to Rivers byof non-point source pollution to surface waters via the

  2. ELEMENTARY PARTICLE INTERACTIONS

    SciTech Connect (OSTI)

    EFREMENKO, YURI; HANDLER, THOMAS; KAMYSHKOV, YURI; SIOPSIS, GEORGE; SPANIER, STEFAN

    2013-07-30T23:59:59.000Z

    The High-Energy Elementary Particle Interactions group at UT during the last three years worked on the following directions and projects: Collider-based Particle Physics; Neutrino Physics, particularly participation in “NO?A”, “Double Chooz”, and “KamLAND” neutrino experiments; and Theory, including Scattering amplitudes, Quark-gluon plasma; Holographic cosmology; Holographic superconductors; Charge density waves; Striped superconductors; and Holographic FFLO states.

  3. Soil moisture in complex terrain: quantifying effects on atmospheric boundary layer flow and providing improved surface boundary conditions for mesoscale models

    E-Print Network [OSTI]

    Daniels, Megan Hanako

    2010-01-01T23:59:59.000Z

    groundwater, land-surface, and mesoscale atmospheric model-and modification of mesoscale circulations. , Mon. Wea.J. Davis, The effects of mesoscale surface heterogeneity on

  4. Coal conversion siting on coal mined lands: water quality issues

    SciTech Connect (OSTI)

    Triegel, E.K.

    1980-01-01T23:59:59.000Z

    The siting of new technology coal conversion facilities on land disturbed by coal mining results in both environmental benefits and unique water quality issues. Proximity to mining reduces transportation requirements and restores disrupted land to productive use. Uncertainties may exist, however, in both understanding the existing site environment and assessing the impact of the new technology. Oak Ridge National Laboratory is currently assessing the water-related impacts of proposed coal conversion facilities located in areas disturbed by surface and underground coal mining. Past mining practices, leaving highly permeable and unstable fill, may affect the design and quality of data from monitoring programs. Current mining and dewatering, or past underground mining may alter groundwater or surface water flow patterns or affect solid waste disposal stability. Potential acid-forming material influences the siting of waste disposal areas and the design of grading operations. These and other problems are considered in relation to the uncertainties and potentially unique problems inherent in developing new technologies.

  5. s-d Electronic interactions induced H2 dissociation on the \\gamma-U(100) surface and influences of niobium doping

    E-Print Network [OSTI]

    Yang, Yu; Shi, Peng; Wang, Xiaolin

    2011-01-01T23:59:59.000Z

    The dissociation of hydrogen molecules on the \\gamma-U(100) surface is systematically studied with the density functional theory method. Through potential energy surface calculations, we find that hydrogen molecules can dissociate without any barriers on the clean \\gamma-U(100) surface. After careful electronic analysis, it is found that charge transfer between the hydrogen s and uranium d electronic states causes the dissociation, which is quite different from the dissociation of hydrogen molecules on other actinide metal surfaces. Considering that doping of 3d transition metal atoms can stabilize the \\alpha phase of U, we also study the influences of Nb-doping on the hydrogen dissociation process. We find that the 3d electronic states of Nb also take part in the hybridization with hydrogen s electronic states, which leads to the result that hydrogen molecules also dissociate without any energy barriers on the doped U surface. In addition, the free electronic energy lowers down more quickly for a hydrogen mo...

  6. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Evaluation of 'all weather' microwave-derived land

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Evaluation of 'all weather measurements over land are still limited, especially under cloudy con- ditions. Ts estimates from infrared water vapor, cloud liquid wa- ter, and surface emissivities over land from Special Sensor Microwave / Im

  7. Water and Energy Interactions

    E-Print Network [OSTI]

    McMahon, James E.

    2013-01-01T23:59:59.000Z

    requires water for land reclamation and revegetation (2).energy from coal. Land reclamation and coal burning tomain water uses are for land reclamation and revegetation.

  8. The influence of surface interactions on the reversibility of ferri/ferrocyanide at boron-doped diamond thin-film electrodes

    SciTech Connect (OSTI)

    Granger, M.C.; Swain, G.M.

    1999-12-01T23:59:59.000Z

    The electrochemistry of four redox analytes [Fe(CN){sub 6}{sup {minus}3/{minus}4}, Ru(NH{sub 3}){sub 6}{sup +2/+3}, IrCl{sub 6}{sup {minus}2/{minus}3}, and methyl viologen, MV{sup +2/+/0}] was investigated at polycrystalline, boron-doped diamond thin-film electrodes before and after anodic polarization and hydrogen plasma treatment. The as-deposited diamond surface is predominantly hydrogen treatment, and quasi-reversible cyclic voltammograms ({Delta}E{sub p} of 60--80 mV) were observed for all of these couples at 0.1 V/s. After anodic polarization in H{sub 2}SO{sub 4}, the surface atomic O/C ratio, as determined by X-ray photoelectron spectroscopy, increased from 0.02 to ca. 0.20. Concomitant with the increase in surface oxygen, the {Delta}E{sub p} for Fe(CN){sub 6}{sup {minus}3/{minus}4} increased to over 200 mV, while the {Delta}E{sub p} values for the other redox systems remained relatively unchanged. After acid washing and rehydrogenating the surface in hydrogen plasma (i.e., atomic hydrogen), the {Delta}E{sub p} for Fe(CN){sub 6}{sup {minus}3/{minus}4} returned to ca. 80 mV, while the {Delta}E{sub p} values for the other three redox analytes remained close to the original values. The results demonstrate the electron transfer for ferri/ferrocyanide is very sensitive to the presence of surface carbon-oxygen functionalities and that the electron transfer involves a site associated with the hydrogen-terminated surface. The results also unequivocally rule out the influence of adventitious nondiamond phases as the sole sites for the electron transfer.

  9. 3, 18091850, 2006 groundwater-surface

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HESSD 3, 1809­1850, 2006 Measuring groundwater-surface water interactions: a review E. Kalbus et al System Sciences Measuring methods for groundwater, surface water and their interactions: a review E;HESSD 3, 1809­1850, 2006 Measuring groundwater-surface water interactions: a review E. Kalbus et al

  10. Direct measurements of the energy flux due to chemical reactions at the surface of a silicon sample interacting with a SF6 plasma

    E-Print Network [OSTI]

    Dussart, Remi; Pichon, Laurianne E; Bedra, Larbi; Semmar, Nadjib; Lefaucheux, Philippe; Mathias, Jacky; Tessier, Yves; 10.1063/1.2995988

    2008-01-01T23:59:59.000Z

    Energy exchanges due to chemical reactions between a silicon surface and a SF6 plasma were directly measured using a heat flux microsensor (HFM). The energy flux evolution was compared with those obtained when only few reactions occur at the surface to show the part of chemical reactions. At 800 W, the measured energy flux due to chemical reactions is estimated at about 7 W.cm\\^{-2} against 0.4 W.cm\\^{-2} for ion bombardment and other contributions. Time evolution of the HFM signal is also studied. The molar enthalpy of the reaction giving SiF4 molecules was evaluated and is consistent with values given in literature.

  11. Formulas for the force dipole interaction of surface line defects in homoepitaxy This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Margetis, Dionisios

    decays as R-3 . This behavior is contrasted with the elastic interaction energy arising in heteroepitaxy of contents for this issue, or go to the journal homepage for more Home Search Collections Journals About energy per unit length between line defects (steps) of the same sign that form perturbations of circles

  12. 2011LandesBioscience. Donotdistribute.

    E-Print Network [OSTI]

    /November/December 2011; © 2011 Landes Bioscience MethODs & techNicaL aDvaNces MethODs & techNicaL a of the GFP- or YFP-expressing balancers has specific advantages, but all share a common draw- back a Tubby1 (Tb1 ) dominant transgene. Flies heterozygous for these FM7a and CyO derivatives exhibit

  13. Length Scale Analysis of Surface Energy Fluxes Derived from Remote Sensing

    E-Print Network [OSTI]

    Brunsell, Nathaniel A.; Gillies, Robert R.

    2003-01-01T23:59:59.000Z

    the variability across different spatial res- olutions in input data translates into variation across scales in modeled output. This issue is of prime im- portance to the remote sensing community involved in the modeling of land–atmosphere interactions...1212 VOLUME 4J O U R N A L O F H Y D R O M E T E O R O L O G Y q 2003 American Meteorological Society Length Scale Analysis of Surface Energy Fluxes Derived from Remote Sensing NATHANIEL A. BRUNSELL* Department of Plants, Soils, and Biometeorology...

  14. Surface Salt Bridges, Double-Mutant Cycles, and Protein Stability: an Experimental and Computational Analysis of the Interaction of the Asp 23 Side Chain with the

    E-Print Network [OSTI]

    Snow, Christopher

    Surface Salt Bridges, Double-Mutant Cycles, and Protein Stability: an Experimental-mutant cycles have been used to investigate a salt bridge in the N-terminal domain of the protein L9. Aspartic solvent-exposed salt bridge with the protonated N-terminus of the protein. Mutations were studied in which

  15. Tropical Africa: Land use, biomass, and carbon estimates for 1980

    SciTech Connect (OSTI)

    Brown, S. [Environmental Protection Agency, Corvallis, OR (United States). Western Ecology Division; Gaston, G. [Environmental Protection Agency, Corvallis, OR (United States). National Research Council; Daniels, R.C. [ed.] [Oak Ridge National Lab., TN (United States)

    1996-06-01T23:59:59.000Z

    This document describes the contents of a digital database containing maximum potential aboveground biomass, land use, and estimated biomass and carbon data for 1980 and describes a methodology that may be used to extend this data set to 1990 and beyond based on population and land cover data. The biomass data and carbon estimates are for woody vegetation in Tropical Africa. These data were collected to reduce the uncertainty associated with the possible magnitude of historical releases of carbon from land use change. Tropical Africa is defined here as encompassing 22.7 x 10{sup 6} km{sup 2} of the earth`s land surface and includes those countries that for the most part are located in Tropical Africa. Countries bordering the Mediterranean Sea and in southern Africa (i.e., Egypt, Libya, Tunisia, Algeria, Morocco, South Africa, Lesotho, Swaziland, and Western Sahara) have maximum potential biomass and land cover information but do not have biomass or carbon estimate. The database was developed using the GRID module in the ARC/INFO{sup TM} geographic information system. Source data were obtained from the Food and Agriculture Organization (FAO), the U.S. National Geophysical Data Center, and a limited number of biomass-carbon density case studies. These data were used to derive the maximum potential and actual (ca. 1980) aboveground biomass-carbon values at regional and country levels. The land-use data provided were derived from a vegetation map originally produced for the FAO by the International Institute of Vegetation Mapping, Toulouse, France.

  16. Minerals on School and Public Lands

    Broader source: Energy.gov [DOE]

    The Commissioner of School and Public Lands is authorized to lease the mineral interests of such lands for development. Section 5-7 of the SD Codified Laws describes provisions for the leasing of...

  17. Marginal, Erodible Land Retirement Policy (Minnesota)

    Broader source: Energy.gov [DOE]

    It is state policy to encourage the retirement of marginal, highly erodible land, particularly land adjacent to public waters and drainage systems, from crop production and to reestablish a cover...

  18. Mapping Savanna Land Change of Belize 

    E-Print Network [OSTI]

    Wilson, Lauren

    2011-11-24T23:59:59.000Z

    was assessed using a confusion matrix. The results of the research confirmed the capabilities of Landsat imagery for mapping savannas and their land use. The classification of forest and savanna along with major land use pressures from agriculture...

  19. Addressing land-based discrimination in

    E-Print Network [OSTI]

    Richner, Heinz

    , feudalism was based on ownership of land, the dominant mode of production. Political power was dominated by absolute kings and feudal overlords. Wealth and position in society was derived from the land ownership

  20. Analysis of the densification of reclaimed surface mined land

    E-Print Network [OSTI]

    Schneider, William Joseph

    1977-01-01T23:59:59.000Z

    exposures 2500 ft north of the spoil pile. The height is measured in ft from the top of the main lignite. 18 Geologic Section 2 based on pit exposures 800 ft north of the spoil pile. The height is measured in ft from the top of the main lignite... pit. For scale, the line is 25 ft. 25 15 Channel sands at the north end of the pit. For scale, the line is ten ft. 26 Unconformable contact (arrow) of the northern channel and the lignite. For scale, the picture is about 8 ft wide. 27 17 Minor...

  1. TNRC 51 - Land, Timber and Surface Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpodsSweetwaterTMA Global Wind Energyof Coastal51

  2. Modification ofregional groundwater regimes by land reclamation

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Modification ofregional groundwater regimes by land reclamation Jiu Jimmy Jiao Department ofEarth Sciences, The University ofHong Kong, P. R. China Abstract JJ.Jiao Land reclamation has played;Bouchardetal., 1998;Schofield etal., 1992). While reclamation provides valuable land, it also creates various

  3. Surface nonlinear optics

    SciTech Connect (OSTI)

    Shen, Y.R.; Chen, C.K.; de Castro, A.R.B.

    1980-01-01T23:59:59.000Z

    Surface electromagnetic waves are waves propagating along the interface of two media. Their existence was predicted by Sommerfield in 1909. In recent years, interesting applications have been found in the study of overlayers and molecular adsorption on surfaces, in probing of phase transitions, and in measurements of refractive indices. In the laboratory, the nonlinear interaction of surface electromagnetic waves were studied. The preliminary results of this recent venture in this area are presented.

  4. Running surface couplings

    E-Print Network [OSTI]

    S. D. Odintsov; A. Wipf

    1995-06-19T23:59:59.000Z

    We discuss the renormalization group improved effective action and running surface couplings in curved spacetime with boundary. Using scalar self-interacting theory as an example, we study the influence of the boundary effects to effective equations of motion in spherical cap and the relevance of surface running couplings to quantum cosmology and symmetry breaking phenomenon. Running surface couplings in the asymptotically free SU(2) gauge theory are found.

  5. Neutrino geophysics with KamLAND and future prospects

    E-Print Network [OSTI]

    S. Enomoto; E. Ohtani; K. Inoue; A. Suzuki

    2005-10-20T23:59:59.000Z

    The Kamioka liquid scintillator anti-neutrino detector (KamLAND) is a low-energy and low-background neutrino detector which could be a useful probe for determining the U and Th abundances of the Earth. We constructed a model of the Earth in order to evaluate the rate of geologically produced anti-neutrinos (geo-neutrinos) detectable by KamLAND. We found that KamLAND can be used to determine the absolute abundances of U and Th in the Earth with an accuracy sufficient for placing important constraints on Earth's accretional process and succeeding thermal history. The present observation of geo-neutrinos with KamLAND is consistent with our model prediction based on the bulk silicate Earth (BSE) composition within the uncertainty of the measurement. If a neutrino detector were to be built in Hawaii, where effects of the continental crust would be negligible, it could be used to estimate the U and Th content in the lower mantle and the core. Our calculation of the geo-neutrino event rate on the Earth's surface indicates that geo-neutrino observation can provide key information for testing the current models for the content and distribution of U and Th in the Earth.

  6. Land Tenure (to the End of the Ptolemaic Period)

    E-Print Network [OSTI]

    Katary, Sally

    2012-01-01T23:59:59.000Z

    for highly successful land reclamation in the Fayum,successful large-scale land reclamation (Kehoe 2010: 316).

  7. Assessment of Uncertainties in the Response of the African Monsoon Precipitation to Land Use change simulated by a regional model

    SciTech Connect (OSTI)

    Hagos, Samson M.; Leung, Lai-Yung R.; Xue, Yongkang; Boone, Aaron; de Sales, Fernando; Neupane, Naresh; Huang, Maoyi; Yoon, Jin-Ho

    2014-02-22T23:59:59.000Z

    Land use and land cover over Africa have changed substantially over the last sixty years and this change has been proposed to affect monsoon circulation and precipitation. This study examines the uncertainties on the effect of these changes on the African Monsoon system and Sahel precipitation using an ensemble of regional model simulations with different combinations of land surface and cumulus parameterization schemes. Although the magnitude of the response covers a broad range of values, most of the simulations show a decline in Sahel precipitation due to the expansion of pasture and croplands at the expense of trees and shrubs and an increase in surface air temperature.

  8. DNA ELECTROPHORESIS AT SURFACES

    SciTech Connect (OSTI)

    RAFAILOVICH, MIRIAM; SOKOLOV, JONATHAN; GERSAPPE, DILIP

    2003-09-01T23:59:59.000Z

    During this year we performed two major projects: I. We developed a detailed theoretical model which complements our experiments on surface DNA electrophoresis. We found that it was possible to enhance the separation of DNA chains by imposing a chemical nanoscale pattern on the surface. This approach utilized the surface interaction effect of the DNA chains with the substrate and is a refinement to our previous method in which DNA chains were separated on homogeneous flat surfaces. By introducing the nano-patterns on the surface, the conformational changes of DNA chains of different lengths can be amplified, which results in the different friction strengths with the substrate surface. Our results also show that, when compared to the DNA electrophoresis performed on homogeneous flat surfaces, nanopatterned surfaces offer a larger window in choosing different surface interactions to achieve separation. II. In collaboration with a large international manufacturer of skin care products we also embarked on a project involving photo toxicity of titanium dioxide nanoparticles, which are a key ingredient in sunscreen and cosmetic lotions. The results clearly implicated the nanoparticles in catalyzing damage to chromosomal DNA. We then used this knowledge to develop a polymer/anti-oxidant coating which prevented the photocatalytic reaction on DNA while still retaining the UV absorptive properties of the nanoparticles. The standard gel electrophoresis was not sufficient in determining the extent of the DNA damage. The conclusions of this study were based predominantly on analysis obtained with the surface electrophoresis method.

  9. Stewardship of public school land by the General Land Office

    E-Print Network [OSTI]

    Zechiel, Tod Peter

    1987-01-01T23:59:59.000Z

    (a V. Nrelnh Nnl da (L Nr(PN Huis I. Veil Ill(en S. Hncnf th hraa( 4 hn Ihpr. i ha Ner(n J. (Irasr ~ Veiler N. Irene Caryn @riot( S. ladler laali ~ N. Seal Nalrnvl lie J. R Ie Saa Nrrcn J Mf((ay Satan 1. Srpp ~ (luhorttlls liar ll ~ 9(5/bh... AND CHARACTERISTICS OF THE RANGELAND The Area Under Stewardshi p Climate of the Trans-Pecos Vegetational Associations of the Trans-Pecos Uses of the Range Resources OPERATIONS OF THE ALPINE FIELD OFFICE Responsibi 1ities Assisting the Land Management Division...

  10. Wind Development on Tribal Lands

    SciTech Connect (OSTI)

    Ken Haukaas; Dale Osborn; Belvin Pete

    2008-01-18T23:59:59.000Z

    Background: The Rosebud Sioux Tribe (RST) is located in south central South Dakota near the Nebraska border. The nearest community of size is Valentine, Nebraska. The RST is a recipient of several Department of Energy grants, written by Distributed Generation Systems, Inc. (Disgen), for the purposes of assessing the feasibility of its wind resource and subsequently to fund the development of the project. Disgen, as the contracting entity to the RST for this project, has completed all the pre-construction activities, with the exception of the power purchase agreement and interconnection agreement, to commence financing and construction of the project. The focus of this financing is to maximize the economic benefits to the RST while achieving commercially reasonable rates of return and fees for the other parties involved. Each of the development activities required and its status is discussed below. Land Resource: The Owl Feather War Bonnet 30 MW Wind Project is located on RST Tribal Trust Land of approximately 680 acres adjacent to the community of St. Francis, South Dakota. The RST Tribal Council has voted on several occasions for the development of this land for wind energy purposes, as has the District of St. Francis. Actual footprint of wind farm will be approx. 50 acres. Wind Resource Assessment: The wind data has been collected from the site since May 1, 2001 and continues to be collected and analyzed. The latest projections indicate a net capacity factor of 42% at a hub height of 80 meters. The data has been collected utilizing an NRG 9300 Data logger System with instrumentation installed at 30, 40 and 65 meters on an existing KINI radio tower. The long-term annual average wind speed at 65-meters above ground level is 18.2 mph (8.1 mps) and 18.7 mph (8.4 mps) at 80-meters agl. The wind resource is excellent and supports project financing.

  11. Technology for Increasing Geothermal Energy Productivity. Computer Models to Characterize the Chemical Interactions of Goethermal Fluids and Injectates with Reservoir Rocks, Wells, Surface Equiptment

    SciTech Connect (OSTI)

    Nancy Moller Weare

    2006-07-25T23:59:59.000Z

    This final report describes the results of a research program we carried out over a five-year (3/1999-9/2004) period with funding from a Department of Energy geothermal FDP grant (DE-FG07-99ID13745) and from other agencies. The goal of research projects in this program were to develop modeling technologies that can increase the understanding of geothermal reservoir chemistry and chemistry-related energy production processes. The ability of computer models to handle many chemical variables and complex interactions makes them an essential tool for building a fundamental understanding of a wide variety of complex geothermal resource and production chemistry. With careful choice of methodology and parameterization, research objectives were to show that chemical models can correctly simulate behavior for the ranges of fluid compositions, formation minerals, temperature and pressure associated with present and near future geothermal systems as well as for the very high PT chemistry of deep resources that is intractable with traditional experimental methods. Our research results successfully met these objectives. We demonstrated that advances in physical chemistry theory can be used to accurately describe the thermodynamics of solid-liquid-gas systems via their free energies for wide ranges of composition (X), temperature and pressure. Eight articles on this work were published in peer-reviewed journals and in conference proceedings. Four are in preparation. Our work has been presented at many workshops and conferences. We also considerably improved our interactive web site (geotherm.ucsd.edu), which was in preliminary form prior to the grant. This site, which includes several model codes treating different XPT conditions, is an effective means to transfer our technologies and is used by the geothermal community and other researchers worldwide. Our models have wide application to many energy related and other important problems (e.g., scaling prediction in petroleum production systems, stripping towers for mineral production processes, nuclear waste storage, CO2 sequestration strategies, global warming). Although funding decreases cut short completion of several research activities, we made significant progress on these abbreviated projects.

  12. Meeting the Demand for Biofuels: Impact on Land Use and Carbon Mitigation

    SciTech Connect (OSTI)

    Khanna, Madhu; Jain, Atul; Onal, Hayri; Scheffran, Jurgen; Chen, Xiaoguang; Erickson, Matt; Huang, Haixiao; Kang, Seungmo.

    2011-08-14T23:59:59.000Z

    The purpose of this research was to develop an integrated, interdisciplinary framework to investigate the implications of large scale production of biofuels for land use, crop production, farm income and greenhouse gases. In particular, we examine the mix of feedstocks that would be viable for biofuel production and the spatial allocation of land required for producing these feedstocks at various gasoline and carbon emission prices as well as biofuel subsidy levels. The implication of interactions between energy policy that seeks energy independence from foreign oil and climate policy that seeks to mitigate greenhouse gas emissions for the optimal mix of biofuels and land use will also be investigated. This project contributes to the ELSI research goals of sustainable biofuel production while balancing competing demands for land and developing policy approaches needed to support biofuel production in a cost-effective and environmentally friendly manner.

  13. The interactive effects of pH, surface tension, and solution density for flotation systems for separation of equivalent-density materials: separation of ABS from HIPS

    SciTech Connect (OSTI)

    Karvelas, D.E.; Jody, B.J.; Pomykala, J.A.; Daniels, E.J.

    1996-07-01T23:59:59.000Z

    This paper presents the results of research being conducted at Argonne National Laboratory, to develop a cost-effective and environmentally acceptable process for the separation of high-value plastics from discarded household appliances. The process under development has separated high-purity (greater than 99.5%) acrylonitrile-butadiene-styrene (ABS) and high-impact polystyrene (HIPS) from commingled plastics generated by appliance-shredding and metal recovery operations. Plastics of similar densities, such as ABS and HIPS are further separated by using a chemical solution. By controlling the surface tension, the density and the temperature of the chemical solution, we are able to selectively float/separate plastics that have equivalent densities. In laboratory-scale tests, this technique has proven highly effective in recovering high-purity plastics materials from discarded household appliances and other obsolete durable goods. A pilot plant is under construction to demonstrate and assess the technical and economic performance of this process. In this paper, we examine the technical and economic issues that affect the recovery and separation of plastics and provide an update on Argonne`s plastics separation research and development activities.

  14. RESTORING SUSTAINABLE FORESTS ON APPALACHIAN MINED LANDS FOR WOOD PRODUCTS, RENEWABLE ENERGY, CARBON SEQUESTRATION, AND OTHER ECOSYSTEM SERVICES

    SciTech Connect (OSTI)

    Jonathan Aggett

    2003-12-15T23:59:59.000Z

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. In this segment of work, our goal was to review methods for estimating tree survival, growth, yield and value of forests growing on surface mined land in the eastern coalfields of the USA, and to determine the extent to which carbon sequestration is influenced by these factors. Public Law 95-87, the Surface Mining Control and Reclamation Act of 1977 (SMCRA), mandates that mined land be reclaimed in a fashion that renders the land at least as productive after mining as it was before mining. In the central Appalachian region, where prime farmland and economic development opportunities for mined land are scarce, the most practical land use choices are hayland/pasture, wildlife habitat, or forest land. Since 1977, the majority of mined land has been reclaimed as hayland/pasture or wildlife habitat, which is less expensive to reclaim than forest land, since there are no tree planting costs. As a result, there are now hundreds of thousands of hectares of grasslands and scrublands in various stages of natural succession located throughout otherwise forested mountains in the U.S. A literature review was done to develop the basis for an economic feasibility study of a range of land-use conversion scenarios. Procedures were developed for both mixed hardwoods and white pine under a set of low product prices and under a set of high product prices. Economic feasibility is based on land expectation values. Further, our review shows that three types of incentive schemes might be important: (1) lump sum payment at planting (and equivalent series of annual payments); (2) revenue incentive at harvest; and (3) benefit based on carbon volume.

  15. Texas Uranium Exploration, Surface Mining, and Reclamation Act (Texas)

    Broader source: Energy.gov [DOE]

    The Railroad Commission of Texas is the regulatory authority for uranium surface mining. Law authorizes the Commission to assure that reclamation of mining sites is possible, to protect land owners...

  16. Phosphine-stabilised Au{sub 9} clusters interacting with titania and silica surfaces: The first evidence for the density of states signature of the support-immobilised cluster

    SciTech Connect (OSTI)

    Andersson, Gunther G., E-mail: gunther.andersson@flinders.edu.au, E-mail: vladimir.golovko@canterbury.ac.nz, E-mail: greg.metha@adelaide.edu.au; Al Qahtani, Hassan S. [Flinders Centre for NanoScale Science and Technology, Flinders University, Adelaide SA 5001 (Australia); Golovko, Vladimir B., E-mail: gunther.andersson@flinders.edu.au, E-mail: vladimir.golovko@canterbury.ac.nz, E-mail: greg.metha@adelaide.edu.au [Flinders Centre for NanoScale Science and Technology, Flinders University, Adelaide SA 5001 (Australia); The MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Christchurch 8140 (New Zealand); Alvino, Jason F.; Bennett, Trystan; Wrede, Oliver; Mejia, Sol M.; Metha, Gregory F., E-mail: gunther.andersson@flinders.edu.au, E-mail: vladimir.golovko@canterbury.ac.nz, E-mail: greg.metha@adelaide.edu.au [Department of Chemistry, University of Adelaide, Adelaide SA 5005 (Australia); Adnan, Rohul [The MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Christchurch 8140 (New Zealand); Chemistry Department, University of Malaya, 50603 Kuala Lumpur (Malaysia); Gunby, Nathaniel; Anderson, David P. [The MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Christchurch 8140 (New Zealand)

    2014-07-07T23:59:59.000Z

    Chemically made, atomically precise phosphine-stabilized clusters Au{sub 9}(PPh{sub 3}){sub 8}(NO{sub 3}){sub 3} were deposited on titania and silica from solutions at various concentrations and the samples heated under vacuum to remove the ligands. Metastable induced electron spectroscopy was used to determine the density of states at the surface, and X-ray photoelectron spectroscopy for analysing the composition of the surface. It was found for the Au{sub 9} cluster deposited on titania that the ligands react with the titania substrate. Based on analysis using the singular value decomposition algorithm, the series of MIE spectra can be described as a linear combination of 3 base spectra that are assigned to the spectra of the substrate, the phosphine ligands on the substrate, and the Au clusters anchored to titania after removal of the ligands. On silica, the Au clusters show significant agglomeration after heat treatment and no interaction of the ligands with the substrate can be identified.

  17. Renewable Energy Development on Tribal Lands

    SciTech Connect (OSTI)

    Not Available

    2006-10-01T23:59:59.000Z

    Brochure describes the Tribal Energy Program, which provides American Indian tribes with financial and technical assistance for developing renewable energy projects on tribal land.

  18. Land and Renewable Resources | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a rich and thorough analysis to determine what areas of public lands are best suited for solar, wind, and geothermal project development and assess the associated environmental,...

  19. Albeni Falls land acquisitions.indd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Idaho The Bonneville Power Administration is working with the Idaho Department of Fish and Game to acquire and manage two parcels of land in northern Idaho to preserve,...

  20. Global Biofuels Modeling and Land Use

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biofuels Modeling and Land Use DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Strategic Analysis & Cross-cutting Sustainability March 25 2015 Gbadebo Oladosu...

  1. Landholders, Residential Land Conversion, and Market Signals

    E-Print Network [OSTI]

    Margulis, Harry L.

    2006-01-01T23:59:59.000Z

    465– Margulis: Landholders, Residential Land Conversion, and1983. An Analysis of Residential Developer Location FactorsHow Regulation Affects New Residential Development. New

  2. Sustainable Land Management in Northern Namibia

    E-Print Network [OSTI]

    and low water holding capacity (Bolivia) #12;Perspective Similar soil (Kavango) #12;Increased Demand for Food + Energy Production Expansion onto Less Resilient Lands Reduced Production per Unit Area

  3. Title: Canada Land Inventory: Land Capability for Waterfowl Wildlife Data Creator /

    E-Print Network [OSTI]

    Title: Canada Land Inventory: Land Capability for Waterfowl Wildlife Data Creator / Copyright Owner: National Archives of Canada, Visual and Sound Archives Division Publisher: National Archives of Canada, Visual and Sound Archives Division; developed under the auspices of Environment Canada; distributed

  4. Modeling the effect of land cover land use change on estuarine environmental flows 

    E-Print Network [OSTI]

    Sahoo, Debabrata

    2009-05-15T23:59:59.000Z

    Environmental flows are important to maintain the ecological integrity of the estuary. In a watershed, it is influenced by land use land cover (LULC) change, climate variability, and water regulations. San Antonio, Texas, ...

  5. Land application of thin stillage from a grain sorghum feedstock 

    E-Print Network [OSTI]

    Jenkins, Joseph Wendell

    1985-01-01T23:59:59.000Z

    Committee; Dr. John M. Sweeten Thin sti 1 1 age is the wastewater from alcohol production after the wet solids have been separated from the waste- water stream. Because of thin sti 1 1 age's high organic content, it may be utilized in a land application... system. Thin sti 1 1 age from a grain sorghum feedstock was applied to crops in the field and greenhouse using sprinkler and surface irrigation methods. Application rates varied from 150 to 593 m stil lage/ha-yr, adding 334 to 1040 kg N/ha- yr. Soil...

  6. Exploring the interaction between lithium ion and defective graphene...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies. Exploring the interaction between lithium ion and defective...

  7. Water Consumption Footprint and Land Requirements of Large-Scale Alternative

    E-Print Network [OSTI]

    on crude oil and the greenhouse gas intensity of transportation. However, the water and land resource-Tropsch MD from natural gas and coal; fermentation and advanced fermentation MD to: discover new interactions among natural and human climate system components; objectively assess

  8. Land Reform and Exclusion of Poor Jagat Basnet

    E-Print Network [OSTI]

    Richner, Heinz

    141 CHAPTER 6 Land Reform and Exclusion of Poor People Jagat Basnet 6.1 Land Questions Firstly, by land reform, it is widely understood to be a process of confiscating someone's land and award Planning Commission (NPC). Land reform is an important factor for improving the economic status

  9. How emissions, climate, and land use change will impact mid-century air quality over the United States: a focus on effects at national parks

    E-Print Network [OSTI]

    Val Martin, M.

    We use a global coupled chemistry–climate–land model (CESM) to assess the integrated effect of climate, emissions and land use changes on annual surface O[subscript 3] and PM[subscript 2.5] in the United States with a focus ...

  10. Global land cover mapping from MODIS: algorithms and early results M.A. Friedl a,*, D.K. McIver a

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    for Remote Sensing, Boston University, 675 Commonwealth Avenue, Boston, MA 02215, USA b Conservation, and radiometric attributes provides significant new opportunities and challenges for remote sensing-based land characteristics of the land surface influence sur- face­atmosphere fluxes of sensible heat, latent heat

  11. 22LRO Explores the Apollo 12 Landing Area on the Moon NASA's Lunar Reconnaissance Orbiter (LRO) from a lunar orbit of 21 kilometers (13

    E-Print Network [OSTI]

    22LRO Explores the Apollo 12 Landing Area on the Moon NASA's Lunar Reconnaissance Orbiter (LRO of the Apollo 12 landing site. Images show the twists and turns of the paths made when the astronauts explored the lunar surface. One of the details that shows up is a bright L-shape in the Apollo 12 image. It marks

  12. Land Tenure Center 50th Anniversary Celebration

    E-Print Network [OSTI]

    Sheridan, Jennifer

    + implementation. Jon Unruh will summarize land tenure obstacles to the implementation of carbon sequestration that clarifying tenure and carbon rights will be necessary for effective REDD+ implementation. REDD stands 2011 Madison workshop on Land Tenure and Forest Carbon Management. Barney Barnes will summarize

  13. 21 Sustainable Land Management and Global Development

    E-Print Network [OSTI]

    Richner, Heinz

    427 21 Sustainable Land Management and Global Development: Factors Affecting Land Users' Efforts for Sustainable Development: Foundations, Experiences, and Perspectives 428 North-South perspectives 21 the concept of sustainable develop- ment and a clearer focus on operational implications, Hurni and colleagues

  14. Biofuels and indirect land use change

    E-Print Network [OSTI]

    Biofuels and indirect land use change The case for mitigation October 2011 #12;About this study), Malaysian Palm Oil Board, National Farmers Union, Novozymes, Northeast Biofuels Collaborative, Patagonia Bio contributed views on a confidential basis. #12;1Biofuels and indirect land use change The case for mitigation

  15. Practice Note Planning for brownfield land

    E-Print Network [OSTI]

    Practice Note Planning for brownfield land regeneration to woodland and wider green infrastructure 1FCPN022 Gail Atkinson and Kieron Doick March 2014 The regeneration of brownfield land to green of brownfield regeneration to woodland in order to inform project planning, raise awareness of lessons learnt

  16. APOLLO MANNED LUNAR LANDING SCIENTIFIC EXPERIMENT PROPOSAL

    E-Print Network [OSTI]

    Rathbun, Julie A.

    APOLLO MANNED LUNAR LANDING SCIENTIFIC EXPERIMENT PROPOSAL GEOLOGICAL FIELD INVESTIGATION IN EARLY APOLLO MANNED LUNAR LANDING MISSIONS Abstract and Techi~icalSection E. M.Shoemaker, U. S-investigator November 1965 #12;APOLLO MANNED 1,UNAR I,ANDING SCIENTIFIC EXPERIMENT PROPOSAL GEOLOGICAL FIETADINi

  17. Heilougjiang adopts measures to strengthen land management-each square millimeter of land is utterly cherished and rationally used

    SciTech Connect (OSTI)

    Tan Peiquan; Liu, Y.

    1983-07-30T23:59:59.000Z

    This article reports on how a Chinese province with a large area of land and a small population has adopted a series of measures to strengthen land management, to stop the illegal occupying of land, and to protect land resources. Investigations of land resources and of the state of land use, as well as soil surveys, have been launched in order to determine the rights of land ownership and use. Many counties and cities have experimented with dividing farm areas into districts and comprehensive land planning, established land files, trained key personnel in land management skills, and have launched scientific land research. Illegal occupation, waste and destruction of land have risen with the increase in population and construction. Per capita cultivated acreage has declined to 4.1 mu. An effort has been made to reach the people in urban and rural areas with this message: ''Cherish every square millimeter of land utterly and use it rationally''.

  18. Surface Soil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Surface Soil Surface Soil We compare local soil samples with samples collected from northern New Mexico locations that are beyond the range of potential influence from normal...

  19. Human spatial orientation perceptions during simulated lunar landing

    E-Print Network [OSTI]

    Clark, Torin Kristofer

    2010-01-01T23:59:59.000Z

    During crewed lunar landings, astronauts are expected to guide a stable and controlled descent to a landing zone that is level and free of hazards by either making landing point (LP) redesignations or taking direct manual ...

  20. Fitting coupled potential energy surfaces for large systems: Method and construction of a 3-state representation for phenol photodissociation in the full 33 internal degrees of freedom using multireference configuration interaction determined data

    SciTech Connect (OSTI)

    Zhu, Xiaolei, E-mail: virtualzx@gmail.com; Yarkony, David R., E-mail: yarkony@jhu.edu [Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

    2014-01-14T23:59:59.000Z

    A recently reported algorithm for representing adiabatic states coupled by conical intersections using a quasi-diabatic state Hamiltonian in four and five atom systems is extended to treat nonadiabatic processes in considerably larger molecules. The method treats all internal degrees of freedom and uses electronic structure data from ab initio multireference configuration interaction wave functions with nuclear configuration selection based on quasi-classical surface hopping trajectories. The method is shown here to be able to treat ?30 internal degrees of freedom including dissociative and large amplitude internal motion. Two procedures are introduced which are essential to the algorithm, a null space projector which removes basis functions from the fitting process until they are needed and a partial diagonalization technique which allows for automated, but accurate, treatment of the vicinity of extended seams of conical intersections of two or more states. These procedures are described in detail. The method is illustrated using the photodissociaton of phenol, C{sub 6}H{sub 5}OH(X{sup ~1}A{sup ?}) + hv ? C{sub 6}H{sub 5}OH(A{sup ~1}A{sup ?}, B{sup ~1}A{sup ??}) ? C{sub 6}H{sub 5}O(X{sup ~2}B{sub 1}, A{sup ~2}B{sub 2}) + H as a test case. Ab initio electronic structure data for the 1,2,3{sup 1}A states of phenol, which are coupled by conical intersections, are obtained from multireference first order configuration interaction wave functions. The design of bases to simultaneously treat large amplitude motion and dissociation is described, as is the ability of the fitting procedure to smooth the irregularities in the electronic energies attributable to the orbital changes that are inherent to nonadiabatic processes.

  1. Waste Isolation Pilot Plant, Land Management Plan

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    To reflect the requirement of section 4 of the Wastes Isolation Pilot Plant Land Withdrawal Act (the Act) (Public Law 102-579), this land management plan has been written for the withdrawal area consistent with the Federal Land Policy and Management Act of 1976. The objective of this document, per the Act, is to describe the plan for the use of the withdrawn land until the end of the decommissioning phase. The plan identifies resource values within the withdrawal area and promotes the concept of multiple-use management. The plan also provides opportunity for participation in the land use planning process by the public and local, State, and Federal agencies. Chapter 1, Introduction, provides the reader with the purpose of this land management plan as well as an overview of the Waste Isolation Pilot Plant. Chapter 2, Affected Environment, is a brief description of the existing resources within the withdrawal area. Chapter 3, Management Objectives and Planned Actions, describes the land management objectives and actions taken to accomplish these objectives.

  2. Green Infrastructure and Flood Resiliency-Land Use Management...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Infrastructure and Flood Resiliency-Land Use Management as an Adaptation Strategy in the Built Environment Green Infrastructure and Flood Resiliency-Land Use Management as an...

  3. Pollution on the Federal Lands II: Water Pollution Law

    E-Print Network [OSTI]

    Glicksman, Robert L.

    1993-01-01T23:59:59.000Z

    text. FEDERAL LANDS WATER POLLUTION nonpoint sources. 19Comment, Nonpoint Source Pollution, Groundwater, and theat 622. FEDERAL LANDS WATER POLLUTION The third requirement,

  4. arid land: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and indirect land use change The case for mitigation 359 Practice Note Planning for brownfield land Renewable Energy Websites Summary: space can deliver multiple benefits to...

  5. Quantifying turbidity current interactions with topography

    E-Print Network [OSTI]

    Straub, Kyle M

    2007-01-01T23:59:59.000Z

    This thesis advances our understanding of how transport properties of turbidity currents are mediated by interactions with seafloor topography, specifically channelized surfaces. Turbidity currents are responsible for ...

  6. Making land fly : the institutionalization of China's land quota markets and its implications for urbanization, property rights, and intergovernmental politics

    E-Print Network [OSTI]

    Xiao, Yuan, Ph. D. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    This dissertation investigates China's land quota markets, a recent land policy innovation that virtually transfers urbanization permission from the countryside to cities. To circumvent national government's quota restrictions ...

  7. Marine Habitats and Land Use (Virginia)

    Broader source: Energy.gov [DOE]

    The Virginia Marine Resources Commission has jurisdiction over submerged lands off the state's coast and in inland rivers and streams, wetlands and tidal wetlands, coastal sand dunes and beaches,...

  8. Biomass Energy and Competition for Land

    E-Print Network [OSTI]

    Reilly, John

    We describe an approach for incorporating biomass energy production and competition for land into the MIT Emissions Prediction and Policy Analysis (EPPA) model, a computable general equilibrium model of the world economy, ...

  9. LAND USE AND WATER QUALITY MANAGEMENT

    E-Print Network [OSTI]

    #12;LAND USE AND WATER QUALITY MANAGEMENT IN THE BRIDGE CREEK BASIN Prepared for: Water Quality ............................................. DESCRIPTION OF BRIDGE CREEK BASIN ........................ PHYSICAL SETTING'T. ................................ 5.1 CUMULATIVE IMPACTS ....................................... 5.1.1 Bridge Creek basin upstream

  10. Hydroelectric Resources on State Lands (Montana)

    Broader source: Energy.gov [DOE]

    This chapter authorizes the leasing of state lands for the development of hydroelectric resources. It provides regulations for the granting and duration of leases, as well as for the inspection of...

  11. Management and Use of Public Lands (Virginia)

    Broader source: Energy.gov [DOE]

    The Virginia Department of Conservation and Recreation may elect to lease its lands for the development of mineral interests (defined herein as petroleum, natural gas, coal, ore, rock and any other...

  12. Land Assemblage Tax Credit Program (Missouri)

    Broader source: Energy.gov [DOE]

    The Land Assemblage Tax Credit Programs the redevelopment of blighted areas in Missouri into productive use. Redevelopers must incur acquisition costs for at least 50 acres of 75+ acre parcels,...

  13. A framework for benchmarking land models

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    their inclu- sion in Earth system models (ESMs). State-of-land models cou- pled to Earth system models should simulateland models within Earth system models, however, can help

  14. Land and its uses - actual and potential

    SciTech Connect (OSTI)

    Last, F.T.; Bell, B.G.; Holz, M.C.B.

    1986-01-01T23:59:59.000Z

    This book discusses information on the following topics: identification of ecological factors characterizing the range of terrestrial habitats (urban, rural); land classifications; water resources; conservation and landscape; remote sensing; and case studies.

  15. Wilderness designation of Bureau of Land Management lands and impacts on the availability of energy resources

    SciTech Connect (OSTI)

    Oakes, E.H.; Voelker, A.H.

    1983-02-01T23:59:59.000Z

    In 1964 Congress mandated the establishment of the National Wilderness Preservation System - a collection of federal lands dedicated to the preservation of selected parts of our once vast wilderness. Because wilderness management precludes many traditional land uses, controversy has plagued the efforts of land-management agencies to select and recommend areas for wilderness inclusion. This study examines potential impacts on the supply of energy resources from the possible withdrawal by the Bureau of Land Management (BLM) of some part of the 24.3 million acres of public lands now under study for inclusion in the wilderness system. Except for uranium, the energy-resource potential of the total WSA-acreage is low. Wilderness designation of some WSAs is therefore not expected to cause serious impacts on the future availability of energy resources. Because the significance of land withdrawals by the BLM will depend to some extent on the availability of other federal lands for mineral activities, an up-to-date estimate of the current and future status-of-access to western federal lands for mineral activities was prepared. Overall conclusions of the report are that (1) the inclusion of some BLM land in the National Wilderness Preservation System will not interfere with the nation's required supply of energy resources, (2) there is sufficient federal land currently available in the West for mineral activities, (3) the availability of western federal land for mineral activities will increase in the future, (4) the administration should continue to support the major land-review programs, and (5) the administration should accelerate the review process for WSAs in regions that have a high energy-resource potential.

  16. MARS IN A MINUTE: How Do You Land on Mars? How do you land on Mars?

    E-Print Network [OSTI]

    to land safely! Here are some options: 1. With a small- to mid-size rover, use a cushion of airbags along

  17. agricultural land based: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Preparing a Conservation Plan INTRODUCTION Conservation of land, water and other natural features. Examples of goals...

  18. 23LRO -The Relative Ages of Lunar Surfaces We have all sees pictures of craters on the moon. The images on the

    E-Print Network [OSTI]

    . The images on the next two pages show close-up views of the cratered lunar surface near the Apollo 15 and Apollo 11 landing areas. They were taken by NASA's Lunar Reconnaissance Orbiter (LRO) from an orbit Apollo-11 landed in a relatively younger or older region than Apollo 15! This is the Apollo-15 landing

  19. Interaction of wide-band-gap single crystals with 248-nm excimer laser irradiation. X. Laser-induced near-surface absorption in single-crystal NaCl

    E-Print Network [OSTI]

    Dickinson, J. Thomas

    are expected to play an important role in optical break- down and surface damage. II. EXPERIMENT The results of a few thousand kelvin even in the absence of visible surface damage. The origin of the laser absorption radiation. As much as 20% of the incident radiation at 248 nm must be absorbed in the near-surface region

  20. Land Tenure and Land Administration Issues in Guatemala Danielle Kelly Donovan

    E-Print Network [OSTI]

    Onsrud, Harlan J.

    Civilization's hierarchical system and the Spanish exploitation. The Mayan Civilization involved communally by Mexico, on the southeast by Honduras and El Salvador, and on the southwest by the Pacific Ocean in 1523 lead to ruthless exploitation of Mayan land. Geography, amount and accessibility of arable land

  1. Neutrino Properties Before and After KamLAND

    E-Print Network [OSTI]

    S. Pakvasa; J. W. F. Valle

    2003-02-05T23:59:59.000Z

    We review neutrino oscillation physics, including the determination of mass splittings and mixings from current solar, atmospheric, reactor and accelerator neutrino data. A brief discussion is given of cosmological and astrophysical implications. Non-oscillation phenomena such as neutrinoless double beta decay would, if discovered, probe the absolute scale of neutrino mass and also reveal their Majorana nature. Non-oscillation descriptions in terms of spin-flavor precession (SFP) and non-standard neutrino interactions (NSI) currently provide an excellent fit of the solar data. However they are at odds with the first results from the KamLAND experiment which imply that, despite their theoretical interest, non-standard mechanisms can only play a sub-leading role in the solar neutrino anomaly. Accepting the LMA-MSW solution, one can use the current solar neutrino data to place important restrictions on non-standard neutrino properties, such as neutrino magnetic moments. Both solar and atmospheric neutrino data can also be used to place constraints on neutrino instability as well as the more exotic possibility of $CPT$ and Lorentz Violation. Weillustrate the potential of future data from experiments such as KamLAND, Borexino and the upcoming neutrino factories in constraining non-standard neutrino properties.

  2. Impalement transitions in droplets impacting microstructured superhydrophobic surfaces

    E-Print Network [OSTI]

    J. Hyväluoma; J. Timonen

    2008-07-29T23:59:59.000Z

    Liquid droplets impacting a superhydrophobic surface decorated with micro-scale posts often bounce off the surface. However, by decreasing the impact velocity droplets may land on the surface in a fakir state, and by increasing it posts may impale droplets that are then stuck on the surface. We use a two-phase lattice-Boltzmann model to simulate droplet impact on superhydrophobic surfaces, and show that it may result in a fakir state also for reasonable high impact velocities. This happens more easily if the surface is made more hydrophobic or the post height is increased, thereby making the impaled state energetically less favourable.

  3. Constructing use in surface parking lots : strategies for enhancing lots as part-time public spaces

    E-Print Network [OSTI]

    Ziegenfuss, Kathleen Kane

    2009-01-01T23:59:59.000Z

    Surface parking lots occupy vast amounts of land in urbanized areas-at times covering up to 40% of land in downtown areas in the United States. It is estimated that there are seven parking spaces for every vehicle in the ...

  4. Recent Trends in Land Tenure in Texas.

    E-Print Network [OSTI]

    Motheral, Joe

    1944-01-01T23:59:59.000Z

    colored; in Harrison County, 70 per cent; in Gregg County, 60 per cent; in San Jacinto County, 57 per cent; and in Walker County, 51 per cent. Almost one-third of the farm operators in counties along the lower reaches of the Colorado and Brazos rivers...RECENT TRENDS IN LAND TENURE IN TEXAS JOE MOTHERAL Division of Farm and Ranch Economics [Blank Page in Original Bulletin] Public interest in the subject of land tenure has been height- ened by the swift changes, in the tenure pattern...

  5. Notes on Fridge Surfaces Laurel Swan

    E-Print Network [OSTI]

    Hunt, Galen

    a preliminary examination of refrigerator surfaces. The use and organiza- tion of items on fridge surfaces life, ethnography, interactive surfaces, refrigerators, magnets. ACM Classification Keywords H5.m, much talk has been bandied about concerning the importance of refrigerators in home life. Refrigerators

  6. Theoretical studies of molecular interactions

    SciTech Connect (OSTI)

    Lester, W.A. Jr. [Univ. of California, Berkeley (United States)

    1993-12-01T23:59:59.000Z

    This research program is directed at extending fundamental knowledge of atoms and molecules including their electronic structure, mutual interaction, collision dynamics, and interaction with radiation. The approach combines the use of ab initio methods--Hartree-Fock (HF) multiconfiguration HF, configuration interaction, and the recently developed quantum Monte Carlo (MC)--to describe electronic structure, intermolecular interactions, and other properties, with various methods of characterizing inelastic and reaction collision processes, and photodissociation dynamics. Present activity is focused on the development and application of the QMC method, surface catalyzed reactions, and reorientation cross sections.

  7. Ecological perspectives of land use history: The Arid Lands Ecology (ALE) Reserve

    SciTech Connect (OSTI)

    Hinds, N R; Rogers, L E

    1991-07-01T23:59:59.000Z

    The objective of this study was to gather information on the land use history of the Arid Land Ecology (ALE) Reserve so that current ecological research could be placed within a historical perspective. The data were gathered in the early 1980s by interviewing former users of the land and from previously published research (where available). Interviews with former land users of the ALE Reserve in Benton County, Washington, revealed that major land uses from 1880 to 1940 were homesteading, grazing, oil/gas production, and road building. Land use practices associated with grazing and homesteading have left the greatest impact on the landscape. Disturbed sites where succession is characterized by non-native species, plots where sagebrush was railed away, and sheep trails are major indications today of past land uses. Recent estimates of annual bunchgrass production do ALE do not support the widespread belief that bunchgrass were more productive during the homesteading era, though the invasion of cheatgrass (Bromus tectorum), Jim Hill mustard (Sisymbrium altissium), and other European alien plant species has altered pre-settlement succession patterns. 15 refs., 6 figs., 1 tab.

  8. The mutagenic potential of soil and runoff water from land treatment of three hazardous industrial wastes 

    E-Print Network [OSTI]

    Davol, Phebe

    1987-01-01T23:59:59.000Z

    (EPA, 1983). Land tr eatment may be a viable disposal alternative for many petroleum based hazardous wastes. This technology involves the controlled incorporation of wastes into the surface layer of soil resulting in degradation, immobilization... increased as the waste degraded, but began to decrease by the end of the study. Although the mechanism to explain this phenomena is unknown, it is possible that non-mutagenic compounds in the waste may have degraded into mutagenic compounds...

  9. Do Firms Interact Strategically? A Structural Model of the Multi-Stage Investment Timing Game

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    interactions take place on U.S. federal lands in the Gulf of Mexico. In particular, it analyzes whether a firm, Ariel Pakes, Jack Porter, Juan Robalino, Stephen Ryan, M ichael Springborn, Jam es Stock, Stephen Weinb

  10. MoistureMap: A soil moisture monitoring, prediction and reporting system for sustainable land and water management

    E-Print Network [OSTI]

    Walker, Jeff

    9 MoistureMap: A soil moisture monitoring, prediction and reporting system for sustainable land soil moisture monitoring, prediction and reporting system (MoistureMap) for Australia uncertainty at 1km resolution, by assimilating (i) low-resolution passive microwave-derived surface soil

  11. EA-1779: Proposed Changes to the Sanitary Biosolids Land Application Program on the Oak Ridge Reservation, Oak Ridge, Tennessee

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to amend (e.g., by changing setback requirements from surface water features and potential channels to groundwater) the Sanitary Biosolids Land Application Program at the Oak Ridge Reservation in Oak Ridge, Tennessee.

  12. Center for Environmental Management of Military Lands

    E-Print Network [OSTI]

    for professionalism and hard work. Sincerely, Dr. Lee Barber, Director Center for Environmental Management of MilitaryCenter for Environmental Management of Military Lands 1490 Campus Delivery Fort Collins, Colorado extent been due to our ability to address our sponsors' natural and cultural resource management

  13. www.publiclandsday.org Public Lands Program

    E-Print Network [OSTI]

    US Army Corps of Engineers

    awareness of local public lands and issues #12;www.publiclandsday.org Facebook.com - Fan Page http://www.facebook.com/pages/create.php #12;www.publiclandsday.org Facebook Fan Page http://www.facebook.com/pages/create.php #12;www.publiclandsday.org Facebook Fan Page #12;www.publiclandsday.org Facebook Fan Page #12;www.publiclandsday.org Facebook Event

  14. Mitigating climate change through land use

    E-Print Network [OSTI]

    Watson, Andrew

    , offsetting the use of fossil fuels and reducing carbon emissions. Avoiding deforestation, increasing plant storage through afforestation or plant management, and substituting bioenergy for fossil fuels all use increasing deforestation by increasing demand for crop land, undermining the primary GHG emissions reduction

  15. Purdue extension PurdueLandUseTeam

    E-Print Network [OSTI]

    Purdue extension Val Slack Jon Cain Co-Chairs, PurdueLandUseTeam PurdueUniversity ID-351 CAFOs. The role of the Agricultural & Natural Resources (ANR) Educator as a plan commission member is to help plan and natural resources and provide insight into the impact on these two areas when there are proposed changes

  16. Environment and Land in Bushbuckridge, South Africa

    E-Print Network [OSTI]

    Environment and Land in Bushbuckridge, South Africa © 2002, Professor Robert Thornton Department of Anthropology University of the Witwatersrand, Johannesburg, South Africa Acknowledgements: Research), and by the Centre for Science Development, Human Sciences Research Council, Pretoria, South Africa. Printed:24 April

  17. Land Use Baseline Report Savannah River Site

    SciTech Connect (OSTI)

    Noah, J.C.

    1995-06-29T23:59:59.000Z

    This document is to serve as a resource for Savannah River Site managers, planners, and SRS stakeholders by providing a general description of the site and land-use factors important to future use decisions and plans. The intent of this document is to be comprehensive in its review of SRS and the surrounding area.

  18. Arid Lands Ecology Facility management plan

    SciTech Connect (OSTI)

    None

    1993-02-01T23:59:59.000Z

    The Arid Lands Ecology (ALE) facility is a 312-sq-km tract of land that lies on the western side of the Hanford Site in southcentral Washington. The US Atomic Energy Commission officially set aside this land area in 1967 to preserve shrub-steppe habitat and vegetation. The ALE facility is managed by Pacific Northwest Laboratory (PNL) for the US Department of Energy (DOE) for ecological research and education purposes. In 1971, the ALE facility was designated the Rattlesnake Hills Research Natural Area (RNA) as a result of an interagency federal cooperative agreement, and remains the largest RNA in Washington. it is also one of the few remaining large tracts of shrub-steppe vegetation in the state retaining a predominant preeuropean settlement character. This management plan provides policy and implementation methods for management of the ALE facilities consistent with both US Department of Energy Headquarters and the Richland Field Office decision (US Congress 1977) to designate and manage ALE lands as an RNA and as a component of the DOE National Environmental Research Park System.

  19. Bureau of Land Management Oil Shale Development

    E-Print Network [OSTI]

    Utah, University of

    Bureau of Land Management Oil Shale Development Unconventional Fuels Conference University of Utah May 17, 2011 #12;#12;Domestic Oil Shale Resources Primary oil shale resources in the U.S. are in the Green River Formation in Wyoming, Utah, and Colorado. 72 % of this oil shale resource is on Federal

  20. Climate Effects of Global Land Cover Change

    SciTech Connect (OSTI)

    Gibbard, S G; Caldeira, K; Bala, G; Phillips, T; Wickett, M

    2005-08-24T23:59:59.000Z

    There are two competing effects of global land cover change on climate: an albedo effect which leads to heating when changing from grass/croplands to forest, and an evapotranspiration effect which tends to produce cooling. It is not clear which effect would dominate in a global land cover change scenario. We have performed coupled land/ocean/atmosphere simulations of global land cover change using the NCAR CAM3 atmospheric general circulation model. We find that replacement of current vegetation by trees on a global basis would lead to a global annual mean warming of 1.6 C, nearly 75% of the warming produced under a doubled CO{sub 2} concentration, while global replacement by grasslands would result in a cooling of 0.4 C. These results suggest that more research is necessary before forest carbon storage should be deployed as a mitigation strategy for global warming. In particular, high latitude forests probably have a net warming effect on the Earth's climate.

  1. Land and Atmospheric Science GRAD STUDENT HANDBOOK

    E-Print Network [OSTI]

    Minnesota, University of

    , transport, and fate of pollutants in soil, air, and water; improving and protecting land, air, and water, Policy and Management Agricultural Industries and Marketing The Department occupies the entire Soil are predominantly occupied by Soil Morphology and Genesis, Environmental Biophysics, and Atmospheric Sciences, plus

  2. Surface Meteorology, Barrow, Alaska, Area A, B, C and D, Ongoing from 2012

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Hinzman, Larry; Busey, Bob; Cable, William; Romanovsky, Vladimir

    Meteorological data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are also useful as inputs into modeling activities.

  3. Surface Meteorology, Barrow, Alaska, Area A, B, C and D, Ongoing from 2012

    SciTech Connect (OSTI)

    Hinzman, Larry; Busey, Bob; Cable, William; Romanovsky, Vladimir

    2014-12-04T23:59:59.000Z

    Meteorological data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are also useful as inputs into modeling activities.

  4. Acquiring Land Use Rights in Today's China: A Snapshot from on the Ground

    E-Print Network [OSTI]

    Stein, Gregory M.

    2006-01-01T23:59:59.000Z

    the effectiveness of land reclamation, noting that reclaimedand that reclamation of marginally fertile land may havereclamation process as "turning mud into agri- cultural land."

  5. Dike/Drift Interactions

    SciTech Connect (OSTI)

    E. Gaffiney

    2004-11-23T23:59:59.000Z

    This report presents and documents the model components and analyses that represent potential processes associated with propagation of a magma-filled crack (dike) migrating upward toward the surface, intersection of the dike with repository drifts, flow of magma in the drifts, and post-magma emplacement effects on repository performance. The processes that describe upward migration of a dike and magma flow down the drift are referred to as the dike intrusion submodel. The post-magma emplacement processes are referred to as the post-intrusion submodel. Collectively, these submodels are referred to as a conceptual model for dike/drift interaction. The model components and analyses of the dike/drift interaction conceptual model provide the technical basis for assessing the potential impacts of an igneous intrusion on repository performance, including those features, events, and processes (FEPs) related to dike/drift interaction (Section 6.1).

  6. Development of the Flux-Adjusting Surface Data Assimilation System for Mesoscale Models

    E-Print Network [OSTI]

    Niyogi, Dev

    Development of the Flux-Adjusting Surface Data Assimilation System for Mesoscale Models KIRAN and temperature and for surface air temperature and water vapor mixing ratio for mesoscale models. In the FASDAS-field variables. The FASDAS is coupled to a land surface submodel in a three-dimensional mesoscale model and tests

  7. Interactive Environments

    E-Print Network [OSTI]

    project assignment of an interactive social space, built up from autonomously operating smart building, interactive spaces in which people and buildings engage in a mutual relationship with one other. By connecting the data and experiences that develop though this relationship between buildings and their inhabitants

  8. Resource Management Services: Land Use, Part 501: Use of Flood Control Lands (New York)

    Broader source: Energy.gov [DOE]

    No regulated activity or development is allowed to take place on lands used for flood control purposes unless a permit is obtained. These regulations describe provisions for the application,...

  9. Developing Lunar Landing Vehicle Display Requirements through Content Analysis of Apollo Lunar Landing Voice Communications

    E-Print Network [OSTI]

    Smith, C. A.

    2008-01-01T23:59:59.000Z

    The lengthy period since the Apollo landings limits present-day engineers attempting to draw from the experiences of veteran Apollo engineers and astronauts in the design of a new lunar lander. In order to circumvent these ...

  10. RADBOUDUNIVERSITY NIJMEGEN, THE NETHERLANDS ICT for Ethiopia's land

    E-Print Network [OSTI]

    Lucas, Peter

    RADBOUDUNIVERSITY NIJMEGEN, THE NETHERLANDS ICT for Ethiopia's land administration Bachelor Thesis Information Science Sander van Hooft 7/15/2009 Supervisor: Luca Consoli, Phd. #12;ICT for Ethiopia........................................................................................... 5 4.1 Ethiopia's history of land administration

  11. admiral cockburn land: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NSCAT Views Land and Ice David G. Long Engineering Websites Summary: NSCAT Views Land and Ice David G. Long Brigham YoungUniversityMicrowaveEarth Remote Sensing- ment Agency of...

  12. Regulatory Impacts for Renewable Energy Projects on Indian Lands...

    Office of Environmental Management (EM)

    Regulatory Impacts for Renewable Energy Projects on Indian Lands Webinar Regulatory Impacts for Renewable Energy Projects on Indian Lands Webinar June 24, 2015 11:00AM to 12:30PM...

  13. CARBON SEQUESTRATION THROUGH CHANGES IN LAND USE IN OREGON

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION CARBON SEQUESTRATION THROUGH CHANGES IN LAND USE IN OREGON: COSTS, and J. Kadyszewski (Winrock International). 2007. Carbon Sequestration Through Changes in Land Use Curves, and Pilot Actions for Terrestrial Carbon Sequestration in Oregon. Report to Winrock

  14. Conditions and effectiveness of land use as a mobility tool

    E-Print Network [OSTI]

    Zhang, Ming, 1963 Apr. 22-

    2002-01-01T23:59:59.000Z

    This dissertation examines the potential of land use as a mobility tool to affect travel, a subject of long and ongoing policy debate. Land use strategies such as densification, mixed-use development, and non-driving-oriented ...

  15. arnhem land northern: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1,476 24.7 Total Land 5,972 100.0 Note: Campus areas include land leased by Rutgers. Source: Office of Facilities and Capital Planning Office Garfunkel, Eric 105...

  16. Geothermal Power Plants — Minimizing Land Use and Impact

    Broader source: Energy.gov [DOE]

    For energy production and development, geothermal power plants don't use much land compared to coal and nuclear power plants. And the environmental impact upon the land they use is minimal.

  17. agricultural land final: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    land change science, to better understand of the three foci outlined in the science plan of the Land-use and -cover change (LUCC) project (Turner et al Brown, Daniel G. 273...

  18. agricultural land evaluation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    land change science, to better understand of the three foci outlined in the science plan of the Land-use and -cover change (LUCC) project (Turner et al Brown, Daniel G. First...

  19. Green Lands Blue Water 2014 Fall Conference | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Green Lands Blue Water 2014 Fall Conference Green Lands Blue Water 2014 Fall Conference November 18, 2014 10:00AM CST to November 20, 2014 4:00PM CST Richland Community College...

  20. Chapter 10. Land Application of Biosolids Gregory K. Evanylo

    E-Print Network [OSTI]

    Kaye, Jason P.

    Chapter 10. Land Application of Biosolids Gregory K. Evanylo Department of Crop and Soil..................................................................................................................... 228 What are biosolids and how are they different from sewage sludge?......................... 228 Benefits of land application of biosolids

  1. arid lands ecology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by land use land cover (LULC) change, climate variability, and water regulations. San Antonio, Texas, the 8th largest city... Sahoo, Debabrata 2009-05-15 84 A study of...

  2. arid land ecology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by land use land cover (LULC) change, climate variability, and water regulations. San Antonio, Texas, the 8th largest city... Sahoo, Debabrata 2009-05-15 84 A study of...

  3. An appraisal of the Texas veterans' land program

    E-Print Network [OSTI]

    Dorries, W. L.

    1955-01-01T23:59:59.000Z

    , and Mr. L. C. Jackson, Executive Secretary of the Veterans' Land Board, who made the Land Board records available for this study. Credit also belongs to the many veterans who gave information concerning their land purchases. Finally, the writer 'V... is indebted to his wife, Virginia Dorries^ for reading the disserta- tion and offering valuable suggestions. m CONTENTS I. Introduction and historical background--------------------- - 1 II. Provisions for a Veterans* Land Board purchase--------------- 1...

  4. SurfaceSurface--AtmosphereAtmosphere Interactions on Venus: A ReviewInteractions on Venus: A Review

    E-Print Network [OSTI]

    Treiman, Allan H.

    CycleReactions with S gases: Sulfur Cycle · OCS, H2S abundances increase with depth · oxidation products;Reactions with S gases: Sulfur CycleReactions with S gases: Sulfur Cycle · SO2 is removed from lower

  5. MSU Departmental Assessment Plan Department: Land Resources and Environmental Sciences

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    MSU Departmental Assessment Plan 2007-2009 Department: Land Resources and Environmental Sciences (cross-college) #12;Student Outcomes Assessment Plan Land Resources and Environmental Sciences Department The Department of Land Resources and Environmental Sciences (LRES) will undertake a continuing assessment

  6. Land Acquisition Prepared by: Ben Floyd, Economic & Engineering Services

    E-Print Network [OSTI]

    Land Acquisition Prepared by: Ben Floyd, Economic & Engineering Services May 2004 Introduction Land taxpayer pockets"), and require no specific economic return to justify the expenditure. · There is also a general perception that long-term negative economic impacts may result if additional lands are taken out

  7. Land use planning and early warning systems for limiting drought

    E-Print Network [OSTI]

    Land use planning and early warning systems for limiting drought impacts and promoting recovery J response 3b. Drought early warning systems #12;Land classification based on the land's potential: soils response 3b. Drought early warning systems #12;Grassland Shrubland ­ high wind erosion Knowledge

  8. CLASSIFYING AGRICULTURAL LAND IN AN URBAN LANDSCAPE WITH APPLICATION

    E-Print Network [OSTI]

    CLASSIFYING AGRICULTURAL LAND IN AN URBAN LANDSCAPE WITH APPLICATION TO WATERFOWL CONSERVATION: Master of Resource Management Title of Research Project: Classifying Agricultural Land in an Urban to remotely sense agricultural lands and demonstrates how the results can be used for waterfowl conservation

  9. ORIGINAL ARTICLE Determining air permeability in reclaimed coastal land

    E-Print Network [OSTI]

    Zhan, Hongbin

    Springer-Verlag 2011 Abstract Coastal land reclamation is a common practice in many regions around Tidal fluctuations Á Type curves Á Water table variation Introduction Coastal land reclamation in these regions and countries are from the coastal land reclamation (Plant et al. 1998; Lee 2010). The reclaimed

  10. Analytical studies on transient groundwater flow induced by land reclamation

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Analytical studies on transient groundwater flow induced by land reclamation Litang Hu,1 Jiu Jimmy materials into the sea. Land reclamation may have a significant effect on groundwater regimes, especially when the reclamation is at large scale. Analytical studies on the impact of land reclamation on steady

  11. ORIGINAL ARTICLE Determining air permeability in reclaimed coastal land

    E-Print Network [OSTI]

    Zhan, Hongbin

    / Published online: 24 September 2011 Ó Springer-Verlag 2011 Abstract Coastal land reclamation is a common land reclamation is a common practice in many regions and countries around the world, including Nether, airfield and urban expansion in these regions and countries are from the coastal land reclamation (Plant et

  12. Late Quaternary history of Washington Land, North Greenland OLE BENNIKE

    E-Print Network [OSTI]

    Ingólfsson, Ólafur

    Late Quaternary history of Washington Land, North Greenland OLE BENNIKE Bennike, O. 2002 (September): Late Quaternary history of Washington Land, North Greenland. Boreas, Vol. 31, 260­272. Oslo. ISSN 0300-9483. During the last glacial stage, Washington Land in western North Greenland was probably completely inun

  13. Measuring the poverty reduction potential of land in rural Mexico

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    Measuring the poverty reduction potential of land in rural Mexico Frederico Finan, Elisabeth debate on the role of land as an instrument for poverty reduction, we analyze the conditions under which access to land reduces poverty in Mexican rural communities. Semi-parametric regression results show

  14. The Legal Environment for Hardwood Lands in California1

    E-Print Network [OSTI]

    Standiford, Richard B.

    and suburban expansion have served to focus new demands on hardwood lands. Concerns today focus upon (1, residential, and agricultural uses. The use of California's hardwood lands is evolving rapidly stocking or hardwood land use. This inventory of state and Federal statutes was then combined with profiles

  15. PETROLEUM LAND MANAGEMENT (PLMA) Bachelor of Commerce Degree

    E-Print Network [OSTI]

    Habib, Ayman

    PETROLEUM LAND MANAGEMENT (PLMA) Bachelor of Commerce Degree The Haskayne School of Business offers a Bachelor of commerce degree with a concentration in Petroleum Land Management that prepares graduates average, and other documentation. Two third-year courses, PLMA 475 (Introduction to Petroleum Land

  16. Programmable surfaces

    E-Print Network [OSTI]

    Sun, Amy (Amy Teh-Yu)

    2012-01-01T23:59:59.000Z

    Robotic vehicles walk on legs, roll on wheels, are pulled by tracks, pushed by propellers, lifted by wings, and steered by rudders. All of these systems share the common character of momentum transport across their surfaces. ...

  17. Scenarios of Future Socio-Economics, Energy, Land Use, and Radiative Forcing

    SciTech Connect (OSTI)

    Eom, Jiyong; Moss, Richard H.; Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Dooley, James J.; Kim, Son H.; Kopp, Roberrt; Kyle, G. Page; Luckow, Patrick W.; Patel, Pralit L.; Thomson, Allison M.; Wise, Marshall A.; Zhou, Yuyu

    2013-04-13T23:59:59.000Z

    This chapter explores uncertainty in future scenarios of energy, land use, emissions and radiative forcing that span the range in the literature for radiative forcing, but also consider uncertainty in two other dimensions, challenges to mitigation and challenges to adaptation. We develop a set of six scenarios that we explore in detail including the underlying the context in which they are set, assumptions that drive the scenarios, the Global Change Assessment Model (GCAM), used to produce quantified implications for those assumptions, and results for the global energy and land-use systems as well as emissions, concentrations and radiative forcing. We also describe the history of scenario development and the present state of development of this branch of climate change research. We discuss the implications of alternative social, economic, demographic, and technology development possibilities, as well as potential stabilization regimes for the supply of and demand for energy, the choice of energy technologies, and prices of energy and agricultural commodities. Land use and land cover will also be discussed with the emphasis on the interaction between the demand for bioenergy and crops, crop yields, crop prices, and policy settings to limit greenhouse gas emissions.

  18. ENHANCEMENT OF TERRESTRIAL CARBON SINKS THROUGH RECLAMATION OF ABANDONED MINE LANDS IN THE APPALACHIAN REGION

    SciTech Connect (OSTI)

    Gary D. Kronrad

    2002-12-01T23:59:59.000Z

    The U.S.D.I. Office of Surface Mining (OSM) estimates that there are approximately 1 million acres of abandoned mine land (AML) in the Appalachian region. AML lands are classified as areas that were inadequately reclaimed or were left unreclaimed prior to the passage of the 1977 Surface Mining Control and Reclamation Act, and where no federal or state laws require any further reclamation responsibility to any company or individual. Reclamation and afforestation of these sites have the potential to provide landowners with cyclical timber revenues, generate environmental benefits to surrounding communities, and sequester carbon in the terrestrial ecosystem. Through a memorandum of understanding, the OSM and the U.S. Department of Energy (DOE) have decided to investigate reclaiming and afforesting these lands for the purpose of mitigating the negative effects of anthropogenic carbon dioxide in the atmosphere. This study determined the carbon sequestration potential of northern red oak (Quercus rubra L.), one of the major reclamation as well as commercial species, planted on West Virginia AML sites. Analyses were conducted to (1) calculate the total number of tons that can be stored, (2) determine the cost per ton to store carbon, and (3) calculate the profitability of managing these forests for timber production alone and for timber production and carbon storage together. The Forest Management Optimizer (FORMOP) was used to simulate growth data on diameter, height, and volume for northern red oak. Variables used in this study included site indices ranging from 40 to 80 (base age 50), thinning frequencies of 0, 1, and 2, thinning percentages of 20, 25, 30, 35, and 40, and a maximum rotation length of 100 years. Real alternative rates of return (ARR) ranging from 0.5% to 12.5% were chosen for the economic analyses. A total of 769,248 thinning and harvesting combinations, net present worths, and soil expectation values were calculated in this study. Results indicate that the cost per ton to sequester carbon ranges from $6.54 on site index 80 land at a 12.5% ARR to $36.68 on site index 40 land at an ARR of 0.5%. Results also indicate that the amount of carbon stored during one rotation ranges between 38 tons per acre on site index 40 land to 58 tons per acre on site index 80 land. The profitability of afforestation on these AML sites in West Virginia increases as the market price for carbon increases from $0 to $100 per ton.

  19. Moving towards pro-poor systems of land administration: Challenges for land and asset distribution in Africa

    E-Print Network [OSTI]

    Deininger, Klaus

    2009-01-01T23:59:59.000Z

    resources to finance public services, discourage speculation, and generate incentives for effective land use (Bird and Slack

  20. Tropical Africa: Land Use, Biomass, and Carbon Estimates for 1980 (NDP-055)

    SciTech Connect (OSTI)

    Brown, S.

    2002-04-16T23:59:59.000Z

    This document describes the contents of a digital database containing maximum potential aboveground biomass, land use, and estimated biomass and carbon data for 1980. The biomass data and carbon estimates are associated with woody vegetation in Tropical Africa. These data were collected to reduce the uncertainty associated with estimating historical releases of carbon from land use change. Tropical Africa is defined here as encompassing 22.7 x 10{sup 6} km{sup 2} of the earth's land surface and is comprised of countries that are located in tropical Africa (Angola, Botswana, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Congo, Benin, Equatorial Guinea, Ethiopia, Djibouti, Gabon, Gambia, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Guinea-Bissau, Zimbabwe (Rhodesia), Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, Burkina Faso (Upper Volta), Zaire, and Zambia). The database was developed using the GRID module in the ARC/INFO{trademark} geographic information system. Source data were obtained from the Food and Agriculture Organization (FAO), the U.S. National Geophysical Data Center, and a limited number of biomass-carbon density case studies. These data were used to derive the maximum potential and actual (ca. 1980) aboveground biomass values at regional and country levels. The land-use data provided were derived from a vegetation map originally produced for the FAO by the International Institute of Vegetation Mapping, Toulouse, France.

  1. An international land-biosphere model benchmarking activity for the IPCC Fifth Assessment Report (AR5)

    SciTech Connect (OSTI)

    Hoffman, Forrest M [ORNL; Randerson, James T [ORNL; Thornton, Peter E [ORNL; Bonan, Gordon [National Center for Atmospheric Research (NCAR); Erickson III, David J [ORNL; Fung, Inez [University of California, Berkeley

    2009-12-01T23:59:59.000Z

    The need to capture important climate feedbacks in general circulation models (GCMs) has resulted in efforts to include atmospheric chemistry and land and ocean biogeochemistry into the next generation of production climate models, called Earth System Models (ESMs). While many terrestrial and ocean carbon models have been coupled to GCMs, recent work has shown that such models can yield a wide range of results (Friedlingstein et al., 2006). This work suggests that a more rigorous set of global offline and partially coupled experiments, along with detailed analyses of processes and comparisons with measurements, are needed. The Carbon-Land Model Intercomparison Project (C-LAMP) was designed to meet this need by providing a simulation protocol and model performance metrics based upon comparisons against best-available satellite- and ground-based measurements (Hoffman et al., 2007). Recently, a similar effort in Europe, called the International Land Model Benchmark (ILAMB) Project, was begun to assess the performance of European land surface models. These two projects will now serve as prototypes for a proposed international land-biosphere model benchmarking activity for those models participating in the IPCC Fifth Assessment Report (AR5). Initially used for model validation for terrestrial biogeochemistry models in the NCAR Community Land Model (CLM), C-LAMP incorporates a simulation protocol for both offline and partially coupled simulations using a prescribed historical trajectory of atmospheric CO2 concentrations. Models are confronted with data through comparisons against AmeriFlux site measurements, MODIS satellite observations, NOAA Globalview flask records, TRANSCOM inversions, and Free Air CO2 Enrichment (FACE) site measurements. Both sets of experiments have been performed using two different terrestrial biogeochemistry modules coupled to the CLM version 3 in the Community Climate System Model version 3 (CCSM3): the CASA model of Fung, et al., and the carbon-nitrogen (CN) model of Thornton. Comparisons of the CLM3 offline results against observational datasets have been performed and are described in Randerson et al. (2009). CLM version 4 has been evaluated using C-LAMP, showing improvement in many of the metrics. Efforts are now underway to initiate a Nitrogen-Land Model Intercomparison Project (N-LAMP) to better constrain the effects of the nitrogen cycle in biosphere models. Presented will be new results from C-LAMP for CLM4, initial N-LAMP developments, and the proposed land-biosphere model benchmarking activity.

  2. Impacts of Land-use Changes on Biofuels ORNL History of Exploring Changes in Land Use in the United States

    E-Print Network [OSTI]

    Impacts of Land-use Changes on Biofuels ORNL History of Exploring Changes in Land Use in the United. Building from their work on environmental costs and benefits associated with biofuel production, ORNL positively impact the sustainability of the biofuels industry. Building understanding of land-use change from

  3. developments. interactive

    E-Print Network [OSTI]

    Jaun, André

    interactive course: ffl web­pages for hyper­linked lecture notes, student exercises and projects, ffl java teachers: ffl public on the web y : lecture notes including the JBONE applet, ffl on demand: source Java

  4. Materializing interaction

    E-Print Network [OSTI]

    Coelho, Marcelo

    2013-01-01T23:59:59.000Z

    At the boundary between people, objects and spaces, we encounter a broad range of surfaces. Their properties perform functional roles such as permeability, comfort or illumination, while conveying information such as an ...

  5. Watershed response and land energy feedbacks under climate change depend upon groundwater.

    SciTech Connect (OSTI)

    Maxwell, R M; Kollet, S J

    2008-06-10T23:59:59.000Z

    Human induced climate change will have a significant impact on the hydrologic cycle, creating changes in fresh water resources, land cover, and feedbacks that are difficult to characterize, which makes it an issue of global importance. Previous studies have not included subsurface storage in climate change simulations and feedbacks. A variably-saturated groundwater flow model with integrated overland flow and land surface model processes is used to examine the interplay between coupled water and energy processes under climate change conditions. A case study from the Southern Great Plains (SGP) USA, an important agricultural region that is susceptible to drought, is used as the basis for three scenarios simulations using a modified atmospheric forcing dataset to reflect predicted effects due to human-induced climate change. These scenarios include an increase in the atmospheric temperature and variations in rainfall amount and are compared to the present-day climate case. Changes in shallow soil saturation and groundwater levels are quantified as well as the corresponding energy fluxes at the land surface. Here we show that groundwater and subsurface lateral flow processes are critical in understanding hydrologic response and energy feedbacks to climate change and that certain regions are more susceptible to changes in temperature, while others to changes in precipitation. This groundwater control is critical for understanding recharge and drought processes, possible under future climate conditions.

  6. Surface Science of Biosensors and Biointerfaces | Stanford Synchrotron...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    discuss plasma functionalization of cellulose and plastic biosensor chips, surface plasmon resonance (SPR) based detection of molecular interaction and X ray absorption studies...

  7. Surface Soil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructure ofIndustrialSupportingAlbedo at theSurface Soil Surface Soil

  8. Symmetry Energy in Nuclear Surface

    E-Print Network [OSTI]

    Pawel Danielewicz; Jenny Lee

    2008-12-25T23:59:59.000Z

    Interplay between the dependence of symmetry energy on density and the variation of nucleonic densities across nuclear surface is discussed. That interplay gives rise to the mass dependence of the symmetry coefficient in an energy formula. Charge symmetry of the nuclear interactions allows to introduce isoscalar and isovector densities that are approximately independent of the magnitude of neutron-proton asymmetry.

  9. AiR surface: AiR surface 1

    E-Print Network [OSTI]

    Tanaka, Jiro

    AiR surface: 1 PDA AiR surface 1 1: AiR surface () () 2 [1] [2] 3 AiR surface AiR surface surface surface surface 3.1 surface [3]( 3 ) surface 3.2 surface surface AiR surface 4 AiR surface surface AiR surface: Virtual Touch Panel

  10. Experimental investigation of a thermionic converter with developed surface electrodes

    SciTech Connect (OSTI)

    Luke, James R.; El-Genk, Mohamed S.; Adrian, John M. [Institute for Space and Nuclear Power Studies/Chemical and Nuclear Engineering Department University of New Mexico, Albuquerque, New Mexico 87131 (United States)

    1997-01-10T23:59:59.000Z

    A thermionic converter with developed planar electrode surfaces is designed and tested. One of the electrodes has concentric circular grooves cut into its surface, while the other electrode surface is smooth. The grooves are 0.5 mm deep and 0.5 mm wide, having lands that are 1.0 mm wide. The experimental setup is flexible so that either the smooth or developed surface electrode can be operated as the emitter, with the other operating as the collector. The I-V characteristics and power output are compared for the two electrode arrangements.

  11. Experimental investigation of a thermionic converter with developed surface electrodes

    SciTech Connect (OSTI)

    Luke, J.R.; El-Genk, M.S.; Adrian, J.M. [Institute for Space and Nuclear Power Studies/Chemical and Nuclear Engineering Department University of New Mexico, Albuquerque, New Mexico87131 (United States)

    1997-01-01T23:59:59.000Z

    A thermionic converter with developed planar electrode surfaces is designed and tested. One of the electrodes has concentric circular grooves cut into its surface, while the other electrode surface is smooth. The grooves are 0.5 mm deep and 0.5 mm wide, having lands that are 1.0 mm wide. The experimental setup is flexible so that either the smooth or developed surface electrode can be operated as the emitter, with the other operating as the collector. The I-V characteristics and power output are compared for the two electrode arrangements. {copyright} {ital 1997 American Institute of Physics.}

  12. Autonomous land navigation in a structured environment

    SciTech Connect (OSTI)

    Klarer, P.R. (Sandia National Lab., Advanced Technology Div., Albuquerque, NM (US))

    1990-03-01T23:59:59.000Z

    This paper describes a hardware and software system developed to perform autonomous navigation of a land vehicle in a structured environment. The vehicle used for development and testing of the system was the Jeep Cherokee Mobile Robotics Testbed Vehicle developed at Sandia National Laboratories in Albuquerque. Since obstacle detection and avoidance have not yet been incorporated into the system, a structured environment is postulated that presumes the paths to be traversed are free of obstacles. The system performs path planning and execution based on maps constructed using the vehicle's on board navigation system and map-maker. The system software, hardware and performance data are discussed.

  13. how much land | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind Home Rmckeel's Homeguidance documentmuch land Home

  14. pv land use | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind Home Rmckeel'slinkedpolicy Homepv land use Home

  15. AG Land 2 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00 U.S.ratios in CenozoicACALADAAG Land 2

  16. AG Land 4 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00 U.S.ratios in CenozoicACALADAAG Land 24

  17. AG Land 6 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00 U.S.ratios in CenozoicACALADAAG Land 246

  18. Land-Use Change Data Analysis

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLEDControl Concept |Energy MicroGrid |Land

  19. Ewing Land Development Services | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: Energy Resources(RECP)Coolers JumpOpenRoadEwing Land

  20. IDRISI Land Change Modeler | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEIHesperia,IDGWP Wind Farm Jump to: navigation, search NameIDRISI Land

  1. Land O Lakes Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou NewKorea PartsLLNLLaizhouLand O Lakes Inc Jump to:

  2. Land Use Assessment Toolkit | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou NewKorea PartsLLNLLaizhouLand O Lakes Inc

  3. Polymers near Metal Surfaces: Selective Adsorption and Global Conformations L. Delle Site,1

    E-Print Network [OSTI]

    Alavi, Ali

    of a polycarbonate melt near a nickel surface as a model system for the interaction of polymers with metal surfaces- level modeling of polymers near metal surfaces. Liquid polycarbonate near a nickel surface is taken.g., production of compact disks). We combine ab initio calculations for the interaction of fragments of bisphenol-A-polycarbonate

  4. Water and Energy Interactions

    E-Print Network [OSTI]

    McMahon, James E.

    2013-01-01T23:59:59.000Z

    DOE). 2008. Fossil Energy: Coal Mining and Transportation.aspects of generating energy from coal. Land reclamation andthat required for producing energy from coal. Traditionally,

  5. Land Use Change in theLand Use Change in the United States:United States

    E-Print Network [OSTI]

    Gray, Matthew

    . This would require a 10-fold increase in biomass supply, . . . how much land? Future Biofuel Production Flexibility Program for Bioenergy Producers Section 9011: Biomass Crop Assistance Program Section 9012: Forest of fuel a year; 30% would be about 95 billion gallons, which would require 1 billion tons of biomass

  6. Study of Multi-Scale Plant-Groundwater Interactions 

    E-Print Network [OSTI]

    Gou, Si

    2014-05-30T23:59:59.000Z

    groundwater-land surface model, ParFlow.CLM, to develop a spatial distributed ecohydrological model at the stand scale (~1000 m^(2)). The modified ParFlow.CLM was used to conduct a 8-year simulation with half hourly time step at a AmeriFlux oak savanna site...

  7. OceanAtmosphere Interactions on Interannual to Decadal

    E-Print Network [OSTI]

    Vuille, Mathias

    , and the land surface and the biosphere. Ocean­atmosphere interac- tions include exchanges of energy (i.e., radia- tive transfer and heat fluxes), momentum (i.e., wind stress), water (i.e., precipitation temperature shows high power at all time scales. This variation in behavior is the funda- mental cause of many

  8. AMAROK PIKAP: INTERACTIVE PERCUSSION PLAYING AUTOMOBILE*

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    AMAROK PIKAP: INTERACTIVE PERCUSSION PLAYING AUTOMOBILE* Selçuk ARTUT Sabanci University Faculty project utilizes an interactive system on the surface of an automobile that is specially modified of an automobile campaign: Amarok Pikap. The structure that forms the design will also be subjected to a technical

  9. Bayesian Calibration of the Community Land Model using Surrogates

    SciTech Connect (OSTI)

    Ray, Jaideep; Hou, Zhangshuan; Huang, Maoyi; Sargsyan, K.; Swiler, Laura P.

    2015-01-01T23:59:59.000Z

    We present results from the Bayesian calibration of hydrological parameters of the Community Land Model (CLM), which is often used in climate simulations and Earth system models. A statistical inverse problem is formulated for three hydrological parameters, conditioned on observations of latent heat surface fluxes over 48 months. Our calibration method uses polynomial and Gaussian process surrogates of the CLM, and solves the parameter estimation problem using a Markov chain Monte Carlo sampler. Posterior probability densities for the parameters are developed for two sites with different soil and vegetation covers. Our method also allows us to examine the structural error in CLM under two error models. We find that accurate surrogate models can be created for CLM in most cases. The posterior distributions lead to better prediction than the default parameter values in CLM. Climatologically averaging the observations does not modify the parameters’ distributions significantly. The structural error model reveals a correlation time-scale which can potentially be used to identify physical processes that could be contributing to it. While the calibrated CLM has a higher predictive skill, the calibration is under-dispersive.

  10. Bureau of Land Management, Colorado collaborate to advance efficient...

    Open Energy Info (EERE)

    Colorado collaborate to advance efficient geothermal development Jump to: navigation, search OpenEI Reference LibraryAdd to library Memorandum: Bureau of Land Management, Colorado...

  11. Hawaii Department of Land and Natural Resources Division of Forestry...

    Open Energy Info (EERE)

    Name: Hawaii Department of Land and Natural Resources Division of Forestry and Wildlife Address: Kalanimoku Building 1151 Punchbowl St., Room 325 Place: Honolulu, Hawaii Zip:...

  12. Sustainable Land Management Through Market-Oriented Commodity...

    Open Energy Info (EERE)

    Market-Oriented Commodity Development: Case studies from Ethiopia Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Sustainable Land Management Through Market-Oriented...

  13. Reclamation of Land Used for Mineral Mining (Virginia)

    Broader source: Energy.gov [DOE]

    This legislation aims to provide for the rehabilitation and conservation of land affected by the mining of minerals through proper planning, proper use of appropriate methods of mining,...

  14. Land Transport Sector in Bangladesh: An Analysis Toward Motivating...

    Open Energy Info (EERE)

    Motivating GHG Emission Reduction Strategies Jump to: navigation, search Name Land Transport Sector in Bangladesh: An Analysis Toward Motivating GHG Emission Reduction...

  15. Precision Measurement of Neutrino Oscillation Parameters with KamLAND

    E-Print Network [OSTI]

    ODonnell, Thomas Michael

    2011-01-01T23:59:59.000Z

    default and new reactor-spectra calculations are given inusing the default reactor-spectrum calculation presented incores for reactor neutrino flux calculations for the KamLAND

  16. Precision Measurement of Neutrino Oscillation Parameters with KamLAND

    E-Print Network [OSTI]

    O'Donnell, Thomas

    2013-01-01T23:59:59.000Z

    default and new reactor-spectra calculations are given inusing the default reactor-spectrum calculation presented incores for reactor neutrino flux calculations for the KamLAND

  17. What's Happening in the Texas Farm and Ranch Land Market.

    E-Print Network [OSTI]

    Andrews, F. B.; Wooten, A. B.

    1965-01-01T23:59:59.000Z

    of the 1963 Texas land market activity is based on information JJ. obtained from 26 sample counties in 16 of the 17 type-of-farming area\\. In each sample county, specific data were obtained from warranty deed recortl\\ cri all bona fide sales containing 20... farm and ranch income has fluctuated. Results of the 196r land market study deviated from this pattern. Land prices continued to ~icr and volume of land sales increased, reversing its position from the trend of a constant decrease. Net farm and ranch...

  18. Omak Creek land acquisition Fact Sheet.indd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    factsheet factsheet Omak Creek acquisition to protect summer steelhead habitat The Bonneville Power Administration is proposing to fund the purchase of two adjacent land parcels to...

  19. Cougar Creek land acquisition Fact Sheet.indd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of wildlife habitat along Cougar Creek The Bonneville Power Administration proposes to fund the acquisition of wildlife mitigation lands in the Cougar Creek watershed in Shoshone...

  20. automated cultivation land: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Physics Websites Summary: . In the meanwhile, the USA funded the DARPA Autonomous Land Vehicle (ALV) project. Here, laser-based (ERIM full automation with the first DARPA Grand...

  1. Coordination of Federal Transmission Permitting on Federal Lands...

    Office of Environmental Management (EM)

    transmission facilities on federal lands. In most instances, the Departments of Agriculture or Interior will be the Lead Agency, since they have jurisdiction over most of the...

  2. Iowa Land Recycling and Environmental Remediation Standards Act (Iowa)

    Broader source: Energy.gov [DOE]

    This chapter establishes remediation standards for land, other than standards for water quality, hazardous conditions, underground storage tanks, and groundwater protection, which are discussed in...

  3. Land Reclamation and the Resource Extraction Reclamation Act (Florida)

    Broader source: Energy.gov [DOE]

    The Department of Environmental Protection's Mining Program is responsible for enacting and implementing regulations pertaining to land reclamation. The program primarily focuses on the reclamation...

  4. Hawaii Department of Land and Natural Resources Commission on...

    Open Energy Info (EERE)

    Hawaii Department of Land and Natural Resources Commission on Water Resource Management Address: Kalanimoku Building 1151 Punchbowl Street Room 227 Place: Honolulu, Hawaii Zip:...

  5. Texas General Land Office Construction Certificate and Dune Protection...

    Open Energy Info (EERE)

    Texas General Land Office Construction Certificate and Dune Protection Permit Requirements Checklist Jump to: navigation, search OpenEI Reference LibraryAdd to library Permitting...

  6. Land Acquisition protects fish habitat in Wahkiakum County -...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (BPA) is proposing to fund the Columbia Land Trust (CLT) through its contract with the Lower Columbia River Estuary Partnership (LCREP) to acquire 305 acres of hillside forest,...

  7. Energy Corridors on Federal Lands | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    of Federal Lands in States Identified by EPAct 2005 (August 2011) Related Links West-wide Energy Corridor Programmatic EIS Information Center East-wide Energy Corridor Programmatic...

  8. Wind Power Siting: Public Acceptance and Land Use

    Wind Powering America (EERE)

    by the Alliance for Sustainable Energy, LLC. Wind Power Siting: Public Acceptance and Land Use Suzanne Tegen WINDExchange Webinar June 17, 2015 2 Overview * Current NREL Research *...

  9. Geothermal Direct-Use — Minimizing Land Use and Impact

    Broader source: Energy.gov [DOE]

    With geothermal direct-use applications, land use issues usually only arise during exploration and development when geothermal reservoirs are located in or near urbanized areas, critical habitat...

  10. Apollo: Adaptive power optimization and Control for the land Warrior

    E-Print Network [OSTI]

    Pedram, Massoud

    Apollo: Adaptive power optimization and Control for the land Warrior Massoud Pedram Dept. of EE management Architecture organization techniquesArchitecture organization techniques Apollo TestbedApollo

  11. Moving Toward Exclusive Tribal Autonomy over Lands and Natural Resources

    E-Print Network [OSTI]

    Leeds, Stacy L.

    2006-01-01T23:59:59.000Z

    (implying that when land is held in fee by a non- Indian there is a presumption against tribal jurisdiction). 446 [Vol. 46 TOWARD TRIBAL AUTONOMY OF LANDS held in fee, even when the tribal government is the land owner. 56 Federal courts have determined... of Discovery in American Indian Law, 42 IDAHO L. REV. 1, 115 (2005). NATURAL RESOURCES JOURNAL government would take on a brief supervisory and protectorate role as trustee over the newly allotted lands. 4 After an adjustment period for the new individual...

  12. Residential agents and land use change modelling 

    E-Print Network [OSTI]

    Fontaine, Corentin M.

    2010-01-01T23:59:59.000Z

    Urbanisation is driven by the complex interactions of many physical and human factors where human actions and decisions, individually and collectively, ultimately shape the patterns of urban landscapes. Agentbased modelling ...

  13. Rainfall trends in India and their impact on soil erosion and land management

    E-Print Network [OSTI]

    Pal, Indrani

    2010-02-09T23:59:59.000Z

    (Ich0.5,PPch at left), soil water deficit (SWDch at centre) and land cover (LCch at right) (Nunes et al., 2009) 170 Figure 4.3 Flow chart of a model of the processes of soil erosion by water (Meyer & Wischmeier, 1969) 173 Figure 4.4 Carbon loss... concentration in surface water d Number of storms in a day e Kinetic energy of rainfall E Total storm kinetic energy ENSO El-Niño Southern Oscillation gc Daily ground cover subfactor I Rainfall intensity i Index of the number of storms in each day...

  14. The Role of Interactions and Mergers

    E-Print Network [OSTI]

    F. Combes

    1998-04-13T23:59:59.000Z

    Galaxy evolution depends strongly on the environment. Dynamical interactions and subsequent evolution make galaxies more concentrated, with higher surface densities, and also trigger star-formation, which consumes the available cold gas. Already at z=0, a large variety of galaxy types are observed, with different evolution stages, from the unevolved gas rich dwarf irregulars, or low surface brightness galaxies, to early-type concentrated galaxies, with no remaining gas. The dynamical processes of galaxy interactions, including internal evolution, are reviewed and evidence is shown of much larger interaction/merging rate at high redshift.

  15. Land application uses for dry flue gas desulfurization by-products: Phase 3

    SciTech Connect (OSTI)

    Dick, W.; Bigham, J.; Forster, R.; Hitzhusen, F.; Lal, R.; Stehouwer, R.; Traina, S.; Wolfe, W.; Haefner, R.; Rowe, G.

    1999-01-31T23:59:59.000Z

    New flue gas desulfurization (FGD) scrubbing technologies create a dry, solid by-product material consisting of excess sorbent, reaction product that contains sulfate and sulfite, and coal fly ash. Generally, dry FGD by-products are treated as solid wastes and disposed in landfills. However, landfill sites are becoming scarce and tipping fees are constantly increasing. Provided the environmental impacts are socially and scientifically acceptable, beneficial uses via recycling can provide economic benefits to both the producer and the end user of the FGD. A study titled ''Land Application Uses for Dry Flue Gas Desulfurization By-Products'' was initiated in December, 1990 to develop and demonstrate large volume, beneficial uses of FGD by-products. Phase 1 and Phase 2 reports have been published by the Electric Power Research Institute (EPRI), Palo Alto, CA. Phase 3 objectives were to demonstrate, using field studies, the beneficial uses of FGD by-products (1) as an amendment material on agricultural lands and on abandoned surface coal mine land, (2) as an engineering material for soil stabilization and raid repair, and (3) to assess the environmental and economic impacts of such beneficial uses. Application of dry FGD by-product to three soils in place of agricultural limestone increased alfalfa (Medicago sativa L.) and corn (Zea may L.) yields. No detrimental effects on soil and plant quality were observed.

  16. Trace Metal Retention in the Incorporation Zone of Land-Applied

    E-Print Network [OSTI]

    Walter, M.Todd

    , with agricultural, forest, and range lands as well as land reclamation sites increasingly used for land applicationTrace Metal Retention in the Incorporation Zone of Land-Applied Sludge T A M M O S . S T E E N H U, Ithaca, New York 14853 Recycling nutrients in wastewater sludge (biosolids) via land application

  17. Global Soil Change: Land Use, Soil and Water SWS4231C, SWS5234

    E-Print Network [OSTI]

    Ma, Lena

    of the soil system to withstand global-scale perturbations (e.g., climate or land use change, spread Properties 4. Land Use Change Impacts on Soils 5. Land Use and Agriculture (Irrigation and Fertilization In Soil) 6. Land Use and Soil Erosion 7. Climate Change Impacts on Soils 8. Land Use-Climate

  18. Regulations for Land Disturbing Activities (North Carolina)

    Broader source: Energy.gov [DOE]

    The law requires installation and maintenance of sufficient erosion control practices to retain sediment within the boundaries of the site. It also requires that surfaces be non-erosive and stable...

  19. Interactive Jobs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes | National Nuclear SecurityIntellectual PropertyIntensityInteractive

  20. Lawrence Livermore National Laboratory Surface Water Protection: A Watershed Approach

    SciTech Connect (OSTI)

    Coty, J

    2009-03-16T23:59:59.000Z

    This surface water protection plan (plan) provides an overview of the management efforts implemented at Lawrence Livermore National Laboratory (LLNL) that support a watershed approach to protect surface water. This plan fulfills a requirement in the Department of Energy (DOE) Order 450.1A to demonstrate a watershed approach for surface water protection that protects the environment and public health. This plan describes the use of a watershed approach within which the Laboratory's current surface water management and protections efforts have been structured and coordinated. With more than 800 million acres of land in the U.S. under federal management and stewardship, a unified approach across agencies provides enhanced resource protection and cost-effectiveness. The DOE adopted, along with other federal agencies, the Unified Federal Policy for a Watershed Approach to Federal Land and Resource Management (UFP) with a goal to protect water quality and aquatic ecosystems on federal lands. This policy intends to prevent and/or reduce water pollution from federal activities while fostering a cost-effective watershed approach to federal land and resource management. The UFP also intends to enhance the implementation of existing laws (e.g., the Clean Water Act [CWA] and National Environmental Policy Act [NEPA]) and regulations. In addition, this provides an opportunity for the federal government to serve as a model for water quality stewardship using a watershed approach for federal land and resource activities that potentially impact surface water and its uses. As a federal land manager, the Laboratory is responsible for a small but important part of those 800 million acres of land. Diverse land uses are required to support the Laboratory's mission and provide an appropriate work environment for its staff. The Laboratory comprises two sites: its main site in Livermore, California, and the Experimental Test Site (Site 300), near Tracy, California. The main site is largely developed yet its surface water system encompasses two arroyos, an engineered detention basin (Lake Haussmann), storm channels, and wetlands. Conversely, the more rural Site 300 includes approximately 7,000 acres of largely undeveloped land with many natural tributaries, riparian habitats, and wetland areas. These wetlands include vernal pools, perennial seeps, and emergent wetlands. The watersheds within which the Laboratory's sites lie provide local and community ecological functions and services which require protection. These functions and services include water supply, flood attenuation, groundwater recharge, water quality improvement, wildlife and aquatic habitats, erosion control, and (downstream) recreational opportunities. The Laboratory employs a watershed approach to protect these surface water systems. The intent of this approach, presented in this document, is to provide an integrated effort to eliminate or minimize any adverse environmental impacts of the Laboratory's operations and enhance the attributes of these surface water systems, as possible and when reasonable, to protect their value to the community and watershed. The Laboratory's watershed approach to surface water protection will use the U.S. Environmental Protection Agency's Watershed Framework and guiding principles of geographic focus, scientifically based management and partnerships1 as a foundation. While the Laboratory's unique site characteristics result in objectives and priorities that may differ from other industrial sites, these underlying guiding principles provide a structure for surface water protection to ensure the Laboratory's role in environmental stewardship and as a community partner in watershed protection. The approach includes pollution prevention, continual environmental improvement, and supporting, as possible, community objectives (e.g., protection of the San Francisco Bay watershed).

  1. Draft 2-5-06 appendix B: Land Leases

    E-Print Network [OSTI]

    Lee, Jason R.

    background Draft 2-5-06 appendix B: Land Leases appendices tract / Parcel / Buildings acres Wilson (Grizzly Peak Substation) 0.50 The Berkeley Lab main site is a 202 acre parcel of land owned and managed Figure F.1 3 Photo the new Molecular Foundry building earned the u.s. green building council's "silver

  2. Land Use and natUraL resoUrces

    E-Print Network [OSTI]

    California at Davis, University of

    Land Use and natUraL resoUrces summer 2012 Including: Climate Change and Local Planning Strategies Overview of Environmental Statistics Green Building Design Studio CONTINuING AND PrOFessIONAL eDuCATION #12Ndar........................................................................................................................4 laNd USe plaNNiNg Climate Change and Local Planning Strategies

  3. MSU Departmental Assessment Plan Department: Land Resources and Environmental Sciences

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    MSU Departmental Assessment Plan 2009-2010 Department: Land Resources and Environmental Sciences: Ecology and Environmental Sciences (cross-college) #12;Student Outcomes Assessment Plan Land Resources Department Head: Tracy M. Sterling Assessment Coordinator: Cathy Zabinski Degrees/Majors/Options Offered

  4. Geospatial Analysis of Renewable Energy Technical Potential on Tribal Lands

    SciTech Connect (OSTI)

    Doris, E.; Lopez, A.; Beckley, D.

    2013-02-01T23:59:59.000Z

    This technical report uses an established geospatial methodology to estimate the technical potential for renewable energy on tribal lands for the purpose of allowing Tribes to prioritize the development of renewable energy resources either for community scale on-tribal land use or for revenue generating electricity sales.

  5. Important land tenure influences on soil conservation in the southwest

    E-Print Network [OSTI]

    Southern, John Hoyle

    1949-01-01T23:59:59.000Z

    for landoening bas bosn eoononio returns through inoacs from orops, or froc sale of lend 'Land hunger" as esproseed by en attitude of olinging to the seourity of land through all phases of a Oyelis esmany ie nst generally Oiaraeteriotie Of 1andhslding...

  6. ITAM SERVICES CENTER FOR ENVIRONMENTAL MANAGEMENT OF MILITARY LANDS

    E-Print Network [OSTI]

    ITAM SERVICES CENTER FOR ENVIRONMENTAL MANAGEMENT OF MILITARY LANDS CEMML | 1490 Campus Delivery://www.cemml.colostate.edu The Integrated Training Area Management (ITAM) Program maintains training lands so that they meet Army doctrinal with conservation of the soils, water, flora, and fauna on military installations. The ITAM Program comprises four

  7. Global Ice and Land Climate Studies Using Scatterometer Image Data

    E-Print Network [OSTI]

    Long, David G.

    1 Global Ice and Land Climate Studies Using Scatterometer Image Data David G. Long Brigham Young CA 91109 ben@pacific.jpl.nasa.gov Sasan.Saatchi@jpl.nasa.gov Cheryl Bertoia U. S. National Ice Center: Long, D. G., M. R. Drinkwater, B. Holt, S. Saatchi, and C. Bertoia, Global ice and land climate studies

  8. CHARACTERIZATION OF LAND DEGRADATION PROCESSES USING AIRBORNE LASER SCANNING

    E-Print Network [OSTI]

    Marco, Shmuel "Shmulik"

    CHARACTERIZATION OF LAND DEGRADATION PROCESSES USING AIRBORNE LASER SCANNING Sagi Filin1 , Amit@tau.ac.il Commission VIII/8 KEY WORDS: Airborne laser scanning, Geomorphology, Dead Sea, Land Degradation, Sinkholes of collapse sinkholes in high resolution using airborne laser scanning technology. As a study case, we use

  9. In this issue: New Tax Incentives for Land in Conservation

    E-Print Network [OSTI]

    Watson, Craig A.

    In this issue: · New Tax Incentives for Land in Conservation · Florida's Outstanding Tree Farmers Quantifies Economic Impact of Private, Working Forests · New Longleaf Book for Landowners and Foresters · Get Landowners and Resource Professionals Volume 16, No. 4 Spring 2010 New Tax Incentives for Land

  10. Assessment of Biomass Resources from Marginal Lands in APEC Economies

    SciTech Connect (OSTI)

    Milbrandt, A.; Overend, R. P.

    2009-08-01T23:59:59.000Z

    The goal of this study is to examine the marginal lands in Asia-Pacific Economic Cooperation (APEC) economies and evaluate their biomass productivity potential. Twelve categories of marginal lands are identified using the Global Agro-Ecological Zones system of the United Nations Food and Agriculture Organization.

  11. Analysis of Land Suitable for Algae State of Hawaii

    E-Print Network [OSTI]

    Analysis of Land Suitable for Algae Production State of Hawaii Prepared for the U.S. Department agency thereof. #12;Analysis of Land Suitable for Algae Production State of Hawaii Prepared by Mele University of Hawaii at Manoa August 2011 #12;i Executive Summary Algae are considered to be a viable crop

  12. The Impact of Biofuel Mandates on Land Use Suhail Ahmad

    E-Print Network [OSTI]

    The Impact of Biofuel Mandates on Land Use by Suhail Ahmad B.E., Avionics Engineering National, Technology and Policy Program #12;#12;3 The Impact of Biofuel Mandates on Land Use by Suhail Ahmad Submitted of Master of Science in Technology and Policy ABSTRACT The use of biofuels in domestic transportation sector

  13. FLORISTICS LABORATORY CENTER FOR ENVIRONMENTAL MANAGEMENT OF MILITARY LANDS

    E-Print Network [OSTI]

    . A baseline floristic survey is an essential element for management of military lands. This information, and supports adequate training sites. The Center conducts comprehensive planning level surveys to document conservation measures. In addition invasive plants are documented to aid in land management decisions. Surveys

  14. Symposium Essay: The Energy-Land Use Nexus

    E-Print Network [OSTI]

    Outka, Uma

    2012-01-01T23:59:59.000Z

    of U.S. energy policy tilts away from fossil fuels. The Essay argues that the energy-land use nexus provides a useful frame for approaching policy to minimize points of conflict between energy goals on the one hand and land conservation on the other....

  15. Land Cover, Land Use of twoLand Cover, Land Use of two bioluminescent bays in Puerto Ricobioluminescent bays in Puerto Ricobioluminescent bays in Puerto Ricobioluminescent bays in Puerto Rico

    E-Print Network [OSTI]

    Gilbes, Fernando

    Bay inin ViequesVieques andandLandLand aroundaround PuertoPuerto MosquitoMosquito BayBay inin ViequesVieques andand LaLa PargueraParguera BioluminescenceBioluminescence BayBay inin Lajas,Lajas, PuertoPuerto RicoBioluminescent BayBay hashas shownshown aa decreasedecrease inin itsits bioluminescencebioluminescence byby

  16. Mapping the Potential for Biofuel Production on Marginal Lands: Differences in Definitions, Data and Models across Scales

    E-Print Network [OSTI]

    Lewis, Sarah M

    2014-01-01T23:59:59.000Z

    D. Land availability for biofuel production. Environ. Sci.of land available for biofuel production. Environ. Sci.so marginal land for biofuel crops is limited. Energy Policy

  17. Interactive Topic Modeling

    E-Print Network [OSTI]

    Pleple, Quentin

    26 Interactive LDA . . . . . . . . . . . . . . . .and B. Satinoff (2011). Interactive topic modeling. InOF CALIFORNIA, SAN DIEGO Interactive Topic Modeling A thesis

  18. Idaho National Laboratory Comprehensive Land Use and Environmental Stewardship Report

    SciTech Connect (OSTI)

    No name listed on publication

    2011-08-01T23:59:59.000Z

    Land and facility use planning and decisions at the Idaho National Laboratory (INL) Site are guided by a comprehensive site planning process in accordance with Department of Energy Policy 430.1, 'Land and Facility Use Policy,' that integrates mission, economic, ecologic, social, and cultural factors. The INL Ten-Year Site Plan, prepared in accordance with Department of Energy Order 430.1B, 'Real Property Asset Management,' outlines the vision and strategy to transform INL to deliver world-leading capabilities that will enable the Department of Energy to accomplish its mission. Land use planning is the overarching function within real property asset management that integrates the other functions of acquisition, recapitalization, maintenance, disposition, real property utilization, and long-term stewardship into a coordinated effort to ensure current and future mission needs are met. All land and facility use projects planned at the INL Site are considered through a formal planning process that supports the Ten-Year Site Plan. This Comprehensive Land Use and Environmental Stewardship Report describes that process. The land use planning process identifies the current condition of existing land and facility assets and the scope of constraints across INL and in the surrounding region. Current land use conditions are included in the Comprehensive Land Use and Environmental Stewardship Report and facility assets and scope of constraints are discussed in the Ten-Year Site Plan. This report also presents the past, present, and future uses of land at the INL Site that are considered during the planning process, as well as outlining the future of the INL Site for the 10, 30, and 100-year timeframes.

  19. The effect of dust blowback on spatial orientation estimation during lunar landing

    E-Print Network [OSTI]

    Tritchler, Stephanie E. (Stephanie Elaine)

    2013-01-01T23:59:59.000Z

    Landing is a dangerous and complex phase of any flight. Landing on an airless, dusty world presents unique challenges to perception, including dust blowback. During crewed lunar landings, astronauts will either be directly ...

  20. Using land value capture to fund rail transit extensions in Mexico City and Santiago de Chile

    E-Print Network [OSTI]

    Covarrubias, Alvaro, 1973-

    2004-01-01T23:59:59.000Z

    The effects of rail rapid transit on land uses and land values are discussed. Rail transit can enhance accessibility, and can raise the demand for locating in areas around stations, increasing land value, and in some cases ...