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1

Terrestrial ecosystems and climatic change  

SciTech Connect

The structure and function of terrestrial ecosystems depend on climate, and in turn, ecosystems influence atmospheric composition and climate. A comprehensive, global model of terrestrial ecosystem dynamics is needed. A hierarchical approach appears advisable given currently available concepts, data, and formalisms. The organization of models can be based on the temporal scales involved. A rapidly responding model describes the processes associated with photosynthesis, including carbon, moisture, and heat exchange with the atmosphere. An intermediate model handles subannual variations that are closely associated with allocation and seasonal changes in productivity and decomposition. A slow response model describes plant growth and succession with associated element cycling over decades and centuries. These three levels of terrestrial models are linked through common specifications of environmental conditions and constrain each other. 58 refs.

Emanuel, W.R. (Oak Ridge National Lab., TN (USA)); Schimel, D.S. (Colorado State Univ., Fort Collins, CO (USA). Natural Resources Ecology Lab.)

1990-01-01T23:59:59.000Z

2

EMSL: Science: Terrestrial & Subsurface Ecosystems  

NLE Websites -- All DOE Office Websites (Extended Search)

Terrestrial & Subsurface Ecosystems Terrestrial & Subsurface Ecosystems Terrestrial and Subsurface Ecosystems logo Visualization of CFD-simulated fluid velocities within a single pore space between randomly packed spherical grains Visualization of CFD-simulated fluid velocities within a single pore space between randomly packed spherical grains. The Terrestrial and Subsurface Ecosystems Science Theme focuses on the dynamics of nutrients, metabolites, and contaminants at biogeochemical interfaces in heterogeneous environments across multiple scales. By providing a mechanistic understanding of biogeochemical and microbial processes in soils and the subsurface, and linking those processes via pore-scale hydrological models, EMSL can improve strategies for sustainable solutions to contaminant attenuation, remediation and biogeochemical

3

Organochlorine Turnover in Forest Ecosystems: The Missing Link in the Terrestrial Chlorine Cycle  

SciTech Connect

Research in the last 20 years has shown that chlorine undergoes transformations between inorganic and organic forms as part of a complex biogeochemical cycle in terrestrial systems. Natural organochlorine production appears to be associated with the decomposition of plant material on the soil surface, though the chlorine cycle budget implies that a proportion of natural organochlorine enters soil through plant litter and atmospheric deposition as well. Organochlorine compounds may form through biotic and abiotic pathways, but the rates and magnitude of production in the field remain undefined. We have performed a time-dependent trace of chlorine concentration through forest ecosystems, revealing distinct fractions of naturally produced organochlorine in plant biomass. Aliphatic organochlorine constitutes an intrinsic component of healthy leaves that persists through senescence and humification of the plant material, making a substantial contribution to the pool of soil organochlorine. Plant leaves also contain soluble aromatic organochlorine compounds that leach from leaf litter during early decay stages. As decay progresses, high concentrations of insoluble aromatic organochlorine accrue in the humus, through de novo production as well as adsorption. The rates of aromatic organochlorine production and degradation vary seasonally and conversely. This study presents the first unambiguous evidence that there exist multiple pools of chlorinated organic matter in the soil environment and that leaf litter deposition makes a significant and refractory contribution to the soil organochlorine pool, providing key insights into the biogeochemical chlorine cycle.

A Leri; S Myneni

2011-12-31T23:59:59.000Z

4

Parallel Computing for Terrestrial Ecosystem Carbon Modeling  

Science Conference Proceedings (OSTI)

Terrestrial ecosystems are a primary component of research on global environmental change. Observational and modeling research on terrestrial ecosystems at the global scale, however, has lagged behind their counterparts for oceanic and atmospheric systems, largely because the unique challenges associated with the tremendous diversity and complexity of terrestrial ecosystems. There are 8 major types of terrestrial ecosystem: tropical rain forest, savannas, deserts, temperate grassland, deciduous forest, coniferous forest, tundra, and chaparral. The carbon cycle is an important mechanism in the coupling of terrestrial ecosystems with climate through biological fluxes of CO{sub 2}. The influence of terrestrial ecosystems on atmospheric CO{sub 2} can be modeled via several means at different timescales. Important processes include plant dynamics, change in land use, as well as ecosystem biogeography. Over the past several decades, many terrestrial ecosystem models (see the 'Model developments' section) have been developed to understand the interactions between terrestrial carbon storage and CO{sub 2} concentration in the atmosphere, as well as the consequences of these interactions. Early TECMs generally adapted simple box-flow exchange models, in which photosynthetic CO{sub 2} uptake and respiratory CO{sub 2} release are simulated in an empirical manner with a small number of vegetation and soil carbon pools. Demands on kinds and amount of information required from global TECMs have grown. Recently, along with the rapid development of parallel computing, spatially explicit TECMs with detailed process based representations of carbon dynamics become attractive, because those models can readily incorporate a variety of additional ecosystem processes (such as dispersal, establishment, growth, mortality etc.) and environmental factors (such as landscape position, pest populations, disturbances, resource manipulations, etc.), and provide information to frame policy options for climate change impact analysis.

Wang, Dali [ORNL; Post, Wilfred M [ORNL; Ricciuto, Daniel M [ORNL; Berry, Michael [University of Tennessee, Knoxville (UTK)

2011-01-01T23:59:59.000Z

5

Using Ant Communities For Rapid Assessment Of Terrestrial Ecosystem Health  

Science Conference Proceedings (OSTI)

Measurement of ecosystem health is a very important but often difficult and sometimes fractious topic for applied ecologists. It is important because it can provide information about effects of various external influences like chemical, nuclear, and physical disturbance, and invasive species. Ecosystem health is also a measure of the rate or trajectory of degradation or recovery of systems that are currently suffering impact or those where restoration or remediation have taken place. Further, ecosystem health is the single best indicator of the quality of long term environmental stewardship because it not only provides a baseline condition, but also the means for future comparison and evaluation. Ecosystem health is difficult to measure because there are a nearly infinite number of variables and uncertainty as to which suites of variables are truly indicative of ecosystem condition. It would be impossible and prohibitively expensive to measure all those variables, or even all the ones that were certain to be valid indicators. Measurement of ecosystem health can also be a fractious topic for applied ecologists because there are a myriad of opinions as to which variables are the most important, most easily measured, most robust, and so forth. What is required is an integrative means of evaluating ecosystem health. All ecosystems are dynamic and undergo change either stochastically, intrinsically, or in response to external influences. The basic assumption about change induced by exogenous antropogenic influences is that it is directional and measurable. Historically measurements of surrogate parameters have been used in an attempt to quantify these changes, for example extensive water chemistry data in aquatic systems. This was the case until the 1980's when the Index of Biotic Integrity (IBI) (Karr et al. 1986), was developed. This system collects an array of metrics and fish community data within a stream ecosystem and develops a score or rating for the relative health of the ecosystem. The IBI, though originally for Midwestern streams, has been successfully adapted to other ecoregions and taxa (macroinvertebrates, Lombard and Goldstein, 2004) and has become an important tool for scientists and regulatory agencies alike in determining health of stream ecosystems. The IBI is a specific type of a larger group of methods and procedures referred to as Rapid Bioassessment (RBA). These protocols have the advantage of directly measuring the organisms affected by system perturbations, thus providing an integrated evaluation of system health because the organisms themselves integrate all aspects of their environment and its condition. In addition to the IBI, the RBA concept has also been applied to seep wetlands (Paller et al. 2005) and terrestrial systems (O'Connell et al. 1998, Kremen et al. 1993, Rodriguez et al. 1998, Rosenberg et al. 1986). Terrestrial RBA methods have lagged somewhat behind those for aquatic systems because terrestrial systems are less distinctly defined and seem to have a less universal distribution of an all-inclusive taxon, such as fish in the IBI, upon which to base an RBA. In the last decade, primarily in Australia, extensive development of an RBA using ant communities has shown great promise. Ants have the same advantage for terrestrial RBAs that fish do for aquatic systems in that they are an essential and ubiquitous component of virtually all terrestrial ecosystems. They occupy a broad range of niches, functional groups, and trophic levels and they possess one very important characteristic that makes them ideal for RBA because, similar to the fishes, there is a wide range of tolerance to conditions within the larger taxa. Within ant communities there are certain groups, genera, or species that may be very robust and abundant under even the harshest impacts. There are also taxa that are very sensitive to disturbance and change and their presence or absence is also indicative of the local conditions. Also, as with the aquatic RBAs using macroinvertebrates, ants have a wide variety of functional foragi

Wike, L

2005-06-01T23:59:59.000Z

6

Improving radiological assessment of doses to man from terrestrial ecosystems  

E-Print Network (OSTI)

The NKS B-programme EcoDoses project started in 2003 as a collaboration between all the Nordic countries. The aim of the project is to improve the radiological assessments of doses to man from terrestrial ecosystems. The first part, conducted in 2003, has focussed on an extensive collation and review of both published and unpublished data from all the Nordic countries for the nuclear weapons fallout period and the post-Chernobyl period. This included data on radionuclides in air filters, precipitation, soil samples, milk and reindeer. Based on this, an improved model for estimating radioactive fallout based on precipitation data during the nuclear weapons fallout period has been developed. Effective ecological half- lives for 137Cs and 90Sr in milk have been calculated for the nuclear weapons fallout period. For reindeer the ecological half- lives for 137Cs have been calculated for both the nuclear weapons fallout period and the post-Chernobyl period. The data were also used to compare modelling results with observed concentrations. This was done at a workshop where the radioecological food-and-dose module in the ARGOS decision support system was used to predict transfer of deposited radionuclides to foodstuffs and subsequent radiation doses to man. The work conducted the first year is presented in this report and gives interesting, new results relevant for terrestrial radioecology. Key words Nuclear weapons fallout, deposition modelling, food chain modelling, ecological half-lives in reindeer and milk NKS-98

Pohjoismainen Ydinturvallisuustutkimus; Edited Tone; D. Bergan; Astrid Lil

2004-01-01T23:59:59.000Z

7

Bio-char sequestration in terrestrial ecosystems–a review  

E-Print Network (OSTI)

Abstract. The application of bio-char (charcoal or biomass-derived black carbon (C)) to soil is proposed as a novel approach to establish a significant, long-term, sink for atmospheric carbon dioxide in terrestrial ecosystems. Apart from positive effects in both reducing emissions and increasing the sequestration of greenhouse gases, the production of bio-char and its application to soil will deliver immediate benefits through improved soil fertility and increased crop production. Conversion of biomass C to bio-char C leads to sequestration of about 50 % of the initial C compared to the low amounts retained after burning (3%) and biological decomposition (bio-char is highly dependent on the type of feedstock, but is not significantly affected by the pyrolysis temperature (within 350–500 ? C common for pyrolysis). Existing slash-andburn systems cause significant degradation of soil and release of greenhouse gases and opportunies may exist to enhance this system by conversion to slash-and-char systems. Our global analysis revealed that up to 12 % of the total anthropogenic C emissions by land use change (0.21 Pg C) can be off-set annually in soil, if slash-and-burn is replaced by slash-and-char. Agricultural and forestry wastes such as forest residues, mill residues, field crop residues, or urban wastes add a conservatively estimated

Johannes Lehmann; John Gaunt; Marco Rondon

2006-01-01T23:59:59.000Z

8

Carbon Sequestration in Terrestrial Ecosystems: A Status Report on R&D Progress  

NLE Websites -- All DOE Office Websites (Extended Search)

Terrestrial Ecosystems: Terrestrial Ecosystems: A Status Report on R&D Progress Gary K. Jacobs (jacobsgk@ornl.gov, 865-576-0567) Oak Ridge National Laboratory PO Box 2008, MS-6035 Oak Ridge, TN 37831 Roger C. Dahlman (roger.dahlman@science.doe.gov, 301-903-4951) Office of Science/Biological and Environmental Research U. S. Department of Energy 19901 Germantown Road Germantown, MD 20874-1290 F. Blaine Metting, Jr. (blaine.metting@pnl.gov, 509-375-2607) Pacific Northwest National Laboratory 902 Battelle Blvd. PO Box 999, P7-54 Richland, WA 99352 Introduction Sequestration of carbon in terrestrial ecosystems is a low-cost option that may be available in the near-term to mitigate increasing atmospheric CO 2 concentrations, while providing additional benefits. Storing carbon in terrestrial ecosystems can be achieved through maintenance of

9

Terrestrial Carbon Sinks for the United States Predicted from MODIS Satellite Data and Ecosystem Modeling  

Science Conference Proceedings (OSTI)

A simulation model based on satellite observations of monthly vegetation cover from the Moderate Resolution Imaging Spectroradiometer (MODIS) was used to estimate monthly carbon fluxes in terrestrial ecosystems of the conterminous United States ...

Christopher Potter; Steven Klooster; Alfredo Huete; Vanessa Genovese

2007-08-01T23:59:59.000Z

10

Assessing net ecosystem carbon exchange of U S terrestrial ecosystems by integrating eddy covariance flux measurements and satellite observations  

Science Conference Proceedings (OSTI)

More accurate projections of future carbon dioxide concentrations in the atmosphere and associated climate change depend on improved scientific understanding of the terrestrial carbon cycle. Despite the consensus that U.S. terrestrial ecosystems provide a carbon sink, the size, distribution, and interannual variability of this sink remain uncertain. Here we report a terrestrial carbon sink in the conterminous U.S. at 0.63 pg C yr 1 with the majority of the sink in regions dominated by evergreen and deciduous forests and savannas. This estimate is based on our continuous estimates of net ecosystem carbon exchange (NEE) with high spatial (1 km) and temporal (8-day) resolutions derived from NEE measurements from eddy covariance flux towers and wall-to-wall satellite observations from Moderate Resolution Imaging Spectroradiometer (MODIS). We find that the U.S. terrestrial ecosystems could offset a maximum of 40% of the fossil-fuel carbon emissions. Our results show that the U.S. terrestrial carbon sink varied between 0.51 and 0.70 pg C yr 1 over the period 2001 2006. The dominant sources of interannual variation of the carbon sink included extreme climate events and disturbances. Droughts in 2002 and 2006 reduced the U.S. carbon sink by 20% relative to a normal year. Disturbances including wildfires and hurricanes reduced carbon uptake or resulted in carbon release at regional scales. Our results provide an alternative, independent, and novel constraint to the U.S. terrestrial carbon sink.

Zhuang, Qianlai [Purdue University; Law, Beverly E. [Oregon State University; Baldocchi, Dennis [University of California, Berkeley; Ma, Siyan [University of California, Berkeley; Chen, Jiquan [University of Toledo, Toledo, OH; Richardson, Andrew [Harvard University; Melillo, Jerry [Marine Biological Laboratory; Davis, Ken J. [Pennsylvania State University; Hollinger, D. [USDA Forest Service; Wharton, Sonia [University of California, Davis; Falk, Matthias [University of California, Davis; Paw, U. Kyaw Tha [University of California, Davis; Oren, Ram [Duke University; Katulk, Gabriel G. [Duke University; Noormets, Asko [North Carolina State University; Fischer, Marc [Lawrence Berkeley National Laboratory (LBNL); Verma, Shashi [University of Nebraska; Suyker, A. E. [University of Nebraska, Lincoln; Cook, David R. [Argonne National Laboratory (ANL); Sun, G. [USDA Forest Service; McNulty, Steven G. [USDA Forest Service; Wofsy, Steve [Harvard University; Bolstad, Paul V [University of Minnesota; Burns, Sean [University of Colorado, Boulder; Monson, Russell K. [University of Colorado, Boulder; Curtis, Peter [Ohio State University, The, Columbus; Drake, Bert G. [Smithsonian Environmental Research Center, Edgewater, MD; Foster, David R. [Harvard University; Gu, Lianhong [ORNL; Hadley, Julian L. [Harvard University; Litvak, Marcy [University of New Mexico, Albuquerque; Martin, Timothy A. [University of Florida, Gainesville; Matamala, Roser [Argonne National Laboratory (ANL); Meyers, Tilden [NOAA, Oak Ridge, TN; Oechel, Walter C. [San Diego State University; Schmid, H. P. [Indiana University; Scott, Russell L. [USDA ARS; Torn, Margaret S. [Lawrence Berkeley National Laboratory (LBNL)

2011-01-01T23:59:59.000Z

11

Deep Atomic Binding (DAB) Approach in Interpretation of Fission Products Behavior in Terrestrial and Water Ecosystems  

SciTech Connect

A large number of studies and models were established to explain the fission products (FP) behavior within terrestrial and water ecosystems, but a number of behaviors were non understandable, which always attributed to unknown reasons. According to DAB hypothesis, almost all fission products behaviors in terrestrial and water ecosystems could be interpreted in a wide coincidence. The gab between former models predictions, and field behavior of fission products after accidents like Chernobyl have been explained. DAB represents a tool to reduce radio-phobia as well as radiation protection expenses. (author)

Ajlouni, Abdul-Wali M.S. [Ministry of Energy and Mineral Resources, Amman 11814 (Jordan)

2006-07-01T23:59:59.000Z

12

Carbon Sequestration in Terrestrial Ecosystems: A Status Report on R and D Progress  

DOE Green Energy (OSTI)

Sequestration of carbon in terrestrial ecosystems is a low-cost option that may be available in the near-term to mitigate increasing atmospheric CO{sub 2} concentrations, while providing additional benefits. Storing carbon in terrestrial ecosystems can be achieved through maintenance of standing aboveground biomass, utilization of aboveground biomass in long-lived products, or protection of carbon (organic and inorganic) compounds present in soils. There are potential co-benefits from efforts to sequester carbon in terrestrial ecosystems. For example, long-lived valuable products (wood) are produced, erosion would be reduced, soil productivity could be improved through increased capacity to retain water and nutrients, and marginal lands could be improved and riparian ecosystems restored. Another unique feature of the terrestrial sequestration option is that it is the only option that is ''reversible'' should it become desirable or permissible. For example, forests that are created are thus investments which could be harvested should CO{sub 2} emissions be reduced in other ways to acceptable levels 50-100 years from now.

Jacobs, G.K.

2001-08-30T23:59:59.000Z

13

Impacts of Environmental Nanoparticles on Chemical, Biological and Hydrological Processes in Terrestrial Ecosystems  

SciTech Connect

This chapter provides insights on nanoparticle (NP) influence or control on the extent and timescales of single or coupled physical, chemical, biological and hydrological reactions and processes that occur in terrestrial ecosystems. Examples taken from the literature that show how terrestrial NPs may determine the fate of the aqueous and sorbed (adsorbed or precipitated) chemical species of nutrients and contaminants, are also included in this chapter. Specifically, in the first section, chapter objectives, term definitions and discussions on size-dependent properties, the origin and occurrence of NP in terrestrial ecosystems and NP toxicity, are included. In the second section, the topic of the binary interactions of NPs of different sizes, shapes, concentrations and ages with the soil solution chemical species is covered, focusing on NP formation, stability, aggregation, ability to serve as sorbents, or surface-mediated precipitation catalysts, or electron donors and acceptors. In the third section, aspects of the interactions in the ternary systems composed of environmental NP, nutrient/contaminant chemical species, and the soil/sediment matrix are discussed, focusing on the inhibitory and catalytic effects of environmental NP on nutrient/contaminant advective mobility and mass transfer, adsorption and desorption, dissolution and precipitation and redox reactions that occur in terrestrial ecosystems. These three review sections are followed by a short summary of future research needs and directions, the acknowledgements, the list of the references, and the figures.

Qafoku, Nikolla

2012-01-01T23:59:59.000Z

14

Net primary production of terrestrial ecosystems in China and its equilibrium response to changes in climate and atmospheric CO? concentration  

E-Print Network (OSTI)

The Terrestrial Ecosystem Model (TEM, version 4.0) was used to estimate net primary production (NPP) in China for contemporary climate and NPP responses to elevated CO? and climate changes projected by three atmospheric ...

Xiao, Xiangming.; Melillo, Jerry M.; Kicklighter, David W.; Pan, Yude.; McGuire, A. David.; Helfrich III, J.V.K.

15

Genetic and Molecular Controls on Carbon Sequestration - Implications for Terrestrial Ecosystems  

NLE Websites -- All DOE Office Websites (Extended Search)

and Molecular Controls on Carbon Sequestration - Implications and Molecular Controls on Carbon Sequestration - Implications for Terrestrial Ecosystems G.A. Tuskan (tuskanga@ornl.gov; 865-576-8141) S.D. Wullschleger (wullschlegsd@ornl.gov; 865-574-7839) A.W. King (kingaw@ornl.gov; 865-576-3436) T.J. Tschaplinski (tschaplinstj@ornl.gov; 865-574-4597) L.E. Gunter (gunterle@ornl.gov; 865-574-4020) A.M. Silletti (sillettia@ornl.gov; 865-574-5397) Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge, TN 37831-6422 M. Davis (Mark_Davis@nrel.gov; 303-384-6140) National Renewable Energy Laboratory 1617 Cole Blvd. Golden, CO 80401-3322 Introduction Carbon sequestration in terrestrial vegetation and soils is a poorly understood process, but ultimately represents a summation of biological activities including the initial incorporation of

16

Methane Fluxes Between Terrestrial Ecosystems and the Atmosphere at Northern High Latitudes During the Past Century: A retrospective analysis with a process-based biogeochemistry model  

E-Print Network (OSTI)

We develop and use a new version of the Terrestrial Ecosystem Model (TEM) to study how rates of methane (CH4) emissions and consumption in high-latitude soils of the Northern Hemisphere have changed over the past century ...

Zhuang, Qianlai.

17

DOE/SC-ARM-13-011 Green Ocean Amazon Terrestrial Ecosystem Collaborati...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ecosystem Collaborative Project Science Plan J Chambers May 2013 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the...

18

Sensitivity of terrestrial ecosystems to elevated atmospheric CO{sub 2}: Comparisons of model simulation studies to CO{sub 2} effect  

Science Conference Proceedings (OSTI)

In the context of a project to compare terrestrial ecosystem models, the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP), we have analyzed how three biogeochemistry models link plant growth to doubled atmospheric CO{sub 2}. A common set of input data was used to drive three biogeochemistry models, BIOME-BGC, CENTURY and TEM. For the continental United States the simulation results show that with doubled CO{sub 2}, NPP increased by 8.7%, 5.0% and 10.8% for TEM, CENTURY and BIOME-BGC, respectively. At the biome level the range of NPP estimates varied considerably among models. TEM-simulated enhancement of NPP ranged from 2% to 28%; CENTURY, from 2% to 9%; and BIOME-BGC, from 4% to 27%. A transect analysis across several biomes along a latitude at 41.5 N shows that the TEM-simulated CO{sub 2} enhancement of NPP ranged from 0% to 22%; CENTURY, from 1% to 10% and BIOME-BGC, from 1% to 63%. In this study, we have investigated the underlying mechanisms of the three models to reveal how increased CO{sub 2} affects photosynthesis rate, water using efficiency and nutrient cycles. The relative importance of these mechanisms in each of the three biogeochemistry models will be discussed.

Pan, Y. [Marine Biological Lab., Woods Hole, MA (United States)

1995-06-01T23:59:59.000Z

19

Parameterization and Sensitivity Analysis of the BIOME–BGC Terrestrial Ecosystem Model: Net Primary Production Controls  

Science Conference Proceedings (OSTI)

Ecosystem simulation models use descriptive input parameters to establish the physiology, biochemistry, structure, and allocation patterns of vegetation functional types, or biomes. For single-stand simulations it is possible to measure required ...

Michael A. White; Peter E. Thornton; Steven W. Running; Ramakrishna R. Nemani

2000-01-01T23:59:59.000Z

20

Parameterization and sensitivity analysis of the BIOME-BGC terrestrial ecosystem model: Net primary production controls  

E-Print Network (OSTI)

ABSTRACT: Ecosystem simulation models use descriptive input parameters to establish the physiology, biochemistry, structure, and allocation patterns of vegetation functional types, or biomes. For single-stand simulations it is possible to measure required data, but as spatial resolution increases, so too does data unavailability. Generalized biome parameterizations are then required. Undocumented parameter selection and unknown model sensitivity to parameter variation for larger-resolution simulations are currently the major limitations to global and regional modeling. The authors present documented input parameters for a process-based ecosystem simulation model, BIOME– BGC, for major natural temperate biomes. Parameter groups include the following: turnover and mortality; allocation; carbon to nitrogen ratios (C:N); the percent of plant material in labile, cellulose, and lignin pools; leaf morphology; leaf conductance rates and limitations; canopy water interception and light extinction; and the percent of leaf nitrogen in Rubisco (ribulose bisphosphate-1,5-carboxylase/oxygenase) (PLNR). Using climatic and site de-

Michael A. White; Peter E. Thornton; Steven W. Running; Ramakrishna R. Nemani

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Radiological bioconcentration factors for aquatic, terrestrial, and wetland ecosystems at the Savannah River site  

SciTech Connect

Since the early 1950s, the Savannah River Site (SRS) released over 50 radionuclides into the environment while producing nuclear defense materials. These releases directly exposed aquatic and terrestrial biota to ionizing radiation from surface water, soil, and sediment, and also indirectly by the ingestion of items in the food chain. As part of new missions to develop waste management strategies and identify cost-effective environmental restoration options, knowledge concerning the uptake and distribution of these radionuclides is essential. This report compiles and summarizes site-specific bioconcentration factors for selected radionuclides released at SRS.

Friday, G.P.; Cummins, C.L.; Schwartzman, A.L.

1996-12-31T23:59:59.000Z

22

A hierarchical analysis of terrestrial ecosystem model Biome-BGC: Equilibrium analysis and model calibration  

Science Conference Proceedings (OSTI)

The increasing complexity of ecosystem models represents a major difficulty in tuning model parameters and analyzing simulated results. To address this problem, this study develops a hierarchical scheme that simplifies the Biome-BGC model into three functionally cascaded tiers and analyzes them sequentially. The first-tier model focuses on leaf-level ecophysiological processes; it simulates evapotranspiration and photosynthesis with prescribed leaf area index (LAI). The restriction on LAI is then lifted in the following two model tiers, which analyze how carbon and nitrogen is cycled at the whole-plant level (the second tier) and in all litter/soil pools (the third tier) to dynamically support the prescribed canopy. In particular, this study analyzes the steady state of these two model tiers by a set of equilibrium equations that are derived from Biome-BGC algorithms and are based on the principle of mass balance. Instead of spinning-up the model for thousands of climate years, these equations are able to estimate carbon/nitrogen stocks and fluxes of the target (steady-state) ecosystem directly from the results obtained by the first-tier model. The model hierarchy is examined with model experiments at four AmeriFlux sites. The results indicate that the proposed scheme can effectively calibrate Biome-BGC to simulate observed fluxes of evapotranspiration and photosynthesis; and the carbon/nitrogen stocks estimated by the equilibrium analysis approach are highly consistent with the results of model simulations. Therefore, the scheme developed in this study may serve as a practical guide to calibrate/analyze Biome-BGC; it also provides an efficient way to solve the problem of model spin-up, especially for applications over large regions. The same methodology may help analyze other similar ecosystem models as well.

Thornton, Peter E [ORNL; Wang, Weile [ORNL; Law, Beverly E. [Oregon State University; Nemani, Ramakrishna R [NASA Ames Research Center

2009-01-01T23:59:59.000Z

23

Radiological bioconcentration factors for aquatic, terrestrial, and wetland ecosystems at the Savannah River Site  

Science Conference Proceedings (OSTI)

As a result of operations at the Savannah River Site (SRS), over 50 radionuclides have been released to the atmosphere and to onsite streams and seepage basins. Now, many of these radionuclides are available to aquatic and/or terrestrial organisms for uptake and cycling through the food chain. Knowledge about the uptake and cycling of these radionuclides is now crucial in evaluating waste management and clean-up alternatives for the site. Numerous studies have been conducted at the SRS over the past forty years to study the uptake and distribution of radionuclides in the Savannah River Site environment. In many instances, bioconcentration factors have been calculated to quantify the uptake of a radionuclide by an organism from the surrounding medium (i.e., soil or water). In the past, it has been common practice to use bioconcentration factors from the literature because site-specific data were not readily available. However, because of the variability of bioconcentration factors due to experimental or environmental conditions, site-specific data should be used when available. This report compiles and summarizes site-specific bioconcentration factors for selected radionuclides released at the Savannah River Site (SRS). An extensive literature search yielded site-specific bioconcentration factors for cesium, strontium, cobalt, plutonium, americium, curium, and tritium. These eight radionuclides have been the primary radionuclides studied at SRS because of their long half lives or because they are major contributors to radiological dose from exposure. For most radionuclides, it was determined that the site-specific bioconcentration factors were higher than those reported in literature. This report also summarizes some conditions that affect radionuclide bioavailability to and bioconcentration by aquatic and terrestrial organisms.

Cummins, C.L.

1994-09-01T23:59:59.000Z

24

The REFLEX project: Comparing different algorithms and implementations for the inversion of a terrestrial ecosystem model against eddy covariance data  

DOE Green Energy (OSTI)

We describe a model-data fusion (MDF) inter-comparison project (REFLEX), which compared various algorithms for estimating carbon (C) model parameters consistent with both measured carbon fluxes and states and a simple C model. Participants were provided with the model and with both synthetic net ecosystem exchange (NEE) ofCO2 and leaf area index (LAI) data, generated from the model with added noise, and observed NEE and LAI data from two eddy covariance sites. Participants endeavoured to estimate model parameters and states consistent with the model for all cases over the two years for which data were provided, and generate predictions for one additional year without observations. Nine participants contributed results using Metropolis algorithms, Kalman filters and a genetic algorithm. For the synthetic data case, parameter estimates compared well with the true values. The results of the analyses indicated that parameters linked directly to gross primary production (GPP) and ecosystem respiration, such as those related to foliage allocation and turnover, or temperature sensitivity of heterotrophic respiration,were best constrained and characterised. Poorly estimated parameters were those related to the allocation to and turnover of fine root/wood pools. Estimates of confidence intervals varied among algorithms, but several algorithms successfully located the true values of annual fluxes from synthetic experiments within relatively narrow 90% confidence intervals, achieving>80% success rate and mean NEE confidence intervals <110 gCm-2 year-1 for the synthetic case. Annual C flux estimates generated by participants generally agreed with gap-filling approaches using half-hourly data. The estimation of ecosystem respiration and GPP through MDF agreed well with outputs from partitioning studies using half-hourly data. Confidence limits on annual NEE increased by an average of 88% in the prediction year compared to the previous year, when data were available. Confidence intervals on annual NEE increased by 30% when observed data were used instead of synthetic data, reflecting and quantifying the addition of model error. Finally, our analyses indicated that incorporating additional constraints, using data on C pools (wood, soil and fine roots) would help to reduce uncertainties for model parameters poorly served by eddy covariance data.

Fox, Andrew [University of Sheffield; Williams, Mathew [University of Edinburgh; Richardson, Andrew D. [Harvard University; Cameron, David [Centre for Ecology and Hydrology, Bush Estate; Gove, Jeffrey H. [USDA Forest Service; Quaife, Tristan [University College, London; Ricciuto, Daniel M [ORNL; Reichstein, Markus [Max Planck Institute for Biogeochemistry; Tomelleri, Enrico [Max Planck Institute for Biogeochemistry; Trudinger, Cathy [CSIRO Marine and Atmospheric Research; Van Wijk, Mark T. [Wageningen University and Research Centre, The Netherlands

2009-10-01T23:59:59.000Z

25

Description, calibration and sensitivity analysis of the local ecosystem submodel of a global model of carbon and nitrogen cycling and the water balance in the terrestrial biosphere  

Science Conference Proceedings (OSTI)

We have developed a geographically-distributed ecosystem model for the carbon, nitrogen, and water dynamics of the terrestrial biosphere TERRA. The local ecosystem model of TERRA consists of coupled, modified versions of TEM and DAYTRANS. The ecosystem model in each grid cell calculates water fluxes of evaporation, transpiration, and runoff; carbon fluxes of gross primary productivity, litterfall, and plant and soil respiration; and nitrogen fluxes of vegetation uptake, litterfall, mineralization, immobilization, and system loss. The state variables are soil water content; carbon in live vegetation; carbon in soil; nitrogen in live vegetation; organic nitrogen in soil and fitter; available inorganic nitrogen aggregating nitrites, nitrates, and ammonia; and a variable for allocation. Carbon and nitrogen dynamics are calibrated to specific sites in 17 vegetation types. Eight parameters are determined during calibration for each of the 17 vegetation types. At calibration, the annual average values of carbon in vegetation C, show site differences that derive from the vegetation-type specific parameters and intersite variation in climate and soils. From calibration, we recover the average C{sub v} of forests, woodlands, savannas, grasslands, shrublands, and tundra that were used to develop the model initially. The timing of the phases of the annual variation is driven by temperature and light in the high latitude and moist temperate zones. The dry temperate zones are driven by temperature, precipitation, and light. In the tropics, precipitation is the key variable in annual variation. The seasonal responses are even more clearly demonstrated in net primary production and show the same controlling factors.

Kercher, J.R. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States); Chambers, J.Q. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States); [California Univ., Santa Barbara, CA (United States). Dept. of Biological Sciences

1995-10-01T23:59:59.000Z

26

Final Report on "Rising CO2 and Long-term Carbon Storage in Terrestrial Ecosystems: An Empirical Carbon Budget Validation"  

SciTech Connect

The primary goal of this report is to report the results of Grant DE-FG02-97ER62458, which began in 1997 as Grant DOE-98-59-MP-4 funded through the TECO program. However, this project has a longer history because DOE also funded this study from its inception in 1985 through 1997. The original grant was focused on plant responses to elevated CO2 in an intact ecosystem, while the latter grant was focused on belowground responses. Here we summarize the major findings across the 25 years this study has operated, and note that the experiment will continue to run through 2020 with NSF support. The major conclusions of the study to date are: (1 Elevated CO2 stimulated plant productivity in the C3 plant community by ~30% during the 25 year study. The magnitude of the increase in productivity varied interannually and was sometime absent altogether. There is some evidence of down-regulation at the ecosystem level across the 25 year record that may be due to interactions with other factors such as sea-level rise or long-term changes in N supply; (2) Elevated CO2 stimulated C4 productivity by <10%, perhaps due to more efficient water use, but C3 plants at elevated CO2 did not displace C4 plants as predicted; (3) Increased primary production caused a general stimulation of microbial processes, but there were both increases and decreases in activity depending on the specific organisms considered. An increase in methanogenesis and methane emissions implies elevated CO2 may amplify radiative forcing in the case of wetland ecosystems; (4) Elevated CO2 stimulated soil carbon sequestration in the form of an increase in elevation. The increase in elevation is 50-100% of the increase in net ecosystem production caused by elevated CO2 (still under analysis). The increase in soil elevation suggests the elevated CO2 may have a positive outcome for the ability of coastal wetlands to persist despite accelerated sea level rise; (5) Crossing elevated CO2 with elevated N causes the elevated CO2 effect to diminish, with consequences for change in soil elevation.

J. Patrick Megonigal; Bert G. Drake

2010-08-27T23:59:59.000Z

27

Final Report on "Rising CO2 and Long-term Carbon Storage in Terrestrial Ecosystems: An Empirical Carbon Budget Validation"  

Science Conference Proceedings (OSTI)

The primary goal of this report is to report the results of Grant DE-FG02-97ER62458, which began in 1997 as Grant DOE-98-59-MP-4 funded through the TECO program. However, this project has a longer history because DOE also funded this study from its inception in 1985 through 1997. The original grant was focused on plant responses to elevated CO2 in an intact ecosystem, while the latter grant was focused on belowground responses. Here we summarize the major findings across the 25 years this study has operated, and note that the experiment will continue to run through 2020 with NSF support. The major conclusions of the study to date are: (1 Elevated CO2 stimulated plant productivity in the C3 plant community by ~30% during the 25 year study. The magnitude of the increase in productivity varied interannually and was sometime absent altogether. There is some evidence of down-regulation at the ecosystem level across the 25 year record that may be due to interactions with other factors such as sea-level rise or long-term changes in N supply; (2) Elevated CO2 stimulated C4 productivity by CO2 did not displace C4 plants as predicted; (3) Increased primary production caused a general stimulation of microbial processes, but there were both increases and decreases in activity depending on the specific organisms considered. An increase in methanogenesis and methane emissions implies elevated CO2 may amplify radiative forcing in the case of wetland ecosystems; (4) Elevated CO2 stimulated soil carbon sequestration in the form of an increase in elevation. The increase in elevation is 50-100% of the increase in net ecosystem production caused by elevated CO2 (still under analysis). The increase in soil elevation suggests the elevated CO2 may have a positive outcome for the ability of coastal wetlands to persist despite accelerated sea level rise; (5) Crossing elevated CO2 with elevated N causes the elevated CO2 effect to diminish, with consequences for change in soil elevation.

J. Patrick Megonigal; Bert G. Drake

2010-08-27T23:59:59.000Z

28

ORNL DAAC, Biogeochemical Parameters for Ecosystem Modeling,...  

NLE Websites -- All DOE Office Websites (Extended Search)

Parameters for Ecosystem Modeling The ORNL DAAC announces the release of a data set entitled "Literature-Derived Parameters for the BIOME-BGC Terrestrial Ecosystem...

29

Terrestrial Sequestration Program  

NLE Websites -- All DOE Office Websites (Extended Search)

TerresTrial sequesTraTion Program TerresTrial sequesTraTion Program Capture and Storage of Carbon in Terrestrial Ecosystems Background Clean, affordable energy is essential for U.S. prosperity and security in the 21st century. More than half of the electricity currently generated in the United States comes from coal-fired boilers, and there is little indication that this percentage will diminish through 2020 and beyond. In addition, the use of coal for electricity generation is projected to more than double in developing nations by 2020. This ever growing demand for fossil-fuel-based power and the consequential rise in atmospheric carbon dioxide (CO 2 ) concentrations requires innovative methods to capture and store CO 2 . Terrestrial ecosystems, which include both soil and vegetation, are widely recognized

30

Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions and a new approach for estimating net ecosystem exchange from inventory-based data  

Science Conference Proceedings (OSTI)

While fossil fuel emissions are calculated with relatively high precision, understanding the fate of those emissions with respect to sequestration in terrestrial ecosystems requires data and methods that can reduce uncertainties in the diagnosis of land-based CO2 sinks. The wide range in the land surface flux estimates is related to a number of factors, but most generally because of the different methodologies used to develop estimates of carbon stocks and flux, and the uncertainties inherent in each approach. The alternative approaches to estimating continental scale carbon fluxes that we explored here can be broadly classified as applying a top-down or bottom-up perspective. Top-down approaches calculate land-atmosphere carbon fluxes based on atmospheric budgets and inverse modeling. Bottom-up approaches rely primarily on measurements of carbon stock changes (the inventory approach) or on spatially distributed simulations of carbon stocks and/or fluxes using process-based modeling (the forward modelapproach).

Hayes, D. J.; Turner, D. P.; Stinson, Graham; McGuire, A. David; Wei, Yaxing; West, Tristram O.; Heath, L.; deJong, B.; McConkey, Brian; Birdsey, Richard A.; Kurz, Werner; Jacobson, Andy; Huntzinger, Deborah N.; Pan, Y.; Post, W. M.; Cook, R. B.

2012-04-02T23:59:59.000Z

31

Links  

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Links: Anderson County Government Emergency Management Anderson County Local Emergency Planning Committee (LEPC) City of Oak Ridge Fire Department Knoxville-Knox County Emergency...

32

Links  

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Links Links Dedicated links pages are available for the following topics: Diesel Vehicles and Fuels Electric Vehicles Fuel Cell Vehicles Hybrids Plug-in Hybrids Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov Web site. We offer these external links for your convenience in accessing additional information that may be useful or interesting to you. Auto Manufacturers Acura Aston Martin Audi Bentley BMW Bugatti Buick Cadillac Chevrolet Chrysler Dodge Ferrari Fiat Ford GMC Honda Hyundai Infiniti Jaguar Jeep Kia Lamborghini Land Rover Lexus Lincoln Lotus Maserati Maybach Mazda McLaren Automotive Mercedes-Benz MINI Mitsubishi Nissan Porsche Ram Rolls Royce Roush Performance Scion smart Spyker Subaru Suzuki Toyota Volkswagen Volvo VPG Buying Guides ACEEE's Green Book Aol Autos

33

RADIATION DOSE ASSESSMENT FOR THE BIOTA OF TERRESTRIAL ECOSYSTEMS IN THE SHORELINE ZONE OF THE CHERNOBYL NUCLEAR POWER PLANT COOLING POND  

Science Conference Proceedings (OSTI)

Radiation exposure of the biota in the shoreline area of the Chernobyl Nuclear Power Plant Cooling Pond was assessed to evaluate radiological consequences from the decommissioning of the Cooling Pond. The article addresses studies of radioactive contamination of the terrestrial faunal complex and radionuclide concentration ratios in bodies of small birds, small mammals, amphibians, and reptiles living in the area. The data were used to calculate doses to biota using the ERICA Tool software. Doses from {sup 90}Sr and {sup 137}Cs were calculated using the default parameters of the ERICA Tool and were shown to be consistent with biota doses calculated from the field data. However, the ERICA dose calculations for plutonium isotopes were much higher (2-5 times for small mammals and 10-14 times for birds) than the doses calculated using the experimental data. Currently, the total doses for the terrestrial biota do not exceed maximum recommended levels. However, if the Cooling Pond is allowed to drawdown naturally and the contaminants of the bottom sediments are exposed and enter the biological cycle, the calculated doses to biota may exceed the maximum recommended values. The study is important in establishing the current exposure conditions such that a baseline exists from which changes can be documented following the lowering of the reservoir water. Additionally, the study provided useful radioecological data on biota concentration ratios for some species that are poorly represented in the literature.

Farfan, E.; Jannik, T.

2011-10-01T23:59:59.000Z

34

Land-Use and Ecosystems  

NLE Websites -- All DOE Office Websites (Extended Search)

Land-Use and Ecosystems Terrestrial Carbon Management Data Sets and Analyses National Land Cover Data 1992 (2005), and 2001 (2008) Carbon Flux to the Atmosphere from Land-Use...

35

Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Public Outreach Clint Sprott's Wonders of Physics from University of Wisconsin, Madison Clint Sprott's Physics Demo Manual Phun Physics shows from University of Virginia Physics Van from Universitiy of Illinois, Urbana-Champaign How Does A Thing Like That Work from University of Pittsburgh Physics on the Road from Purdue University The Mad Science Group University Catalogues of Demonstrations Boston Univeristy's physics demonstrations University of Victoria physics demonstrations Wesleyan University physics demonstrations University of Minnesota, The Origin of the DCS Physics Demonstrations at the University of Texas at Austin University of Maryland University of Wisconsin University of Guelph University of Oregon Brown Physics Lecture Demonstrations University of California, Berkeley

36

Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions and a new approach for estimating net ecosystem exchange from inventory-based data  

Science Conference Proceedings (OSTI)

We develop an approach for estimating net ecosystem exchange (NEE) using inventory-based information over North America (NA) for a recent 7-year period (ca. 2000 2006). The approach notably retains information on the spatial distribution of NEE, or the vertical exchange between land and atmosphere of all non-fossil fuel sources and sinks of CO2, while accounting for lateral transfers of forest and crop products as well as their eventual emissions. The total NEE estimate of a 327 252 TgC yr1 sink for NA was driven primarily by CO2 uptake in the Forest Lands sector (248 TgC yr1), largely in the Northwest and Southeast regions of the US, and in the Crop Lands sector (297 TgC yr1), predominantly in the Midwest US states. These sinks are counteracted by the carbon source estimated for the Other Lands sector (+218 TgC yr1), where much of the forest and crop products are assumed to be returned to the atmosphere (through livestock and human consumption). The ecosystems of Mexico are estimated tobe a small net source (+18 TgC yr1) due to land use change between 1993 and 2002. We compare these inventorybased estimates with results from a suite of terrestrial biosphere and atmospheric inversion models, where the mean continental-scale NEE estimate for each ensemble is 511 TgC yr1 and 931 TgC yr1, respectively. In the modeling approaches, all sectors, including Other Lands, were generally estimated to be a carbon sink, driven in part by assumed CO2 fertilization and/or lack of consideration of carbon sources from disturbances and product emissions. Additional fluxes not measured by the inventories, although highly uncertain, could add an additional 239 TgC yr1 to the inventory-based NA sink estimate, thus suggesting some convergence with the modeling approaches.

Hayes, Daniel J [ORNL; Turner, David P [Oregon State University, Corvallis; Stinson, Graham [Pacific Forestry Centre, Canadian Forest Service; Mcguire, David [University of Alaska; Wei, Yaxing [ORNL; West, Tristram O. [Joint Global Change Research Institute, PNNL; Heath, Linda S. [USDA Forest Service; De Jong, Bernardus [ECOSUR; McConkey, Brian G. [Agriculture and Agri-Food Canada; Birdsey, Richard A. [U.S. Department of Agriculture Forest Service; Kurz, Werner [Canadian Forest Service; Jacobson, Andrew [NOAA ESRL and CIRES; Huntzinger, Deborah [University of Michigan; Pan, Yude [U.S. Department of Agriculture Forest Service; Post, Wilfred M [ORNL; Cook, Robert B [ORNL

2012-01-01T23:59:59.000Z

37

Total Ecosystem Approach to Terrestrial Carbon Sequestration  

NLE Websites -- All DOE Office Websites (Extended Search)

7RWDO(FRV\VWHP$SSURDFKWR 7RWDO(FRV\VWHP$SSURDFKWR 7HUUHVWULDO&DUERQ 6HTXHVWUDWLRQ Coal Industry Perspective November 6, 2001 685)$&(0,1,1* * Surface mining is the preferred mining method - Cheaper - Employees are above ground - More coal is recovered - Less preparation (washing) required * Prior to 1977 overburden (soil) was left loose (uncompacted) - Many disturbed areas have supported growth of new forest with growth rates greater than adjacent undisturbed lands 685)$&(0,1($&72) * Act Required Mine Operators to take steps to reclaim mined lands. - Post Reclamation Bond - Return Land to Approximate Original Contour * Mining Companies routinely made the surface smooth by making multiple passes over the surface compacting soils 5(&/$,0('0,1(/$1'327(17,$/

38

Strong Links Between Teleconnections and Ecosystem Exchange Found at a Pacific Northwest Old-Growth Forest from Flux Tower and MODIS EVI Data  

SciTech Connect

Variability in three Pacific teleconnection patterns are examined to see if net carbon exchange at a low-elevation, old-growth forest is affected by climatic changes associated with these periodicities. Examined are the Pacific Decadal Oscillation (PDO), Pacific/North American Oscillation (PNA) and El Nino-Southern Oscillation (ENSO). We use nine years of eddy covariance CO{sub 2}, H{sub 2}O and energy fluxes measured at the Wind River AmeriFlux site, Washington, USA and eight years of tower-pixel remote sensing data from the Moderate Resolution Imaging Spectroradiometer (MODIS) to address this question. We compute a new Composite Climate Index (CCI) based on the three Pacific Oscillations to divide the measurement period into positive- (2003 and 2005), negative- (1999 and 2000) and neutral-phase climate years (2001, 2002, 2004, 2006 and 2007). The forest transitioned from an annual net carbon sink (NEP = + 217 g C m{sup -2} year{sup -1}, 1999) to a source (NEP = - 100 g C m{sup -2} year{sup -1}, 2003) during two dominant teleconnection patterns. Net ecosystem productivity (NEP), water use efficiency (WUE) and light use efficiency (LUE) were significantly different (P < 0.01) during positive (NEP = -0.27 g C m{sup -2} day{sup -1}, WUE = 4.1 mg C/g H{sub 2}O, LUE = 0.94 g C MJ{sup -1}) and negative (NEP = +0.37 g C m{sup -2} day{sup -1}, WUE = 3.4 mg C/g H{sub 2}O, LUE = 0.83 g C MJ{sup -1}) climate phases. The CCI was linked to variability in the MODIS Enhanced Vegetation Index (EVI) but not to MODIS Fraction of absorbed Photosynthetically Active Radiation (FPAR). EVI was highest during negative climate phases (1999 and 2000) and was positively correlated with NEP and showed potential for using MODIS to estimate teleconnection-driven anomalies in ecosystem CO{sub 2} exchange in old-growth forests. This work suggests that any increase in the strength or frequency of ENSO coinciding with in-phase, low frequency Pacific oscillations (PDO and PNA) will likely increase CO{sub 2} uptake variability in Pacific Northwest conifer forests.

Wharton, S; Chasmer, L; Falk, M; Paw U, K T

2009-03-12T23:59:59.000Z

39

Progress report on terrestrial model development (TERRA and HABITAT): Research in support of the CERES earth system modeling project  

SciTech Connect

Although there is only a developing understanding of the many processes affecting and coupling the atmosphere, oceans, and land systems of the earth, we are embarked on an effort to construct a prototype model (CERES) of the full Earth system. As part of this effort, we have proposed to the EPA to construct an Earth System Framework for the CERES model that supports flexible, modular development, coupling, and replacement of Earth System submodel components. This project has two specific areas of study. These areas are (1) the terrestrial contribution to the biogeochemical cycling and (2) the interactions of climate and the land ecosystems. The objectives of these two areas of study are: development of a globally distributed model of terrestrial ecosystem productivity, linking model to the submodels, using coupled system to explore biogeochemical cycles, exploration of greenhouse effect, development of models of surface, and the study of the dynamics of climate change and vegetation response.

Kercher, J.R.; Axelrod, M.C.; Amthor, J.S. [Lawrence Livermore National Lab., CA (United States); Chambers, J.Q. [Lawrence Livermore National Lab., CA (United States)]|[California Univ., Santa Barbara, CA (United States). Dept. of Biological Sciences

1994-05-01T23:59:59.000Z

40

Terrestrial Ecology | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Terrestrial Ecology BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne Terrestrial...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Pages that link to "Centro de Energías Renovables (CER)" | Open...  

Open Energy Info (EERE)

Webinar ( links) Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model ( links) Biopower Tool Webinar ( links) Gateway:Amrica...

42

Linking ecosystem scale vegetation change to shifts in carbon and water cycling: the consequences of widespread piñon mortality in the Southwest  

DOE Green Energy (OSTI)

The southwestern United States experienced an extended drought from 1999-2002 which led to widespread coniferous tree mortality. Piñon-juniper (PJ) woodlands, which occupy 24 million ha throughout the Southwest, were extremely vulnerable to this drought. An abrupt die-off of 40 to 95% of piñon pine (Pinus edulis) and 2-25% of juniper (Juniperus monosperma) across 1.5 million ha triggered rapid and extensive changes in the structure of PJ woodlands with potentially large, yet unknown, consequences for ecosystem services and feedbacks between the carbon cycle and climate system. Given the spatial extent of PJ woodlands (3rd largest biome in the US) and climatic predictions of increased frequency and intensity of drought in the region, it is crucial to understand the consequences of these disturbances on regional carbon and energy dynamics, biogeochemical processes and atmospheric CO2. The overall objective of our research was to quantify what impact widespread mortality of piñon trees has for carbon and water cycling in PJ woodlands. Our specific objectives for this proposal were: 1) Quantify the carbon, water and energy exchange trajectory after mortality in PJ woodlands; 2) Determine the mechanisms controlling the response and recovery of ecosystem production and respiration processes following large-scale piñon mortality; 3) Use the relationships we measure between ecosystem structure and function PJ woodlands recover from mortality to scale the results of our study up to the regional scale.

Litvak, Marcy Ellen [University of New Mexico

2012-10-01T23:59:59.000Z

43

Water-Use Efficiency of the Terrestrial Biosphere: A Model Analysis Focusing on Interactions between the Global Carbon and Water Cycles  

Science Conference Proceedings (OSTI)

Carbon and water cycles are intimately coupled in terrestrial ecosystems, and water-use efficiency (WUE; carbon gain at the expense of unit water loss) is one of the key parameters of ecohydrology and ecosystem management. In this study, the ...

Akihiko Ito; Motoko Inatomi

2012-04-01T23:59:59.000Z

44

Dynamic Response of Terrestrial Hydrological Cycles and Plant Water Stress to Climate Change in China  

Science Conference Proceedings (OSTI)

Rising atmospheric CO2 concentration CO2 and climate change are expected to have a major effect on terrestrial ecosystem hydrological cycles and plant water stress in the coming decades. The present study investigates the potential responses of ...

Fulu Tao; Zhao Zhang

2011-06-01T23:59:59.000Z

45

Terrestrial biogeochemical feedbacks in the climate system: from past to future  

Science Conference Proceedings (OSTI)

The terrestrial biosphere plays a major role in the regulation of atmospheric composition, and hence climate, through multiple interlinked biogeochemical cycles (BGC). Ice-core and other palaeoenvironmental records show a fast response of vegetation cover and exchanges with the atmosphere to past climate change, although the phasing of these responses reflects spatial patterning and complex interactions between individual biospheric feedbacks. Modern observations show a similar responsiveness of terrestrial biogeochemical cycles to anthropogenically-forced climate changes and air pollution, with equally complex feedbacks. For future conditions, although carbon cycle-climate interactions have been a major focus, other BGC feedbacks could be as important in modulating climate changes. The additional radiative forcing from terrestrial BGC feedbacks other than those conventionally attributed to the carbon cycle is in the range of 0.6 to 1.6 Wm{sup -2}; all taken together we estimate a possible maximum of around 3 Wm{sup -2} towards the end of the 21st century. There are large uncertainties associated with these estimates but, given that the majority of BGC feedbacks result in a positive forcing because of the fundamental link between metabolic stimulation and increasing temperature, improved quantification of these feedbacks and their incorporation in earth system models is necessary in order to develop coherent plans to manage ecosystems for climate mitigation.

Arneth, A.; Harrison, S. P.; Zaehle, S.; Tsigaridis, K; Menon, S; Bartlein, P.J.; Feichter, J; Korhola, A; Kulmala, M; O'Donnell, D; Schurgers, G; Sorvari, S; Vesala, T

2010-01-05T23:59:59.000Z

46

BSCSP Terrestrial Factsheet 2009  

NLE Websites -- All DOE Office Websites (Extended Search)

Big Sky Carbon Sequestration Partnership - Terrestrial Sequestration 1 FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST Partnership Name Big Sky Carbon Sequestration Partnership...

47

Projected Future Carbon Storage and Greenhouse-Gas Fluxes of Terrestrial  

E-Print Network (OSTI)

Projected Future Carbon Storage and Greenhouse-Gas Fluxes of Terrestrial Ecosystems in the Western. Sleeter Chapter 9 of Baseline and Projected Future Carbon Storage and Greenhouse-Gas Fluxes in Ecosystems.L., Hawbaker, T.J., and Sleeter, B.M., 2012, Projected future carbon storage and greenhouse gas fluxes

Fleskes, Joe

48

Land conversion in Amazonia and Northern South America : influences on regional hydrology and ecosystem response  

E-Print Network (OSTI)

A numerical model of the terrestrial biosphere (Ecosystem Demography Model) is compbined with an atmospheric model (Brazilian Regional Atmospheric Modeling System) to investigate how land conversion in the Amazon and ...

Knox, Ryan Gary

2013-01-01T23:59:59.000Z

49

Consequences of Considering Carbon/Nitrogen Interactions on the Feedbacks between Climate and the Terrestrial Carbon Cycle  

E-Print Network (OSTI)

A number of observational studies indicate that carbon sequestration by terrestrial ecosystems in a world with an atmosphere richer in carbon dioxide and a warmer climate depends on the interactions between the carbon and ...

Sokolov, Andrei P.

50

Consequences of Considering Carbon–Nitrogen Interactions on the Feedbacks between Climate and the Terrestrial Carbon Cycle  

Science Conference Proceedings (OSTI)

The impact of carbon–nitrogen dynamics in terrestrial ecosystems on the interaction between the carbon cycle and climate is studied using an earth system model of intermediate complexity, the MIT Integrated Global Systems Model (IGSM). Numerical ...

Andrei P. Sokolov; David W. Kicklighter; Jerry M. Melillo; Benjamin S. Felzer; C. Adam Schlosser; Timothy W. Cronin

2008-08-01T23:59:59.000Z

51

Innovation Ecosystem Development Initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Trust Location: Chicago, IL Project Title Illinois Cleantech Ecosystem Consortium (ICE) Proposed Action or Project Description The Illinois Cleantech Ecosystem Consortium, a...

52

Simulation and Evaluation of Terrestrial Ecosystem NPP with M ...  

Science Conference Proceedings (OSTI)

climate monthly data set (Mitchell and Jones, 2005) that was used to create daily ... soil data set from the Food and Agriculture Organiza- tion (FAO) (Batjes et al., ...

53

Enhancing terrestrial ecosystem sciences by integrating empirical-modeling approaches  

SciTech Connect

Field and laboratory experiments and observations, along with models, are foundational approaches to scientific inquiry. Integration of these approaches, however, can be an exceedingly difficult challenge because empiricists and modelers often work in communities separated by cultural differences and communication barriers, reflecting a largely independent evolution of these disciplines. To address this challenge, more than 40 participants gathered for a 3-day workshop to discuss how models can best inform empirical experiments, how data can most effectively inform models, and what strategies can be employed to integrate these two approaches. The workshop was convened with the understanding that such a priori exchange between the empirical and modeling communities can maximize intellectual investments and result in high-quality predictive models and more scientific discovery.

Lee, Hanna [National Center for Atmospheric Research (NCAR); Wullschleger, Stan D [ORNL; Luo, Yiqi [University of Oklahoma

2012-01-01T23:59:59.000Z

54

DOE Terrestrial Ecosystem and Carbon Cycle Science Team Meeting  

NLE Websites -- All DOE Office Websites (Extended Search)

1:45 PM Comments about Replication and Statistical Uncertainty - Steve Long 2:00 PM Crop Responses to Elevated CO2 - Bruce Kimball 2:20 PM The FACE Network - Bob NowakStan...

55

Coreless Terrestrial Exoplanets  

E-Print Network (OSTI)

Differentiation in terrestrial planets is expected to include the formation of a metallic iron core. We predict the existence of terrestrial planets that have differentiated but have no metallic core--planets that are effectively a giant silicate mantle. We discuss two paths to forming a coreless terrestrial planet, whereby the oxidation state during planetary accretion and solidification will determine the size or existence of any metallic core. Under this hypothesis, any metallic iron in the bulk accreting material is oxidized by water, binding the iron in the form of iron oxide into the silicate minerals of the planetary mantle. The existence of such silicate planets has consequences for interpreting the compositions and interior density structures of exoplanets based on their mass and radius measurements.

L. Elkins-Tanton; S. Seager

2008-08-13T23:59:59.000Z

56

Terrestrial Carbon Management  

NLE Websites -- All DOE Office Websites (Extended Search)

Terrestrial Carbon Management Data Sets and Analyses Terrestrial Carbon Management Data Sets and Analyses Carbon Accumulation with Cropland Management Influence of Agricultural Management on Soil Organic Carbon: A Compendium and Assessment of Canadian Studies (VandenBygaart et al., Agriculture and Agri-Food Canada) Soil Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis (West and Post, Oak Ridge National Laboratory) Preliminary Estimates of the Potential for Carbon Mitigation in European Soils Through No-Till Farming (Smith et al., University of Aberdeen, United Kingdom) Potential for Carbon Sequestration in European Soils: Preliminary Estimates for Five Scenarios Using Results from Long-Term Experiments (Smith et al., University of Aberdeen, United Kingdom) Carbon Accumulation with Grassland Management

57

Recent Climate-Driven Increases in Vegetation Productivity for the Western Arctic: Evidence of an Acceleration of the Northern Terrestrial Carbon Cycle  

Science Conference Proceedings (OSTI)

Northern ecosystems contain much of the global reservoir of terrestrial carbon that is potentially reactive in the context of near-term climate change. Annual variability and recent trends in vegetation productivity across Alaska and northwest ...

J. S. Kimball; M. Zhao; A. D. McGuire; F. A. Heinsch; J. Clein; M. Calef; W. M. Jolly; S. Kang; S. E. Euskirchen; K. C. McDonald; S. W. Running

2007-02-01T23:59:59.000Z

58

The IC Brazil ecosystem  

Science Conference Proceedings (OSTI)

Brazilian Government has done a strong effort to develop the Microelectronics area in Brazil. An ecosystem of communities interested to rethink the insertion of Brazil in the important market of semiconductors. Important questions should be considered ... Keywords: IC projects, IT ecosystems and e-government, collaborative ecosystems, education, semiconductors

Oscar S. Silva Filho

2013-10-01T23:59:59.000Z

59

Skipso - The Cleantech Ecosystem | Open Energy Information  

Open Energy Info (EERE)

Skipso - The Cleantech Ecosystem Skipso - The Cleantech Ecosystem Jump to: navigation, search Logo: Skipso - The Cleantech Ecosystem Name Skipso - The Cleantech Ecosystem Address 31 Theobals Road Place London, United Kingdom Number of employees 1-10 Year founded 2008 Phone number +447796276923 Website http://www.skipso.com Coordinates 51.5203543°, -0.117755° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.5203543,"lon":-0.117755,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

60

Climate control of terrestrial carbon exchange across biomes and continents  

Science Conference Proceedings (OSTI)

Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2 exchange with the atmosphere across biomes and continents are lacking. Here we present data describing the relationships between net ecosystem exchange of carbon (NEE) and climate factors as measured using the eddy covariance method at 125 unique sites in various ecosystems over six continents with a total of 559 site-years. We find that NEE observed at eddy covariance sites is (1) a strong function of mean annual temperature at mid- and high-latitudes, (2) a strong function of dryness at mid- and low-latitudes, and (3) a function of both temperature and dryness around the mid-latitudinal belt (45 N). The sensitivity of NEE to mean annual temperature breaks down at ~ 16 C (a threshold value of mean annual temperature), above which no further increase of CO2 uptake with temperature was observed and dryness influence overrules temperature influence.

Ricciuto, Daniel M [ORNL; Gu, Lianhong [ORNL

2010-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

DOE Manual Studies Terrestrial Carbon Sequestration | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Manual Studies Terrestrial Carbon Sequestration DOE Manual Studies Terrestrial Carbon Sequestration January 18, 2011 - 12:00pm Addthis Washington, DC - There is considerable...

62

SWP.terrestrial.factsheet0919  

NLE Websites -- All DOE Office Websites (Extended Search)

FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST Partnership Name Southwest Regional Partnership on Carbon Sequestration Contacts: DOE/NETL Project Mgr. Name Organization E-Mail William O'Dowd NETL William.odowd@netl.doe.gov Principal Investigator Reid Grigg / Brian McPherson NMT reid@prrc.nmt.edu / brian@nmt.edu Field Test Information: Field Test Name Terrestrial Sequestration Programs - Regional Terrestrial and Local Terrestrial Sequestration (Combined With Enhanced Coalbed Methane Sequestration) Test Location Entire Region (Regional Program); San Juan Basin (Local Pilot Test) Amount and Source of CO 2

63

Graduate studies Ecosystem Science  

E-Print Network (OSTI)

Graduate studies in Ecosystem Science and Management Ph.D. M.S. M.Agr. or Natural Resources Development MNRD Department of Ecosystem Science and Management College of Agriculture and Life Sciences. The thesisbased Master of Science and Ph.D. degrees are designed for research or academic careers

64

Soil community composition and ecosystem processes Comparing agricultural ecosystems with natural ecosystems  

E-Print Network (OSTI)

Soil community composition and ecosystem processes Comparing agricultural ecosystems with natural, nitrogen, pesticides Abstract. Soil organisms play principal roles in several ecosystem functions, i decomposition, and acting as an environmental buffer. Agricultural soils would more closely resemble soils

Neher, Deborah A.

65

Evaluation of a Process-Based Agro-Ecosystem Model (Agro-IBIS) across the U.S. Corn Belt: Simulations of the Interannual Variability in Maize Yield  

Science Conference Proceedings (OSTI)

A process-based terrestrial ecosystem model, Agro-IBIS, was used to simulate maize yield in a 13-state region of the U.S. Corn Belt from 1958 to 1994 across a 0.5° terrestrial grid. For validation, county-level census [U.S. Department of ...

Christopher J. Kucharik

2003-12-01T23:59:59.000Z

66

Trends Online - Ecosystems  

NLE Websites -- All DOE Office Websites (Extended Search)

Ecosystems Area and Carbon Content of Sphagnum Since Last Glacial Maximum - K. Gajewski, A. Viau, M. Sawada, D. Atkinson and S. Wilson Studies of present and past conditions are...

67

ecosystem in South Africa  

E-Print Network (OSTI)

Abstract. The principal mechanisms that connect carbon fluxes with water relations in savanna ecosystems were studied by using eddy covariance method in a savanna ecosystem at Kruger National Park, South Africa. Since the annual drought and rewetting cycle is a major factor influencing the function of savanna ecosystems, this work focused on the close inter-connection between water relations and carbon fluxes. Data from a nine-month measuring campaign lasting from the early wet season to the late dry season were used. Total ecosystem respiration showed highest values at the onset of the growing season, a slightly lower plateau during the main part of the growing season and a continuous decrease during the transition towards the dry season. The regulation of canopy conductance was changed in two ways: changes due to phenology during the course of the

W. L. Kutsch; N. Hanan; B. Scholes; I. Mchugh; W. Kubheka; H. Eckhardt; C. Williams

2008-01-01T23:59:59.000Z

68

Martian Windchill in Terrestrial Terms  

Science Conference Proceedings (OSTI)

With an average temperature of ?63 ºC and winter lows of ?120 ºC, Mars sounds far too cold for humans. However, thermometer readings from Mars are highly misleading to Terrestrials who base their expectations of thermal comfort on their experience in ...

Randall Osczevski

69

Innovation Ecosystem Development Initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovation Ecosystem Development Initiative Innovation Ecosystem Development Initiative Funding Opportunity Number DE-FOA-0000356 Applicant (Legal Name) University of Utah Technology Commercialization Office Location: Salt Lake City, UT Project Title Energy Innovation Commercialization Center Proposed Action or Project Description The project proposes to create an Energy Innovation Commercialization Center at the University of Utah. The scope of work for this project is in two phases: tasks necessary to create the Center and actual commercialization and outreach to other institutions. Specific activities for Phase I for the Center startup include 1) negotiating contract, prepare correspondence, establishing website, meetings, scheduling activities, developing metrics, and designing and creating a database. Phase 2 activities for Center

70

Innovation Ecosystem Development Initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: Office of Energy Efficiency and Renewable Energy: Innovation Ecosystem Development Initiative Funding Opportunity Number DE-FOA-0000356 Applicant (Legal Name) Fraunhofer Center for Sustainable Energy Systems Location: Cambridge, MA Project Title TechBridge Energy Innovation Acceleration Program

71

Two Ecosystem Demography Models Released  

NLE Websites -- All DOE Office Websites (Extended Search)

Ecosystem Demography Models Released Ecosystem Demography Models Released The ORNL DAAC is pleased to announce the release of two Ecosystem Demography Models: Ecosystem Demography Model: U.S. Ecosystem Carbon Stocks and Fluxes, 1700-1990 . Data set prepared by G. Hurtt, S.W. Pacala, P.R. Moorcroft, J. Caspersen, E. Shevliakova, R.A. Houghton, B. Moore III, and J. Fisk. This model product contains the source code for the Ecosystem Demography Model (ED version 1.0) as well as model input and output data files for the conterminous United States. The ED is a mechanistic ecosystem model built around established sub-models of leaf level physiology, organic matter decomposition, hydrology, and functional biodiversity. It was used herein to estimate ecosystem carbon stocks and fluxes in the conterminous U.S. at

72

Innovation Ecosystem Development Initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovation Ecosystem Development Initiative Innovation Ecosystem Development Initiative Funding Opportunity Number DE-FOA-0000356 Applicant (Legal Name) The Regents of the University of California, UC San Diego Location: La Jolla, CA Project Title Regional Energy Innovation and Commercialization Proposed Action or Project Description The University of California San Diego and San Diego State University are partnering to address deficiencies in the process for translation of research discoveries to the private sector in the clean energy space in the greater San Diego region and accelerate the movement of clean energy innovation from the university laboratory into the marketplace. The Phase I objective for launching the Regional Energy Innovation Challenge includes tasks such as: 1) project management and planning (organizing advisory

73

Innovation Ecosystem Development Initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: Office of Energy Efficiency and Renewable Energy: Innovation Ecosystem Development Initiative Funding Opportunity Number DE-FOA-0000356 Applicant (Legal Name) University of Central Florida Location: Orlando, FL Project Title MegaWatt Ventures Proposed Action or Project Description The University of Central Florida is dedicated to creating innovative programs that accelerate the

74

Training Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Courses NERSC Training Accounts Request Form Training Links OSF HPC Seminiars Software Accounts & Allocations Policies Data Analytics & Visualization Science Gateways User Surveys...

75

Management Opportunities for Enhancing Terrestrial Carbon Dioxide Sinks  

Science Conference Proceedings (OSTI)

The potential for mitigating increasing atmospheric carbon dioxide concentrations through the use of terrestrial biological carbon (C) sequestration is substantial. Here, we estimate the amount of C being sequestered by natural processes at global, North American, and national US scales. We present and quantify, where possible, the potential for deliberate human actions – through forestry, agriculture, and use of biomass-based fuels – to augment these natural sinks. Carbon sequestration may potentially be achieved through some of these activities but at the expense of substantial changes in land-use management. Some practices (eg reduced tillage, improved silviculture, woody bioenergy crops) are already being implemented because of their economic benefits and associated ecosystem services. Given their cumulative greenhouse-gas impacts, other strategies (eg the use of biochar and cellulosic bioenergy crops) require further evaluation to determine whether widespread implementation is warranted.

Post, W. M.; Izaurralde, Roberto C.; West, Tristram O.; Liebig, Mark A.; King, Anthony W.

2012-12-01T23:59:59.000Z

76

Global terrestrial biogeochemistry: Perturbations, interactions, and time scales  

Science Conference Proceedings (OSTI)

Global biogeochemical processes are being perturbed by human activity, principally that which is associated with industrial activity and expansion of urban and agricultural complexes. Perturbations have manifested themselves at least since the beginning of the 19th Century, and include emissions of CO{sub 2} and other pollutants from fossil fuel combustion, agricultural emissions of reactive nitrogen, and direct disruption of ecosystem function through land conversion. These perturbations yield local impacts, but there are also global consequences that are the sum of local-scale influences. Several approaches to understanding the global-scale implications of chemical perturbations to the Earth system are discussed. The lifetime of anthropogenic CO{sub 2} in the atmosphere is an important concept for understanding the current and future commitment to an altered atmospheric heat budget. The importance of the terrestrial biogeochemistry relative to the lifetime of excess CO{sub 2} is demonstrated using dynamic, aggregated models of the global carbon cycle.

Braswell, B.H. Jr.

1996-12-01T23:59:59.000Z

77

AFRD - Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Home Organization Diversity Research Highlights Safety Links Intramural Links Accelerators are built, operated, and used by a large and diverse worldwide community. These links will take you to pages elsewhere that are related to AFRDÂ’ work. The U.S. Department of Energy, Office of Science, is the principal supporter of our activities (and many other R&D endeavors). For information on the Joint Accelerator Conferences go to JACoW. The International Committee for Future Accelerators and the American Physical SocietyÂ’ Division of Physics of Beams are among the organizations that advance, encourage, and communicate accelerator and beam science. The Laboratory's 50th Anniversary magazine gives an overview of the early and middle history of LBNL. Two of its authors later published the

78

Soil ecosystem functioning under climate change: plant species and community effects  

Science Conference Proceedings (OSTI)

Feedbacks of terrestrial ecosystems to climate change depend on soil ecosystem dynamics. Soil ecosystems can directly and indirectly respond to climate change. For example, warming directly alters microbial communities by increasing their activity. Climate change may also alter plant community composition, thus indirectly altering the microbial communities that feed on their inputs. To better understand how climate change may directly and indirectly alter soil ecosystem functioning, we investigated old-field plant community and soil ecosystem responses to single and combined effects of elevated [CO2], warming, and water availability. Specifically, we collected soils at the plot level (plant community soils), and beneath dominant plant species (plant-specific soils). We used microbial enzyme activities and soil nematodes as indicators for soil ecosystem functioning. Our study resulted in two main findings: 1) Overall, while there were some interactions, water, relative to increases in [CO2] and warming, had the largest impact on plant community composition, soil enzyme activities, and soil nematodes. Multiple climate change factors can interact to shape ecosystems, but in this case, those interactions were largely driven by changes in water availability. 2) Indirect effects of climate change, via changes in plant communities, had a significant impact on soil ecosystem functioning and this impact was not obvious when looking at plant community soils. Climate change effects on enzyme activities and soil nematode abundance and community structure strongly differed between plant community soils and plant-specific soils, but also within plant-specific soils. In sum, these results indicate that accurate assessments of climate change impacts on soil ecosystem functioning require incorporating the concurrent changes in plant function and plant community composition. Climate change-induced shifts in plant community composition will likely modify or counteract the direct impact of climate change on soil ecosystem functioning, and hence, these indirect effects should be taken into account when predicting how climate change will alter ecosystem functioning.

Kardol, Paul [ORNL; Cregger, Melissa [ORNL; Campany, Courtney E [ORNL; Classen, Aimee T [ORNL

2010-01-01T23:59:59.000Z

79

The Network Packing Problem in Terrestrial Broadcasting  

E-Print Network (OSTI)

In the context of terrestrial video broadcasting, digital technology most likely will re- ... digital broadcasting has been carried out by the Italian Communications ...

80

Microsoft Word - BB-Terrestrial-Oct09  

NLE Websites -- All DOE Office Websites (Extended Search)

Field Test Name Terrestrial Field Validation Test Test Location North Dakota, South Dakota, Minnesota, Montana, Iowa Amount and Source of CO 2 Tons NA Source...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Microsoft Word - BB-Terrestrial.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Field Test Name PCOR Terrestrial Field Validation Test Test Location North Dakota, South Dakota, Minnesota, Montana, Iowa Amount and Source of CO 2 Tons NA Source...

82

Diesel Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov Web site. We offer these external links for your convenience in accessing additional information that may be useful or interesting to you. Diesel Vehicles and Manufacturers Audi A3 (TDI models) A6 (TDI models) A7 (TDI models) A8 L (TDI model) Q5 (TDI models) Q7 (TDI models) BMW 328d Sedan 328d xDrive Sedan 328d xDrive Sports Wagon 535d Sedan 535d xDrive Sedan Chevrolet Cruze Turbo Diesel Jeep Grand Cherokee EcoDiesel Mercedes-Benz E250 BlueTEC GL350 BlueTEC GLK250 BlueTEC ML350 BlueTEC Porsche Cayenne Diesel Volkswagen Beetle (TDI models) Beetle Convertible (TDI models) Golf (TDI models) Jetta (TDI models) Jetta Sportwagen (TDI models) Passat (TDI models) Touareg (TDI models) Diesel-Related Information

83

EcoSystem Corporation | Open Energy Information  

Open Energy Info (EERE)

EcoSystem Corporation EcoSystem Corporation Jump to: navigation, search Name EcoSystem Corporation Place Minneapolis, Minnesota Zip 55415 Sector Carbon, Efficiency Product Minnesota-based OTC-listed company developing a technology to increase yields and efficiency, while also decreasing energy consumption and carbon intensity at conventional corn ethanol plants. Coordinates 44.979035°, -93.264929° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.979035,"lon":-93.264929,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

84

CALMIT Remote-Sensing Research Relating to Carbon Sequestration There is considerable interest in assessing the magnitude of carbon sources and sinks in terrestrial  

E-Print Network (OSTI)

CALMIT Remote-Sensing Research Relating to Carbon Sequestration There is considerable interest in assessing the magnitude of carbon sources and sinks in terrestrial ecosystems using remote sensing techniques. We developed a novel technique to remotely assess carbon dioxide exchange in maize using

Nebraska-Lincoln, University of

85

Possible climates on terrestrial exoplanets  

E-Print Network (OSTI)

What kind of environment may exist on terrestrial planets around other stars? In spite of the lack of direct observations, it may not be premature to speculate on exoplanetary climates, for instance to optimize future telescopic observations, or to assess the probability of habitable worlds. To first order, climate primarily depends on 1) The atmospheric composition and the volatile inventory; 2) The incident stellar flux; 3) The tidal evolution of the planetary spin, which can notably lock a planet with a permanent night side. The atmospheric composition and mass depends on complex processes which are difficult to model: origins of volatile, atmospheric escape, geochemistry, photochemistry. We discuss physical constraints which can help us to speculate on the possible type of atmosphere, depending on the planet size, its final distance for its star and the star type. Assuming that the atmosphere is known, the possible climates can be explored using Global Climate Models analogous to the ones developed to sim...

Forget, Francois

2013-01-01T23:59:59.000Z

86

MIDC: Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Other Data Collection Activities Baseline Surface Radiation Network (BSRN) Clear Sky Forcast for NREL/SRRL (or other locations) Colorado Dept. of Public Health & Environment: Air Quality Index (AQI) Reporting System Colorado State University: USDA UV-B Monitoring and Research Program European Skynet Radiometers network (ESR) Jefferson County, Colorado: Jeffco Weather Station NOAA: Climate Monitoring & Diagnostics Laboratory (CMDL) NREL OTF: Reference Meteorological and Irradiance System (RMIS) NREL RReDC: Cooperative Networks for Renewable Resource Measurements (CONFRRM) NREL RReDC: NASA Remote Sensing Validation Data: Saudi Arabia Rocky Mountain Arsenal (RMA): National Wildlife Refuge Sandia National Laboratories: Photovoltaic Systems Evaluation

87

Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy...  

Open Energy Info (EERE)

Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model Jump to: navigation, search Logo: Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy:...

88

Energy, Water Ecosystem Engineering | Clean Energy | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Earth and Aquatic Sciences Ecosystem Science Environmental Data Science and Systems Energy, Water and Ecosystem Engineering Human Health Risk and Environmental Analysis...

89

Integrated Estimates of Global Terrestrial Carbon Sequestration  

SciTech Connect

Assessing the contribution of terrestrial carbon sequestration to international climate change mitigation requires integration across scientific and disciplinary boundaries. As part of a scenario analysis for the US Climate Change Technology Program, measurements and geographic data were used to develop terrestrial carbon sequestration estimates for agricultural soil carbon, reforestation and pasture management. These estimates were then applied in the MiniCAM integrated assessment model to evaluate mitigation strategies within policy and technology scenarios aimed at achieving atmospheric CO2 stabilization by 2100. Adoption of terrestrial sequestration practices is based on competition for land and economic markets for carbon. Terrestrial sequestration reach a peak combined rate of 0.5 to 0.7 Gt carbon yr-1 in mid-century with contributions from agricultural soil (0.21 Gt carbon yr-1), reforestation (0.31 Gt carbon yr-1) and pasture (0.15 Gt carbon yr-1). Sequestration rates vary over time period and with different technology and policy scenarios. The combined contribution of terrestrial sequestration over the next century ranges from 31 to 41 GtC. The contribution of terrestrial sequestration to mitigation is highest early in the century, reaching up to 20% of total carbon mitigation. This analysis provides insight into the behavior of terrestrial carbon mitigation options in the presence and absence of climate change mitigation policies.

Thomson, Allison M.; Izaurralde, R Cesar; Smith, Steven J.; Clarke, Leon E.

2008-02-01T23:59:59.000Z

90

Microsoft Word - BB-Terrestrial.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

PCOR Terrestrial Field Validation Test PCOR Terrestrial Field Validation Test 1 FACT SHEET FOR PARTNERSHIP FIELD VALIDATION TEST Partnership Name Plains CO 2 Reduction (PCOR) Partnership - Phase II Contacts: DOE/NETL Project Mgr. Name Organization E-Mail Darin Damiani, U.S. Department of Energy, Darin.Damiani@netl.doe.gov Principal Investigator Edward Steadman Field Test Information: Field Test Name PCOR Terrestrial Field Validation Test Test Location North Dakota, South Dakota, Minnesota, Montana, Iowa Amount and Source of CO 2 Tons N/A Source Atmospheric CO 2 Ducks Unlimited, Inc. U.S. Geological Survey Northern Prairie Wildlife Research Center Field Test Partners (Primary Sponsors) North Dakota State University

91

Impacts of Climate Change on Photosynthetic Microbes in Arid Ecosystems |  

Office of Science (SC) Website

Impacts of Climate Change on Photosynthetic Microbes in Arid Ecosystems Impacts of Climate Change on Photosynthetic Microbes in Arid Ecosystems Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) News & Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3251 F: (301) 903-5051 E: sc.ber@science.doe.gov More Information » October 2012 Impacts of Climate Change on Photosynthetic Microbes in Arid Ecosystems Researchers find that ten years of controlled CO2 elevation on desert microbes had deleterious effects.

92

The influence of technological factors on cow milk production in zootechnic ecosystems from Vrancea county in Romania  

Science Conference Proceedings (OSTI)

The increasing of cattle number from livestock ecosystems is a major objective in achieving feeding security of the human population. By the same time, the sustainable development of livestock is tightly linked to the protection, conservation and development ... Keywords: biotechnology, ecosystem, feeding security, holdings, management

Culai Dascalu; Alexandru T. Bogdan; Alexandru ?onea; Paul Rodian T?p?loag?; Sorin Sergiu Chelmu; Cristinel ?onea; Radu Burlacu; Ion Constantinescu; Costel Ilie; Elisabeta Claudia Dasc?lu; Stefan Nastasie; Dan Tapus

2011-02-01T23:59:59.000Z

93

GR Focus Review Impacts of global warming on Permo-Triassic terrestrial ecosystems  

E-Print Network (OSTI)

and the Karoo (Chumakov and Zharkov, 2003; Royer et al., 2004). 4.3. Numerical climate models The peculiar plate Basin, eastern South America (7) Karoo, South Africa, (8) Satpura/Raniganj basins, central India, (9-humid basins such as the Karoo (Smith, 1995) or the south Urals (Newell et al., 1999), brown overbank mudstones

Benton, Michael

94

The Influence of Aquatic vs. Terrestrial Production on Soil Invertebrate Communities in a Floodplain Ecosystem  

E-Print Network (OSTI)

Clinton’s research focused on the role of freshwater algae.Large mats of algae often grow in stagnant shallow pools ofsubstantiated, is that algae effectively are the “leaf

Clinton, Sandra M.

2006-01-01T23:59:59.000Z

95

land surface modeling with enhanced consideration of soil hydraulic properties and terrestrial ecosystems .  

E-Print Network (OSTI)

??This thesis research consists of two separate studies. The first study presents the assessment and representation of the effects of soil macropores on the soil… (more)

Liu, Qing

2004-01-01T23:59:59.000Z

96

Terrestrial Ecosystem Science | U.S. DOE Office of Science (SC...  

Office of Science (SC) Website

System Research (ASR) Program Data Management Earth System Modeling (ESM) Program William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) Integrated Assessment of...

97

Quantification of and Controls on Dinitrogen and Nitrous Oxide Fluxes from Terrestrial Ecosystems  

E-Print Network (OSTI)

and then 100 g was weighed into each sample jar (490 mL).The jars were sealed on viton gaskets with aluminum lidssepta for gas sampling. The jars were flushed with N 2 for

Yang, Wendy Hui-I

2010-01-01T23:59:59.000Z

98

A global analysis of soil microbial biomass carbon, nitrogen and phosphorus in terrestrial ecosystems  

SciTech Connect

Soil microbes play a pivotal role in regulating land-atmosphere interactions; the soil microbial biomass carbon (C), nitrogen (N), phosphorus (P) and C:N:P stoichiometry are important regulators for soil biogeochemical processes; however, the current knowledge on magnitude, stoichiometry, storage, and spatial distribution of global soil microbial biomass C, N, and P is limited. In this study, 3087 pairs of data points were retrieved from 281 published papers and further used to summarize the magnitudes and stoichiometries of C, N, and P in soils and soil microbial biomass at global- and biome-levels. Finally, global stock and spatial distribution of microbial biomass C and N in 0-30 cm and 0-100 cm soil profiles were estimated. The results show that C, N, and P in soils and soil microbial biomass vary substantially across biomes; the fractions of soil nutrient C, N, and P in soil microbial biomass are 1.6% in a 95% confidence interval of (1.5%-1.6%), 2.9% in a 95% confidence interval of (2.8%-3.0%), and 4.4% in a 95% confidence interval of (3.9%-5.0%), respectively. The best estimates of C:N:P stoichiometries for soil nutrients and soil microbial biomass are 153:11:1, and 47:6:1, respectively, at global scale, and they vary in a wide range among biomes. Vertical distribution of soil microbial biomass follows the distribution of roots up to 1 m depth. The global stock of soil microbial biomass C and N were estimated to be 15.2 Pg C and 2.3 Pg N in the 0-30 cm soil profiles, and 21.2 Pg C and 3.2 Pg N in the 0-100 cm soil profiles. We did not estimate P in soil microbial biomass due to data shortage and insignificant correlation with soil total P and climate variables. The spatial patterns of soil microbial biomass C and N were consistent with those of soil organic C and total N, i.e. high density in northern high latitude, and low density in low latitudes and southern hemisphere.

Xu, Xiaofeng [ORNL; Thornton, Peter E [ORNL; Post, Wilfred M [ORNL

2013-01-01T23:59:59.000Z

99

Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change  

E-Print Network (OSTI)

referred to as “phase change”) and ice physics; (3)2.8.1). 2.3.1.2 Phase Change and Ice in the Lake Body Theany time ice occurs below water after phase change has been

Subin, Zachary Marc

2012-01-01T23:59:59.000Z

100

DOE Manual Studies Terrestrial Carbon Sequestration | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Manual Studies Terrestrial Carbon Sequestration Manual Studies Terrestrial Carbon Sequestration DOE Manual Studies Terrestrial Carbon Sequestration January 18, 2011 - 12:00pm Addthis Washington, DC - There is considerable opportunity and growing technical sophistication to make terrestrial carbon sequestration both practical and effective, according to the latest carbon capture and storage (CCS) "best practices" manual issued by the U.S. Department of Energy. Best Practices for Terrestrial Sequestration of Carbon Dioxide details the most suitable operational approaches and techniques for terrestrial sequestration, a carbon dioxide (CO2) mitigation strategy capable of removing CO2 already in the air. Consequently, terrestrial sequestration, which uses photosynthesis - part of the natural carbon cycle - to create

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Ecosystem Japan Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Japan Co Ltd Japan Co Ltd Jump to: navigation, search Name Ecosystem Japan Co Ltd Place Tokyo, Tokyo, Japan Zip 160-0002 Sector Solar Product Japan-based installer of solar panels. Coordinates 35.670479°, 139.740921° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.670479,"lon":139.740921,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

102

Hydrogen: Helpful Links & Contacts  

Science Conference Proceedings (OSTI)

Helpful Links & Contacts. Helpful Links. Hydrogen Information, Website. ... Contacts for Commercial Hydrogen Measurement. ...

2013-07-31T23:59:59.000Z

103

Metric Selection for Ecosystem Restoration  

E-Print Network (OSTI)

managers identify the best metrics to evaluate and select the recommended restoration plan, monitor and assess progress toward achieving project objectives, and, if necessary, inform adaptive management decisions. Performance metrics, or measurable system components used to estimate and track the state of critical aspects of the project, are often the basis for project decision making and furthering scientific understanding. As such, ecosystem restoration planners should take time to carefully select an appropriate and effective metric set. To help planners with this task, this technical note accomplishes the following: 1. Reviews current USACE ecosystem restoration planning and monitoring policy, regulations and guidelines. 2. Explains the importance of metric selection and its roles during planning and post-construction monitoring and assessment. 3. Reviews common options for identifying and selecting metrics including conceptual modeling, historical precedence, and best professional judgment. 4. Presents two metric evaluation methods, screening and multi-criteria decision analysis. 5. Discusses metric application to ecosystem restoration project planning and monitoring.

Matteo Convertino; Kelsie Baker; Connie Lu; John T. Vogel; Kyle Mckay; Igor Linkov

2013-01-01T23:59:59.000Z

104

Integrating Ecosystem Sampling, Gradient Modeling, Remote Sensing, and Ecosystem Simulation to Create Spatially Explicit Landscape Inventories  

E-Print Network (OSTI)

ecosystem sampling, gradient modeling, remote sensing, and ecosystem simulation to create spatially explicit landscape inventories. RMRS-GTR-92. Fort Collins, CO: U.S. Department

United States; Forest Service; Robert E. Keane; Matthew G. Rollins; Cecilia H. Mcnicoll; Russell A. Parsons Abstract

2002-01-01T23:59:59.000Z

105

Microsoft Word - BB-Terrestrial-Oct09  

NLE Websites -- All DOE Office Websites (Extended Search)

Terrestrial Field Validation Test Terrestrial Field Validation Test 1 FACT SHEET FOR PARTNERSHIP FIELD VALIDATION TEST Partnership Name Plains CO 2 Reduction (PCOR) Partnership - Phase II Contacts: DOE/NETL Project Mgr. Name Organization E-Mail Andrea McNemar, U.S. Department of Energy, andrea.mcnemar@netl.doe.gov Principal Investigator Edward Steadman Field Test Information: Field Test Name Terrestrial Field Validation Test Test Location North Dakota, South Dakota, Minnesota, Montana, Iowa Amount and Source of CO 2 Tons N/A Source Atmospheric CO 2 Field Test Partners (Primary Sponsors) Ducks Unlimited, Inc. U.S. Geological Survey Northern Prairie Wildlife Research Center North Dakota State University Summary of Field Test Site and Operations:

106

Terrestrial applications of bifacial photovoltaic solar panels  

Science Conference Proceedings (OSTI)

Bifacial Photovoltaic solar cells (so-called transparent bifacial photovoltaic solar cells) offer additional absorption by rear side, which is a significant advantage over ordinary Photovoltaic solar cells. A range of experiments have been done on bifacial ... Keywords: absorption, panels, photovoltaic, solar cells, terrestrial

P. Ooshaksaraei; R. Zulkifli; S. H. Zaidi; M. Alghoul; A. Zaharim; K. Sopian

2011-10-01T23:59:59.000Z

107

Innovation Ecosystem Initiative - Home - Energy Innovation Portal  

Innovation Ecosystem Initiative. In September 2010, the Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE) ...

108

Innovation Ecosystem Initiative - EERE Commercialization Office  

Innovation Ecosystem Initiative. In September 2010, the Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE) ...

109

Terrestrial Carbon Cycle Dynamics under Recent and Future Climate Change  

Science Conference Proceedings (OSTI)

The behavior of the terrestrial carbon cycle under historical and future climate change is examined using the University of Victoria Earth System Climate Model, now coupled to a dynamic terrestrial vegetation and global carbon cycle model. When ...

H. Damon Matthews; Andrew J. Weaver; Katrin J. Meissner

2005-05-01T23:59:59.000Z

110

Consideration of Ecosystem for ICME  

Science Conference Proceedings (OSTI)

As the Integrated Computational Materials Engineering (ICME) emerges as a hot topic, computation, experimentation, and digital database are identified as its three major components. Efforts are being actively made from various aspects to bring ICME to reality. However, many factors that would affect ICEM development still remain vague. This paper is an attempt to discuss the needs for establishing a database centered ecosystem to facilitate ICEM development.

Ren, Weiju [ORNL

2013-01-01T23:59:59.000Z

111

Regional Partnerships in Terrestrial Carbon Sequestration  

NLE Websites -- All DOE Office Websites (Extended Search)

Regional Partnerships in Terrestrial Carbon Sequestration Regional Partnerships in Terrestrial Carbon Sequestration November 6-7, 2001 Lexington, Kentucky Robert Addington AEI Incorporated 2000 Ashland Drive Ashland, KY 41101 Phone: 606-928-3433 Email: crystalj@aeiresources.com Jim Amonette MSIN K8-96 Pacific Northwest National Laboratory P.O. Box 999 Richland, WA 99352 Phone: 509-3765565 Email: jim.amonette@pnl.gov Patrick Angel Area Office Manager U.S. Department of Interior Office of Surface Mining P.O. Box 1048 London, KY 40741 Phone: 606-878-6440 Email: pangel@osmre.gov Hugh Archer Commissioner Kentucky Dept of Natural Resources 663 Teton Trail Frankfort, KY 40601 Phone: 502-564-2184 Email: hugh.archer@mail.state.ky.us Victor Badaker Mining Engineering Dept. University of Kentucky MML Bldg. Lexington, KY 40546 Phone: 859-257-3818

112

Method for identifying anomalous terrestrial heat flows  

DOE Patents (OSTI)

A method for locating and mapping the magnitude and extent of terrestrial heat-flow anomalies from 5 to 50 times average with a tenfold improved sensitivity over orthodox applications of aerial temperature-sensing surveys as used for geothermal reconnaissance. The method remotely senses surface temperature anomalies such as occur from geothermal resources or oxidizing ore bodies by: measuring the spectral, spatial, statistical, thermal, and temporal features characterizing infrared radiation emitted by natural terrestrial surfaces; deriving from these measurements the true surface temperature with uncertainties as small as 0.05 to 0.5 K; removing effects related to natural temperature variations of topographic, hydrologic, or meteoric origin, the surface composition, detector noise, and atmospheric conditions; factoring out the ambient normal-surface temperature for non-thermally enhanced areas surveyed under otherwise identical environmental conditions; distinguishing significant residual temperature enhancements characteristic of anomalous heat flows and mapping the extent and magnitude of anomalous heat flows where they occur.

Del Grande, Nancy Kerr (San Leandro, CA)

1977-01-25T23:59:59.000Z

113

Transmission Characteristics Evaluation Under Bad Weather Conditions in Optical Wireless Links with Different Optical Transmission Windows  

Science Conference Proceedings (OSTI)

Optical wireless links offer gigabit per second data rates and low system complexity. For ground space and or terrestrial communication systems, these links suffer from atmospheric loss mainly due to fog, scintillation and precipitation. Optical Wireless ... Keywords: Bad weather effects, Empirical model, Rain Attenuation, Rain Scattering, Specific attenuation, Visibility, Wireless Optics (WOs)

Ahmed Nabih Rashed; Mohamed M. El-Halawany

2013-07-01T23:59:59.000Z

114

The Internet Ecosystem- The Potential for Discrimination  

E-Print Network (OSTI)

The Federal Communication Commission is considering rules enforcing “network neutrality ” and legislation proposing similar goals have been discussed in Congress. The goals of the proposed regulation and legislation are preserve an “open Internet”, but are specifically directed toward access networks, or the first link that directly connects users to the Internet. We argue that preserving open competition in a host of “higher level” Internet services is equally if not more important, but since the rate of technology innovation typically out-paces the need for regulation, there is no need to impose regulation at this time. Using specific examples focused on the “visible Internet ” as well as new services and applications that enable rapid innovation, we argue that the Internet has fostered a history of technological and business solutions that overcome what seems to be certain market dominance. A key enabler of these changes is the emergence of technologies that lower the barrier for entry in developing and deploying new services. We argue that regulators should be aware of the potential for anti-competitive practices, but should carefully consider the effects of regulation on the full Internet ecosystem. We

Dirk Grunwald

2010-01-01T23:59:59.000Z

115

Ecosystem-based Management of Pacific Tunas  

E-Print Network (OSTI)

Ecosystem-based management is fast becoming the way to solve all the nation's fishery problems. It will rebuild fish stocks, eliminate bycatch, and halt habitat destruction; it will fix jurisdictional mismatches and encourage community participation; it will satisfy environmentalists and please fishermen. These are lofty expectations for a concept that few can explain. However, managers are still if it applies to all fisheries. To resolve this, I examined ecosystem-based management in the context of the United State’s yellowfin and bigeye fisheries and suggested ecosystem-based approaches to managing this fishery. EBM is the management of human behavior in a way that maintains healthy and productive ecosystems for present and future generations. Its main themes include: maintaining ecological integrity, matching ecological and governance boundaries, and recognizing humans as a part of the ecosystem. Using ecosystem approaches to management offers several benefits to fisheries managers, including: a tool to address non-fishing related causes for declining fisheries,

Lia Protopapadakis

2006-01-01T23:59:59.000Z

116

NEWTON's Weather Links  

NLE Websites -- All DOE Office Websites (Extended Search)

References Do you have a great weather reference link? Please click our Ideas page. Featured Reference Links: NOAA Teachers Support Page NOAA Teachers Support Page for Weather and...

117

Regional Estimates of Net Ecosystem-Atmosphere Exchange of Carbon Dioxide over a Heterogeneous Ecosystem.  

E-Print Network (OSTI)

??The net ecosystem-atmosphere exchange of CO2 (NEE) is estimated over a mixed forest ecosystem in the 40×40km2 region centered at the WLEF tall tower in… (more)

Wang, Weiguo

2005-01-01T23:59:59.000Z

118

Innovation Ecosystem Initiative - EERE Commercialization Office  

Innovation Ecosystem Initiative. In September 2010, the Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Commercialization Team ...

119

Why sequence archaea in a terrestrial subsurface aquifer?  

NLE Websites -- All DOE Office Websites (Extended Search)

genome sequencing. Principal Investigators: Wen-Tso Liu, University of Illinois Program: CSP 2011 Home > Sequencing > Why sequence archaea in a terrestrial subsurface aquifer...

120

NETL: Regional Partnerships in Terrestrial Carbon Sequestration  

NLE Websites -- All DOE Office Websites (Extended Search)

Regional Partnerships in Terrestrial Carbon Sequestration Regional Partnerships in Terrestrial Carbon Sequestration A "Hands-On" Workshop for the Appalachian Coal & Electric Utilities Industries Table of Contents Disclaimer General Conference Information Papers and Presentations Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government or any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Advanced Stirling conversion systems for terrestrial applications  

DOE Green Energy (OSTI)

Sandia National Laboratories (SNLA) is developing heat engines for terrestrial Solar distributed Heat Receivers. SNLA has identified the Stirling to be one of the most promising candidates for the terrestrial applications. The free-piston Stirling engine (FPSE) has the potential to meet the DOE goals for both performance and cost. Free-piston Stirling activities which are directed toward a dynamic power source for the space application are being conducted. Space power system requirements include high efficiency, very long life, high reliability and low vibration. The FPSE has the potential for future high power space conversion systems, either solar or nuclear powered. Generic free-piston technology is currently being developed for use with a residential heat pump under an Interagency Agreement. Also, an overview is presented of proposed conceptual designs for the Advanced Stirling Conversion System (ASCS) using a free-piston Stirling engine and a liquid metal heat pipe receiver. Power extraction includes both a linear alternator and hydraulic output capable of delivering approximately 25 kW of electrical power to the electric utility grid. Target cost of the engine/alternator is 300 dollars per kilowatt at a manufacturing rate of 10,000 units per year. The design life of the ASCS is 60,000 h (30 y) with an engine overhaul at 40,000 h (20 y). Also discussed are the key features and characteristics of the ASCS conceptual designs.

Shaltens, R.K.

1987-01-01T23:59:59.000Z

122

Euzone: Simulating the evolution of aquatic ecosystems  

Science Conference Proceedings (OSTI)

In the spirit of contemporary artificial life research, EUZONE provides a virtual laboratory for the emergence of complex ecosystems from simple primitives. However, whereas most alife systems abstract away many real-world environmental constraints, ... Keywords: Gaia theory, ecosystem evolution, genetic algorithms, genetic programming, plankton

Keith Downing

1997-01-01T23:59:59.000Z

123

Treating business dimension in software ecosystems  

Science Conference Proceedings (OSTI)

Software Ecosystems (SECOs) have emerged as an approach to improve Software Engineering (SE) in industry considering relations among companies and stakeholders. Companies have opened up their platforms and artifacts to others, including partners and ... Keywords: component-based software engineering, software ecosystems, software reuse, value-based software engineering

Rodrigo Pereira dos Santos; Cláudia Werner

2011-11-01T23:59:59.000Z

124

Microbial ecology of terrestrial Antarctica: Are microbial systems at risk from human activities?  

Science Conference Proceedings (OSTI)

Many of the ecological systems found in continental Antarctica are comprised entirely of microbial species. Concerns have arisen that these microbial systems might be at risk either directly through the actions of humans or indirectly through increased competition from introduced species. Although protection of native biota is covered by the Protocol on Environmental Protection to the Antarctic Treaty, strict measures for preventing the introduction on non-native species or for protecting microbial habitats may be impractical. This report summarizes the research conducted to date on microbial ecosystems in continental Antarctica and discusses the need for protecting these ecosystems. The focus is on communities inhabiting soil and rock surfaces in non-coastal areas of continental Antarctica. Although current polices regarding waste management and other operations in Antarctic research stations serve to reduce the introduction on non- native microbial species, importation cannot be eliminated entirely. Increased awareness of microbial habitats by field personnel and protection of certain unique habitats from physical destruction by humans may be necessary. At present, small-scale impacts from human activities are occurring in certain areas both in terms of introduced species and destruction of habitat. On a large scale, however, it is questionable whether the introduction of non-native microbial species to terrestrial Antarctica merits concern.

White, G.J.

1996-08-01T23:59:59.000Z

125

A Brief Review of the Application of 14C in Terrestrial Carbon Cycle Studies  

SciTech Connect

An over-arching goal of the DOE TCP program is to understand the mechanistic controls over the fate, transport, and residence time of carbon in the terrestrial biosphere. Many of the modern process and modeling studies focus on seasonal to interannual variability. However, much of the carbon on the landscape and in soils is in separate reservoirs with turnover times that are multi-decadal to millennial. It is the controls on these longer term pools or reservoirs that is a critical unknown in the face of rising GHGs and climate change and uncertainties of the terrestrial biosphere as a future global sink or source of atmospheric CO{sub 2} [eg., Friedlingstein et al., 2006; Govindasamy et al., 2005; Thompson et al., 2004]. Radiocarbon measurements, in combination with other data, can provide insight into, and constraints on, terrestrial carbon cycling. Radiocarbon (t{sub 1/2} 5730yrs) is produced naturally in the stratosphere when secondary neutrons generated by cosmic rays collide with {sup 14}N atoms [Libby 1946; Arnold and Libby, 1949]. Upon formation, {sup 14}C is rapidly oxidized to CO and then to CO{sub 2}, and is incorporated into the carbon cycle. Due to anthropogenic activities, the amount of {sup 14}C in the atmosphere doubled in the mid/late 1950s and early 1960s from its preindustrial value of {sup 14}C/{sup 12}C ratio of 1.18 x 10{sup -12} [eg., Nydal and Lovseth, 1983]. Following the atmospheric weapons test ban in 1963, the {sup 14}C/{sup 12}C ratio, has decreased due to the net isotopic exchange between the ocean and terrestrial biosphere [eg., Levin and Hessheimer, 2000] and a dilution effect due to the burning of {sup 14}C-free fossil fuel carbon, the 'Suess Effect' [Suess, 1955]. In the carbon cycle literature, radiocarbon measurements are generally reported as {Delta}{sup 14}C, which includes a correction for mass dependent fractionation [Stuiver and Polach, 1977]. In the context of carbon cycle studies radiocarbon measurements can be used to determine the 'age' and rate of change of carbon stocks or as a biogeochemical tracer to elucidate processes and pathways. It is this dual nature that can be exploited across scales in space (individual plant, plot or research site, ecosystem, regional, and global) and time (days to millennia). For example, across regional scales, {Delta}{sup 14}C measurements of atmosphere CO{sub 2} can be used to attribute carbon dioxide to sources (e.g., respiration vs. fossil fuel emissions) or sinks ( e.g,. photosynthesis), which cannot be readily inferred from concentration, net flux measurements, or {delta}{sup 13}CO{sub 2} [eg. Graven et al., 2009; Levin and Hessheimer, 2000; Turnbull et al., 2007]. At smaller scales, similar analyses can be used to elucidate the source, and 'age' of the below ground component undergoing heterotrophic respiration. Net (biome or ecosystem) uptake of carbon is the difference of two large fluxes: photosynthesis and respiration. Carbon fixation by photosynthesis is, to a large extent, a single process with theoretical underpinnings. On the other-hand, net ecosystem or biome respiration integrates microbial (heterotrophic) and plant (autotrophic) respiration. Eddy covariance methods can be used to estimate bulk CO{sub 2} fluxes but they cannot discriminate the process nor the source of the respired CO{sub 2}. It is these processes that are parameterized in predictive models and contribute to the uncertainty in the climate forcing effect of the carbon cycle in the future [Friedlingstein et al., 2006; Heimann and Reichstein, 2008].

Guilderson, T; Mcfarlane, K

2009-10-22T23:59:59.000Z

126

Pages that link to "Property:UNRegion" | Open Energy Information  

Open Energy Info (EERE)

( links) Mauritius ( links) Bahrain ( links) Moldova ( links) Thailand ( links) Portugal ( links) Sudan ( links) View (previous 50 |...

127

Pages that link to "Form:Tool" | Open Energy Information  

Open Energy Info (EERE)

( links) Mauritius ( links) Bahrain ( links) Moldova ( links) Thailand ( links) Portugal ( links) Sudan ( links) Senegal (...

128

Pages that link to "Form:Research Institution" | Open Energy...  

Open Energy Info (EERE)

( links) Mauritius ( links) Bahrain ( links) Moldova ( links) Thailand ( links) Portugal ( links) Sudan ( links) Senegal (...

129

Pages that link to "Form:Program" | Open Energy Information  

Open Energy Info (EERE)

( links) Mauritius ( links) Bahrain ( links) Moldova ( links) Thailand ( links) Portugal ( links) Sudan ( links) Senegal (...

130

Pages that link to "Form:Company" | Open Energy Information  

Open Energy Info (EERE)

( links) Mauritius ( links) Bahrain ( links) Moldova ( links) Thailand ( links) Portugal ( links) Sudan ( links) View (previous 50 |...

131

Central Market: A Study of Architecture as Ecosystem.  

E-Print Network (OSTI)

??The city functions as an Urban Ecosystem. As buildings are primary components of this system, each structure must appropriate its environment for the Urban Ecosystem… (more)

Scali, Emily Genia

2010-01-01T23:59:59.000Z

132

China-US Collaborative Research on Life in Terrestrial  

E-Print Network (OSTI)

Symposium: China-US Collaborative Research on Life in Terrestrial Geothermal Springs Information, Agenda, and Abstracts June 26-28, 2013, Kunming, China #12;Symposium: China-US Collaborative Research on Life in Terrestrial Geothermal Springs Kunming, China June 26-28, 2013 Information, Agenda

Ahmad, Sajjad

133

Quality assessment of GPS reprocessed terrestrial reference frame  

Science Conference Proceedings (OSTI)

The International GNSS Service (IGS) contributes to the construction of the International Terrestrial Reference Frame (ITRF) by submitting time series of station positions and Earth Rotation Parameters (ERP). For the first time, its submission to the ... Keywords: GNSS, Geocenter motion, Loading, Systematic errors, Terrestrial reference frames

Xavier Collilieux; Laurent Métivier; Zuheir Altamimi; Tonie Dam; Jim Ray

2011-07-01T23:59:59.000Z

134

Generation of a Consistent Terrestrial Net Primary Production Data Set  

NLE Websites -- All DOE Office Websites (Extended Search)

Generation of a Consistent Terrestrial Net Generation of a Consistent Terrestrial Net Primary Production Data Set Final Report NASA Reference Number TE/99-0005 May 3, 2001 Richard J. Olson and Jonathan M. O. Scurlock Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-6407 This project, "Generation of a Consistent Terrestrial Net Primary Production Data Set", is a coordinated, international effort to compile global estimates of terrestrial net primary productivity (NPP) for parameterization, calibration, and validation of NPP models. The project (NASA Reference Number TE/99-0005) was funded by the National Aeronautics and Space Administration (NASA), Office of Earth Science, Terrestrial Ecology Program under Interagency Agreement number 2013-M164-A1, under

135

Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS  

Open Energy Info (EERE)

Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model Jump to: navigation, search Tool Summary Name: Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model Agency/Company /Organization: National Renewable Energy Laboratory, Centro de Energías Renovables (CER), United States Department of Energy Sector: Energy Focus Area: Solar Resource Type: Software/modeling tools, Webinar, Training materials References: Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model[1] Logo: Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy: SMARTS Model Webinar Video SMARTSwebinar.JPG Announcement " Monday, December 6, 2010 11-12 a.m. Golden, CO 1-2 p.m., Washington, D.C. 3-4 p.m., Santiago, Chile

136

Standard-Related Links  

Science Conference Proceedings (OSTI)

... Standard-Related Links. ... Association for Clinical Chemistry ACS - American Chemical Society ANSI - American National Standards Institute AOAC ...

2013-06-28T23:59:59.000Z

137

Marine Microbial Ecosystems: Not as Simple as Once Thought | U.S. DOE  

Office of Science (SC) Website

Marine Microbial Ecosystems: Not as Simple as Once Thought Marine Microbial Ecosystems: Not as Simple as Once Thought Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) News & Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3251 F: (301) 903-5051 E: sc.ber@science.doe.gov More Information » October 2012 Marine Microbial Ecosystems: Not as Simple as Once Thought Low abundance microbes may do more than their share of carbon cycling in the ocean. Print Text Size: A A A Subscribe FeedbackShare Page

138

Impact of elevated CO2 on a Florida Scrub-oak Ecosystems  

SciTech Connect

Since May of 1996, we have conducted an experiment in Florida Scrub Oak to determine the impact of elevated atmospheric CO2 and climate change on carbon, water, and nutrient cycling in this important terrestrial ecosystem. Florida scrub oak is the name for a collective of species occupying much of the Florida peninsula. The dominant tree species are oaks and the dwarf structure of this community makes it an excellent system in which to test hypotheses regarding the potential capacity of woody ecosystems to assimilate and sequester anthropogenic carbon. Scrub oak is fire dependent with a return cycle of 10-15 years, a time which would permit an experiment to follow the entire cycle. Our site is located on Cape Canaveral at the Kennedy Space Center, Florida. After burning in 1995, we built 16 open top chambers, half of which have been fumigated with pure CO2 sufficient to raise the concentration around the plants to 350 ppm above ambient. In the intervening 10 years we have non destructively measured biomass of shoots and roots, ecosystem gas exchange using chambers and eddy flux, leaf photosynthesis and respiration, soil respiration, and relevant environmental factors such as soil water availability, temperature, light, etc. The overwhelming result from analysis of our extensive data base is that elevated CO2 has had a profound impact on this ecosystem that, overall, has resulted in increased carbon accumulation in plant shoots, roots and litter. Our measurements of net ecosystem gas exchange also indicate that the ecosystem has accumulated carbon much in excess of the increased biomass or soil carbon suggesting a substantial export of carbon through the porous, sandy soil into the water table several meters below the surface. A major discovery is the powerful interaction between the stimulation of growth, photosynthesis, and respiration by elevated CO2 and other environmental factors particularly precipitation and nitrogen. Our measurements focused attention on: stimulation of ecosystem gas exchange by elevated atmospheric CO2; the architecture and distribution of coarse roots using the novel approach of ground penetrating radar; mechanisms for the disturbance of soil carbon pools via the "priming" effect; and how interannual and seasonal variation in precipitation alters the physiological response of key species to elevated CO2. This project was a collaboration between research groups at the Smithsonian Institution, NASA, the Dynamac Corporation, Northern Arizona University, and Old Dominion University in Norfolk, Virginia.

Drake, Bert G

2013-01-01T23:59:59.000Z

139

Energy Links Page - EIA  

U.S. Energy Information Administration (EIA) Indexed Site

Publications & Reports > Energy Links Page Publications & Reports > Energy Links Page Related Energy Links Energy Companies Coal & Other Electricity Foreign Integrated Natural Gas Transmission, Distribution, and Marketing News Services and Periodicals Oil & Gas Exploration and Production Petroleum Refining, Marketing, and Transportation State Owned U.S. Integrated Government Agencies Other DOE National Laboratories Federal Energy States Universities Trade Associations & Other Trade Associations Other Associations International Statistics Energy Services Other Energy Sites EIA Links Disclaimer These pages contain hypertext links to information created and maintained by other public and private organizations. These links provide additional information that may be useful or interesting and are being provided consistent with the intended purpose of the EIA Web site. EIA does not control or guarantee the accuracy, relevance, timeliness, or completeness of this outside information. EIA does not endorse the organizations sponsoring linked websites and we do not endorse the views they express or the products/services they offer.

140

NPP and Driver Data for Ecosystem  

NLE Websites -- All DOE Office Websites (Extended Search)

EMDI Data Revised Data Set: NPP Multi-Biome: NPP and Driver Data for Ecosystem Model-Data Intercomparison Effective Date of Revision: June 17, 2004 Data Set Citation: Olson, R. J.,...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Pests Affecting the Ecosystems on the ORR  

NLE Websites -- All DOE Office Websites (Extended Search)

nest preda- tion on forest species such as the wood thrush increase. The nonnative fish on the ORR with the greatest negative ecosystem impacts are grass and common carp and...

142

Building virtual ecosystems from artificial chemistry  

Science Conference Proceedings (OSTI)

This paper adopts an interdisciplinary view of the significant elements of ecosystems and the methods by which these might be simulated to explore theoretical issues of relevance to Artificial Life and Ecology. Artificial Life has largely been concerned ...

Alan Dorin; Kevin B. Korb

2007-09-01T23:59:59.000Z

143

A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the Global Carbon Cycle  

Science Conference Proceedings (OSTI)

The primary goal of our research program, consistent with the goals of the U.S. Climate Change Science Program and funded by the terrestrial carbon processes (TCP) program of DOE, has been to improve understanding of changes in the distribution and cycling of carbon among the active land, ocean and atmosphere reservoirs, with particular emphasis on terrestrial ecosystems. Our approach is to systematically measure atmospheric CO2 to produce time series data essential to reveal temporal and spatial patterns. Additional measurements of the 13C/12C isotopic ratio of CO2 provide a basis for distinguishing organic and inorganic processes. To pursue the significance of these patterns further, our research also involved interpretations of the observations by models, measurements of inorganic carbon in sea water, and of CO2 in air near growing land plants.

Stephen C. Piper

2005-10-15T23:59:59.000Z

144

Isotope powered Stirling generator for terrestrial applications  

SciTech Connect

An electric power supply, small enough to be man-portable, is being developed for remote, terrestrial applications. This system is designed for an operating lifetime of five years without maintenance or refueling. A small Radioisotope Stirling Generator (RSG) has been developed. The energy source of the generator is a 60 watt plutonium-238 fuel clad used in the General Purpose Heat Sources (GPHS) developed for space applications. A free piston Stirling Engine drives a linear alternator to convert the heat to power. The system weighs about 7.5 kg and produces 11 watts AC power with a conversion efficiency of 18.5%. Two engine models have been designed, fabricated, and tested to date: (a) a developmental model instrumented to confirm and test parameters, and (b) an electrically heated model with an electrical heater equipped power input leads. Critical components have been tested for 10,000 to 20,000 hours. One complete generator has been operating for over 11,000 hours. Radioisotope heated prototypes are expected to be fabricated and tested in late 1995.

Tingey, G.L.; Sorensen, G.C. [Pacific Northwest Lab., Richland, WA (United States); Ross, B.A. [Stirling Technology Co., Richland, WA (United States)

1995-01-01T23:59:59.000Z

145

NREL: News - Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Feature News News Releases Events Awards Research Support Facility Energy Systems Integration Facility Related Links NREL is a national laboratory of the U.S....

146

Energy Efficiency Links  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Energy Efficiency Organizations Energy Efficiency Organizations Release Date: October 1999 Last Updated: Septembert 2009 EIA Links Disclaimer: These pages contain hypertext links to information created and maintained by other public and private organizations. These links provide additional information that may be useful or interesting and are being provided consistent with the intended purpose of the EIA website. EIA does not control or guarantee the accuracy, relevance, timeliness, or completeness of this outside information. EIA does not endorse the organizations sponsoring linked websites, the views they express, or the products and services they offer. U.S. Federal Government / Regional / U.S. Nonprofit / International U.S. Federal Government and Related Agencies

147

Geothermal: Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

GEOTHERMAL TECHNOLOGIES LEGACY COLLECTION - Related Links Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About...

148

Hydrology Group - Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

links to relevant web pages within the Pacific Northwest National Laboratory and the Hanford Site. . Battelle Environmental Molecular Sciences Laboratory (EMSL) Energy and...

149

ZeptoOS // Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links ZeptoOS-specific resources: Subversion repository Kernel GIT repository Bug tracking system Blue Gene resources: ALCF: Argonne Leadership Computing Facility Blue Gene...

150

What is the Potential for Carbon Sequestration by the Terrestrial...  

NLE Websites -- All DOE Office Websites (Extended Search)

What is the Potential for Carbon Sequestration by the Terrestrial Biosphere? Roger C. Dahlman 1 , Gary K. Jacobs 2 , and F. Blaine Metting, Jr. 2 This paper highlights some of...

151

DOE Regional Partnership Successfully Demonstrates Terrestrial CO2 Storage  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Successfully Demonstrates Terrestrial CO2 Successfully Demonstrates Terrestrial CO2 Storage Practices in Great Plains Region of U.S. and Canada DOE Regional Partnership Successfully Demonstrates Terrestrial CO2 Storage Practices in Great Plains Region of U.S. and Canada August 19, 2010 - 1:00pm Addthis Washington, DC - A field test demonstrating the best approaches for terrestrial carbon dioxide (CO2) storage in the heartland of North America has been successfully completed by one of the U.S. Department of Energy's (DOE) seven Regional Carbon Sequestration Partnerships (RCSPs). The Plains CO2 Reduction (PCOR) Partnership , a collaboration of over 80 U.S. and Canadian stakeholders, conducted the field test at sites in the Prairie Pothole Region, extending from central Iowa into Northern Alberta,

152

Integrated plant nutrient management on diversified cropping system in aqua-terrestrial ecosystem for yield potentiality, quality and rural sustainability  

E-Print Network (OSTI)

which makes it viable for the rural farming community.ICAR, DoLR, Ministry of Rural Development, and Govt. ofscatteredly utilized by the rural farming community for fish

PUSTE, ANANDAMOY DR.; DE, PRALAY ER.; MAITY, TAPAN KUMAR DR.

2009-01-01T23:59:59.000Z

153

Integrated plant nutrient management on diversified cropping system in aqua-terrestrial ecosystem for yield potentiality, quality and rural sustainability  

E-Print Network (OSTI)

Agronomic Management of Wetland Crops, published by Kalyanion these aquatic beneficial crops for obtaining higherof aquatic food and non-food crops in neglected way ( Puste,

PUSTE, ANANDAMOY DR.; DE, PRALAY ER.; MAITY, TAPAN KUMAR DR.

2009-01-01T23:59:59.000Z

154

Terrestrial carbon cycle dynamics under recent and future climate change  

E-Print Network (OSTI)

The behavior of the terrestrial carbon cycle under historical and future climate change is examined using the University of Victoria Earth System Climate Model, now coupled to a dynamic terrestrial vegetation and global carbon cycle model. When forced by historical emissions of CO 2 from fossil fuels and land-use change, the coupled climate–carbon cycle model accurately reproduces historical atmospheric CO 2 trends, as well as terrestrial and oceanic uptake for the past two decades. Under six twenty-first-century CO 2 emissions scenarios, both terrestrial and oceanic carbon sinks continue to increase, though terrestrial uptake slows in the latter half of the century. Climate–carbon cycle feedbacks are isolated by comparing a coupled model run with a run where climate and the carbon cycle are uncoupled. The modeled positive feedback between the carbon cycle and climate is found to be relatively small, resulting in an increase in simulated CO 2 of 60 ppmv at the year 2100. Including non-CO 2 greenhouse gas forcing and increasing the model’s climate sensitivity increase the effect of this feedback to 140 ppmv. The UVic model does not, however, simulate a switch from a terrestrial carbon sink to a source during the twenty-first century, as earlier studies have suggested. This can be explained by a lack of substantial reductions in simulated vegetation productivity due to climate changes. 1.

H. Damon Matthews; Andrew J. Weaver; Katrin; J. Meissner

2005-01-01T23:59:59.000Z

155

EFFECTS OF ELEVATED CO2 ON ROOT FUNCTION AND SOIL RESPIRATION IN A MOJAVE DESERT ECOSYSTEM  

DOE Green Energy (OSTI)

Increases in atmospheric CO{sub 2} concentration during the last 250 years are unequivocal, and CO{sub 2} will continue to increase at least for the next several decades (Houghton et al. 2001, Keeling & Whorf 2002). Arid ecosystems are some of the most important biomes globally on a land surface area basis, are increasing in area at an alarming pace (Dregne 1991), and have a strong coupling with regional climate (Asner & Heidebrecht 2005). These water-limited ecosystems also are predicted to be the most sensitive to elevated CO{sub 2}, in part because they are stressful environments where plant responses to elevated CO{sub 2} may be amplified (Strain & Bazzaz 1983). Indeed, all C{sub 3} species examined at the Nevada Desert FACE Facility (NDFF) have shown increased A{sub net} under elevated CO{sub 2} (Ellsworth et al. 2004, Naumburg et al. 2003, Nowak et al. 2004). Furthermore, increased shoot growth for individual species under elevated CO{sub 2} was spectacular in a very wet year (Smith et al. 2000), although the response in low to average precipitation years has been smaller (Housman et al. 2006). Increases in perennial cover and biomass at the NDFF are consistent with long term trends in the Mojave Desert and elsewhere in the Southwest, indicating C sequestration in woody biomass (Potter et al. 2006). Elevated CO{sub 2} also increases belowground net primary production (BNPP), with average increases of 70%, 21%, and 11% for forests, bogs, and grasslands, respectively (Nowak et al. 2004). Although detailed studies of elevated CO{sub 2} responses for desert root systems were virtually non-existent prior to our research, we anticipated that C sequestration may occur by desert root systems for several reasons. First, desert ecosystems exhibit increases in net photosynthesis and primary production at elevated CO{sub 2}. If large quantities of root litter enter the ecosystem at a time when most decomposers are inactive, significant quantities of carbon may be stored belowground in relatively recalcitrant forms. Indeed, a model-based analysis predicted that the arid/semiarid southwestern bioclimatic region had one of the highest rates of net carbon storage in the United States over the past century (Schimel et al. 2000). Second, root systems of desert plants are often extensive (Foxx et al. 1984, Hartle et al. 2006) with relatively large proportions of roots deep in the soil (Schenk & Jackson 2002). Thus, an understanding of belowground processes in desert ecosystems provides information on the potential for terrestrial carbon sequestration in desert ecosystems.

Nowak, Robert S.

2007-12-19T23:59:59.000Z

156

Diversity Links; Diversity Office  

NLE Websites -- All DOE Office Websites (Extended Search)

Source Disclaimer: Links and/or hyperlinks on this page may contain information gathered from public sources outside Brookhaven National Laboratory. This information is for reference purposes only and, as such, there is no endorsement of products or services therein, nor is BNL responsible for any content inaccuracies. By clicking any of the aforementioned links and/or hyperlinks, you acknowledge your understanding and agreement with this statement. Source Disclaimer: Links and/or hyperlinks on this page may contain information gathered from public sources outside Brookhaven National Laboratory. This information is for reference purposes only and, as such, there is no endorsement of products or services therein, nor is BNL responsible for any content inaccuracies. By clicking any of the aforementioned links and/or hyperlinks, you acknowledge your understanding and agreement with this statement. Diversity Links BNL & DOE Diversity Links Minority Recruitment Links BNL & DOE Diversity Links Brookhaven National Laboratory (BNL) Brookhaven Advocacy Council (BAC) Brookhaven Employees Recreation Association (BERA) | BERA Clubs U.S. DOE Office of Civil Rights and Diversity U.S. DOE Office of Civil Rights and Diversity - Homepage

157

TERMOD 2; an interactive code for analysing intake of radionuclides by man through terrestrial pathways  

E-Print Network (OSTI)

TERMOD 2; an interactive code for analysing intake of radionuclides by man through terrestrial pathways

Zach, R

1978-01-01T23:59:59.000Z

158

Microsoft Word - Additional links  

Office of Legacy Management (LM)

Links: Links: Link to annual groundwater reports on LM website: http://www.lm.doe.gov/Monticello/Documents.aspx#gwreports Links to peer-reviewed papers referenced in the Program Status and Analytical Update (Note: Due to copyright restrictions, links to these papers, rather than reproductions, are provided): a. Harding, Lee E. "Non-linear uptake and hormesis effects of selenium in red- winged blackbirds (Agelaius phoeniceus)". Science of the Total Environment 389 (2008) 350-366. Available through sciencedirect at: http://www.sciencedirect.com/science/article/pii/S0048969707010029 b. King, Kirke A. and Thomas W. Custer. "Reproductive Success of Barn Swallows Nesting Near a Selenium-Contaminated Lake in East Texas, USA". Environmental Pollution 84 (1994) 53-58. Available through sciencedirect at:

159

Ecosystem Management Team | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ecosystem Management Team Ecosystem Management Team Ecosystem Management Team Objectives The U.S. Department of Energy (DOE) is evaluating methods of reducing the long-term costs and risks associated with operating, monitoring, and managing its legacy sites. For example, vegetation management is a significant and growing component of annual maintenance costs at legacy sites. Long-term surveillance plans often require suppression of plant growth on rock-covered disposal cells because scientists have concerns that (1) plants' roots may increase water percolation through compacted soil layers into buried contaminated material (and hence, increase the potential for spreading contamination), or (2) roots may take up and disperse buried contaminants (e.g., wind may spread contaminated plant materials or

160

Coso geothermal environmental overview study ecosystem quality  

DOE Green Energy (OSTI)

The Coso Known Geothermal Resource Area is located just east of the Sierra Nevada, in the broad transition zone between the Mohave and Great Basin desert ecosystems. The prospect of large-scale geothermal energy development here in the near future has led to concern for the protection of biological resources. Objectives here are the identification of ecosystem issues, evaluation of the existing data base, and recommendation of additional studies needed to resolve key issues. High-priority issues include the need for (1) site-specific data on the occurrence of plant and animal species of special concern, (2) accurate and detailed information on the nature and extent of the geothermal resource, and (3) implementation of a comprehensive plan for ecosystem protection.

Leitner, P.

1981-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Lighting Group: Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Links Organizations Illuminating Engineering Society of North America (IESNA) International Commission on Illumination (CIE) International Association of Lighting Designers (IALD) International Association of Energy-Efficient Lighting Lightfair International Energy Agency - Task 21: Daylight in Buildings: Design Tools and Performance Analysis International Energy Agency - Task 31: Daylighting Buildings in 21st Century National Association on Qualifications for the Lighting Professions (NCQLP) National Association of Independent Lighting Distributors (NAILD) International Association of Lighting Management Companies (NALMCO) Research Centers California Lighting Technology Center Lighting Research Center Lighting Research at Canada Institute for Research in Construction

162

Bursty traffic over bursty links  

Science Conference Proceedings (OSTI)

Accurate estimation of link quality is the key to enable efficient routing in wireless sensor networks. Current link estimators focus mainly on identifying long-term stable links for routing. They leave out a potentially large set of intermediate links ... Keywords: bursty links, link estimation, routing

Muhammad Hamad Alizai; Olaf Landsiedel; Jó Ágila Bitsch Link; Stefan Götz; Klaus Wehrle

2009-11-01T23:59:59.000Z

163

Hybrid Vehicle Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Hybrid Links Hybrid Links Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov Web site. We offer these external links for your convenience in accessing additional information that may be useful or interesting to you. Hybrid Vehicles and Manufacturers Acura ILX Hybrid Audi Q5 Hybrid BMW ActiveHybrid 3 ActiveHybrid 5 ActiveHybrid 7 Buick LaCrosse eAssist* Regal eAssist* Chevrolet Malibu Eco* Impala eAssist* Ford Fusion Hybrid Honda Accord Hybrid Civic Hybrid Honda CR-Z Honda Insight Hyundai Sonata Hybrid Infiniti M Hybrid Q50 Hybrid Q50 S Hybrid QX60 Hybrid Kia Optima Hybrid Lexus CT 200h Lexus ES 300h GS 450h LS 600h L RX 450h Lincoln MKZ Hybrid Mercedes-Benz Mercedes E400 Hybrid Nissan Pathfinder Hybrid Porsche Cayenne S Hybrid Subaru XV Crosstrek Hybrid Toyota Avalon Hybrid

164

Fuel Cell Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Fuel Cell Links Fuel Cell Links The links below are provided as additional resources for fuel-cell-related information. Most of the linked sites are not part of, nor affiliated with, fueleconomy.gov. We do not endorse or vouch for the accuracy of the information found on such sites. Fuel Cell Vehicles and Manufacturers Chevrolet General Motors press release about the Chevrolet Fuel Cell Equinox Ford Ford overview of their hydrogen fuel cell vehicles Honda FCX Clarity official site Hyundai Hyundai press release announcing the upcoming Tucson Fuel Cell Mercedes-Benz Ener-G-Force Fuel-cell-powered concept SUV Nissan Nissan TeRRA concept SUV Toyota Overview of Toyota fuel cell technology Hydrogen- and Fuel-Cell-Related Information and Tools Fuel Cell Vehicles Brief overview of fuel cell vehicles provided by DOE's Alternative Fuels Data Center (AFDC)

165

Links of Interest  

NLE Websites -- All DOE Office Websites (Extended Search)

Links of Interest: EM FY 2014 Budget Priorities EM Site Specific Advisory Board Site Treatment Plan for Mixed Wastes Stewardship URS | CH2M Oak Ridge, LLC (UCOR)* Wastren...

166

Sector 30 - useful links  

NLE Websites -- All DOE Office Websites (Extended Search)

Useful Links Sector 30 Sector Orientation Form HERIX experiment header for lab book MERIX experiment header for lab book Printing from your laptop at the beamline Other IXS sectors...

167

COMMENTARIES Opening the Black Boxes: Ecosystem  

E-Print Network (OSTI)

COMMENTARIES Opening the Black Boxes: Ecosystem Science and Economic Valuation Stephen R. Carpenter and nature, then diverse disciplines must learn to view each other as more than just another black box. ``The'' must become more than just another state variable to the economist. As the black boxes have opened up

Turner, Monica G.

168

Louisiana Coastal Area, Louisiana Ecosystem Restoration  

E-Print Network (OSTI)

1 Louisiana Coastal Area, Louisiana Ecosystem Restoration Six Projects Authorized by Section 7006(e for the Louisiana Coastal Area, dated January 31, 2005, (hereinafter referred to as the "restoration plan"), described a program to address the most critical restoration needs to reduce the severe wetland losses

US Army Corps of Engineers

169

Argonne Terrestrial Carbon Cycle Data from Batvia Prairie and Agricultural Sites  

DOE Data Explorer (OSTI)

Carbon dioxide fluxes and stocks in terrestrial ecosystems are key measurements needed to constrain quantification of regional carbon sinks and sources and the mechanisms controlling them. This information is required to produce a sound carbon budget for North America. This project examines CO2 and energy fluxes from agricultural land and from restored tallgrass prairie to compare their carbon sequestration potentials. The study integrates eddy covariance measurements with biometric measurements of plant and soil carbon stocks for two systems in northeastern Illinois: 1) long-term cultivated land in corn-soybean rotation with conventional tillage, and 2) a 15 year-old restored prairie that represents a long-term application of CRP conversion of cultivated land to native vegetation. The study contributes to the North American Carbon Program (NACP) by providing information on the magnitude and distribution of carbon stocks and the processes that control carbon dynamics in cultivated and CRP-restored land in the Midwest. The prairie site has been functioning since October 2004 and the agricultural site since July 2005. (From http://www.atmos.anl.gov/ FERMI/index.html)

Matamala, Roser [ANL; Jastrow, Julie D.; Lesht, Barry [ANL; Cook, David [ANL; Pekour, Mikhail [ANL; Gonzalez-Meler, Miquel A. [University of Illinois at Chicago

170

Evidence for Biomagnification of Gold Nanoparticles within a Terrestrial Food Chain  

Science Conference Proceedings (OSTI)

Nanoparticles from the rapidly increasing number of consumer products that contain manufactured nanomaterials are being discharged into waste streams. Increasing evidence suggests that several classes of nanomaterials may accumulate in sludge derived from wastewater treatment and ultimately in soil following land application as biosolids. Little research has been conducted to evaluate the impact of nanoparticles on terrestrial ecosystems, despite the fact that land application of biosolids from wastewater treatment will be a major pathway for the introduction of manufactured nanomaterials to the environment. To begin addressing this knowledge gap, we used the model organisms Nicotiana tabacum L. cv Xanthi and Manduca sexta (tobacco hornworm) to investigate plant uptake and the potential for trophic transfer of 5, 10, and 15 nm diameter gold (Au) nanoparticles (NPs). Samples were analyzed using both bulk analysis by inductively coupled plasma mass spectrometry (ICP-MS) as well as spatially resolved methods such as laser ablation inductively coupled mass spectrometry (LA-ICP-MS) and X-ray fluorescence ({mu}XRF). Our results demonstrate trophic transfer and biomagnification of gold nanoparticles from a primary producer to a primary consumer by mean factors of 6.2, 11.6, and 9.6 for the 5, 10, and 15 nm treatments, respectively. This result has important implications for risks associated with nanotechnology, including the potential for human exposure.

J Judy; J Unrine; P Bertsch

2011-12-31T23:59:59.000Z

171

Development of a General Ecosystem Model for a Range of Scales and Ecosystems  

E-Print Network (OSTI)

We have developed a General Ecosystem Model (GEM) that is designed to simulate a variety of ecosystem types using a fixed model structure. Driven largely by hydrologic algorithms for upland, wetland and shallow-water habitats, the model captures the response of macrophyte and algal communities to simulated levels of nutrients, water, and environmental inputs. It explicitly incorporates ecological processes that determine water levels, plant production, nutrient cycling associated with organic matter decomposition, consumer dynamics, and fire. While the model may be used to simulate ecosystem dynamics for a single homogenous habitat, our primary objective is to replicate it as a "unit" model in heterogeneous, grid-based dynamic spatial models using different parameter sets for each habitat. Thus, we constrained the process (i.e., computational) complexity, yet targeted a level of disaggregation that would effectively capture the feedbacks among important ecosystem processes. A basic ver...

H. C. Fitz; E. B. DeBellevue; R. Costanza; R. Boumans; T. Maxwell; L. Wainger; F.H. Sklar

1994-01-01T23:59:59.000Z

172

Final Technical Report: Effects of Changing Water and Nitrogen Inputs on a Mojave Desert Ecosystem  

SciTech Connect

In order to anticipate the effects of global change on ecosystem function, it is essential that predictive relationships be established linking ecosystem function to global change scenarios. The Mojave Desert is of considerable interest with respect to global change. It contains the driest habitats in North America, and thus most closely approximates the world’s great arid deserts. In order to examine the effects of climate and land use changes, in 2001 we established a long-term manipulative global change experiment, called the Mojave Global Change Facility. Manipulations in this study include the potential effects of (1) increased summer rainfall (75 mm over three discrete 25 mm events), (2) increased nitrogen deposition (10 and 40 kg ha-1), and (3) the disturbance of biological N-fixing crusts . Questions addressed under this grant shared the common hypothesis that plant and ecosystem performance will positively respond to the augmentation of the most limiting resources to plant growth in the Mojave Desert, e.g., water and nitrogen. Specific hypotheses include (1) increased summer rainfall will significantly increase plant production through an alleviation of moisture stress in the dry summer months, (2) N-deposition will increase plant production in this N-limited system, particularly in wet years or in concert with added summer rain, and (3) biological crust disturbance will gradually decrease bio-available N, with concomitant long-term reductions in photosynthesis and ANPP. Individual plant and ecosystem responses to global change may be regulated by biogeochemical processes and natural weather variability, and changes in plant and ecosystem processes may occur rapidly, may occur only after a time lag, or may not occur at all. During the first PER grant period, we observed changes in plant and ecosystem processes that would fall under each of these time-response intervals: plant and ecosystem processes responded rapidly to added summer rain, whereas most processes responded slowly or in a lag fashion to N-deposition and with no significant response to crust disturbance. Therefore, the primary objectives of this renewal grant were to: (1) continue ongoing measurements of soil and plant parameters that assess primary treatment responses; (2) address the potential heterogeneity of soil properties and (3) initiate a new suite of measurements that will provide data necessary for scaling/modeling of whole-plot to ecosystem-level responses. Our experimental approach included soil plant-water interactions using TDR, neutron probe, and miniaturized soil matric potential and moisture sensors, plant ecophysiological and productivity responses to water and nitrogen treatments and remote sensing methodologies deployed on a radio control platform. We report here the most significant findings of our study.

Smith, Stanley, D.; Nowak, Robert S.; Fenstermaker, Lynn, F.; Young, Michael,H.

2007-11-30T23:59:59.000Z

173

[A field study of the effects of elevated CO2 concentration on physiology an ecosystem processes in Chesapeake Bay Wetland]. [Annual] progress report, 1989--1990  

DOE Green Energy (OSTI)

Research during 1988--1989 focused on several new aspects of the response of the salt marsh ecosystem to elevated CO{sub 2} of the effect of CO{sub 2} on biomass production into above and belowground tissues, nitrogen content, light response of photosynthesis of single leaves, leaf water potential and carbon dioxide and water vapor exchange between the plant canopy and the ambient air. Result from the work in 87 and 88 had shown that the C{sub 3} plant, Scirpus olneyi, responded vigorously to elevated CO{sub 2} but the two C{sub 4} species, Spartina patens and Distichlis spicata did not. The responses of photosynthesis were also reflected in the canopy and ecosystem processes: Carbon accumulated in the C{sub 3} community into belowground tissues but not in the C{sub 4} community suggesting that the main factor in the ecosystem responses would be photosynthesis and that the environmental controls on this process would determine the long-term ecosystem responses to rising CO{sub 2}. The main question at the outset of this project was: How much more carbon will be accumulated in the salt marsh ecosystem in a high CO{sub 2} atmosphere than is being accumulated under present CO{sub 2} concentration? This experiment has raised the possibility that rising CO{sub 2} will make the salt marsh ecosystem a bigger sink for carbon than we have previously thought it to be. By extrapolation, this finding suggests that other, terrestrial ecosystems may also become larger sinks for carbon.

Not Available

1990-12-31T23:59:59.000Z

174

Ecosystem approach: Healthy ecosystems and sustainable economies. Volume 3. Case studies. Final report  

Science Conference Proceedings (OSTI)

The case study report of the Interagency Ecosystem Management Task Force presents findings and recommendations from seven survey teams, details the nature, history, and current status of each ecosystem, and summarizes survey team interviews with many participating parties. The volume targets those interested in how ecosystem partnerships work. Ecosystems include: Anacostia River watershed--state and local agencies are restoring components of this system of marshes, rivers, forests in urban environments: Coastal Louisiana--a federal task force and the state of Louisiana are restoring wetlands to reverse the trend of losses; Great Lakes basin--local communities joined with governmental agencies to reverse pollution and habitat degradation; Pacific Northwest forests--an interagency effort is protecting both forest ecosystems and the region`s economic health; Prince William Sound--a state/federal trustee council is restoring the ecosystem following the Exxon Valdez oil spill: South Florida--a federal task force is restoring habitat in the Everglades; and Southern Appalachians--the Man and Biosphere program is working with communities to restore habitats.

NONE

1996-03-01T23:59:59.000Z

175

An ecologically inspired simulation tool for managing digital ecosystems  

Science Conference Proceedings (OSTI)

In this paper we present an ecologically inspired multi-agent based simulation tool for finding and analysing networks of collaborations in a digital ecosystem. Digital ecosystems are defined as open, self-organising environments inside which digital ... Keywords: collaboration, complex networks, digital ecosystems, ecology, multi-agent systems, mutualism

Miguel Lurgi

2010-10-01T23:59:59.000Z

176

Linking flux network measurements to continental scale simulations: ecosystem carbon dioxide exchange capacity  

E-Print Network (OSTI)

FROM EASTERN MASSACHUSETTS W. WYATT OSWALD Harvard Forest, Harvard University, Petersham, MA 01366 e, Minneapolis, MN 55455 DAVID R. FOSTER Harvard Forest, Harvard University, Petersham, MA 01366 The analysis

177

Terrestrial Carbon Sequestration - Science for Enhancement and Implementation  

Science Conference Proceedings (OSTI)

It is time to re-evaluate all available options that might not be permanent yet have the potential to buy time, bridging to a future when new energy system technologies and a transformed energy infrastructure can fully address the climate challenge. Terrestrial sequestration is one option large enough to make a contribution in the coming decades using proven land management methods and with the possibility that new technologies could significantly enhance the opportunity. Here we review progress on key scientific, economic, and social issues; postulate the extent to which new technologies might significantly enhance terrestrial sequestration potential; and address remaining research needs.

Post, Wilfred M [ORNL; Amonette, James [Pacific Northwest National Laboratory (PNNL); Birdsey, Richard A. [U.S. Department of Agriculture Forest Service; Garten Jr, Charles T [ORNL; Graham, Robin Lambert [ORNL; Izaurralde, Dr. R. Cesar [Pacific Northwest National Laboratory (PNNL); Jardine, Philip M [ORNL; Jastrow, Julie D [ORNL; Lal, Dr. Rattan [Ohio State University; Marland, Gregg [ORNL; McCarl, Bruce [Texas A& M University; Thomson, Dr. Allison [Pacific Northwest National Laboratory (PNNL); West, Tristram O. [ORNL; Wullschleger, Stan D [ORNL; Metting, F. Blaine [Pacific Northwest National Laboratory (PNNL)

2009-01-01T23:59:59.000Z

178

BCDA Machine Status Link  

NLE Websites -- All DOE Office Websites (Extended Search)

Machine Status Link Machine Status Link Version 1.33 (December 2005) David M. Kline. The Machine Status Link (MSL) is responsible for distributing the digitized beam current, injection status, P0 clock, and other statuses over a single fiber to several locations around the Storage Ring. The MRD100 is a VME-based module that is part of the MSL and was specifically designed for the APS. It receives and interprets information from the XMS100 module by means of copper or fiber. Signals from the XMS100 module are sent at a P0 rate (3.667 microseconds). It sends two registers every cycle and all in about 12 cycles. Refer to the ASD website for additional information regarding the MSL. The focus of this page is to provide information of how to configure the MRD100 for a beamline IOC and to discuss the sample IOC

179

Global Climate Change Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Climate Change Links Global Climate Change Links This page provides links to web pages that we at CDIAC feel do a responsible job of presenting information and discussion pertinent to the science behind the global climate change ("global warming") debate. These sites include those on both sides of the debate; some asserting that global warming is a clear and present danger, and others that might be labeled global warming "skeptics." Some of these sites don't take a position per se; they exist to offer the public objective scientific information and results on our present understanding of the climate system. The list is not intended to be comprehensive, by any means. We hope it will be especially helpful for those who may be just beginning their research into global

180

Ecosystem Services Decision Tree: A Decision-Support Tool for Consideration of Ecosystem Services in the Electric Power Industry  

Science Conference Proceedings (OSTI)

To support the electric power industry in more structured consideration of ecosystem services, EPRI has developed this “Decision Tree” to determine why, when, and how to consider ecosystem services. EPRI anticipates that this Decision Tree will facilitate more efficient decision-making and action relating to ecosystem services. 

2012-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

All-Electric Vehicle Links  

NLE Websites -- All DOE Office Websites (Extended Search)

All-Electric Vehicle Links Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov website. We offer these external links for your convenience in...

182

Modelling the effect of ecosystem change on spawning per recruit of Baltic herring  

E-Print Network (OSTI)

A plea for linking assessment and management to the broader ecosystem state has been made several times in the fisheries literature. The need for ecosystem considerations is obvious for Baltic herring stock which has experienced large fluctuations in growth and natural mortality rate. Biological reference points, based on stock-recruitment data, have gained importance under precautionary approach and the need for more restrictive management. An alternative method for establishing thresholds for recruitment overfishing is spawning per recruit analysis. Within this context, understanding the effects of highly variable natural mortality and growth rate on fishing mortality reference point is of interest. We used Monte Carlo simulations to investigate variation in spawning per recruit caused by varying stock attributes. Causal biological response to changing environmental conditions was created by adjusting the correlation between growth, maturity, and natural mortality. The correlation of the input variables was controlled under three models, assuming future conditions were (1) as

Mika Rahikainen; Sakari Kuikka; Raimo Parmanne

2003-01-01T23:59:59.000Z

183

Department of Energy Idaho - Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links DOE - HQ Headquarters - Washington, DC DOE - NE Office of Nuclear Energy DOE - EM Office of Environmental Management DOE Field Offices Radiological and Environmental...

184

Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Chapter Albuquerque, NM > Links Links "Promoting Equal Opportunity and Cultural Diversity for APAs in Government" FAPAC, Washington DC Printer-friendly version...

185

BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH  

E-Print Network (OSTI)

BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH Faculty Position in Solar Physics, New Jersey Institute of Technology A tenure track faculty position in solar physics is available of NJIT's program in solar physics, visit http://solar.njit.edu. Applicants are required to have a Ph

186

Carbon flow and ecosystem dynamics in the Mississippi River plume described by inverse analysis  

E-Print Network (OSTI)

Planktonic ecosystem dynamics in the buoyant Mississippi River plume were investigated using inverse analysis, a technique that incorporates data describing ecosystem processes and calculates rates of unknown trophic flows and sedimentation in the plume ecosystem. The waters receiving the Mississippi River were divided into four subregions connected by water flow to discretize the gradient of ecosystem properties as river water mixed with ocean water. Each subregion was represented by eight interconnected compartments that were linked to adjacent subregions by advective carbon flow. Models were produced for 4 seasons. Solutions for three seasons (spring, summer, and fall) showed a small region of net autotrophy associated with mid-salinity waters (15-29 psu), surrounded by a larger region of net heterotrophic waters where production did not meet respiratory carbon demand. In addition to moving more than 20% of total plume primary productivity out of the study region, westward water flow moved excess organic carbon from autotrophic regions to heterotrophic regions. In contrast, the winter result indicated a plume that was net-heterotrophic in all 4 subregions with high aerobic bacterial respiration and relatively low primary production that did not meet respiratory demand. Inputs of riverine DOC and carbon from resuspended sediments were required to make up the deficit. Sedimentation of organic carbon was linked to primary production in the mid-salinity regions of the plume, with strongest sedimentation from the productive mid-salinity regions during most of the year. Sedimentation was enhanced beneath less productive, higher salinity areas, due to inputs of organic carbon advected from mid-salinity regions. During winter organic carbon sedimentation was calculated to be zero. The models indicated that a dynamic relationship between primary production and sedimentation exists and provide a good starting point for future development of models which directly address the relationships between nutrient inputs, primary production, sedimentation, and hypoxia in the economically and environmental important regions of the Louisiana Shelf.

Breed, Greg Allen

2002-01-01T23:59:59.000Z

187

Twentieth-Century Droughts and Their Impacts on Terrestrial Carbon Cycling in China  

Science Conference Proceedings (OSTI)

Midlatitude regions experienced frequent droughts during the twentieth century, but their impacts on terrestrial carbon balance are unclear. This paper presents a century-scale study of drought effects on the carbon balance of terrestrial ...

Jingfeng Xiao; Qianlai Zhuang; Eryuan Liang; Xuemei Shao; A. David McGuire; Aaron Moody; David W. Kicklighter; Jerry M. Melillo

2009-09-01T23:59:59.000Z

188

The Universe Adventure - Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Links Cosmology and Space Cosmic Journey A site chronicling the history of scientific cosmology, presented by the American Institute of Physics. Hubble Ultra-Deep Field Skywalker Lets you explore the famous Hubble Deep Field photo, which is the deepest view (in the visible spectrum) into the sky to date. QuietBay Constellation Tutorial A fun and easy tutorial to familiarize yourself with the night sky. Astronomy Picture of the Day Astronomy Picture of the Day features a new image from the universe every day, with short explanations written by professional astronomers. The Solar System NASA site that includes images and profiles of the planets (plus Pluto). Earth Guide An Earth planetary science site created by the Japan Science and Technology Agency describing many of the features of Earth and its place in the

189

Radio emissions from terrestrial gamma-ray flashes Joseph R. Dwyer1  

E-Print Network (OSTI)

. Introduction 1.1. TGF Theory Overview [2] Terrestrial gamma-ray flashes (TGFs) are bright bursts of gamma raysRadio emissions from terrestrial gamma-ray flashes Joseph R. Dwyer1 and Steven A. Cummer2 Received frequency (RF) emissions by terrestrial gamma-ray flashes (TGFs) is developed. These radio emissions, which

Cummer, Steven A.

190

Pages that link to "Rockies Area" | Open Energy Information  

Open Energy Info (EERE)

( links) Simply Efficient ( links) Solix Biofuels ( links) Sun Dog Energy ( links) Techsolas LLC ( links) Toltec Energy ( links) Tri...

191

Balanced link for dry coal extrusion pumps  

Science Conference Proceedings (OSTI)

A link which defines a link body that includes a multiple of link plates integral with a link body, the link body disposed at least partially forward of a forward edge of the multiple of link plates.

Bebejian, Maral

2013-10-22T23:59:59.000Z

192

NREL: Awards and Honors - Triple-Junction Terrestrial Concentrator Solar  

NLE Websites -- All DOE Office Websites (Extended Search)

Triple-Junction Terrestrial Concentrator Solar Cell Triple-Junction Terrestrial Concentrator Solar Cell Developers: Dr. Jerry Olson, Dr. Sarah Kurtz, Dr. Daniel Friedman, Alan Kibbler, and Charlene Karmer, National Renewable Energy Laboratory; Dr. Richard King, Jim Ermer, Dmitri D. Krut, Hector Cotal, Peter Colter, Hojun Yoon, Nassar Karam, and Gregory S. Glenn, Spectrolab, Inc. The triple-junction solar cell - or TJ solar cell - generates a lot of energy from just a very little amount of material. How much energy? A 1-cm2 cell can generate as much as 35 W of power and produce as much as 86.3 kWh of electricity during a typical year under a Phoenix, AZ sun. This means that 100 to 150 of these cells could produce enough electricity to power the typical American household. This cell can do this, first, because it

193

TERRESTRIAL, HABITABLE-ZONE EXOPLANET FREQUENCY FROM KEPLER  

Science Conference Proceedings (OSTI)

Data from Kepler's first 136 days of operation are analyzed to determine the distribution of exoplanets with respect to radius, period, and host-star spectral type. The analysis is extrapolated to estimate the percentage of terrestrial, habitable-zone (HZ) exoplanets. The Kepler census is assumed to be complete for bright stars (magnitude 0.5 Earth radius and periods <42 days. It is also assumed that the size distribution of planets is independent of orbital period and that there are no hidden biases in the data. Six significant statistical results are found: there is a paucity of small planet detections around faint target stars, probably an instrumental effect; the frequency of mid-size planet detections is independent of whether the host star is bright or faint; there are significantly fewer planets detected with periods <3 days, compared to longer periods, almost certainly an astrophysical effect; the frequency of all planets in the population with periods <42 days is 29%, broken down as terrestrials 9%, ice giants 18%, and gas giants 3%; the population has a planet frequency with respect to period which follows a power-law relation dN/dP {approx} P{sup {beta}-1}, with {beta} {approx_equal} 0.71 {+-} 0.08; and an extrapolation to longer periods gives the frequency of terrestrial planets in the HZs of FGK stars as {eta}{sub Circled-Plus} {approx_equal} (34 {+-} 14)%. Thus about one-third of FGK stars are predicted to have at least one terrestrial, HZ planet.

Traub, Wesley A., E-mail: wtraub@jpl.nasa.gov [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-01-20T23:59:59.000Z

194

Gulf of Mexico Regional Ecosystem Restoration Strategy, Gulf Coast Ecosystem Restoration Task Force, December 2011  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

c c Gulf of Mexico Regional Ecosystem Restoration Strategy Gulf Coast Ecosystem Restoration Task Force December 2011 G u l f C o a s t E c o s y s t e m R e s t o r a t i o n T a s k F o r c e Cover Photo Credits: Brown pelicans: U.S. Fish and Wildlife Service Volunteer planting marsh grass: U.S. Fish and Wildlife Service, Steve Hillebrand Turtle: Texas Parks and Wildlife Department Wetlands: U.S. Fish and Wildlife Service Boats: Mississippi Development Authority, Tourism Division Nothing in this document is intended to create private rights of action or other enforceable individual legal rights. ©2011 Google Earth Map of Gulf of Mexico Coast US Gulf of Mexico Regional Ecosystem Restoration Strategy Gulf Coast Ecosystem Restoration Task Force December 2011 G u l f C o a s t E c o s y s t e m R e

195

Pages that link to "EU-UNDP Low Emission Capacity Building Programme...  

Open Energy Info (EERE)

( links) Argentina ( links) Egypt ( links) Moldova ( links) Thailand ( links) Colombia ( links) Peru ( links) Malaysia (...

196

Kootenai River Ecosystem Finding of No Significant Impact (FONSI)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Kootenai River Ecosystem Kootenai River Ecosystem Finding of No Significant Impact (FONSI) June 2005 1 Department of Energy BONNEVILLE POWER ADMINISTRATION Kootenai River Ecosystem Project Finding of No Significant Impact (FONSI) Summary: Bonneville Power Administration (BPA) is proposing to fund the Kootenai River Ecosystem Project. With this funding the Kootenai Tribe of Idaho (KTOI) and Idaho Fish and Game (IDFG) would add liquid nitrogen and phosphorus to the Kootenai River from late June through September for up to five years to replace nutrients lost to the hydrosystem. The goal of this project is to help enhance native fish populations and river health. The nutrients are expected to stimulate production in the Kootenai River's

197

An Overview of Ecosystem Services: Considerations for Electric Power Companies  

Science Conference Proceedings (OSTI)

This topical brief provides an overview of ecosystem services and discusses how electric power companies may leverage these services to increase corporate value and reduce risk.

2012-06-29T23:59:59.000Z

198

Ecosystem Management and Local Governance in the Climate Change...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ecosystem Management and Local Governance in the Climate Change Agenda: Evidence from Mexico's Forestry Sector Speaker(s): Camille Antinori Date: November 20, 2003 - 12:00pm...

199

Olson's Major World Ecosystem Complexes Ranked by Carbon in Live...  

NLE Websites -- All DOE Office Websites (Extended Search)

ecosystem complexes ranked by carbon in live vegetation: A Database. NDP-017, Carbon Dioxide Information Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee. This NDP was...

200

Fermilab | About FermiLINK  

NLE Websites -- All DOE Office Websites (Extended Search)

About FermiLINK About FermiLINK Fermilab Today September 28, 2009 Mentors wanted for Diversity Office's FermiLINK program Fermilab Today October 5, 2009 Mentors wanted for Diversity Office's FermiLINK program Fermilab Today October 13, 2009 FermiLINK Q&A session Fermilab Today November 9, 2009 FermiLINK calls for mentees FermiLINK is FermilabÂ’s mentorship system designed to create an organizational network of leaders by providing opportunities for professional development and career management. This support structure creates access to the counsel and institutional knowledge of successful Fermilab professionals independent of the immediate supervisory hierarchy. FermiLINK provides web-based access to a host of mentors for issue-specific work-related challenges and opportunities. The network supports email,

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Estimation of Net Ecosystem Carbon Exchange for the Conterminous UnitedStates by Combining MODIS and AmeriFlux Data  

Science Conference Proceedings (OSTI)

Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of the tower footprint. To quantify the net exchange of carbon dioxide between the terrestrial biosphere and the atmosphere for regions or continents, flux tower measurements need to be extrapolated to these large areas. Here we used remotely-sensed data from the Moderate Resolution Imaging Spectrometer (MODIS) instrument on board NASA's Terra satellite to scale up AmeriFlux NEE measurements to the continental scale. We first combined MODIS and AmeriFlux data for representative U.S. ecosystems to develop a predictive NEE model using a regression tree approach. The predictive model was trained and validated using NEE data over the periods 2000-2004 and 2005-2006, respectively. We found that the model predicted NEE reasonably well at the site level. We then applied the model to the continental scale and estimated NEE for each 1 km x 1 km cell across the conterminous U.S. for each 8-day period in 2005 using spatially-explicit MODIS data. The model generally captured the expected spatial and seasonal patterns of NEE. Our study demonstrated that our empirical approach is effective for scaling up eddy flux NEE measurements to the continental scale and producing wall-to-wall NEE estimates across multiple biomes. Our estimates may provide an independent dataset from simulations with biogeochemical models and inverse modeling approaches for examining the spatiotemporal patterns of NEE and constraining terrestrial carbon budgets for large areas.

Xiao, Jingfeng; Zhuang, Qianlai; Baldocchi, Dennis D.; Law, Beverly E.; Richardson, Andrew D.; Chen, Jiquan; Oren, Ram; Starr, Gregory; Noormets, Asko; Ma, Siyan; Verma, Shashi B.; Wharton, Sonia; Wofsy, Steven C.; Bolstad, Paul V.; Burns, Sean P.; Cook, David R.; Curtis, Peter S.; Drake, Bert G.; Falk, Matthias; Fischer, Marc L.; Foster, David R.; Gu, Lianhong; Hadley, Julian L.; Hollinger, David Y.; Katul, Gabriel G.; Litvak, Marcy; Martin, Timothy A.; Matamala, Roser; McNulty, Steve; Meyers, Tilden P.; Monson, Russell K.; Munger, J. William; Oechel, Walter C.; U, Kyaw Tha Paw; Schmid, Hans Peter; Scott, Russell L.; Sun, Ge; Suyker, Andrew E.; Torn, Margaret S.

2009-03-06T23:59:59.000Z

202

Estimation of net ecosystem carbon exchange for the conterminous United States by combining MODIS and AmeriFlux data  

Science Conference Proceedings (OSTI)

Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of the tower footprint. To quantify the net exchange of carbon dioxide between the terrestrial biosphere and the atmosphere for regions or continents, flux tower measurements need to be extrapolated to these large areas. Here we used remotely sensed data from the Moderate Resolution Imaging Spectrometer (MODIS) instrument on board the National Aeronautics and Space Administration's (NASA) Terra satellite to scale up AmeriFlux NEE measurements to the continental scale. We first combined MODIS and AmeriFlux data for representative U.S. ecosystems to develop a predictive NEE model using a modified regression tree approach. The predictive model was trained and validated using eddy flux NEE data over the periods 2000-2004 and 2005-2006, respectively. We found that the model predicted NEE well (r = 0.73, p < 0.001). We then applied the model to the continental scale and estimated NEE for each 1 km x 1 km cell across the conterminous U.S. for each 8-day interval in 2005 using spatially explicit MODIS data. The model generally captured the expected spatial and seasonal patterns of NEE as determined from measurements and the literature. Our study demonstrated that our empirical approach is effective for scaling up eddy flux NEE measurements to the continental scale and producing wall-to-wall NEE estimates across multiple biomes. Our estimates may provide an independent dataset from simulations with biogeochemical models and inverse modeling approaches for examining the spatiotemporal patterns of NEE and constraining terrestrial carbon budgets over large areas.

Xiao, Jingfeng; Zhuang, Qianlai; Baldocchi, Dennis D.; Bolstad, Paul V.; Burns, Sean P.; Chen, Jiquan; Cook, David R.; Curtis, Peter S.; Drake, Bert G.; Foster, David R.; Gu, Lianhong; Hadley, Julian L.; Hollinger, David Y.; Katul, Gabriel G.; Law, Beverly E.; Litvak, Marcy; Ma, Siyan; Martin, Timothy A.; Matamala, Roser; McNulty, Steve; Meyers, Tilden P.; Monson, Russell K.; Munger, J. William; Noormets, Asko; Oechel, Walter C.; Oren, Ram; Richardson, Andrew D.; Schmid, Hans Peter; Scott, Russell L.; Starr, Gregory; Sun, Ge; Suyker, Andrew E.; Torn, Margaret S.; Paw, Kyaw; Verma, Shashi B.; Wharton, Sonia; Wofsy, Steven C.

2008-10-01T23:59:59.000Z

203

Recent History of Large-Scale Ecosystem Disturbances in North  

E-Print Network (OSTI)

Satellite Record Christopher Potter,1 * Pang-Ning Tan,2 Vipin Kumar,2 Chris Kucharik,3 Steven Klooster,4 Ecosystem structure and function are strongly im- pacted by major disturbance events (Pickett and White 1985 (Pickett and White 1985; Tilman 1985). Ecosystem disturbances can contribute to the current rise of carbon

Wisconsin at Madison, University of

204

Whole Ecosystem Measurements of Biogenic Hydrocarbon Emissions Final Report  

E-Print Network (OSTI)

of Environmental Science, Policy, and Management Ecosystem Sciences Division 151 Hilgard Hall University Department of Environmental Science, Policy, and Mangement Ecosystem Sciences Division 151 Hilgard Hall thank Dave Bowling for valuable input on development of the Relaxed Eddy Accumulation system. The staff

Cohen, Ronald C.

205

Final Gulf Coast Ecosystem Restoration Task Force Strategic Plan |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Final Gulf Coast Ecosystem Restoration Task Force Strategic Plan Final Gulf Coast Ecosystem Restoration Task Force Strategic Plan Final Gulf Coast Ecosystem Restoration Task Force Strategic Plan The natural resources of the Gulf's ecosystem are vital to many of the region's industries that directly support economic progress and job creation, including tourism and recreation, seafood production and sales, energy production and navigation and commerce. Among the key priorities of the strategy are: 1) Stopping the Loss of Critical Wetlands, Sand Barriers and Beaches The strategy recommends placing ecosystem restoration on an equal footing with historic uses such as navigation and flood damage reduction by approaching water resource management decisions in a far more comprehensive manner that will bypass harm to wetlands, barrier islands and beaches. The

206

Evaluation of CO2 Exchange Rates in a Wetland Ecosystem Using the Closed Geosphere Experiment Facility  

Science Conference Proceedings (OSTI)

To evaluate annual CO2 exchange rates in a wetland ecosystem, ecosystem respiration rate (Re), net ecosystem productivity (NEP), and gross primary productivity (GPP) were investigated using the Closed Geosphere Experiment Facility (CGEF) located ...

Shizuo Suzuki; Masayuki Yokozawa; Kazuyuki Inubushi; Toshihiko Hara; Michitoshi Kimura; Shoichi Tsuga; Yasuhiro Tako; Yuji Nakamura

2012-06-01T23:59:59.000Z

207

Applied Ecosystem Analysis - - a Primer : EDT the Ecosystem Diagnosis and Treatment Method.  

DOE Green Energy (OSTI)

The aim of this document is to inform and instruct the reader about an approach to ecosystem management that is based upon salmon as an indicator species. It is intended to provide natural resource management professionals with the background information needed to answer questions about why and how to apply the approach. The methods and tools the authors describe are continually updated and refined, so this primer should be treated as a first iteration of a sequentially revised manual.

Lestelle, Lawrence C.; Mobrand, Lars E.

1996-05-01T23:59:59.000Z

208

Pages that link to "London, England, United Kingdom" | Open Energy...  

Open Energy Info (EERE)

Limited ( links) UPC Renewables ( links) Uramin Inc ( links) VANE Uranium One JV ( links) Whitefox Technologies Ltd ( links) View (previous 50 |...

209

Pages that link to "Columbus, Ohio" | Open Energy Information  

Open Energy Info (EERE)

( links) Plug Smart ( links) The Ruhlin Company ( links) Edison Welding Institute ( links) Design Group, Inc. ( links) Clean Fuels Ohio ...

210

Applied Ecosystem Analysis - Background : EDT the Ecosystem Diagnosis and Treatment Method.  

DOE Green Energy (OSTI)

This volume consists of eight separate reports. We present them as background to the Ecosystem Diagnosis and Treatment (EDT) methodology. They are a selection from publications, white papers, and presentations prepared over the past two years. Some of the papers are previously published, others are currently being prepared for publication. In the early to mid 1980`s the concern for failure of both natural and hatchery production of Columbia river salmon populations was widespread. The concept of supplementation was proposed as an alternative solution that would integrate artificial propagation with natural production. In response to the growing expectations placed upon the supplementation tool, a project called Regional Assessment of Supplementation Project (RASP) was initiated in 1990. The charge of RASP was to define supplementation and to develop guidelines for when, where and how it would be the appropriate solution to salmon enhancement in the Columbia basin. The RASP developed a definition of supplementation and a set of guidelines for planning salmon enhancement efforts which required consideration of all factors affecting salmon populations, including environmental, genetic, and ecological variables. The results of RASP led to a conclusion that salmon issues needed to be addressed in a manner that was consistent with an ecosystem approach. If the limitations and potentials of supplementation or any other management tool were to be fully understood it would have to be within the context of a broadly integrated approach - thus the Ecosystem Diagnosis and Treatment (EDT) method was born.

Mobrand, Lars E.

1996-05-01T23:59:59.000Z

211

AN EXPLORATORY STUDY OF THE TERRESTRIAL BIOGEOCHEMICAL SILICON CYCLE AT A FORESTED WATERSHED IN NORTHERN VERMONT .  

E-Print Network (OSTI)

??The importance of the global silicon cycle is becoming increasingly recognized because of its role in the consumption of atmospheric CO2. However, the terrestrial component… (more)

Garvin, Christopher J.

2006-01-01T23:59:59.000Z

212

Characterization of extrasolar terrestrial planets from diurnal photometric variability  

E-Print Network (OSTI)

The detection of massive planets orbiting nearby stars has become almost routine, but current techniques are as yet unable to detect terrestrial planets with masses comparable to the Earth's. Future space-based observatories to detect Earth-like planets are being planned. Terrestrial planets orbiting in the habitable zones of stars-where planetary surface conditions are compatible with the presence of liquid water-are of enormous interest because they might have global environments similar to Earth's and even harbor life. The light scattered by such a planet will vary in intensity and colour as the planet rotates; the resulting light curve will contain information about the planet's properties. Here we report a model that predicts features that should be discernible in light curves obtained by low-precision photometry. For extrasolar planets similar to Earth we expect daily flux variations up to hundreds of percent, depending sensitively on ice and cloud cover. Qualitative changes in surface or climate generate significant changes in the predicted light curves. This work suggests that the meteorological variability and the rotation period of an Earth-like planet could be derived from photometric observations. Other properties such as the composition of the surface (e.g., ocean versus land fraction), climate indicators (for example ice and cloud cover), and perhaps even signatures of Earth-like plant life could be constrained or possibly, with further study, even uniquely determined.

E. B. Ford; S. Seager; E. L. Turner

2001-09-04T23:59:59.000Z

213

Imaging the Earth's Interior: the Angular Distribution of Terrestrial Neutrinos  

E-Print Network (OSTI)

Decays of radionuclides throughout the Earth's interior produce geothermal heat, but also are a source of antineutrinos. The (angle-integrated) geoneutrino flux places an integral constraint on the terrestrial radionuclide distribution. In this paper, we calculate the angular distribution of geoneutrinos, which opens a window on the differential radionuclide distribution. We develop the general formalism for the neutrino angular distribution, and we present the inverse transformation which recovers the terrestrial radioisotope distribution given a measurement of the neutrino angular distribution. Thus, geoneutrinos not only allow a means to image the Earth's interior, but offering a direct measure of the radioactive Earth, both (1) revealing the Earth's inner structure as probed by radionuclides, and (2) allowing for a complete determination of the radioactive heat generation as a function of radius. We present the geoneutrino angular distribution for the favored Earth model which has been used to calculate geoneutrino flux. In this model the neutrino generation is dominated by decays in the Earth's mantle and crust; this leads to a very ``peripheral'' angular distribution, in which 2/3 of the neutrinos come from angles > 60 degrees away from the downward vertical. We note the possibility of that the Earth's core contains potassium; different geophysical predictions lead to strongly varying, and hence distinguishable, central intensities (< 30 degrees from the downward vertical). Other uncertainties in the models, and prospects for observation of the geoneutrino angular distribution, are briefly discussed. We conclude by urging the development and construction of antineutrino experiments with angular sensitivity. (Abstract abridged.)

Brian D. Fields; Kathrin A. Hochmuth

2004-05-31T23:59:59.000Z

214

Argonne TDC: Intellectual Property Links  

Intellectual Property Links. Patent Law ? U.S. Patent and Trademark Office: Includes information on the patent and trademark process as well as a ...

215

EIA Energy Kids - Related Links  

U.S. Energy Information Administration (EIA)

Find free or low-cost resources with our database of Energy Education Resources: K-12th grade. Plus, find links to other helpful energy sites.

216

Energy Education and Workforce Development: Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links to someone by E-mail Share Energy Education and Workforce Development: Related Links on Facebook Tweet about Energy Education and Workforce Development: Related Links...

217

Help:Links | Open Energy Information  

Open Energy Info (EERE)

Links Links Jump to: navigation, search There are four sorts of links in MediaWiki: internal links to other pages in the wiki external links to other websites interwiki links to other websites registered to the wiki in advance Interlanguage links to other websites registered as other language versions of the wiki Contents 1 Internal links 2 External links 2.1 How to avoid auto-links 3 Interwiki links 3.1 Interlanguage links 4 See also Internal links To add an internal link, enclose the name of the page you want to link to in double square brackets. When you save the page, you'll see the new link pointing to your page. If the page exists already it is displayed in blue, if it does not, in red. Selflinks to the current page are not transformed in URLs but displayed in bold. (If you really want to link to the current

218

Experiences in managing energy with ecosystem  

E-Print Network (OSTI)

Energy consumption is a major systems-design challenge. ECOSystem incorporates the “currentcy model, ” which lets the operating system manage energy as a first-class resource. It can also express complex energy-related goals and behaviors, leading to more effective, unified management policies. Mobile devices are becoming increasingly popular, from laptops, PDAs, and cell phones to emerging platforms such as wireless sensor networks. Available battery energy has become a critical mobilesystem resource. A mobile device’s usefulness is often limited not by its hardware’s raw speed but by its battery’s energy. Ideally, designers should address the energy problem at all system levels: hardware, operating system, and application. At the hardware level, low-power circuit design can reduce energy consumption. In addition, hardware devices can provide device-specific power management features that you can exploit with power-management policies at the system’s higher levels. At the OS level, we can observe the applications’ and devices ’ combined resource demands. Existing OSlevel energy management tends to focus on individual devices. For example, scheduling for processors with dynamic voltage scaling (DVS) allocates CPU time to tasks and manipulates the CPU power states. 1–4 Similarly, disk and network policies concentrate only on the request patterns to their specific devices and on managing their available

Carla S. Ellis; R. Lebeck

2005-01-01T23:59:59.000Z

219

Cobordisms to weakly splittable links  

E-Print Network (OSTI)

We show that if a link L with non-zero Alexander polynomial admits a locally flat cobordism to a `weakly m-split link', then the cobordism must have genus at least (m-1)/2. This generalises a recent result of J. Pardon.

Friedl, Stefan

2011-01-01T23:59:59.000Z

220

How deep are your links?  

Science Conference Proceedings (OSTI)

"If you operate a Web site and wish to link to this Site, you may link only to the home page of the Site and not to any other page or sub-domain of us…."-- The Dallas Morning News,www.dallasnews.com/registration/termsofservice.html

Aaron Weiss

2002-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Educational Global Climate Change Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Educational Global Climate Change Links Educational Global Climate Change Links Evidence of the importance of global climate change to the future generation is reflected in the increasing number of queries CDIAC receives from students and educators, from a range of educational levels. We have compiled a listing of some sites that we hope will be of interest and of use to those looking for information, fun, ideas, and ways that they can make a difference. These links were chosen because we have found them useful in responding to those with inquiring minds. These links will take the user outside of CDIAC, and are by no means comprehensive. We are not responsible for the content or intent of these outside links. Tools you can use! NOAA's Global Climate Dashboard - The Global Climate Dashboard is

222

ARM - Field Campaign - Support for Next-Generation Ecosystem...  

NLE Websites -- All DOE Office Websites (Extended Search)

you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Support for Next-Generation Ecosystem Experiment (NGEE Arctic) 2012.04.01 - 2013.09.30 Lead Scientist :...

223

Final Strategic Plan Released by Gulf Coast Ecosystem Restoration Taskforce  

Energy.gov (U.S. Department of Energy (DOE))

Today (December 5) the Gulf Coast Ecosystem Restoration Task Force released its final strategy for long-term restoration in the Gulf, a path forward based on input from states, tribes, federal...

224

2010 U.S. Smart Grid Vendor Ecosystem  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2010 U.S. Smart Grid Vendor Ecosystem 2010 U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape The Cleantech Group www.cleantech.com Principal Authors Greg Neichin David Cheng Contributing Authors Sheeraz Haji Josh Gould Debjit Mukerji David Hague 2 Table of Contents Page I. Introduction .............................................................................. 3 In-Depth Market Analysis II. Advanced Metering .......................................................... 19 III. Demand Response ............................................................ 39 IV. Distribution Grid Management ...................................... 57

225

The interspecific biomassdensity relationship for terrestrial plants: where do clonal red seaweeds  

E-Print Network (OSTI)

The interspecific biomass±density relationship for terrestrial plants: where do clonal red seaweeds (or ramet, for clonal plants) density is negatively related to stand biomass. Stand biomass and ramet biomass was higher than average values expected from the terrestrial interspecific biomass

Scrosati, Ricardo

226

Compton scattering effects on the duration of terrestrial gamma-ray flashes  

E-Print Network (OSTI)

; published 18 January 2012. [1] Terrestrial gamma-ray flashes (TGFs) are gamma-ray bursts detected from space) recently discovered by the gamma-ray burst monitor (GBM) aboard the Fermi Gamma-Ray Space Telescope. Introduction [2] Terrestrial gamma-ray flashes (TGFs) are bursts of high-energy photons originating from

Pasko, Victor

227

Dr. Yeqiao (Y.Q.) Wang Professor in Terrestrial Remote Sensing  

E-Print Network (OSTI)

1 Dr. Yeqiao (Y.Q.) Wang Professor in Terrestrial Remote Sensing Department of Natural Resources://www.ltrs.uri.edu ________________________________________________________________________ Research Interests My research interests and teaching responsibilities are in terrestrial remote sensing. M.Sc., Natural Resources Management & Engineering: Univ. of Connecticut, 1992. M.Sc., Remote Sensing

Wang, Y.Q. "Yeqiao"

228

Terrestrial lidar and hyperspectral data fusion products for geological outcrop analysis  

Science Conference Proceedings (OSTI)

Close-range hyperspectral imaging is an emerging technique for remotely mapping mineral content and distributions in inaccessible geological outcrop surfaces, allowing subtle chemical variations to be identified with high resolution and accuracy. Terrestrial ... Keywords: Ground-based, Integration, Surface modelling, Terrestrial laser scanning, Virtual outcrop models, Visualisation

Simon J. Buckley, Tobias H. Kurz, John A. Howell, Danilo Schneider

2013-04-01T23:59:59.000Z

229

Announcements Science Policy Geology Technology Terrestrial/Ocean  

NLE Websites -- All DOE Office Websites (Extended Search)

what'S inSide? what'S inSide? Sequestration in the News Announcements Science Policy Geology Technology Terrestrial/Ocean Trading Recent Publications Events Subscription Information hiGhliGhtS Fossil Energy Techline, "Climate Technology: DOE Readies First Big U.S. Projects in CO 2 Capture and Storage. The US Department of Energy (DOE) is currently reviewing Phase III proposals for large-scale geologic sequestration projects in support of the Regional Carbon Sequestration Partnership Program. The program, which was formed in 2003 to research the best approaches to capture and permanently store the greenhouse gas, carbon dioxide (CO 2 ), will enter its next phase in October with announcements of Phase III deployment projects. The new stage of the Regional Partnerships' work will follow as a logical extension of work

230

Externally Occulted Terrestrial Planet Finder Coronagraph: Simulations and Sensitivities  

E-Print Network (OSTI)

A multitude of coronagraphic techniques for the space-based direct detection and characterization of exo-solar terrestrial planets are actively being pursued by the astronomical community. Typical coronagraphs have internal shaped focal plane and/or pupil plane occulting masks which block and/or diffract starlight thereby increasing the planet's contrast with respect to its parent star. Past studies have shown that any internal technique is limited by the ability to sense and control amplitude, phase (wavefront) and polarization to exquisite levels - necessitating stressing optical requirements. An alternative and promising technique is to place a starshade, i.e. external occulter, at some distance in front of the telescope. This starshade suppresses most of the starlight before entering the telescope - relaxing optical requirements to that of a more conventional telescope. While an old technique it has been recently been advanced by the recognition that circularly symmetric graded apodizers can be well appro...

Lyon, Richard G; Lo, Amy; Cash, Webster; Starkman, Glenn D; Vanderbei, Robert J; Kasdin, N Jeremy; Copi, Craig J

2007-01-01T23:59:59.000Z

231

Fermi GBM Observations of Terrestrial Gamma-ray Flashes  

Science Conference Proceedings (OSTI)

Terrestrial Gamma-ray Flashes are short pulses of energetic radiation associated with thunderstorms and lightning. While the Gamma-ray Burst Monitor (GBM) on Fermi was designed to observe gamma-ray bursts, its large BGO detectors are excellent for observing TGFs. Using GBM, TGF pulses are seen to either be symmetrical or have faster rise time than fall times. Some TGFs are resolved into double, partially overlapping pulses. Using ground-based radio observations of lightning from the World Wide Lightning Location Network (WWLLN), TGFs and their associated lightning are found to be simultaneous to {approx_equal}40 {mu} s. The lightning locations are typically within 300 km of the sub-spacecraft point.

Briggs, Michael S. [CSPAR, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805 (United States)

2011-09-21T23:59:59.000Z

232

System, method, and apparatus for remote measurement of terrestrial biomass  

DOE Patents (OSTI)

A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combination with a LiDAR system, overflying the area of interest while directing energy toward the area of interest, using the VHF radar system to collect backscatter data from the trees as a function of incidence angle and frequency, and determining a magnitude of the biomass from the backscatter data and data from the laser radar system for each radar resolution cell. A biomass map is generated showing the magnitude of the biomass of the vegetative elements as a function of location on the map by using each resolution cell as a unique location thereon. In certain preferred embodiments, a single frequency is used with a linear array antenna.

Johnson, Patrick W (Jefferson, MD)

2011-04-12T23:59:59.000Z

233

Discussion items for developing an AI Fishery Ecosystem Plan  

E-Print Network (OSTI)

The SSC has recommended revising the purpose and need statement to explicitly emphasize that the FEP should consider aggregate, cumulative impacts on the Aleutian Islands ecosystem. One of the ways that a FEP might provide added value to the Council, in addition to the many ecosystem-based analyses that are already produced for each Council action, is to focus on the Aleutian Islands and look cumulatively at impacts from all fisheries and non-fishing impacts. The cumulative impact analysis in other documents, such as the Groundfish PSEIS, does look at cumulative fishing and external effects, but from the perspective of the groundfish fisheries rather than the Aleutian Islands ecosystem. A FEP for the AI would provide an opportunity for fishery management to coordinate actions across fisheries. A revision to the purpose statement to reflect such a change might take the form of the bolded text below: The Council recognizes that an explicit Ecosystem Approach to Fisheries (EAF) is a desirable process for future management of the marine fishery resources in the Alaskan EEZ and therefore is a concept that it wishes to pursue and further implement. A primary component of an EAF is the development of ecosystem-based fishery planning documents, and the Council intends to move forward with such development on a pilot basis. The Council recognizes that the Aleutian Islands ecosystem is a unique environment that supports

Need Statement

2005-01-01T23:59:59.000Z

234

Urban Ecosystems, 7: 175178, 2004 c 2004 Kluwer Academic Publishers. Manufactured in The Netherlands.  

E-Print Network (OSTI)

, and ecosystem function in the urban fringe. Nassauer, Allan, Johengan, Kosek, and Infante examine how

Wu, Jianguo "Jingle"

235

Linking Resources and Structures: Increasing the Effectiveness...  

NLE Websites -- All DOE Office Websites (Extended Search)

Linking Resources and Structures: Increasing the Effectiveness of Energy Efficient Government Procurement Programs Title Linking Resources and Structures: Increasing the...

236

Related Links | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Related Links Related Links Related Links November 1, 2013 - 11:40am Addthis Need additional help or more information? DOE's CHP Technical Assistance Partnerships (CHP TAPs) provide local, individualized solutions to customers on specific combined heat and power (CHP) projects. Partners of DOE's CHP Program include federal and state agencies, non-governmental organizations, international entities, private clean energy companies, technology developers, and commercial builders and developers. Partners American Council for an Energy-Efficient Economy (ACEEE) Argonne National Laboratory (ANL) CHP Association International District Energy Association (IDEA) International Energy Agency (IEA) National Energy Technology Laboratory (NETL) New York State Energy Research and Development Authority (NYSERDA)

237

NREL: Energy Analysis - Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links Related Links Here you'll find links to other programs, organizations, and information resources concerning other analysis capabilities, energy-modeling, and technology expertise related to renewable energy. International Applications NREL's International Program in its effort to promote the use of renewable energy as a tool for sustainable development, applies world-class expertise in technology development and deployment, economic analysis, resource assessment, project design and implementation, and policy formulation. Assisting State and Local Governments Using renewable energy and being energy efficient is smart. Not only does it protect the environment, it benefits the economy. Many mayors, governors, city/county commissioners, state legislators, state energy

238

Plug-in Hybrid Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Plug-in Hybrid Links Plug-in Hybrid Links Exit Fueleconomy.gov The links below are to pages that are not part of the fueleconomy.gov Web site. We offer these external links for your convenience in accessing additional information that may be useful or interesting to you. Plug-in Hybrid Vehicles and Manufacturers Chevrolet Volt Official site for the Chevrolet Volt Cadillac ELR Official site for the Cadillac ELR (arriving early 2014) Ford C-MAX Energi Plug-in Hybrid Official site for the C-MAX Energi Plug-in Hybrid Ford Fusion Energi Plug-in Hybrid Official site for the Fusion Energi Plug-in Hybrid Honda Accord Plug-in Official site for the Honda Accord Plug-in Hybrid Toyota Prius Plug-in Official site for the Toyota Prius Plug-in Hybrid Plug-in-Related Information and Tools

239

Linked Deposit Loan Program (Kentucky)  

Energy.gov (U.S. Department of Energy (DOE))

The Linked Deposit Program provides loan financing for small businesses of up to $100,000 for up to 7 years. The State Investment Commission invests funds from the state's Abandoned Property Cash...

240

Analytical Chemistry Databases and Links  

Science Conference Proceedings (OSTI)

Analytical chemistry websites, humor, Material Safety Data Sheets,Patent Information, and references. Analytical Chemistry Databases and Links Analytical Chemistry acid analysis Analytical Chemistry aocs applicants april articles atomic)FluorometryDiffer

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241

Ecosystem Solar Electric Corp aka Solar MW Energy Inc | Open Energy  

Open Energy Info (EERE)

Solar Electric Corp aka Solar MW Energy Inc Solar Electric Corp aka Solar MW Energy Inc Jump to: navigation, search Name Ecosystem Solar Electric Corp, aka Solar MW Energy Inc Place Ontario, California Zip 91761 Product Plans to develop STEG plants in the Mojave desert. Coordinates 34.06457°, -117.647809° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.06457,"lon":-117.647809,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

Pages that link to "Principle Power Inc" | Open Energy Information  

Open Energy Info (EERE)

Northwest Area ( links) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) Category:Energy...

243

Pages that link to "3TIER" | Open Energy Information  

Open Energy Info (EERE)

Northwest Area ( links) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) Map of Clean...

244

Pages that link to "Ridgeline Energy LLC" | Open Energy Information  

Open Energy Info (EERE)

Northwest Area ( links) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) Category:Energy...

245

Pages that link to "Apps for Energy Challenge Participant" |...  

Open Energy Info (EERE)

Energy Forecaster ( links) Energy Monitoring Made Simple (EMMS) ( links) Energy Usage Analytics ( links) Exploring Background Energy Usage ( links)...

246

Pages that link to "Property:Language" | Open Energy Information  

Open Energy Info (EERE)

7.0 ( links) Electricity Market Complex Adaptive System ( links) Retrofit Energy Savings Estimation Model ( links) RETFinance ( links) Benchmarking...

247

Links  

Energy.gov (U.S. Department of Energy (DOE))

More Legal Research ResourcesEnergy Law NetLegal Citation Style GuideNuclear Regulatory LegislationOpen CRSPublic Library of LawTreatiesU.S. Code Classification TablesU.S. Congressional Documents...

248

Links  

Science Conference Proceedings (OSTI)

Aug 23, 2012 ... Materials for Nuclear Power ... at my first Sandia job while working on weapons actually gave me the opportunity to systematize a broad range ...

249

Links  

Science Conference Proceedings (OSTI)

... SPIE 1663, 443–446, 1992. ... Wrobel, JJ, Ramp profiles for optical disc incubation , SPIE vol. 2338, optical data storage, p. 191-202, 1994. ...

250

Kootenai River Floodplain Ecosystem Operational Loss Assessment, Protection, Mitigation and Rehabilitation, 2007-2008 Annual Report.  

DOE Green Energy (OSTI)

The overarching goals of the 'Kootenai River Floodplain Ecosystem Operational Loss Assessment, Protection, Mitigation and Rehabilitation' Project (BPA Project No.2002-011-00) are to: (1) assess abiotic and biotic factors (i.e., geomorphologic, hydrological, aquatic and riparian/floodplain communities) in determining a definitive composition of ecological integrity, (2) develop strategies to assess and mitigate losses of ecosystem functions, and (3) produce a regional operational loss assessment framework. To produce a scientifically defensible, repeatable, and complete assessment tool, KTOI assembled a team of top scientists in the fields of hydrology, hydraulics, ornithology, entomology, statistics, and river ecology, among other expertise. This advisory team is known as the Research Design and Review Team (RDRT). The RDRT scientists drive the review, selection, and adaptive management of the research designs to evaluate the ecologic functions lost due to the operation of federal hydropower facilities. The unique nature of this project (scientific team, newest/best science, adaptive management, assessment of ecological functions, etc.) has been to work in a dynamic RDRT process. In addition to being multidisciplinary, this model KTOI project provides a stark contrast to the sometimes inflexible process (review, re-review, budgets, etc.) of the Columbia River Basin Fish and Wildlife Program. The project RDRT is assembled annually, with subgroups meeting as needed throughout the year to address project issues, analyses, review, and interpretation. Activities of RDRT coordinated and directed the selection of research and assessment methodologies appropriate for the Kootenai River Watershed and potential for regional application in the Columbia River Basin. The entire RDRT continues to meet annually to update and discuss project progress. RDRT Subcontractors work in smaller groups throughout the year to meet project objectives. Determining the extent to which ecological systems are experiencing anthropogenic disturbance and change in structure and function is critical for long term conservation of biotic diversity in the face of changing landscapes and land use. KTOI and the RDRT propose a concept based on incorporating hydrologic, aquatic, and terrestrial components into an operations-based assessment framework to assess ecological losses as shown in Figure E-1.

Merz, Norm [Kootenai Tribe of Idaho

2009-02-18T23:59:59.000Z

251

Alternative Fuels Data Center: Electricity Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electricity Electricity Printable Version Share this resource Send a link to Alternative Fuels Data Center: Electricity Related Links to someone by E-mail Share Alternative Fuels Data Center: Electricity Related Links on Facebook Tweet about Alternative Fuels Data Center: Electricity Related Links on Twitter Bookmark Alternative Fuels Data Center: Electricity Related Links on Google Bookmark Alternative Fuels Data Center: Electricity Related Links on Delicious Rank Alternative Fuels Data Center: Electricity Related Links on Digg Find More places to share Alternative Fuels Data Center: Electricity Related Links on AddThis.com... More in this section... Electricity Basics Production & Distribution Research & Development Related Links Benefits & Considerations Stations

252

Alternative Fuels Data Center: Biodiesel Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Biodiesel Biodiesel Printable Version Share this resource Send a link to Alternative Fuels Data Center: Biodiesel Related Links to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Related Links on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Related Links on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Google Bookmark Alternative Fuels Data Center: Biodiesel Related Links on Delicious Rank Alternative Fuels Data Center: Biodiesel Related Links on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Related Links on AddThis.com... More in this section... Biodiesel Basics Blends Production & Distribution Specifications Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

253

Alternative Fuels Data Center: Hydrogen Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hydrogen Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Related Links to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Related Links on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Related Links on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Related Links on Google Bookmark Alternative Fuels Data Center: Hydrogen Related Links on Delicious Rank Alternative Fuels Data Center: Hydrogen Related Links on Digg Find More places to share Alternative Fuels Data Center: Hydrogen Related Links on AddThis.com... More in this section... Hydrogen Basics Production & Distribution Research & Development Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

254

Alternative Fuels Data Center: Ethanol Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ethanol Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Ethanol Related Links to someone by E-mail Share Alternative Fuels Data Center: Ethanol Related Links on Facebook Tweet about Alternative Fuels Data Center: Ethanol Related Links on Twitter Bookmark Alternative Fuels Data Center: Ethanol Related Links on Google Bookmark Alternative Fuels Data Center: Ethanol Related Links on Delicious Rank Alternative Fuels Data Center: Ethanol Related Links on Digg Find More places to share Alternative Fuels Data Center: Ethanol Related Links on AddThis.com... More in this section... Ethanol Basics Blends Specifications Production & Distribution Feedstocks Related Links Benefits & Considerations Stations Vehicles Laws & Incentives

255

Definition, Capabilities, and Components of a Terrestrial Carbon Monitoring System  

Science Conference Proceedings (OSTI)

Research efforts for effectively and consistently monitoring terrestrial carbon are increasing in number. As such, there is a need to define carbon monitoring and how it relates to carbon cycle science and carbon management. There is also a need to identify intended capabilities of a carbon monitoring system and what system components are needed to develop the capabilities. This paper is intended to promote discussion on what capabilities are needed in a carbon monitoring system based on requirements for different areas of carbon-related research and, ultimately, for carbon management. While many methods exist to quantify different components of the carbon cycle, research is needed on how these methods can be coupled or integrated to obtain carbon stock and flux estimates regularly and at a resolution that enables attribution of carbon dynamics to respective sources. As society faces sustainability and climate change conerns, carbon management activities implemented to reduce carbon emissions or increase carbon stocks will become increasingly important. Carbon management requires moderate to high resolution monitoring. Therefore, if monitoring is intended to help inform management decisions, management priorities should be considered prior to development of a monitoring system.

West, Tristram O.; Brown, Molly E.; Duran, Riley M.; Ogle, Stephen; Moss, Richard H.

2013-08-08T23:59:59.000Z

256

Externally Occulted Terrestrial Planet Finder Coronagraph: Simulations and Sensitivities  

E-Print Network (OSTI)

A multitude of coronagraphic techniques for the space-based direct detection and characterization of exo-solar terrestrial planets are actively being pursued by the astronomical community. Typical coronagraphs have internal shaped focal plane and/or pupil plane occulting masks which block and/or diffract starlight thereby increasing the planet's contrast with respect to its parent star. Past studies have shown that any internal technique is limited by the ability to sense and control amplitude, phase (wavefront) and polarization to exquisite levels - necessitating stressing optical requirements. An alternative and promising technique is to place a starshade, i.e. external occulter, at some distance in front of the telescope. This starshade suppresses most of the starlight before entering the telescope - relaxing optical requirements to that of a more conventional telescope. While an old technique it has been recently been advanced by the recognition that circularly symmetric graded apodizers can be well approximated by shaped binary occulting masks. Indeed optimal shapes have been designed that can achieve smaller inner working angles than conventional coronagraphs and yet have high effective throughput allowing smaller aperture telescopes to achieve the same coronagraphic resolution and similar sensitivity as larger ones. Herein we report on our ongoing modeling, simulation and optimization of external occulters and show sensitivity results with respect to number and shape errors of petals, spectral passband, accuracy of Fresnel propagation, and show results for both filled and segmented aperture telescopes and discuss acquisition and sensing of the occulter's location relative to the telescope.

Richard G. Lyon; Sally Heap; Amy Lo; Webster Cash; Glenn D. Starkman; Robert J. Vanderbei; N. Jeremy Kasdin; Craig J. Copi

2007-12-07T23:59:59.000Z

257

Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Home > Field Offices > Welcome to the NNSA Production Office > Links Home > Field Offices > Welcome to the NNSA Production Office > Links Links NNSA HQ National Nuclear Security Administration Advanced Simulation & Computing NNSA Graduate Program NNSA Small Business Program Office of Defense Nuclear Nonproliferation Field Offices NNSA Albuquerque Complex Kansas City Field Office Livermore Field Office Los Alamos Field Office Naval Reactors Idaho Branch Office Nevada Field Office Sandia Field Office DOE Oak Ridge Sites Oak Ridge Office Oak Ridge National Laboratory UCOR Oak Ridge Institute for Science and Education Oak Ridge Site Specific Advisory Board American Museum of Science and Energy City of Oak Ridge Plants Laboratories Bechtel Nevada Bettis Laboratory Kansas City Plant Knolls Atomic Power Laboratory Lawrence Livermore National Laboratory

258

EIA - Related Links for Transportation  

U.S. Energy Information Administration (EIA) Indexed Site

Transportation Related Links Transportation Related Links Transportation Related Links government reports, data, and web sites (sorted alphabetically by primary agency) Date Last Updated/Reviewed: December 2006 Next Update/Review: April 2007 Federal and International Agencies and Institutes International Energy Agency (IEA) Dealing with Climate Change The International Energy Agency's »Dealing with Climate Change« database of policies and measures now features 2005 revisions and developments. The database has expanded to include more than 1400 records of the climate policy process in the IEA's 26 Member Countries since 1999. Member country governments have reviewed and endorsed the policies listed, reinforcing the informative value and authority of the database. The database is freely accessible online.

259

Related Links | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Related Links Related Links Related Links Private, public, and nonprofit organizations around the country offer a wide range of courses and other services to help you either improve your current skills or learn new ones. The sites featured here can help you find courses of specific interest as well as other information about training requirements for certain energy jobs. DOE Related Advanced Manufacturing Office: Training Find training sessions in your area and learn how to save energy in your manufacturing plant or commercial building. American Museum of Science & Energy Learn more about the American Museum of Science & Energy (AMSE), a DOE-sponsored museum in Oak Ridge, TN, that provides cultural, educational, and scientific programs and exhibits, as well as summer camps for kids.

260

Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs September 14, 2011 - 4:22pm Addthis Rich Earley, CEO of Clean Urban Energy presents at Clean Energy Trust's Clean Energy Challenge in March 2011 | Courtesy of Clean Energy Trust Rich Earley, CEO of Clean Urban Energy presents at Clean Energy Trust's Clean Energy Challenge in March 2011 | Courtesy of Clean Energy Trust Sarah Jane Maxted Special Assistant, Office of Energy Efficiency & Renewable Energy What does this project do? Smart grid start-up company Clean Urban Energy secured $75,000 for its energy storage and smart grid performance optimization technology. Their system harnesses a building's inherent thermal mass to drive

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Electric Field Perturbations in Terrestrial Clouds and Solar Flare Events  

Science Conference Proceedings (OSTI)

Atmospheric electrical data taken on 3744 m high Niwot Ridge, Colorado, during 1966, 1967 and 1968 are reexamined for evidence of a solar-weather link between the earth’s electric field and solar flare events. The onset of the response of the ...

Doyne Sartor

1980-04-01T23:59:59.000Z

262

Pages that link to "Glossary" | Open Energy Information  

Open Energy Info (EERE)

links) Property:Term ( links) Definition:Biofuels ( links) Definition:Algae fuel ( links) Definition:Algae ( links) Definition:Biodiesel (...

263

Ecosystem and Wildlife Implications of Brush: Management System Designed to Improve Water Runoff and Percolation  

E-Print Network (OSTI)

With the settlement of Texas and establishment of ranchers to produce cattle, there was an effort to maximize beef production. This caused serious overgrazing. In addition, there was a reduced incidence of fires across the landscape to clear out brush. These factors led to deterioration of the grazing lands and provided an opportunity for invasive intrusion by brush and other species onto the land and riparian zones. There has been a large-scale conversion from grasslands and savannahs to wildlands over the last 150 years (Scholes and Archer, 1997). The overall impacts are significantly impaired uplands and reduced percolation and surface flow of water from rainfall which caused changes and loss in basic aquatic and terrestrial habitat. The State of Texas adopted a program to study and implement brush management systems across the state to improve the water availability in streams, rivers, reservoirs and aquifers, as well as to improve the rangelands. The feasibility studies have shown great promise for improving ranchland and improving the water situation. However, there is less known about the aquatic and wildlife species response implications of brush management. Certainly, there are opportunities for improving the viability of an ecosystem through brush management strategies and continuing management practices. The purpose of this study was to evaluate the changes in hydrology and biological diversity associated with brush management in two watersheds where significant data was already available. This study focused on assessing the aquatic and terrestrial species implications related to specified brush management strategies over time. This involved an integrated analysis including modeling of the landscape, assessing biological diversity and developing economic implications for the two watersheds (Twin Buttes and Edwards regions). Thus, this study is comprised of three parts: modeling of brush management strategies temporally, assessing biological diversity (aquatic and terrestrial) and estimating economic implications. This represents a complex analysis involving variable units and multiple disciplines. Previous feasibility studies of brush removal have been targeted at maximizing water runoff. This analysis is an extension that is designed to examine the implications of brush management under a more restrictive set of brush removal criteria that were chosen based upon wildlife considerations. To achieve the integration of hydrologic modeling, range ecology, and economic implications, there were three team meetings bringing together all components to review status and set priorities for the remainder of the work. In addition, scientists in the three basic groups of specialization interacted daily along with representatives of the Corps of Engineers to assure that each decision was reflected in other parts of the analyses. The major addition of this analysis to brush management feasibility studies being conducted as part of the Texas brush management plan is the consideration of wildlife and aquatic biota and assessing changes in biological diversity likely to result from alternative brush management scenarios.

Arrington, D. Albrey; Conner, Richard; Dugas, William; Hejl, Sallie; Magness, Dawn; Muttiah, Ranjan; Olenick, Keith; Rosenthal, Wes; Srinivasan, Raghavan; Winemiller, Kirk O.; Zinn, Michele; Wilkins, Neal; Amonett, Carl; Bednarz, Steve; Dybala, Tim; Griffith, Rebecca; Jarboe, Hank

2002-11-01T23:59:59.000Z

264

EEO Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Jobs Working at NNSA Blog EEO Links Home > About Us > Our Operations > Management and Budget > Office of Civil Rights > EEO Links EEO Links DOE Office of Civil Rights (weblink)...

265

Prediction accuracy of link-quality estimators  

Science Conference Proceedings (OSTI)

The accuracy of link-quality estimators (LQE) is missioncritical in many application scenarios in wireless sensor networks (WSN), since the link-quality metric is used for routing decisions or neighborhood formation. Link-quality estimation must offer ...

Christian Renner; Sebastian Ernst; Christoph Weyer; Volker Turau

2011-02-01T23:59:59.000Z

266

Estimating the Seasonal Carbon Source-Sink Geography of a Natural, Steady-State Terrestrial Biosphere  

Science Conference Proceedings (OSTI)

The seasonal dynamics of biospheric-carbon sources and sinks represents a needed input to global atmospheric CO2 studies and models. For the terrestrial biosphere, initial monthly estimates of overall metabolism and net biosphere-atmosphere ...

Elgene O. Box

1988-10-01T23:59:59.000Z

267

Inferring Changes in Terrestrial Water Storage Using ERA-40 Reanalysis Data: The Mississippi River Basin  

Science Conference Proceedings (OSTI)

Terrestrial water storage is an essential part of the hydrological cycle, encompassing crucial elements of the climate system, such as soil moisture, groundwater, snow, and land ice. On a regional scale, it is however not a readily measured ...

Sonia I. Seneviratne; Pedro Viterbo; Daniel Lüthi; Christoph Schär

2004-06-01T23:59:59.000Z

268

Remote Sensing of Terrestrial and Submerged Aquatic Vegetation in Fire Island National  

E-Print Network (OSTI)

Remote Sensing of Terrestrial and Submerged Aquatic Vegetation in Fire Island National Seashore Satellite Remote Sensing Data in FIIS Vegetation Mapping The vegetation communities and spatial patterns necessary. #12;Hyperspectral Remote Sensing in Seagrass Habitat Mapping Recent development of hyperspectral

Wang, Y.Q. "Yeqiao"

269

Atmospheric photochemistry, surface features, and potential biosignature gases of terrestrial exoplanets  

E-Print Network (OSTI)

The endeavor to characterize terrestrial exoplanets warrants the study of chemistry in their atmospheres. Here I present a comprehensive one-dimensional photochemistry-thermochemistry model developed from the ground up for ...

Hu, Renyu, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

270

Studies of plume condensation contamination upon surfaces of the Terrestrial Planet Finder spacecraft  

E-Print Network (OSTI)

There are two competing concepts for the Terrestrial Planet Finder (TPF) mission, one which involves a single spacecraft, and another comprised of a five craft formation. In addition, there are several propulsion options ...

Pigeon, Timothy David

2005-01-01T23:59:59.000Z

271

Grid-BGC: a grid-enabled terrestrial carbon cycle modeling system  

Science Conference Proceedings (OSTI)

Grid-BGC is a Grid-enabled terrestrial biogeochemical cycle simulator collaboratively developed by the National Center for Atmospheric Research (NCAR) and the University of Colorado (CU) with funding from NASA. The primary objective of the project is ...

Jason Cope; Craig Hartsough; Peter Thornton; Henry Tufo; Nathan Wilhelmi; Matthew Woitaszek

2005-08-01T23:59:59.000Z

272

BizLink Technology | Open Energy Information  

Open Energy Info (EERE)

BizLink Technology Jump to: navigation, search Name BizLink Technology Place Fremont, California Zip 94538 Sector Solar Product California-based manufacturer of solar modules,...

273

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Livermore Field Office > Related Links Related Links NNSA FOIA DOENNSA Telephone Directory U.S. Department of Energy Lawrence Livermore National Laboratory Printer-friendly...

274

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

& Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > Related Links Related Links NNSA Lab Directed Research and Development...

275

Linked Energy Data | OpenEI  

Open Energy Info (EERE)

Help Here are some outside resources to learn more about Linked Data technologies: Linked Data Guides and Tutorials SPARQL Tutorial About us Disclaimers Energy blogs Developer...

276

Alternative Fuels Data Center: Propane Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Propane Propane Printable Version Share this resource Send a link to Alternative Fuels Data Center: Propane Related Links to someone by E-mail Share Alternative Fuels Data Center: Propane Related Links on Facebook Tweet about Alternative Fuels Data Center: Propane Related Links on Twitter Bookmark Alternative Fuels Data Center: Propane Related Links on Google Bookmark Alternative Fuels Data Center: Propane Related Links on Delicious Rank Alternative Fuels Data Center: Propane Related Links on Digg Find More places to share Alternative Fuels Data Center: Propane Related Links on AddThis.com... More in this section... Propane Basics Production & Distribution Related Links Benefits & Considerations Stations Vehicles Laws & Incentives Propane Related Links This list includes links related to propane. The Alternative Fuels Data

277

Sustainable ecosystems: enabled by supply and demand management  

Science Conference Proceedings (OSTI)

Continued population growth, coupled with increased per capita consumption of resources, poses a challenge to the quality of life of current and future generations. We cannot expect to meet the future needs of society simply by extending existing infrastructures. ... Keywords: IT, available energy, data center, ecosystems, energy, exergy, sustainability, sustainable

Chandrakant D. Patel

2011-01-01T23:59:59.000Z

278

Large IT projects as interventions in digital ecosystems  

Science Conference Proceedings (OSTI)

Large IT projects, such as the US Government's Internal Revenue Service Business Modernization Effort, can take a decade or more and consume billions of dollars. Traditional approaches to the study of such projects emphasize concerns such as monitoring ... Keywords: IRS, case study, ecosystem, large IT projects, longitudinal analyses, secondary data

Sandeep Purao; Kevin Desouza

2010-10-01T23:59:59.000Z

279

Simulation of hydrologic influences on wetland ecosystem succession. Master's thesis  

Science Conference Proceedings (OSTI)

This research focuses on the development of a simulation model to determine the affects of hydrological influences on a wetland ecosystem. The model allows perturbations to the inputs of various wetland data which in turn, influences the successional development of the ecosystem. This research consisted of converting a grassland ecosystem model to one which simulates wetland conditions. The critical factor in determining the success of wetland creation is the hydrology of the system. There are four of the areas of the original model which are affected by the hydrology. The model measures the health or success of the ecosystem through the measurement of the systems gross plant production, the respiration and the net primary production of biomass. Altering the auxiliary variables of water level and the rate of flow through the system explicitly details the affects hydrologic influences on those production rates. Ten case tests depicting exogenous perturbations of the hydrology were run to identify these affects. Although the tests dealt with the fluctuation of water through the system, any one of the auxiliary variables in the model could be changed to reflect site specific data. Productivity, Hazardous material management, Hazardous material pharmacy.

Pompilio, R.A.

1994-09-01T23:59:59.000Z

280

Prescribed Burning in the Kings River Ecosystems Project Area: Lessons  

E-Print Network (OSTI)

Prescribed Burning in the Kings River Ecosystems Project Area: Lessons Learned1 David S. Mc burning was initiated in 1994 in two 32,000-acre watersheds in the Kings River District of the Sierra various effects of these fires. Approximately 11,900 acres of prescription burns were completed by the end

Standiford, Richard B.

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Bimodality in a Monostable Climate–Ecosystem: The Role of Climate Variability and Soil Moisture Memory  

Science Conference Proceedings (OSTI)

The probabilistic modal response of vegetation to stochastic precipitation variability is studied in a conceptual climate–ecosystem model. It is found that vegetation can exhibit bimodality in a monostable climate–ecosystem under strong rainfall ...

Zhengyu Liu

2010-03-01T23:59:59.000Z

282

2010 U.S. Smart Grid Vendor Ecosystem Report on the companies...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape 2010 U.S. Smart Grid Vendor Ecosystem Report on the...

283

Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange  

Science Conference Proceedings (OSTI)

Linear regression was used to relate modes of tropospheric circulation variability to estimates of gross ecosystem production (GEP) and ecosystem respiration (ER) measured at 14 midlatitude North American eddy covariance (EC) towers. The North ...

Robbie A. Hember; Peter M. Lafleur

2008-02-01T23:59:59.000Z

284

Utilising linked open data in applications  

Science Conference Proceedings (OSTI)

Over the past years, the Linked Data principles have successfully been applied, resulting in the Linked Open Data (LOD) cloud with over 200 datasets containing 26 billion statements, connected by 400 million typed links. Publishing into the LOD cloud ... Keywords: applications, consumption, linked data, web of data

Michael Hausenblas

2011-05-01T23:59:59.000Z

285

The case for anomalous link discovery  

Science Conference Proceedings (OSTI)

In this paper, we describe the challenges inherent to the task of link prediction, and we analyze one reason why many link prediction models perform poorly. Specifically, we demonstrate the effects of the extremely large class skew associated ... Keywords: anomalous link discovery, link prediction, relational learning

Matthew J. Rattigan; David Jensen

2005-12-01T23:59:59.000Z

286

Data Linking with Ontology Alignment Zhengjie Fan  

E-Print Network (OSTI)

Data Linking with Ontology Alignment Zhengjie Fan INRIA & LIG 655, avenue de l'Europe, Montbonnot data on the web, so that users can share information semantically. Then, linking isolated data sets to to be compared, so that it enhances the accuracy of the linking process. I propose a data linking method

287

Utilization of Biomass in Mediterranean-Type Ecosystems: A Summary and Synthesis1  

E-Print Network (OSTI)

Utilization of Biomass in Mediterranean-Type Ecosystems: A Summary and Synthesis1 C. Eugene Conrad of Mediterranean- type ecosystems to supply biomass as a supplemen- tal source of energy is a natural result to less than 25° C. Also, wet-season precip- itation approaches 1000 mm. Biomass from such ecosystems

Standiford, Richard B.

288

Seasonal and inter-annual variability in 13C composition of ecosystem carbon fluxes in the U.S. Southern Great Plains  

Science Conference Proceedings (OSTI)

The {delta}{sup 13}C signature of terrestrial carbon fluxes ({delta}{sub bio}) provides an important constraint for inverse models of CO{sub 2} sources and sinks, insight into vegetation physiology, C{sub 3} and C{sub 4} vegetation productivity, and ecosystem carbon residence times. From 2002-2009, we measured atmospheric CO{sub 2} concentration and {delta}{sup 13}C-CO{sub 2} at four heights (2 to 60 m) in the U.S. Southern Great Plains (SGP) and computed {delta}{sub bio} weekly. This region has a fine-scale mix of crops (primarily C{sub 3} winter wheat) and C{sub 4} pasture grasses. {delta}{sub bio} had a large and consistent seasonal cycle of 6-8{per_thousand}. Ensemble monthly mean {delta}{sub bio} ranged from -25.8 {+-} 0.4{per_thousand} ({+-}SE) in March to -20.1 {+-} 0.4{per_thousand} in July. Thus, C{sub 3} vegetation contributed about 80% of ecosystem fluxes in winter-spring and 50% in summer-fall. In contrast, prairie-soil {delta}{sub 13}C values were about -15{per_thousand}, indicating that historically the region was dominated by C{sub 4} vegetation and had more positive {delta}{sub bio} values. Based on a land-surface model, isofluxes ({delta}{sub bio} x NEE) in this region have large seasonal amplitude because {delta}{sub bio} and net ecosystem exchange (NEE) covary. Interannual variability in isoflux was driven by variability in NEE. The large seasonal amplitude in {delta}{sub bio} and isoflux imply that carbon inverse analyses require accurate estimates of land cover and temporally resolved {sup 13}CO{sub 2} and CO{sub 2} fluxes.

Torn, M.S.; Biraud, S.; Still, C.J.; Riley, W.J.; Berry, J.A.

2010-09-22T23:59:59.000Z

289

Pages that link to "Property:ProgramResources" | Open Energy...  

Open Energy Info (EERE)

Wind Energy Resource Assessment (SWERA) ( links) Power Technologies Energy Data Book ( links) Geospatial Toolkit ( links) Long range Energy Alternatives...

290

Pages that link to "United States Department of Energy" | Open...  

Open Energy Info (EERE)

Technology Cost and Performance Data ( links) Power Technologies Energy Data Book ( links) Geospatial Toolkit ( links) US Climate Change Technology Program...

291

Pages that link to "Property:Abstract" | Open Energy Information  

Open Energy Info (EERE)

Wind Energy Resource Assessment (SWERA) ( links) Power Technologies Energy Data Book ( links) Geospatial Toolkit ( links) Long range Energy Alternatives...

292

Pages that link to "Concentrating solar power" | Open Energy...  

Open Energy Info (EERE)

links) Participating Loan Program (Connecticut) ( links) Qualified Small Business Job Creation Tax Credit (Connecticut) ( links) Reduction of Greenhouse Gas Emissions...

293

Pages that link to "California Public Utilities Commission" ...  

Open Energy Info (EERE)

( links) GRRSection 8-CA-b - CPUC Process ( links) GRRSection 7 - Power Plant Siting, Construction, and Regulation Overview ( links) GRRSection...

294

Alternative Fuels Data Center: Related Links  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Related Links to Related Links to someone by E-mail Share Alternative Fuels Data Center: Related Links on Facebook Tweet about Alternative Fuels Data Center: Related Links on Twitter Bookmark Alternative Fuels Data Center: Related Links on Google Bookmark Alternative Fuels Data Center: Related Links on Delicious Rank Alternative Fuels Data Center: Related Links on Digg Find More places to share Alternative Fuels Data Center: Related Links on AddThis.com... Related Links For a list of additional resources about alternative fuels and advanced vehicles, select one or more categories below. All organizations are provided as suggested resources. The Alternative Fuels Data Center does not endorse these companies or the products and services listed on their websites (see disclaimer).

295

Consequences of natural upwelling in oligotrophic marine ecosystems  

DOE Green Energy (OSTI)

One of the major environmental consequences of Ocean Thermal Energy Conversion (OTEC) plans may be the artificial upwelling of nutrients to the surface waters of oligotrophic ecosystems. Within a 10 km/sup 2/ area, OTEC plants of 1000 MWe total capacity could upwell the same amount of nutrients as occurs naturally off Peru each day. The biological response to possible eutrophication by OTEC plants may not be similar to that within coastal upwelling ecosystems, however. Upwelling in offshore oceanic systems does not lead to increased primary production despite high nutrient content of the euphotic zone. Continuous grazing may not allow phytoplankton blooms to develop in oceanic upwelling systems to the proposed OTEC sites. At present this is a hypothesis to be tested before full evaluation of OTEC induced upwelling can be made.

Walsh, J J

1980-03-01T23:59:59.000Z

296

Pages that link to "Transportation" | Open Energy Information  

Open Energy Info (EERE)

( links) Israel-NREL Cooperation ( links) Transportation Energy Data Book ( links) OpenEI:Requested Pages ( links) User:TwongSandbox (...

297

Pages that link to "Oak Ridge National Laboratory" | Open Energy...  

Open Energy Info (EERE)

About ( links) User:GregZieboldLab Cloud ( links) Biomass Energy Data Book ( links) Transportation Energy Data Book ( links) U.S. DOE Hydropower...

298

Pages that link to "International Energy Agency (IEA)" | Open...  

Open Energy Info (EERE)

IEA Implementing Agreements ( links) Indonesia-IEA Activities ( links) Thailand-IEA Activities ( links) ASEAN-IEA Activities ( links) Asia Pacific...

299

Pages that link to "Pacific Northwest National Laboratory" |...  

Open Energy Info (EERE)

NREL ( links) Commercial Building National Accounts ( links) Water and energy studies ( links) Gateway:U.S. OpenLabs ( links) United States Department...

300

Pages that link to "Invenergy" | Open Energy Information  

Open Energy Info (EERE)

McAdoo Wind Farm ( links) Stanton Energy Center Wind Farm ( links) Beech Ridge Energy Wind Farm ( links) Forward Phase I Wind Farm ( links) Forward...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Pages that link to "Tehachapi CA" | Open Energy Information  

Open Energy Info (EERE)

II CEC Wind Farm ( links) Calwind Resources Wind Farm ( links) Cameron Ridge Wind Farm ( links) Cannon I Wind Farm ( links) Cannon II Wind Farm ...

302

2010 U.S. Smart Grid Vendor Ecosystem  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 1 2010 U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape The Cleantech Group www.cleantech.com Principal Authors Greg Neichin David Cheng Contributing Authors Sheeraz Haji Josh Gould Debjit Mukerji David Hague 2 Table of Contents Page I. Introduction .............................................................................. 3 In-Depth Market Analysis II. Advanced Metering .......................................................... 19 III. Demand Response ............................................................ 39

303

PIPELINES AS COMMUNICATION NETWORK LINKS  

SciTech Connect

This report presents the results of an investigation into two methods of using the natural gas pipeline as a communication medium. The work addressed the need to develop secure system monitoring and control techniques between the field and control centers and to robotic devices in the pipeline. In the first method, the pipeline was treated as a microwave waveguide. In the second method, the pipe was treated as a leaky feeder or a multi-ground neutral and the signal was directly injected onto the metal pipe. These methods were tested on existing pipeline loops at UMR and Batelle. The results reported in this report indicate the feasibility of both methods. In addition, a few suitable communication link protocols for this network were analyzed.

Kelvin T. Erickson; Ann Miller; E. Keith Stanek; C.H. Wu; Shari Dunn-Norman

2005-03-14T23:59:59.000Z

304

Linking electroweak and gravitational generators  

E-Print Network (OSTI)

Using complexified quaternions, an intriguing link between generators of two different and surprisingly commuting four-dimensional representations of the SU(2)xU(1) Lie group, and generators of two four-dimensional spin 1/2 representations of the Spin(3,1) Lie group is established: the former generators completely determine the latter ones, and cross-combined they constitute two different, but closely related, four-dimensional representations of Spin(3,1)xSU(2)xU(1). These representations are used to construct a Spin(3,1)xSU(2)xU(1) gauge invariant Lagrangian, containing two four-spinors consisting not as usual of Weyl two-spinors of opposite helicity and equal weak isospin, but instead of Weyl two-spinors of opposite weak isospin and equal helicity, a construction which arises naturally from the mathematical formalism itself. A possible future generalization, using complexified octonions, is discussed.

John Fredsted

2007-12-14T23:59:59.000Z

305

Persistence of soil organic matter as an ecosystem property  

Science Conference Proceedings (OSTI)

Globally, soil organic matter (SOM) contains more than three times as much carbon as either the atmosphere or terrestrial vegetation. Yet it remains largely unknown why some SOM persists for millennia whereas other SOM decomposes readily—and this limits our ability to predict how soils will respond to climate change. Recent analytical and experimental advances have demonstrated that molecular structure alone does not control SOM stability: in fact, environmental and biological controls predominate. Here we propose ways to include this understanding in a new generation of experiments and soil carbon models, thereby improving predictions of the SOM response to global warming.

Schmidt, M.W.; Torn, M. S.; Abiven, S.; Dittmar, T.; Guggenberger, G.; Janssens, I.A.; Kleber, M.; Kögel-Knabner, I.; Lehmann, J.; Manning, D.A.C.; Nannipieri, P.; Rasse, D.P.; Weiner, S.; Trumbore, S.E.

2011-08-15T23:59:59.000Z

306

Terrestrial origin of SNC meteorites and 30 Myr extinctions' shower source  

E-Print Network (OSTI)

Strong strengthening of material under high confining pressure and jet nature of outflow from impact craters permit to show meteoroid impacts of >=10E6 Mt TNT equivalent are capable of ejecting rocks up to ~1 km in size from the Earth into space. That permits one to propose the terrestrial origin of some NEA's and SNC meteorites. It is shown the isotopic anomalies of nitrogen, argon and xenon can be related with terrestrial mantle samples. The same applies to the oxygen isotope shifts if one recalls the known manifestations of the kinetic effects of isotopic fractionation.

E. M. Drobyshevski

2002-04-19T23:59:59.000Z

307

Dynamic Links and Distributed Computing - CECM  

E-Print Network (OSTI)

Dynamic Links and Distributed Computing ... Next: Advanced Collaboration via Up: InternetExecutable Content, Previous: The Third-Generation Internet ...

308

BSL-3 Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Links | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our...

309

Other Links, Spallation Neutron Source, SNS  

NLE Websites -- All DOE Office Websites (Extended Search)

Other Links ORNL Project Information ORNL Control Web Page ORNL Construction Progress - Real Time WebCam BNLORNL Database...

310

New perspectives and methods in link prediction  

Science Conference Proceedings (OSTI)

This paper examines important factors for link prediction in networks and provides a general, high-performance framework for the prediction task. Link prediction in sparse networks presents a significant challenge due to the inherent disproportion of ... Keywords: class imbalance, link prediction, machine learning, networks

Ryan N. Lichtenwalter; Jake T. Lussier; Nitesh V. Chawla

2010-07-01T23:59:59.000Z

311

Linking Statewide Connectivity Planning to Highway Mitigation: Taking the Next Step in Linking  

E-Print Network (OSTI)

CO. SREP. 2006. Linking Colorado’s Landscapes Phase IIHighway Administration, and the Colorado Department ofMT. SREP. 2005. Linking Colorado’s Landscapes: A Statewide

Kintsch, Julia

2007-01-01T23:59:59.000Z

312

Ecosystem health at the texas coastal bend: a spatial analysis of exposure and response  

E-Print Network (OSTI)

This dissertation investigated locational risks to ecosystem health associated with proximity to industrial complexes. The study was performed at the behest of ranchers and citizens living and working down-prevailing wind from the Formosa Plastics, Inc. and ALCOA facilities located in Calhoun County, Texas. Concerns expressed were for potential genotoxicity resulting from exposure to complex chemical mixtures released by the facilities. Exposure assessment of the marine environment was performed with sediments and oysters from Lavaca Bay being analyzed. Numerous chemicals were found to be present at concentrations considered likely to result in adverse responses in exposed populations. Bayesian geostatistical analysis was performed to determine if the concentrations were affected by a spatial process. Mercury and polycyclic aromatic hydrocarbons were the most notable of the chemicals found to be present at elevated concentrations and affected by a spatial process. Evaluation of maps generated from spatial modeling revealed that proximity to ALCOA resulted in elevated risks for exposure to harmful concentrations of pollutants. Genotoxicity was measured in two sentinel species. Oysters (Crassostrea virginica) were utilized for evaluation of the marine environment and cattle (Bos taurus and Bos taurus crossbred cattle) were chosen for evaluation of the terrestrial environment. Chromosomal aberration analysis was performed on oyster hematocytes. Analysis of the results failed to demonstrate the presence of an important generalized spatial process but some specific locations close to the ALCOA plant had elevations in this measure of genotoxicity. Stress as measured by the lysosomal destabilization assay was also performed on oyster hematocytes. These results were found to be affected by a significant spatial process with the highest degree of destabilization occurring in close proximity to ALCOA. Genotoxicity in cattle was evaluated with the single cell gel electrophoresis assay and chromosomal aberration analysis. Bayesian geostatistical analyis revealed the presence of important spatial processes. DNA-protein cross-linkage was the most notable with a strong indication of increased damage down-prevailing wind from the industrial complexes. Results indicated that proximity to industrial facilities increased the risk for harmful exposures, genotoxicity, and lysosomal destabilization.

Bissett, Wesley Thurlow, Jr.

2007-12-01T23:59:59.000Z

313

Ecosystem health at the Texas coastal bend: a spatial analysis of exposure and response  

E-Print Network (OSTI)

This dissertation investigated locational risks to ecosystem health associated with proximity to industrial complexes. The study was performed at the behest of ranchers and citizens living and working down-prevailing wind from the Formosa Plastics, Inc. and ALCOA facilities located in Calhoun County, Texas. Concerns expressed were for potential genotoxicity resulting from exposure to complex chemical mixtures released by the facilities. Exposure assessment of the marine environment was performed with sediments and oysters from Lavaca Bay being analyzed. Numerous chemicals were found to be present at concentrations considered likely to result in adverse responses in exposed populations. Bayesian geostatistical analysis was performed to determine if the concentrations were affected by a spatial process. Mercury and polycyclic aromatic hydrocarbons were the most notable of the chemicals found to be present at elevated concentrations and affected by a spatial process. Evaluation of maps generated from spatial modeling revealed that proximity to ALCOA resulted in elevated risks for exposure to harmful concentrations of pollutants. Genotoxicity was measured in two sentinel species. Oysters (Crassostrea virginica) were utilized for evaluation of the marine environment and cattle (Bos taurus and Bos taurus crossbred cattle) were chosen for evaluation of the terrestrial environment. Chromosomal aberration analysis was performed on oyster hematocytes. Analysis of the results failed to demonstrate the presence of an important generalized spatial process but some specific locations close to the ALCOA plant had elevations in this measure of genotoxicity. Stress as measured by the lysosomal destabilization assay was also performed on oyster hematocytes. These results were found to be affected by a significant spatial process with the highest degree of destabilization occurring in close proximity to ALCOA. Genotoxicity in cattle was evaluated with the single cell gel electrophoresis assay and chromosomal aberration analysis. Bayesian geostatistical analyis revealed the presence of important spatial processes. DNA-protein cross-linkage was the most notable with a strong indication of increased damage down-prevailing wind from the industrial complexes. Results indicated that proximity to industrial facilities increased the risk for harmful exposures, genotoxicity, and lysosomal destabilization.

Bissett, Wesley Thurlow, Jr.

2007-12-01T23:59:59.000Z

314

Terrestrial laser scanning for measuring the solid wood volume, including branches, of adult standing trees in the forest environment  

Science Conference Proceedings (OSTI)

This study evaluates the potential of terrestrial laser scanning (TLS) to assess the solid wood volume (i.e., stem and branch diameters of more than 7cm) of adult standing trees in the forest environment. The solid wood volume of 42 trees of different ... Keywords: 3D tree modelling, Forestry, LiDAR, Terrestrial laser scanning, Wood volume

Mathieu Dassot; AuréLie Colin; Philippe Santenoise; Meriem Fournier; ThiéRy Constant

2012-11-01T23:59:59.000Z

315

SM Links - Argonne National Laboratories, Materials Sicence Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Links Superconductivity and Magnetism Links Highlight: Swimming Bacteria Turn Microscopic Gears SM Publications...

316

The importance of link evidence in Wikipedia  

E-Print Network (OSTI)

Abstract. Wikipedia is one of the most popular information sources on the Web. The free encyclopedia is densely linked. The link structure in Wikipedia differs from the Web at large: internal links in Wikipedia are typically based on words naturally occurring in a page, and link to another semantically related entry. Our main aim is to find out if Wikipedia’s link structure can be exploited to improve ad hoc information retrieval. We first analyse the relation between Wikipedia links and the relevance of pages. We then experiment with use of link evidence in the focused retrieval of Wikipedia content, based on the test collection of INEX 2006. Our main findings are: First, our analysis of the link structure reveals that the Wikipedia link structure is a (possibly weak) indicator of relevance. Second, our experiments on INEX ad hoc retrieval tasks reveal that if the link evidence is made sensitive to the local context we see a significant improvement of retrieval effectiveness. Hence, in contrast with earlier TREC experiments using crawled Web data, we have shown that Wikipedia’s link structure can help improve the effectiveness of ad hoc retrieval. 1

Jaap Kamps; Marijn Koolen

2008-01-01T23:59:59.000Z

317

Widget:LinkButton | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Widget Edit History Facebook icon Twitter icon » Widget:LinkButton Jump to: navigation, search Basic button for links, opens in the same browser tab. Use Widget:ExternalLinkButton for launching link in a new browser tab (_blank). Parameters Include: action - url to link to value - button text class - add additional css classes, separate multiple classes with spaces (i.e.- btn-primary) style - add style elements, cannot change button color with this (optional) id - element id Examples Default Button Visit FWA {{#Widget:LinkButton | action=http://www.thefwa.com | value=Visit FWA}} Primary Button Visit FWA {{#Widget:LinkButton | action=http://www.thefwa.com | value=Visit FWA | class=btn-primary}}

318

A Modeling Study of the ENSO Influence on the Terrestrial Energy Profile in North America  

Science Conference Proceedings (OSTI)

The influence of the El Niño–Southern Oscillation (ENSO) on the terrestrial energy profile over North America is studied using a 15-yr model simulation. A large-area basin scale (LABs) land surface model is driven using the European Centre for ...

Ji Chen; Praveen Kumar

2004-04-01T23:59:59.000Z

319

Elevated Trace Element Concentrations in Southern Toads, Bufo terrestris, Exposed to Coal Combustion Waste  

E-Print Network (OSTI)

Elevated Trace Element Concentrations in Southern Toads, Bufo terrestris, Exposed to Coal, and behavioral abnormalities in amphibians to coal combustion wastes (coal ash). Few studies, however, have determined trace element concentrations in amphibians exposed to coal ash. In the current study we compare

Hopkins, William A.

320

A COMPARISON BETWEEN APRIL 1999 AND FEBRUARY 2000 SOLAR-TERRESTRIAL CONNECTION EVENTS: INTERPLANETARY ASPECTS  

E-Print Network (OSTI)

for high-resolution solar wind data and to the National Space Science Data Center (NASAA COMPARISON BETWEEN APRIL 1999 AND FEBRUARY 2000 SOLAR-TERRESTRIAL CONNECTION EVENTS, with peak value of -16 nT. In this paper the interplanetary aspects of these two solar

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

BGP-S: a protocol for terrestrial and satellite network integration in network layer  

Science Conference Proceedings (OSTI)

To accomplish network layer integration of terrestrial and satellite IP networks, special exterior gateway protocols are needed. In this work, a new exterior gateway protocol called Border Gateway Protocol-Satellite version (BGP-S) is introduced that ... Keywords: BGP-4, IP-based routing, exterior gateway protocol, satellite networks

Eylem Ekici; Chao Chen

2004-09-01T23:59:59.000Z

322

Supervised identification and reconstruction of near-planar geological surfaces from terrestrial laser scanning  

Science Conference Proceedings (OSTI)

Terrestrial laser scanning is an effective method for digitally capturing outcrops, enabling them to be visualized, analyzed, and revisited in an office environment without the limitations of fieldwork (such as time constraints, weather conditions, outcrop ... Keywords: Bedding, Fractures, LIDAR, Moment of inertia analysis, Outcrop characterization, Segmentation

D. GarcíA-SelléS; O. Falivene; P. ArbuéS; O. Gratacos; S. Tavani; J. A. MuñOz

2011-10-01T23:59:59.000Z

323

TQ2. Global Biomass Burning What is the impact of global biomass burning on the terrestrial  

E-Print Network (OSTI)

TQ2. Global Biomass Burning What is the impact of global biomass burning on the terrestrial and land use. MODIS active fire detections 2000-2006 for Southern California 2001-2004 mean annual burned (bottom), expressed as fraction of grid cell that burns each year. From Giglio et al. (2005), Atmos. Chem

Christian, Eric

324

Monitoring Precipitation over the Arctic Terrestrial Drainage System: Data Requirements, Shortcomings, and Applications of Atmospheric Reanalysis  

Science Conference Proceedings (OSTI)

An effort is under way aimed at historical analysis and monitoring of the pan-Arctic terrestrial drainage system. A key element is the provision of gridded precipitation time series that can be readily updated. This has proven to be a daunting ...

Mark C. Serreze; Martyn P. Clark; David H. Bromwich

2003-04-01T23:59:59.000Z

325

Modeling Plot-Level Biomass and Volume Using Airborne and Terrestrial Lidar Measurements  

E-Print Network (OSTI)

The United States Forest Service (USFS) Forest Inventory and Analysis (FIA) program provides a diverse selection of data used to assess the status of the nation’s forested areas using sample locations dispersed throughout the country. Airborne, and more recently, terrestrial lidar (light detection and ranging) systems are capable of producing accurate measurements of individual tree dimensions and also possess the ability to characterize three-dimensional vertical forest structure. This study investigates the potential of airborne and terrestrial scanning lidar systems for modeling forest volume and aboveground biomass on FIA subplots in the Malheur National Forest, eastern Oregon. A methodology for the creation of five airborne lidar metric sets (four point cloud-based and one individual tree based) and four terrestrial lidar metric sets (three height-based and one distance-based) is presented. Metrics were compared to estimates of subplot aboveground biomass and gross volume derived from FIA data using national and regional allometric equations respectively. Simple linear regression models from the airborne lidar data accounted for 15 percent of the variability in subplot biomass and 14 percent of the variability in subplot volume, while multiple linear regression models increased these amounts to 29 percent and 25 percent, respectively. When subplot estimates of biophysical parameters were scaled to the plot-level and compared with plot-level lidar metrics, simple linear regression models were able to account for 60 percent of the variability in biomass and 71 percent of the variation in volume. Terrestrial lidar metrics produced moderate results with simple linear regression models accounting for 41 percent of the variability in biomass and 46 percent of the variability in volume, with multiple linear regression models accounting for 71 percent and 84 percent, respectively. Results show that: (1) larger plot sizes help to mitigate errors and produce better models; and (2) a combination of height-based and distance-based terrestrial lidar metrics has the potential to estimate biomass and volume on FIA subplots.

Sheridan, Ryan D.

2011-05-01T23:59:59.000Z

326

Ecosystem Services Decision Tree Pilot Test with New York Power Authority  

Science Conference Proceedings (OSTI)

EPRI published the report “Ecosystem Services Decision Tree: A Decision-Support Tool for Consideration of Ecosystem Services in the Electric Power Industry” (1026845) in December of 2012. The Decision Tree was created to help a company determine why, when, and how to consider ecosystem services. The Decision Tree was pilot-tested in 2013 in a theoretical application by New York Power Authority.BackgroundThe pilot test was intended to inform the ...

2013-12-18T23:59:59.000Z

327

Assessing community capacity for ecosystem management : Clayoquot Sound and Redberry Lake biosphere reserves .  

E-Print Network (OSTI)

??Biosphere reserves are regions that are internationally recognized for their ecological significance and work towards ecosystem management. The concept of community capacity, as developed in… (more)

Mendis, Sharmalene Ruwanthi

2004-01-01T23:59:59.000Z

328

Ecosystem carbon dioxide fluxes after disturbance in forests of North America  

E-Print Network (OSTI)

forest in northern Wisconsin, USA, Agric. For. Meteorol. ,managed forests in northern Wisconsin, USA, Ecosystems, 10,Oceanic Sciences, University of Wisconsin?Madison, Madison,

2010-01-01T23:59:59.000Z

329

Environmental genomics reveals a single species ecosystem deep within the Earth  

E-Print Network (OSTI)

Environmental genomics reveals a single species ecosystemMaterial for Environmental genomics reveals a single speciesTechnology Program, DOE Joint Genomics Institute, Berkeley,

Chivian, Dylan

2008-01-01T23:59:59.000Z

330

linked open data | OpenEI Community  

Open Energy Info (EERE)

linked open data linked open data Home Jweers's picture Submitted by Jweers(83) Contributor 10 October, 2012 - 08:20 LOD Workshop Invitation Event linked open data LOD Open Data workshop Update the invitation (attached). It now features a link to the public facing wiki page.Upload Files: application/pdf icon LOD Workshop Invitation Jweers's picture Submitted by Jweers(83) Contributor 8 October, 2012 - 15:42 LOD Workshop Invitation Event linked open data LOD Open Data workshop The latest invitation.Upload Files: application/pdf icon lod_workshop_invitation.pdf Linked Open Data Workshop in Washington, D.C. Description: A group organizing the LOD workshop in Washington, D.C. in fall 2012 A follow-up event to the successful LOD Workshop held in Abu Dhabi last January, this event aims to bring together key parties in the states, to

331

New Optical Link Technologies for HEP Experiments  

E-Print Network (OSTI)

As a concern with the reliability and mass of current optical links in LHC experiments, we are investigating CW lasers and light modulators as an alternative to VCSELs. In addition we are developing data links in air, utilizing steering by MEMS mirrors and optical feedback paths for the control loop. Laser, modulator, and lens systems used are described, as well as two different electronic systems for a free space steering feedback loop. Our prototype system currently operates at 1.25 Gb/s, but could be upgraded. This link works over distances of order meters. Such links might enable one to move communication lasers (e.g. VCSELs) and optical fibers out of tracking detectors, for reasons such as reliability and power consumption. Some applications for free space data links, such as local triggering and data readout and trigger-clock distribution and links for much longer distances are also discussed.

P. Delurgio; W. Fernando; B. Salvachua; D. Lopez; R. Stanek; D. Underwood

2011-09-30T23:59:59.000Z

332

Demo Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Demo Links | National Nuclear Security Administration Demo Links | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Demo Links Home > About Us > Our Operations > Management and Budget > Human Resources > Pay-banding > Demo Links Demo Links Federal Register Notices July 31, 2008: Federal Register Notice This is a link to a PDF document.

333

Distribution of transuranic elements in a freshwater pond ecosystem  

SciTech Connect

Preliminary results are reported from a study initiated on the Hanford Reservation concerning the ecological behavior of $sup 238$Pu, $sup 239$Pu, $sup 240$Pu, and $sup 241$Am in a freshwater environment. This study involves a waste pond which has been receiving Pu processing wastes for about 30 years. The pond has a sufficiently established ecosystem to provide an excellent location for limnological characterization. In addition, the ecological distribution of Pu and Am was investigated. The pond is also highly enriched with nutrients, thus supporting a high level of algal and macrophyte production. Seston (30 percent diatoms) appears to be the principal concentrators of Pu transuranics in the pond system. The major sink for Pu and Am in this system is the sediments. Organic floc, overlaying the pond sediments, is also a major concentrator of transuranics in this system. Aside from the seston and floc, no other ecological components of the pond appear to have concentrations significantly greater than those of the sediment. Dragonfly, larvae, watercress, and snails show concentrations which approximate those of the sediments but nearly all other food web components have levels of Pu and Am which are lower than those of the sediments, thus, Pu and Am seem to be relatively immobile in the aquatic ecosystem. (CH)

Emery, R.M.; Klopfer, D.C.

1975-05-01T23:59:59.000Z

334

Restoring a disappearing ecosystem: the Longleaf Pine Savanna.  

SciTech Connect

Longleaf pine (Pinus palustris) savannas of the southeastern United States contain some of the worlds most diverse plant communities, along with a unique complement of wildlife. Their traditionally open canopy structure and rich understory of grasses and herbs were critical to their vigor. However, a long history of land-use practices such as logging, farming, and fire exclusion have reduced this once-widespread ecosystem to only 3 percent of its original range. At six longleaf pine plantations in South Carolina, Tim Harrington with the Pacific Northwest Research Station and collaborators with the Southern Research Station used various treatments (including prescribed burns, tree thinning, and herbicide applications) to alter the forest structure and tracked how successful each one was in advancing savanna restoration over a 14-year period. They found that typical planting densities for wood production in plantations create dense understory shade that excludes many native herbaceous species important to savannas and associated wildlife. The scientists found that although tree thinning alone did not result in sustained gains, a combination of controlled burning, thinning, and herbicide treatments to reduce woody plants was an effective strategy for recovering the savanna ecosystem. The scientists also found that these efforts must be repeated periodically for enduring benefits.

Harrington, Timothy B. [USFS; Miller, Karl V. [University of Georgia; Park, Noreen

2013-05-01T23:59:59.000Z

335

Geothermal: Website Policies and Important Links  

NLE Websites -- All DOE Office Websites (Extended Search)

GEOTHERMAL TECHNOLOGIES LEGACY COLLECTION - Website Policies and Important Links Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On Home...

336

Background Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Background Links Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing Institutional Research...

337

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Related Links Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing Institutional Research...

338

Related Links on High-Performance Schools  

Energy.gov (U.S. Department of Energy (DOE))

Below are related links to resources for incorporating energy efficiency and renewable energy into building or renovating high-performance schools.

339

Advanced Controls Technologies and Strategies Linking Energy...  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Controls Technologies and Strategies Linking Energy Efficiency and Demand Response Speaker(s): Sila Kiliccote Date: October 6, 2005 - 12:00pm Location: Bldg. 90 Reliable...

340

Major Conformed Contract Links | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Contract Links More Documents & Publications DOE Facility Management Contracts DOEsitefacilitymgtcontractsInternetPosting3-21-11.pdf DOEMajorSiteFacilityContracts2-2011.pdf...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Helpful links for materials transport, safety, etc.  

NLE Websites -- All DOE Office Websites (Extended Search)

Helpful links for materials transport, safety, etc. relating to experiment safety at the APS. Internal Reference Material: Transporting Hazardous Materials "Natural" radioactivity...

342

Argonne TDC: Other Links - Argonne National Laboratory  

Other Links. Biotechnology Industry Organization (BIO) : In 1993, when there were but a handful of biotechnology drugs on the market and the sequencin ...

343

Original Google Earth Links | Open Energy Information  

Open Energy Info (EERE)

Original Google Earth Links Jump to: navigation, search Google Earth Google Earth.png Install Google Earth and explore: Renewable Energy Activity, by state Renewable Incentive...

344

Related Links on High-Performance Buildings  

Energy.gov (U.S. Department of Energy (DOE))

Below are related links to resources for incorporating energy efficiency and renewable energy into high-performance commercial and residential buildings.

345

Argonne TDC: Midwest Links - Argonne National Laboratory  

Midwest Links . Illinois Tectnology Enterprise Center (ITEC): A state-funded center that opened its doors in Fall 2002 to serve life science / technology based ...

346

Short Range Underwater Optical Communication Links.  

E-Print Network (OSTI)

??The future tactical ocean environment will be increasingly complicated. In addition to traditional communication links there will be a proliferation of unmanned vehicles in space,… (more)

Chancey, Mark Alan

2005-01-01T23:59:59.000Z

347

Pages that link to "Energy Sector Management Assistance Program...  

Open Energy Info (EERE)

( links) ESMAP-South Africa-Low Carbon Growth Strategy ( links) ESMAP-China Energy Intensity Reduction Strategy ( links) ESMAP-Indonesia-Low Carbon Development...

348

Pages that link to "Agriculture" | Open Energy Information  

Open Energy Info (EERE)

Activities ( links) Uganda-USAID Climate Activities ( links) ESMAP-China Energy Intensity Reduction Strategy ( links) Brazil National Plan on Climate Change...

349

Pages that link to "Property:Partner" | Open Energy Information  

Open Energy Info (EERE)

Wind Energy Resource Assessment (SWERA) ( links) Power Technologies Energy Data Book ( links) Alaska Renewable Energy Project ( links) BEST-Cement for China...

350

Pages that link to "Brazil" | Open Energy Information  

Open Energy Info (EERE)

(redirect page) ( links) Gateway:Amrica Latina ( links) Brazil-US EPA Environmental Management Activities ( links) Brazil-USAID Climate Activities ...

351

Pages that link to "Blue C Ltd" | Open Energy Information  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) View (previous 50...

352

Pages that link to "DNV Global Energy Concepts" | Open Energy...  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) List of Companies...

353

Pages that link to "Cruising Equipment Company CECO" | Open Energy...  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) View (previous 50...

354

Pages that link to "Clarian Power" | Open Energy Information  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) Gateway:Solar ...

355

Pages that link to "Grays Harbor Ocean Energy Company" | Open...  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) List of Companies...

356

Pages that link to "Tenderland Power" | Open Energy Information  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) List of Companies...

357

Pages that link to "Blue Marble Energy Corporation" | Open Energy...  

Open Energy Info (EERE)

(20 | 50 | 100 | 250 | 500) Washington's 7th congressional district ( links) Seattle, Washington ( links) King County, Washington ( links) View (previous 50...

358

Pages that link to "Clean Technology Fund (CTF)" | Open Energy...  

Open Energy Info (EERE)

Energy Gateway-Finance ( links) Energy Access GatewayFinance ( links) Thailand-Clean Technology Fund (CTF) (redirect page) ( links) World Bank (...

359

Pages that link to "Natural Energy Development Co Ltd NED" |...  

Open Energy Info (EERE)

of Companies in Wind Sector ( links) Gateway:Wind ( links) Bangkok, Thailand ( links) View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500) Retrieved...

360

Pages that link to "Shenzhen, Guangdong Province, China" | Open...  

Open Energy Info (EERE)

Anhui Wuhu Nuclear Power Co ( links) BYD Company Ltd ( links) China BAK Battery Inc ( links) China Guangdong Nuclear Power Holding Co Ltd CGNPC (...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Pages that link to "Lawrence Berkeley National Laboratory (LBNL...  

Open Energy Info (EERE)

Gateway:Amrica LatinaCLEAN ( links) CLEAN List Serve ( links) DOE-2 Building Energy Use and Cost Analysis Software ( links) Home Energy Scoring Tool ...

362

Pages that link to "System Advisor Model (SAM)" | Open Energy...  

Open Energy Info (EERE)

( links) Gateway:U.S. OpenLabsComputer Modeling Software ( links) Energy System and Scenario Analysis Toolkit ( links) Technology Cost and Performance...

363

Pages that link to "BEopt" | Open Energy Information  

Open Energy Info (EERE)

and Scenario Analysis Toolkit ( links) User:TwongSandbox ( links) Building Energy Assessment Toolkit ( links) Search all CLEAN partner activities and...

364

Pages that link to "Anoka, Minnesota" | Open Energy Information  

Open Energy Info (EERE)

Anoka County, Minnesota ( links) Anoka, MN (redirect page) ( links) Ever Cat Fuels LLC ( links) View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)...

365

Pages that link to "NEG Micon" | Open Energy Information  

Open Energy Info (EERE)

50 | next 50) (20 | 50 | 100 | 250 | 500) Bitworks Wind Farm ( links) Cameron Ridge Wind Farm ( links) East Winds (formerly Altech III) Wind Farm ( links)...

366

Pages that link to "Fuels & Efficiency" | Open Energy Information  

Open Energy Info (EERE)

Cars: Case Study of Stockholm and Sweden ( links) The BEST Experiences with Bioethanol Buses ( links) UNDP-GEF Fuel Cell Bus Programme: Update ( links) View...

367

Analysis and Mitigation of Tropospheric Effects on Ka Band Satellite Signals and Estimation of Ergodic Capacity and Outage Probability for Terrestrial Links  

E-Print Network (OSTI)

Propulsion Labs (JPL) is considering building a large antenna array using 6 m and 12 m antennas for its Deep Space

Enserink, Scott Warren

2012-01-01T23:59:59.000Z

368

Placing links in mobile banking application  

Science Conference Proceedings (OSTI)

This study compares two alternative ways to organize links as navigation elements in mobile banking applications. For the comparison, two alternative banking applications were tested. The applications that were tested had the same content but different ... Keywords: links, mobile application, mobile banking, navigation, organizing, placing, usability

Tuuli Hyvärinen; Anne Kaikkonen; Mika Hiltunen

2005-09-01T23:59:59.000Z

369

An operational link between MUBs and SICs  

E-Print Network (OSTI)

We exhibit an operational connection between mutually unbiased bases and symmetric infomationally complete positive operator-valued measures. Assuming that the latter exists, we show that there is a strong link between these two structures in all prime power dimensions. We also demonstrate that a similar link cannot exists in dimension 6.

Roberto Beneduci; Tom Bullock; Paul Busch; Claudio Carmeli; Teiko Heinosaari; Alessandro Toigo

2013-06-25T23:59:59.000Z

370

On publishing linked open government data  

Science Conference Proceedings (OSTI)

In the last years, a number of government led initiatives have been launched worldwide aiming at making government data freely available to everyone, without limiting restrictions. Linked Data has been employed by some of these as a paradigm that allows ... Keywords: linked data, open government data, semantic web

Evangelos Kalampokis, Efthimios Tambouris, Konstantinos Tarabanis

2013-09-01T23:59:59.000Z

371

Scalable OWL 2 reasoning for linked data  

Science Conference Proceedings (OSTI)

The goal of the Scalable OWL 2 Reasoning for Linked Data lecture is twofold: first, to introduce scalable reasoning and querying techniques to SemanticWeb researchers as powerful tools to make use of Linked Data and large-scale ontologies, and second, ...

Aidan Hogan; Jeff Z. Pan; Axel Polleres; Yuan Ren

2011-08-01T23:59:59.000Z

372

Using binary search on a linked list  

Science Conference Proceedings (OSTI)

In this article a variation of binary search applicable to a linked list structure is examined. There are no additional data structure properties imposed on the list; that is the list may be singly or multiply linked, but it is not required that the ...

Firooz Khosraviyani

1990-08-01T23:59:59.000Z

373

Methodological overview: Some steps toward a central theory of ecosystem dynamics  

Science Conference Proceedings (OSTI)

Ecology is said by many to suffer for want of a central theory, such as Newton's laws of motion provide for classical mechanics or Schroedinger's wave equation provides for quantum physics. From among a plurality of contending laws to govern ecosystem ... Keywords: Ascendancy, Biodiversity, Central theory, Ecology, Ecosystem, Eutrophication

Robert E. Ulanowicz

2003-12-01T23:59:59.000Z

374

Assessment of multiple ecosystem services in New Zealand at the catchment scale  

Science Conference Proceedings (OSTI)

The ecosystem services approach to resource management considers all services provided by ecosystems to all sections of the community. As such, it could be used to assess sustainability of human development and equity in resource use. To facilitate the ... Keywords: Climate regulation, Erosion, Land-use change, Landscape modelling, Scenario analysis, Water quality

A. -G. E. Ausseil; J. R. Dymond; M. U. F. Kirschbaum; R. M. Andrew; R. L. Parfitt

2013-05-01T23:59:59.000Z

375

Modeling net ecosystem metabolism with an artificial neural network and Bayesian belief network  

Science Conference Proceedings (OSTI)

Artificial neural networks (ANNs) and Bayesian belief networks (BBNs) utilizing select environmental variables were developed and evaluated, with the intent to model net ecosystem metabolism (a proxy for system trophic state) within a freshwater wetland. ... Keywords: Artificial neural networks, Bayesian belief networks, Knowledge extraction, Net ecosystem metabolism

William A. Young, II; David F. Millie; Gary R. Weckman; Jerone S. Anderson; David M. Klarer; Gary L. Fahnenstiel

2011-10-01T23:59:59.000Z

376

Tidal Heating of Terrestrial Extra-Solar Planets and Implications for their Habitability  

E-Print Network (OSTI)

The tidal heating of hypothetical rocky (or terrestrial) extra-solar planets spans a wide range of values depending on stellar masses and initial orbits. Tidal heating may be sufficiently large (in many cases, in excess of radiogenic heating) and long-lived to drive plate tectonics, similar to the Earth's, which may enhance the planet's habitability. In other cases, excessive tidal heating may result in Io-like planets with violent volcanism, probably rendering them unsuitable for life. On water-rich planets, tidal heating may generate sub-surface oceans analogous to Europa's with similar prospects for habitability. Tidal heating may enhance the outgassing of volatiles, contributing to the formation and replenishment of a planet's atmosphere. To address these issues, we model the tidal heating and evolution of hypothetical extra-solar terrestrial planets. The results presented here constrain the orbital and physical properties required for planets to be habitable.

Brian Jackson; Rory Barnes; Richard Greenberg

2008-08-20T23:59:59.000Z

377

Tidal Heating of Terrestrial Extra-Solar Planets and Implications for their Habitability  

E-Print Network (OSTI)

The tidal heating of hypothetical rocky (or terrestrial) extra-solar planets spans a wide range of values depending on stellar masses and initial orbits. Tidal heating may be sufficiently large (in many cases, in excess of radiogenic heating) and long-lived to drive plate tectonics, similar to the Earth's, which may enhance the planet's habitability. In other cases, excessive tidal heating may result in Io-like planets with violent volcanism, probably rendering them unsuitable for life. On water-rich planets, tidal heating may generate sub-surface oceans analogous to Europa's with similar prospects for habitability. Tidal heating may enhance the outgassing of volatiles, contributing to the formation and replenishment of a planet's atmosphere. To address these issues, we model the tidal heating and evolution of hypothetical extra-solar terrestrial planets. The results presented here constrain the orbital and physical properties required for planets to be habitable.

Jackson, Brian; Greenberg, Richard

2008-01-01T23:59:59.000Z

378

Review of world experience and properties of materials for encapsulation of terrestrial photovoltaic arrays. Final report  

DOE Green Energy (OSTI)

Available information defining the state of the art of encapsulation materials and processes for terrestrial photovoltaic devices and related applications were collected and analyzed. Based on criteria of properties, processability, availability, and cost, candidate materials were identified which have potential for use in encapsulation systems for low-cost, long-life terrestrial photovoltaic arrays manufactured by automated, high-volume processes. The criteria for consideration of the encapsulation systems were based on the goals for arrays with a lifetime of over 20 years high reliability, an efficiency greater than 10 percent, a total array price less than $500/kW, and a production capacity of 5 x 10/sup 5/ kW/yr. (WDM)

Carmichael, D.C.; Gaines, G.B.; Sliemers, F.A.; Kistler, C.W.; Igou, R.D.

1976-07-21T23:59:59.000Z

379

EEO Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Links | National Nuclear Security Administration Links | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog EEO Links Home > About Us > Our Operations > Management and Budget > Office of Civil Rights > EEO Links EEO Links DOE Office of Civil Rights (weblink) Department Of Justice Civil Rights Division (weblink) Department of Veterans Affairs (weblink)

380

Central Internet Database (CID) Related Links  

Office of Environmental Management (EM)

Related Links Related Links Central Internet Database CID Photo Banner Links to Waste and Materials Disposition Information Below is a collection of reports and links to various documents that provide information related to waste and material disposition. While most of these are directly related to the Department of Energy's waste management activities, some links include information from the commercial sector. Some of the information provides an historical context for current waste disposition alternatives. To view PDF documents, please ensure Adobe Reader is installed on your computer, it is available to download here Exit CID Website . Waste Volume Related Databases For DOE/EM waste and material stream data: Waste Information Management System (WIMS) provided by Florida International University Exit CID Website

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

ElectraLink | Open Energy Information  

Open Energy Info (EERE)

ElectraLink ElectraLink Jump to: navigation, search Name ElectraLink Place London, United Kingdom Product London-based ElectraLink specialises in technology to communicate data between the participants in the competitive electricity market. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

382

Constraining the Radii of Neutron Stars with Terrestrial Nuclear Laboratory Data  

E-Print Network (OSTI)

Neutron star radii are primarily determined by the pressure of isospin asymmetric matter which is proportional to the slope of the nuclear symmetry energy. Available terrestrial laboratory data on the isospin diffusion in heavy-ion reactions at intermediate energies constrain the slope of the symmetry energy. Using this constraint, we show that the radius (radiation radius) of a 1.4 solar mass neutron star is between 11.5 (14.4) and 13.6 (16.3) km.

Bao-An Li; Andrew W. Steiner

2005-11-23T23:59:59.000Z

383

A new UV-A/B protecting pigment in the terrestrial cyanobacterium Nostoc commune  

SciTech Connect

A new ultraviolet (UV)-A/B absorbing pigment with maxima at 312 and 330 nanometers from the cosmopolitan terrestrial cyanobacterium Nostoc commune is described. The pigment is found in high amounts (up to 10% of dry weight) in colonies grown under solar UV radiation but only in low concentrations in laboratory cultures illuminated by artificial light without UV. Its experimental induction by UV as well as its capacity to efficiently protect Nostoc against UV radiation is reported.

Scherer, S.; Chen, T.W.; Boeger, P. (Universitaet Konstanz (West Germany))

1988-12-01T23:59:59.000Z

384

Single-junction solar cells with the optimum band gap for terrestrial concentrator applications  

DOE Patents (OSTI)

A single-junction solar cell having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown that the presence of absorption bands in the direct spectrum has the effect of "pinning" the optimum band gap for a wide range of operating conditions at a value of 1.14.+-.0.02 eV. Efficiencies exceeding 30% may be possible at high concentration ratios for devices with the ideal band gap.

Wanlass, Mark W. (Golden, CO)

1994-01-01T23:59:59.000Z

385

Isotopic power supplies for space and terrestrial systems: quality assurance by Sandia National Laboratories  

DOE Green Energy (OSTI)

The Sandia National Laboratories participation in Quality Assurance (QA) programs for Radioisotopic Thermoelectric Generators which have been used in space and terrestrial systems over the past 15 years is summarized. Basic elements of the program are briefly described and recognition of assistance from other Sandia organizations is included. Descriptions of the various systems for which Sandia has had the QA responsibility are also presented. In addition, the outlook for Sandia participation in RTG programs for the next several years is noted.

Hannigan, R.L.; Harnar, R.R.

1981-09-01T23:59:59.000Z

386

A Bioenergy Ecosystem - ORNL Review Vol. 44, No. 3, 2011  

NLE Websites -- All DOE Office Websites (Extended Search)

Search Magazine Search Magazine Go Features Next Article Previous Article Comments Home Clyde Thurman A Bioenergy Ecosystem BESC partnerships translate R&D into biofuels Paul Gilna, director of the BioEnergy Science Center at ORNL, is a man on a mission. In fact his entire organization is working under a Department of Energy mandate to focus the world's leading scientific minds and resources on revolutionizing bioenergy production. When the center was created in 2007, this innovative partnership of national laboratories, a private research foundation, universities and industries set out to break down the barriers to developing viable and affordable biofuel alternatives to petroleum-based fuels from plants that do not compete with food crops, such as switchgrass or poplar trees. Four years into a five-year mission, they

387

Coal-ash spills highlight ongoing risk to ecosystems  

SciTech Connect

Two recent large-scale spills of coal combustion waste have highlighted the old problem of handling the enormous quantity of solid waste produced by coal. Both spills happened at power plants run by the Tennessee Valley Authority (TVA). In December 2008 a holding pond for coal ash collapsed at a power plant in Kingstom, Tenn., releasing coal-ash sludge onto farmland and into rivers: in January 2009 a break in a pipe removing water from a holding pond for gypsum caused a spill at Widows Creek Fossil Plant in Stevenson, Ala. The article discusses the toxic outcome of such disasters on ecosystems, quoting work by Willaim Hopkins at Virginia Polytechnic Institute and State University and recommendations and reports of the US EPA. 2 photos.

Chatterjee, R.

2009-05-01T23:59:59.000Z

388

Monitoring genetic damage to ecosystems from hazardous waste  

SciTech Connect

Applications of ecological toxicity testing to hazardous waste management have increased dramatically over the last few years, resulting in a greater awareness of the need for improved biomonitoring techniques. Our laboratory is developing advanced techniques to assess the genotoxic effects of environmental contamination on ecosystems. We have developed a novel mutagenesis assay using the nematode Caenorhabditis elegans, which is potentially applicable for multimedia studies in soil, sediment, and water. In addition, we are conducting validation studies of a previously developed anaphase aberration test that utilizes sea urchin embryos. Other related efforts include field validation studies of the new tests, evaluation of their potential ecological relevance, and analysis of their sensitivity relative to that of existing toxicity tests that assess only lethal effects, rather than genetic damage.

Anderson, S.L.

1992-03-01T23:59:59.000Z

389

Carbon and nitrogen isotope studies in an arctic ecosystem  

Science Conference Proceedings (OSTI)

This proposal requests funding for the completion of our current ecological studies at the MS-117 research site at Toolik Lake, Alaska. We have been using a mix of stable and radioisotope techniques to assess the fluxes of carbon and nitrogen within the ecosystem and the implications for long-term carbon storage or loss from the tundra. Several tentative conclusions have emerged from our study including: Tundra in the foothills is no longer accumulating carbon. Surficial radiocarbon abundances show little or no accumulation since 1000--2500 yrs BP. Coastal plain tundra is still accumulating carbon, but the rate of accumulation has dropped in the last few thousand years. Carbon export from watersheds in the Kuparuk and Imnavait Creek drainages are in excess of that expected from estimated primary productivity; and Nitrogen isotope abundances vary between species of plants and along hydrologic gradients.

Schell, D.M.

1989-01-01T23:59:59.000Z

390

Carbon and nitrogen isotope studies in an arctic aquatic ecosystem  

Science Conference Proceedings (OSTI)

The Phase II studies of the R4D Program on stream and watershed ecology reflect the accomplishments and accumulation of baseline information obtained during the past studies. Although our rough estimates indicate that nitrogen inputs to the watershed ba lance losses, the carbon fluxes suggest that they are not in equilibrium and that there is a net loss of carbon from the tundra ecosystem through respiration and transport out of the watershed via the stream system. Radiocarbon profiles of soil sections coupled with mass transport calculations revealed that peat accumulation has essentially ceased in the R4D watershed and appears to be in ablative loss. Thus the carbon flux measurements provide validation tests for the PLANTGRO and GAS-HYDRO models of the PHASE II studies. These findings are also important in the context of global CO{sub 2} increases from positive feedback mechanisms in peatlands associated with climatic warming in the subarctic regions.

Schell, D.M.

1989-12-31T23:59:59.000Z

391

Carbon and nitrogen isotope studies in an arctic aquatic ecosystem  

Science Conference Proceedings (OSTI)

The Phase II studies of the R4D Program on stream and watershed ecology reflect the accomplishments and accumulation of baseline information obtained during the past studies. Although our rough estimates indicate that nitrogen inputs to the watershed ba lance losses, the carbon fluxes suggest that they are not in equilibrium and that there is a net loss of carbon from the tundra ecosystem through respiration and transport out of the watershed via the stream system. Radiocarbon profiles of soil sections coupled with mass transport calculations revealed that peat accumulation has essentially ceased in the R4D watershed and appears to be in ablative loss. Thus the carbon flux measurements provide validation tests for the PLANTGRO and GAS-HYDRO models of the PHASE II studies. These findings are also important in the context of global CO[sub 2] increases from positive feedback mechanisms in peatlands associated with climatic warming in the subarctic regions.

Schell, D.M.

1989-01-01T23:59:59.000Z

392

Carbon and nitrogen isotope studies in an arctic ecosystem  

Science Conference Proceedings (OSTI)

This proposal requests funding for the completion of our current ecological studies at the MS-117 research site at Toolik Lake, Alaska. We have been using a mix of stable and radioisotope techniques to assess the fluxes of carbon and nitrogen within the ecosystem and the implications for long-term carbon storage or loss from the tundra. Several tentative conclusions have emerged from our study including: Tundra in the foothills is no longer accumulating carbon. Surficial radiocarbon abundances show little or no accumulation since 1000--2500 yrs BP. Coastal plain tundra is still accumulating carbon, but the rate of accumulation has dropped in the last few thousand years. Carbon export from watersheds in the Kuparuk and Imnavait Creek drainages are in excess of that expected from estimated primary productivity; and Nitrogen isotope abundances vary between species of plants and along hydrologic gradients.

Schell, D.M.

1989-12-31T23:59:59.000Z

393

2010 U.S. Smart Grid Vendor Ecosystem Report on the companies and market  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0 U.S. Smart Grid Vendor Ecosystem Report on the companies and 0 U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape 2010 U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape The Smart Grid vendor ecosystem is an increasingly interdependent web of companies. Vendors of Advanced Metering Infrastructure (AMI) products (meters, communication units, and related software) have emerged as leaders in establishing cross-industry partnerships. Investments in AMI infrastructure have catalyzed new working relationships throughout the industry. 2010 U.S. Smart Grid Vendor Ecosystem Report on the companies and market dynamics shaping the current U.S. smart grid landscape More Documents & Publications

394

TERRESTRIAL PLANET FORMATION THROUGH ACCRETION OF SUBLIMATING ICY PLANETESIMALS IN A COLD NEBULA  

SciTech Connect

Most of the theories of the solar system formation stand on the assumption that the formation of planetesimals occurs in a transparent (i.e., optically thin) nebula, in which H{sub 2}O ice is unstable at the formation region of the terrestrial planet due to direct stellar irradiation. However, in the astronomical context, it is confirmed by both observations and numerical models that protoplanetary disks are initially opaque (i.e., optically thick) owing to floating small dust particles, and the interior of the disk is colder than the transparent disk. If planetesimals are formed in the opaque cold nebula, they should be mainly composed of H{sub 2}O ice, even at the formation region of terrestrial planets. Abundant icy material would help the formation of planetesimals through enhancement of the dust amount. Icy planetesimals start sublimation when the protoplanetary disk gets transparent through clearance of small dust particles. Here, we investigated the consequence of such icy planetesimal formation through numerical simulations of the competition between the sublimation and accretion of icy planetesimals. It was shown that various types of planets ranging from rocky planets to water-ball planets can be formed inside the location of the snow line of a transparent disk depending on the disk mass and the time evolution of disk transparency. We found size-dependent water content of icy planetesimals, which suggests potential difference in the redox state between meteorites and terrestrial planets at the same distance from the central star.

Machida, Ryosuke [Current address: Fixstars Corporation, 1-11-1 Ohsaki, Shinagawa-ku, Tokyo 141-0032 (Japan); Abe, Yutaka, E-mail: mach@eps.s.u-tokyo.ac.j [Department of Earth and Planetary Science, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

2010-06-20T23:59:59.000Z

395

Representation of Terrestrial Hydrology and Large-Scale Drought of the Continental United States from the North American Regional Reanalysis  

Science Conference Proceedings (OSTI)

The North American Regional Reanalysis (NARR) is a state-of-the-art land–atmosphere reanalysis product that provides improved representation of the terrestrial hydrologic cycle compared to previous global reanalyses, having the potential to ...

Justin Sheffield; Ben Livneh; Eric F. Wood

2012-06-01T23:59:59.000Z

396

Evaluation of Biases in JRA-25/JCDAS Precipitation and Their Impact on the Global Terrestrial Carbon Balance  

Science Conference Proceedings (OSTI)

This study evaluates a modeled precipitation field and examines how its bias affects the modeling of the regional and global terrestrial carbon cycle. Spatial and temporal variations in precipitation produced by the Japanese 25-yr reanalysis (JRA-...

Makoto Saito; Akihiko Ito; Shamil Maksyutov

2011-08-01T23:59:59.000Z

397

Current Issues in Terrestrial Solar Radiation Instrumentation for Energy, Climate and Space Applications Preprint prepared for New RAD '99  

DOE Green Energy (OSTI)

Reductions of uncertainty in terrestrial solar radiation measurements are needed to validate the Earth's radiation balance derived from satellite data. Characterization of solar energy resources for renewable technologies requires greater time and spatial resolution for economical technology deployment. Solar radiation measurement research at the National Renewable Energy Laboratory addresses calibrations, operational characteristics, and corrections for terrestrial solar radiation measurements. We describe progress in measurements of broadband diffuse-sky radiation, and characterization of field instrument thermal offsets and spectral irradiance. The need and prospects for absolute references for diffuse and long-wave terrestrial solar radiation measurements are discussed. Reductions in uncertainty of broadband irradiance measurements from tens of watts per square meter to a few (one to two) watts per square meter are reported, which reduce time and labor to quantify and identify trends in artificial optical radiation sources, terrestrial solar radiation, and the Earth's radiation budget.

Stoffel, T. L.; Reda, I.; Myers, D. R.; Renne, D.; Wilcox, S. W.; Treadwell, J.

1999-10-20T23:59:59.000Z

398

Time Scales of Terrestrial Carbon Response Related to Land-Use Application: Implications for Initializing an Earth System Model  

Science Conference Proceedings (OSTI)

The dynamic vegetation and carbon cycling component, LM3V, of the Geophysical Fluid Dynamics Laboratory (GFDL) prototype Earth system model (ESM2.1), has been designed to simulate the effects of land use on terrestrial carbon pools, including ...

Lori T. Sentman; Elena Shevliakova; Ronald J. Stouffer; Sergey Malyshev

2011-10-01T23:59:59.000Z

399

Aircraft Regional-Scale Flux Measurements over Complex Landscapes of Mangroves, Desert, and Marine Ecosystems of Magdalena Bay, Mexico  

Science Conference Proceedings (OSTI)

Natural ecosystems are rarely structurally simple or functionally homogeneous. This is true for the complex coastal region of Magdalena Bay, Baja California Sur, Mexico, where the spatial variability in ecosystem fluxes from the Pacific coastal ...

Rommel C. Zulueta; Walter C. Oechel; Joseph G. Verfaillie; Steven J. Hastings; Beniamino Gioli; William T. Lawrence; Kyaw Tha Paw U

2013-07-01T23:59:59.000Z

400

An efficient method for change detection of soil, vegetation and water in the Northern Gulf of Mexico wetland ecosystem  

Science Conference Proceedings (OSTI)

Mapping and monitoring wetland ecosystems over large geographic areas based on remote sensing is challenging because of the spatial and spectral complexities of the inherent ecosystem dynamics. The main objective of this research was to develop and evaluate ...

Limin Yang, Collin Homer, John Brock, Joyce Fry

2013-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Pages that link to "Economic Development" | Open Energy Information  

Open Energy Info (EERE)

Development Plans and Building of Regional and Local Capacities ( links) Modeling International Relationships in Applied General Equilibrium (MIRAGE) ( links)...

402

Pages that link to "Geothermal Energy Association" | Open Energy...  

Open Energy Info (EERE)

Resource Exploration and Confirmation ( links) Phase IV - Resource Production and Power Plant Construction ( links) Phase I - Resource Procurement and Identification...

403

Pages that link to "Annual US Geothermal Power Production and...  

Open Energy Info (EERE)

Resource Exploration and Confirmation ( links) Phase IV - Resource Production and Power Plant Construction ( links) Phase I - Resource Procurement and Identification...

404

Pages that link to "Hydrothermal System" | Open Energy Information  

Open Energy Info (EERE)

Resource Exploration and Confirmation ( links) Phase IV - Resource Production and Power Plant Construction ( links) Phase I - Resource Procurement and Identification...

405

Pages that link to "Industry" | Open Energy Information  

Open Energy Info (EERE)

Transport Sectors: Policy Drivers and International Trade Aspects ( links) Asia-Energy Efficiency Guide to Industry ( links) Supporting Entrepreneurs for...

406

Pages that link to "Template:BASEPAGENAME" | Open Energy Information  

Open Energy Info (EERE)

Communications (transclusion) ( links) Definition:Controllable and Regulating Inverter (transclusion) ( links) Definition:Critical Peak Rebates (transclusion) ...

407

Studies of the terrestrial O{sub 2} and carbon cycles in sand dune gases and in biosphere 2  

Science Conference Proceedings (OSTI)

Molecular oxygen in the atmosphere is coupled tightly to the terrestrial carbon cycle by the processes of photosynthesis, respiration, and burning. This dissertation examines different aspects of this coupling in four chapters. Chapter 1 explores the feasibility of using air from sand dunes to reconstruct atmospheric O{sub 2} composition centuries ago. Such a record would reveal changes in the mass of the terrestrial biosphere, after correction for known fossil fuel combustion, and constrain the fate of anthropogenic CO{sub 2}.

Severinghaus, J.P.

1995-12-31T23:59:59.000Z

408

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

The National Nuclear Security Administration The National Nuclear Security Administration Related Links Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > Related Links Related Links NNSA Lab Directed Research and Development (LDRD) Lab Directed Research and Development Collaborations DOE Adanced Scientific Computing Research DTRA (Defense Threat Reduction Agency) NAS (National Academy of Sciences) NSF (National Science Foundation) DOD (Department of Defense) NASA Exascale Activities NNSA Exascale Environment Planning Workshop ASCR Co-Design Centers Supercomputing Top 500 List ASC at Supercomputing Conference Printer-friendly version Printer-friendly version Facebook

409

A Global Eddy-Resolving Coupled Physical-Biological Model: Physical Influences on a Marine Ecosystem in the North Pacific  

Science Conference Proceedings (OSTI)

Physical influences on a marine ecosystem in the open ocean are investigated using a simplified four-component ecosystem model embedded in an eddy-resolving ocean general-circulation model (OGCM). The annual cycle of temperature, nitrate, and phytoplankton ... Keywords: Marine ecosystem, North Pacific, eddy-resolving OGCM, physical processes

Yoshikazu Sasai; Akio Ishida; Hideharu Sasaki; Shintaro Kawahara; Hitoshi Uehara; Yasuhiro Yamanaka

2006-07-01T23:59:59.000Z

410

Highly cross-linked nanoporous polymers  

DOE Patents (OSTI)

Condensation polymerization followed by a supercritical extraction step can be used to obtain highly cross-linked nanoporous polymers with high surface area, controlled pore sizes and rigid structural integrity. The invention polymers are useful for applications requiring separation membranes.

Steckle, Jr., Warren P. (Los Alamos, NM); Apen, Paul G. (Los Alamos, NM); Mitchell, Michael A. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

411

Highly cross-linked nanoporous polymers  

DOE Patents (OSTI)

Condensation polymerization followed by a supercritical extraction step can be used to obtain highly cross-linked nanoporous polymers with high surface area, controlled pore sizes and rigid structural integrity. The invention polymers are useful for applications requiring separation membranes.

Steckle, Jr., Warren P. (Los Alamos, NM); Apen, Paul G. (Los Alamos, NM); Mitchell, Michael A. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

412

Small Business Linked Deposit Program (Oklahoma)  

Energy.gov (U.S. Department of Energy (DOE))

The Small Business Linked Deposit Program provides below-market interest rates for qualified small businesses and certified industrial parks through local financing sources. Loans are for a two...

413

Linked Investment Program for Commercial Enterprises (Maine)  

Energy.gov (U.S. Department of Energy (DOE))

The Linked Investment Program for Commercial Enterprises reduces a borrower’s interest rate. The Maine State Treasurer makes a certificate of deposit at up to 2% less than the prevailing rate on...

414

Linked Deposit Loan Program (West Virginia)  

Energy.gov (U.S. Department of Energy (DOE))

The Linked Deposit Loan Program is targeted at small, private firms with 50 or fewer employees and gross annual revenues of $5 million or less comes. This loan offered through the West Virginia...

415

Data Link Switching Client Access Protocol  

Science Conference Proceedings (OSTI)

This memo describes the Data Link Switching Client Access Protocol that is used between workstations and routers to transport SNA/ NetBIOS traffic over TCP sessions. Any questions or comments should be sent to dcap@cisco.com.

S. Chiang; J. Lee; H. Yasuda

1997-02-01T23:59:59.000Z

416

Pages that link to "Building Life-Cycle Cost (BLCC) Program"...  

Open Energy Info (EERE)

Analysis Toolkit ( links) Financing Initiatives Toolkit ( links) Building Energy Assessment Toolkit ( links) BLCC (redirect page) ( links) Create...

417

Pages that link to "Definition:Fuel cell" | Open Energy Information  

Open Energy Info (EERE)

natural gas ( links) Definition:Electricity ( links) Definition:Inverter ( links) Definition:Electrode ( links) Definition:Electrolyte (...

418

Temporal Land Cover Analysis for Net Ecosystem Improvement  

SciTech Connect

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.

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

2013-04-09T23:59:59.000Z

419

Proceedings of the Columbia River Estuary Conference on Ecosystem Restoration.  

DOE Green Energy (OSTI)

The 2008 Columbia River Estuary Conference was held at the Liberty Theater in Astoria, Oregon, on April 19-20. The conference theme was ecosystem restoration. The purpose of the conference was to exchange data and information among researchers, policy-makers, and the public, i.e., interrelate science with management. Conference organizers invited presentations synthesizing material on Restoration Planning and Implementation (Session 1), Research to Reduce Restoration Uncertainties (Session 2), Wetlands and Flood Management (Session 3), Action Effectiveness Monitoring (Session 4), and Management Perspectives (Session 5). A series of three plenary talks opened the conference. Facilitated speaker and audience discussion periods were held at the end of each session. Contributed posters conveyed additional data and information. These proceedings include abstracts and notes documenting questions from the audience and clarifying answers from the presenter for each talk. The proceedings also document key points from the discussion periods at the end of each session. The conference program is outlined in the agenda section. Speaker biographies are presented in Appendix A. Poster titles and authors are listed in Appendix B. A list of conference attendees is contained in Appendix C.

U.S. Bonneville Power Administration

2008-08-01T23:59:59.000Z

420

Single-junction solar cells with the optimum band gap for terrestrial concentrator applications  

DOE Patents (OSTI)

A single-junction solar cell is described having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown that the presence of absorption bands in the direct spectrum has the effect of ''pinning'' the optimum band gap for a wide range of operating conditions at a value of 1.14[+-]0.02 eV. Efficiencies exceeding 30% may be possible at high concentration ratios for devices with the ideal band gap. 7 figures.

Wanlass, M.W.

1994-12-27T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Terrestrial Solar Spectral Modeling Tools and Applications for Photovoltaic Devices: Preprint  

SciTech Connect

This conference paper describes the variations in terrestrial spectral irradiance on photovoltaic devices can be an important consideration in photovoltaic device design and performance. This paper describes three available atmospheric transmission models, MODTRAN, SMARTS2, and SPCTRAL2. We describe the basics of their operation and performance, and applications in the photovoltaic community. Examples of model input and output data and comparisons between the model results for each under similar conditions are presented. The SMARTS2 model is shown to be much easier to use, as accurate as the complex MODTRAN model, and more accurate than the historical NREL SPCTRAL2 model.

Myers, D. R.; Emery, K. E.; Gueymard, C.

2002-05-01T23:59:59.000Z

422

From top-level to domain ontologies: ecosystem classifications as a case study  

Science Conference Proceedings (OSTI)

This paper shows how to use a top-level ontology to create robust and logically coherent domain ontology in a way that facilitates computational implementation and interoperability. It uses a domain ontology of ecosystem classification and delineation ...

Thomas Bittner

2007-09-01T23:59:59.000Z

423

DOE/EA-1518: Kootenai River Ecosystems Environmental Assessment (June 2005)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Kootenai River Ecosystem Kootenai River Ecosystem Final Environmental Assessment Bonneville Power Administration June 2005 Kootenai River Ecosystem Responsible Agencies: U.S. Department of Energy, Bonneville Power Administration (BPA), Kootenai Tribe of Idaho (KTOI) and Idaho Department of Fish and Game (IDFG). Name of Proposed Project: Kootenai River Ecosystem. State Involved: Idaho. Abstract: The Kootenai River is currently nutrient poor and has been so for about 25 years. Low nutrient levels are partly responsible for the low productivity found in the river and part of the reason that important fish populations are not doing well. BPA proposes to fund KTOI and IDFG to add liquid nitrogen and phosphorus to the Kootenai River in Idaho from late June through September for up to five

424

Mathematical Modelling and Numerical Simulation of Marine Ecosystems With Applications to Ice Algae.  

E-Print Network (OSTI)

??Sea-ice ecosystem modelling is a novel field of research. In this thesis, the main organism studied is sea-ice algae. A basic introduction to algae and… (more)

Wickramage, Shyamila Iroshi Perera

2013-01-01T23:59:59.000Z

425

Improving parameterization of scalar transport through vegetation in a coupled ecosystem-atmosphere model  

E-Print Network (OSTI)

Several regional-scale ecosystem models currently parameterize subcanopy scalar transport using a rough-wall boundary eddy diffusivity formulation. This formulation predicts unreasonably high soil evaporation beneath tall, ...

Link, Percy Anne

2008-01-01T23:59:59.000Z

426

Integration of remote sensing and ecosystem modelling techniques to estimate forest net carbon uptake  

Science Conference Proceedings (OSTI)

Estimates of forest gross primary production (GPP) can be obtained using a parametric model (C-Fix) that combines ground and remotely sensed data. A methodology is presented to convert these GPP estimates into values of net ecosystem exchange (NEE). ...

F. Maselli; M. Chiesi; L. Fibbi; M. Moriondo

2008-04-01T23:59:59.000Z

427

The evolution of business ecosystems : interspecies competition in the steel industry  

E-Print Network (OSTI)

This thesis contributes toward the building of a theory of the evolution of business ecosystems by exploring the applicability of Piepenbrock's' theoretical framework to a commodity industrial setting, namely the U.S. steel ...

Mathur, Akshat

2010-01-01T23:59:59.000Z

428

The semi-automated classification of acoustic imagery for characterizing coral reef ecosystems  

Science Conference Proceedings (OSTI)

Coral reef habitat maps describe the spatial distribution and abundance of tropical marine resources, making them essential for ecosystem-based approaches to planning and management. Typically, these habitat maps have been created from optical and acoustic ...

B. M. Costa, T. A. Battista

2013-09-01T23:59:59.000Z

429

Rapidly integrating services into the linked data cloud  

Science Conference Proceedings (OSTI)

The amount of data available in the Linked Data cloud continues to grow. Yet, few services consume and produce linked data. There is recent work that allows a user to define a linked service from an online service, which includes the specifications for ... Keywords: linked API, linked data, service modeling

Mohsen Taheriyan; Craig A. Knoblock; Pedro Szekely; José Luis Ambite

2012-11-01T23:59:59.000Z

430

Identifying spam link generators for monitoring emerging web spam  

Science Conference Proceedings (OSTI)

In this paper, we address the question of how we can identify hosts that will generate links to web spam. Detecting such spam link generators is important because almost all new spam links are created by them. By monitoring spam link generators, we can ... Keywords: information retrieval, link analysis, web spam

Young-joo Chung; Masashi Toyoda; Masaru Kitsuregawa

2010-04-01T23:59:59.000Z

431

Environmental Justice Links | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Links Links Environmental Justice Links Public Information Center DOE Library U.S. Department of Health and Human Services (HHS), National Health Information Center U.S. Department of Health and Human Services (HHS), Office of Minority Health Resource Center U.S. Department of Housing and Urban Development Online Library U.S. Department of Interior Library U.S. Department of Labor Library U.S. Department of Transportation (DOT) Library U.S. Environmental Protection Agency Public Information Centers U.S. National Agricultural Library (USDA) Legal Resources Earthjustice (formerly: Sierra Club Legal Defense Fund) Lawyers' Committee for Civil Rights Under Law New Mexico Environmental Law Center New York Lawyers for the Public Interest The Environmental Law Institute Environmental Law & Climate Change Center (from LexisNexis)

432

Related Links | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Los Alamos Field Office > Related Los Alamos Field Office > Related Links Related Links NNSA and Other Related Links DOE/NNSA Phonebook Freedom of Information Act Department of Energy DOE Directives DOE Jobs Online Defense Nuclear Facilities Safety Board DOE Pulse Publication DOE Office of Health, Safety and Security USA.Gov Los Alamos County Los Alamos National Laboratory LANL Phonebook National Nuclear Security Administration NNSA Service Center - Albuquerque NNSA Nevada Field Office New Mexico Environmental Department - LANL Sandia National Laboratories Waste Isolation Pilot Plant U.S. Department of Homeland Security Code of Federal Regulations Printer-friendly version Printer-friendly version Facebook Twitter Youtube Flickr General Information About Los Alamos Field Office Contact Us Employee Concerns Program

433

Facility Representative Program: Subject Matter Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Subject Matter Links Subject Matter Links Nuclear Office of Nuclear Safety and Environment Nuclear Regulatory Commission American Nuclear Society (ANS) Nuclear Energy Institute International Atomic Energy Agency (IAEA) Electrical OSHA Electrical Safety Information Underwriters Laboratories National Electrical Manufacturers Association Institute of Electrical and Electronic Engineers (IEEE) IPC - Association Connecting Electronics Industries OSHA Laser Hazards Chemical DOE Chemical Safety Program DOE Chronic Beryllium Disease Prevention Program EPA Chemical Information Material Safety Data Sheets Search NIOSH Guide to Chemical Hazards American Petroleum Institute Alternative Fluorocarbons Environmental Acceptability Study American Institute of Chemical Engineers Chemical Reactivity Worksheet

434

NREL: Financing Geothermal Power Projects - Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links Related Links View these websites for more information on geothermal power project financing. NREL Geothermal Policymakers' Guidebooks NREL Geothermal Policymakers' Guidebooks Learn the five key steps for creating effective policy and increasing the deployment of geothermal electricity generation technologies. California Energy Commission's Geothermal Program Here you'll find information on the California Energy Commission's geothermal program, including geothermal energy, funding opportunities, and contacts. Database of State Incentives for Renewables and Energy Efficiency This database of state, local, utility, and federal incentives and policies that promote renewable energy and energy efficiency can help you find financing incentives and opportunities in your state.

435

Related Links on Hawaii | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hawaii Hawaii Related Links on Hawaii Below are related links to resources specifically for implementing energy efficiency and renewable energy technologies in Hawaii. Learn more about deployment efforts in Hawaii. Department of Economic Development, Business, and Tourism The state's Department of Business, Economic Development and Tourism works closely with DOE and the National Renewable Energy Laboratory (NREL) to implement deployment efforts from Hawaii Clean Energy Initiative activities. Find resources for economic and statistical data, business development opportunities, energy and conservation information, and foreign trade advantages. Electric Vehicles in Hawaii The state of Hawaii sees the use of electric vehicles (EVs) as one solution to reducing the state's petroleum consumption and provides information on

436

Modeling soil quality thresholds to ecosystem recovery at Fort Benning, GA, USA  

SciTech Connect

The objective of this research was to use a simple model of soil carbon (C) and nitrogen (N) dynamics to predict nutrient thresholds to ecosystem recovery on degraded soils at Fort Benning, Georgia, in the southeastern USA. Artillery, wheeled, and tracked vehicle training at military installations can produce soil disturbance and potentially create barren, degraded soils. Ecosystem reclamation is an important component of natural resource management at military installations. Four factors were important to the development of thresholds to recovery of aboveground biomass on degraded soils: (1) initial amounts of aboveground biomass, (2) initial soil C stocks (i.e., soil quality), (3) relative recovery rates of biomass, and (4) soil sand content. Forests and old fields on soils with varying sand content had different predicted thresholds for ecosystem recovery. Soil C stocks at barren sites on Fort Benning were generally below predicted thresholds to 100% recovery of desired future ecosystem conditions defined on the basis of aboveground biomass. Predicted thresholds to ecosystem recovery were less on soils with more than 70% sand content. The lower thresholds for old field and forest recovery on more sandy soils were apparently due to higher relative rates of net soil N mineralization. Calculations with the model indicated that a combination of desired future conditions, initial levels of soil quality (defined by soil C stocks), and the rate of biomass accumulation determine the predicted success of ecosystem recovery on disturbed soils.

Garten Jr, Charles T [ORNL; Ashwood, Tom L [ORNL

2004-12-01T23:59:59.000Z

437

Pages that link to "Property:YearFounded" | Open Energy Information  

Open Energy Info (EERE)

( links) CPower ( links) Institute for Environmental Solutions ( links) Oak Ridge National Laboratory ( links) 1st Light Energy, Inc. ( links) 4th...

438

An Evidence-Based Evaluation of the Cumulative Effects of Tidal Freshwater and Estuarine Ecosystem Restoration on Endangered Juvenile Salmon in the Columbia River: Final Report  

SciTech Connect

The listing of 13 salmon and steelhead stocks in the Columbia River basin (hereafter collectively referred to as “salmon”) under the Endangered Species Act of 1973, as amended, has stimulated tidal wetland restoration in the lower 235 kilometers of the Columbia River and estuary for juvenile salmon habitat functions. The purpose of the research reported herein was to evaluate the effect on listed salmon of the restoration effort currently being conducted under the auspices of the federal Columbia Estuary Ecosystem Restoration Program (CEERP). Linking changes in the quality and landscape pattern of tidal wetlands in the lower Columbia River and estuary (LCRE) to salmon recovery is a complex problem because of the characteristics of the ecosystem, the salmon, the restoration actions, and available sampling technologies. Therefore, we designed an evidence-based approach to develop, synthesize, and evaluate information to determine early-stage (~10 years) outcomes of the CEERP. We developed an ecosystem conceptual model and from that, a primary hypothesis that habitat restoration activities in the LCRE have a cumulative beneficial effect on juvenile salmon. There are two necessary conditions of the hypothesis: • habitat-based indicators of ecosystem controlling factors, processes, and structures show positive effects from restoration actions, and • fish-based indicators of ecosystem processes and functions show positive effects from restoration actions and habitats undergoing restoration. Our evidence-based approach to evaluate the primary hypothesis incorporated seven lines of evidence, most of which are drawn from the LCRE. The lines of evidence are spatial and temporal synergies, cumulative net ecosystem improvement, estuary-wide meta-analysis, offsite benefits to juvenile salmon, landscape condition evaluation, and evidence-based scoring of global literature. The general methods we used to develop information for the lines of evidence included field measurements, data analyses, modeling, meta-analysis, and reanalysis of previously collected data sets. We identified a set of 12 ancillary hypotheses regarding habitat and salmon response. Each ancillary hypothesis states that the response metric will trend toward conditions at relatively undisturbed reference sites. We synthesized the evidence for and against the two necessary conditions by using eleven causal criteria: strength, consistency, specificity, temporality, biological gradient, plausibility, coherence, experiment, analogy, complete exposure pathway, and predictive performance. Our final evaluation included cumulative effects assessment because restoration is occurring at multiple sites and the collective effect is important to salmon recovery. We concluded that all five lines of evidence from the LCRE indicated positive habitat-based and fish-based responses to the restoration performed under the CEERP, although tide gate replacements on small sloughs were an exception. Our analyses suggested that hydrologic reconnections restore access for fish to move into a site to find prey produced there. Reconnections also restore the potential for the flux of prey from the site to the main stem river, where our data show that they are consumed by salmon. We infer that LCRE ecosystem restoration supports increased juvenile salmon growth and enhanced fitness (condition), thereby potentially improving survival rates during the early ocean stage.

Diefenderfer, Heida L.; Johnson, Gary E.; Thom, Ronald M.; Borde, Amy B.; Woodley, Christa M.; Weitkamp, Laurie A.; Buenau, Kate E.; Kropp, Roy K.

2013-12-01T23:59:59.000Z

439

Grid-BGC: A Grid-Enabled Terrestrial Carbon Cycle Modeling System, Euro-Par 2005  

E-Print Network (OSTI)

Abstract. Grid-BGC is a Grid-enabled terrestrial biogeochemical cycle simulator collaboratively developed by the National Center for Atmospheric Research (NCAR) and the University of Colorado (CU) with funding from NASA. The primary objective of the project is to utilize Globus Grid technology to integrate inexpensive commodity cluster computational resources at CU with the mass storage system at NCAR while hiding the logistics of data transfer and job submission from the scientists. We describe a typical process for simulating the terrestrial carbon cycle, present our solution architecture and software design, and describe our implementation experiences with Grid technology on our systems. By design the Grid-BGC software framework is extensible in that it can utilize other grid-accessible computational resources and can be readily applied to other climate simulation problems which have similar workflows. Overall, this project demonstrates an end-to-end system which leverages Grid technologies to harness distributed resources across organizational boundaries to achieve a cost-effective solution to a computeintensive problem. 1

Jason Cope; Craig Hartsough; Peter Thornton; Henry M. Tufo; Nathan Wilhelmi; Matthew Woitaszek

2005-01-01T23:59:59.000Z

440

Modeling high-energy cosmic ray induced terrestrial muon flux: A lookup table  

E-Print Network (OSTI)

On geological timescales, the Earth is likely to be exposed to an increased flux of high energy cosmic rays (HECRs) from astrophysical sources such as nearby supernovae, gamma ray bursts or by galactic shocks. Typical cosmic ray energies may be much higher than the ~ 1 GeV flux which normally dominates. These high-energy particles strike the Earth's atmosphere initiating an extensive air shower. As the air shower propagates deeper, it ionizes the atmosphere by producing charged secondary particles. Secondary particles such as muons and thermal neutrons produced as a result of nuclear interactions are able to reach the ground, enhancing the radiation dose. Muons contribute 85% to the radiation dose from cosmic rays. This enhanced dose could be potentially harmful to the biosphere. This mechanism has been discussed extensively in literature but has never been quantified. Here, we have developed a lookup table that can be used to quantify this effect by modeling terrestrial muon flux from any arbitrary cosmic ray spectra with 10 GeV - 1 PeV primaries. This will enable us to compute the radiation dose on terrestrial planetary surfaces from a number of astrophysical sources.

Dimitra Atri; Adrian L. Melott

2010-11-19T23:59:59.000Z

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Survey of protected terrestrial vertebrates on the Oak Ridge Reservation 1995 annual progress report  

SciTech Connect

This progress report discusses surveys of protected terrestrial vertebrates on the Oak Ridge Reservation (ORR) from October 1994 through September 1995. These surveys are important to help avoid or minimize potential impacts of projects on the ORR to species listed as threatened, endangered, or in need of management by the US Fish and Wildlife Service and the Tennessee Wildlife Resources Agency. Currently, there are 69 species of federally or state-listed terrestrial vertebrates that may occur in Tennessee. Not all of these are expected to occur on the ORR, nor do resources permit comprehensive sampling for all of them over the entire ORR. To effectively organize sampling efforts, listed animal species that might be present were targeted using a prioritization system based on historical and recent sightings, species distributions, literature reviews, and personal communications. Sampling was conducted during the time of the year when each targeted species would most likely be encountered. Several trapping and surveying methods were used, including pitfall traps, Sherman traps, seining, artificial covers, and cave and avian surveys.

Vail, E.R.; Mitchell, J.M.; Webb, J.W.; King, A.L.; Hamlett, P.A.

1995-11-01T23:59:59.000Z

442

DOE Patents Database - Website Policies and Important Links  

Office of Scientific and Technical Information (OSTI)

Website Policies and Important Links Javascript Not Enabled OSTI Security Website Policies and Important Links Some links on this page may take you to non-federal websites. Their...

443

Atmospheric constraints for the CO2 partial pressure on terrestrial planets near the outer edge of the habitable zone  

E-Print Network (OSTI)

In recent years, several potentially habitable, probably terrestrial exoplanets and exoplanet candidates have been discovered. The amount of CO2 in their atmosphere is of great importance for surface conditions and habitability. In the absence of detailed information on the geochemistry of the planet, this amount could be considered as a free parameter. Up to now, CO2 partial pressures for terrestrial planets have been obtained assuming an available volatile reservoir and outgassing scenarios. This study aims at calculating the allowed maximum CO2 pressure at the surface of terrestrial exoplanets orbiting near the outer boundary of the habitable zone by coupling the radiative effects of the CO2 and its condensation at the surface. These constraints might limit the permitted amount of atmospheric CO2, independent of the planetary reservoir. A 1D radiative-convective cloud-free atmospheric model was used. CO2 partial pressures are fixed according to surface temperature and vapor pressure curve. Considered scena...

von Paris, Philip; Hedelt, Pascal; Rauer, Heike; Selsis, Franck; Stracke, Barbara

2012-01-01T23:59:59.000Z

444

Introduction to the Use of Link Analysis  

E-Print Network (OSTI)

;1998 ... enter Link Analysis Change in User Attitudes about Web Search Today · "It's not my homepage users entering the words "miserable failure" into the popular search engine are directed The key is stating it in connection with terms that will be widely searched. It does no good to simply say

Kunkle, Tom

445

The powerrank web link analysis algorithm  

Science Conference Proceedings (OSTI)

The web graph follows the power law distribution and has a hierarchy structure. But neither the PageRank algorithm nor any of its improvements leverage these attributes. In this paper, we propose a novel link analysis algorithm "the PowerRank algorithm", ... Keywords: hierarchy structure, page rank algorithm, power distribution

Yizhou Lu; Benyu Zhang; Wensi Xi; Zheng Chen; Yi Liu; Michael R. Lyu; Wei-ying Ma

2004-05-01T23:59:59.000Z

446

Link energy minimization for wireless networks  

Science Conference Proceedings (OSTI)

In this paper, we formalize the problem of minimizing the energy dissipated to successfully transmit a single information bit over a link, considering circuit power consumption, packetization and retransmission overhead, bit/packet error probability, ... Keywords: Circuit power consumption, Energy minimization, Fixed average power, Fixed average rate

Tianqi Wang; Wendi Heinzelman; Alireza Seyedi

2012-05-01T23:59:59.000Z

447

The missing link: augmenting biology laboratory notebooks  

Science Conference Proceedings (OSTI)

Using a participatory design process, we created three prototype augmented laboratory notebooks that provide the missing link between paper, physical artifacts and on-line data. The final a-book combines a graphics tablet and a PDA. The tablet ... Keywords: SVG, a-book, augmented laboratory note-books, augmented reality, information layers, interaction lens, interactive paper

Wendy E. Mackay; Guillaume Pothier; Catherine Letondal; Kaare Bøegh; Hans Erik Sørensen

2002-10-01T23:59:59.000Z

448

Lexical and semantic clustering by web links  

Science Conference Proceedings (OSTI)

Recent Web-searching and -mining tools are combining text and link analysis to improve ranking and crawling algorithms. The central assumption behind such approaches is that there is a correlation between the graph structure of the Web and the text and ...

Filippo Menczer

2004-12-01T23:59:59.000Z

449

Pages that link to "Biofuel Solutions" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Biofuel Solutions" Biofuel Solutions Jump to: navigation, search What links here Page:...

450

Pages that link to "London, Greater London, United Kingdom" ...  

Open Energy Info (EERE)

London, United Kingdom: View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500) Advanced Plasma Power APP ( links) Aldwych International Ltd ( links) AllMerus Energy...

451

Pages that link to "Crouch, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Crouch, Idaho" Crouch, Idaho Jump to: navigation, search What links here Page: Crouch, Idaho...

452

Pages that link to "Aberdeen, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Aberdeen, Idaho" Aberdeen, Idaho Jump to: navigation, search What links here Page: Aberdeen, Idaho...

453

Pages that link to "Bonners Ferry, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bonners Ferry, Idaho" Bonners Ferry, Idaho Jump to: navigation, search What links here Page: Bonners...

454

Pages that link to "Caldwell, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Caldwell, Idaho" Caldwell, Idaho Jump to: navigation, search What links here Page: Caldwell, Idaho...

455

Pages that link to "Blackfoot, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Blackfoot, Idaho" Blackfoot, Idaho Jump to: navigation, search What links here Page: Blackfoot,...

456

Pages that link to "Arco, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Arco, Idaho" Arco, Idaho Jump to: navigation, search What links here Page: Arco, Idaho...

457

Pages that link to "Camas County, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Camas County, Idaho" Camas County, Idaho Jump to: navigation, search What links here Page: Camas...

458

Pages that link to "Banks, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Banks, Idaho" Banks, Idaho Jump to: navigation, search What links here Page: Banks, Idaho...

459

Pages that link to "Arbon Valley, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Arbon Valley, Idaho" Arbon Valley, Idaho Jump to: navigation, search What links here Page: Arbon...

460

Pages that link to "American Falls, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "American Falls, Idaho" American Falls, Idaho Jump to: navigation, search What links here Page: American...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Pages that link to "Arimo, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Arimo, Idaho" Arimo, Idaho Jump to: navigation, search What links here Page: Arimo, Idaho...

462

Pages that link to "Bonner County, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bonner County, Idaho" Bonner County, Idaho Jump to: navigation, search What links here Page: Bonner...

463

Pages that link to "Ashton, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Ashton, Idaho" Ashton, Idaho Jump to: navigation, search What links here Page: Ashton, Idaho...

464

Pages that link to "Idaho Geological Survey" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Idaho Geological Survey" Idaho Geological Survey Jump to: navigation, search What links...

465

Pages that link to "Cascade, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Cascade, Idaho" Cascade, Idaho Jump to: navigation, search What links here Page: Cascade, Idaho...

466

Pages that link to "Basalt, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Basalt, Idaho" Basalt, Idaho Jump to: navigation, search What links here Page: Basalt, Idaho...

467

Pages that link to "Clayton, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Clayton, Idaho" Clayton, Idaho Jump to: navigation, search What links here Page: Clayton, Idaho...

468

Pages that link to "Idaho Wind Energy" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Idaho Wind Energy" Idaho Wind Energy Jump to: navigation, search What links here Page:...

469

Pages that link to "Athol, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Athol, Idaho" Athol, Idaho Jump to: navigation, search What links here Page: Athol, Idaho...

470

Pages that link to "Ammon, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Ammon, Idaho" Ammon, Idaho Jump to: navigation, search What links here Page: Ammon, Idaho...

471

Pages that link to "Atomic City, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Atomic City, Idaho" Atomic City, Idaho Jump to: navigation, search What links here Page: Atomic City,...

472

Pages that link to "Chubbuck, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Chubbuck, Idaho" Chubbuck, Idaho Jump to: navigation, search What links here Page: Chubbuck, Idaho...

473

Pages that link to "Council, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Council, Idaho" Council, Idaho Jump to: navigation, search What links here Page: Council, Idaho...

474

Pages that link to "Albion, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Albion, Idaho" Albion, Idaho Jump to: navigation, search What links here Page: Albion, Idaho...

475

Pages that link to "Clearwater County, Idaho" | Open Energy Informatio...  

Open Energy Info (EERE)

this page on Facebook icon Twitter icon Pages that link to "Clearwater County, Idaho" Clearwater County, Idaho Jump to: navigation, search What links here Page:...

476

Pages that link to "Castleford, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Castleford, Idaho" Castleford, Idaho Jump to: navigation, search What links here Page: Castleford,...

477

Pages that link to "Carey, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Carey, Idaho" Carey, Idaho Jump to: navigation, search What links here Page: Carey, Idaho...

478

Pages that link to "Bliss, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Bliss, Idaho" Bliss, Idaho Jump to: navigation, search What links here Page: Bliss, Idaho...

479

Pages that link to "Clark County, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Clark County, Idaho" Clark County, Idaho Jump to: navigation, search What links here Page: Clark...

480

Pages that link to "Challis, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Challis, Idaho" Challis, Idaho Jump to: navigation, search What links here Page: Challis, Idaho...

Note: This page contains sample records for the topic "link terrestrial ecosystem" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Pages that link to "Bloomington, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bloomington, Idaho" Bloomington, Idaho Jump to: navigation, search What links here Page: Bloomington,...

482

Pages that link to "Bovill, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Bovill, Idaho" Bovill, Idaho Jump to: navigation, search What links here Page: Bovill, Idaho...

483

Pages that link to "Burley, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Burley, Idaho" Burley, Idaho Jump to: navigation, search What links here Page: Burley, Idaho...

484

Pages that link to "Bellevue, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bellevue, Idaho" Bellevue, Idaho Jump to: navigation, search What links here Page: Bellevue, Idaho...

485

Pages that link to "Bruneau, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bruneau, Idaho" Bruneau, Idaho Jump to: navigation, search What links here Page: Bruneau, Idaho...

486

Pages that link to "Cambridge, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Cambridge, Idaho" Cambridge, Idaho Jump to: navigation, search What links here Page: Cambridge,...

487

Pages that link to "Bancroft, Idaho" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Bancroft, Idaho" Bancroft, Idaho Jump to: navigation, search What links here Page: Bancroft, Idaho...

488

Pages that link to "Almo, Idaho" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Almo, Idaho" Almo, Idaho Jump to: navigation, search What links here Page: Almo, Idaho...

489

Pages that link to "Qinghai Lighting Ltd" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "Qinghai Lighting Ltd" Qinghai Lighting Ltd Jump to: navigation, search What links here Page:...

490

Pages that link to "Ningbo Liaoyuan Lighting Co" | Open Energy...  

Open Energy Info (EERE)

this page on Facebook icon Twitter icon Pages that link to "Ningbo Liaoyuan Lighting Co" Ningbo Liaoyuan Lighting Co Jump to: navigation, search What links here Page:...

491

Pages that link to "Solar lighting" | Open Energy Information  

Open Energy Info (EERE)

History Share this page on Facebook icon Twitter icon Pages that link to "Solar lighting" Solar lighting Jump to: navigation, search What links here Page: Solar lighting...

492

Pages that link to "Hydrogen Energy Data Book" | Open Energy...  

Open Energy Info (EERE)

this page on Facebook icon Twitter icon Pages that link to "Hydrogen Energy Data Book" Hydrogen Energy Data Book Jump to: navigation, search What links here Page:...

493

Pages that link to "Centre for Science and Environment" | Open...  

Open Energy Info (EERE)

page on Facebook icon Twitter icon Pages that link to "Centre for Science and Environment" Centre for Science and Environment Jump to: navigation, search What links here...

494

Pages that link to "Geothermal/Environment" | Open Energy Information  

Open Energy Info (EERE)

Share this page on Facebook icon Twitter icon Pages that link to "GeothermalEnvironment" GeothermalEnvironment Jump to: navigation, search What links here Page:...

495

Pages that link to "Coal Mining (Iowa)" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Coal Mining (Iowa)" Coal Mining (Iowa) Jump to: navigation, search What links here Page:...

496

CLEAN-Linking International Instruments to Support Low Emission...  

Open Energy Info (EERE)

CLEAN-Linking International Instruments to Support Low Emission Planning Webinar- TNAs, NAMAs, LEDS and Roadmaps Jump to: navigation, search Tool Summary Name: CLEAN-Linking...

497

Pages that link to "Boardman, Oregon" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Boardman, Oregon" Boardman, Oregon Jump to: navigation, search What links here Page:...

498

Pages that link to "Boardman, Ohio" | Open Energy Information  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Boardman, Ohio" Boardman, Ohio Jump to: navigation, search What links here Page: Boardman,...

499

Pages that link to "Boardman, North Carolina" | Open Energy Informatio...  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Boardman, North Carolina" Boardman, North Carolina Jump to: navigation, search What links...

500

Other Links | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Other Links Project Assessment (OPA) OPA Home About OPA Project Management SC Projects Other Links SC Federal Project Directors (FPD) and FPD Resources Contact Information Project...