National Library of Energy BETA

Sample records for forest carbon portal

  1. Forest Carbon Portal | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprint Ventures Jump to: navigation,Portal Jump to:

  2. Research Report Forests and carbon

    E-Print Network [OSTI]

    , baseline, carbon, climate change mitigation, forestry, quality assurance, sequestration. FCRP013/FCResearch Report Forests and carbon: a review of additionality #12;#12;Forests and carbon: a review. ISBN 978-0-85538-816-4 Valatin, G. (2011). Forests and carbon: a review of additionality. Forestry

  3. This Issue: Forest Carbon Stocks and Flows

    E-Print Network [OSTI]

    Policy Framework Managing Forests because Carbon Matters: Integrating Energy, Products, and Land's Note M.T. Goergen Jr. SAF TASK FORCE REPORT Managing Forests because Carbon Matters: Integrating EnergyThis Issue: Forest Carbon Stocks and Flows Climate­Forest Interactions Biomass Use and Feedstock

  4. Carbon Monoxide Sensor - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbon

  5. Carbon Nanofiber Supercapacitor - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbonProcess for

  6. UNDP-Low Carbon Portal | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: EnergyU.S. EPA Region 10 Jump3 -Low Carbon Portal

  7. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    to fossil fuel Regenerated forest energy used in the LoggingManaging forests because carbon matters: Integrating energy,Energy from post-consumer residues relevant private forest

  8. Carbon Ion Pump for Carbon Dioxide Removal - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbon Capture,andIndustrial

  9. Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect on forest

    E-Print Network [OSTI]

    Gray, Matthew

    ecosystem's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy, sustain life10/13/2010 1 Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect

  10. Soil Carbon Accumulation During Temperate Forest Succession

    E-Print Network [OSTI]

    Grogan, Paul

    K7L 3N6, Canada ABSTRACT Carbon sequestration in soils that have previously beendepletedoforganic the soil carbon sequestration potential of such lands by sampling adjacent mature forest and agricultural abandonment is more important than soil type in determining the potential magnitude of carbon sequestration

  11. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    forests provide more carbon sequestration benefits than let-the relative carbon sequestration benefits of let-growlife cycle carbon sequestration benefits, averaged over 120,

  12. Biomass Chronosequences of United States Forests: Implications for Carbon Storage

    E-Print Network [OSTI]

    Lichstein, Jeremy W.

    Management and Carbon Sequestration Forests account for a large fraction of the carbon stored in global soils for forest management aimed at carbon sequestration is controversial. On the one hand, logging diminishes of succession (Peet 1981, 1992; Shugart 1984). In the context of forest management aimed at carbon sequestration

  13. Spring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation

    E-Print Network [OSTI]

    Brown, Sally

    and Concerns "Pursuing Carbon and Forest Sustainability in Forest Biomass Energy Production" Craig PartridgeSpring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation and Energy Independence May 15, 2012, 1-5:30 p.m., NHS Hall at CUH, UW Botanic Gardens School

  14. Increasing carbon nanotube forest density

    E-Print Network [OSTI]

    McCarthy, Alexander P

    2014-01-01

    The outstanding mechanical, electrical, thermal, and morphological properties of individual carbon nanotubes (CNTs) open up exciting potential applications in a wide range of fields. One such application is replacing the ...

  15. DENMAN FORESTRY ISSUES SERIES Role of Forests and Forest Products in Carbon Mitigation

    E-Print Network [OSTI]

    Brown, Sally

    1 DENMAN FORESTRY ISSUES SERIES Role of Forests and Forest Products in Carbon Mitigation and Energy Professor in Sustainable Resource Sciences, UW School of Environmental and Forest Sciences PARTICIPANTS Tom Gower ­ Professor, Department of Forest Ecology and Management, University of Wisconsin,Madison, WI Rick

  16. Forest Carbon and Biomass Energy – LCA Issues and Challenges

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 2D—Building Market Confidence and Understanding II: Carbon Accounting and Woody Biofuels Forest Carbon and Biomass Energy – LCA Issues and Challenges Reid Miner, Vice President, NCASI

  17. Carbon Dioxide Capture at a Reduced Cost - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbon Capture,

  18. Carbon Nanotube Field Emission Devices - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbonProcess

  19. Carbon dioxide emission during forest fires ignited by lightning

    E-Print Network [OSTI]

    Pelc, Magdalena

    2009-01-01

    In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

  20. Carbon dioxide emission during forest fires ignited by lightning

    E-Print Network [OSTI]

    Magdalena Pelc; Radoslaw Osuch

    2009-03-31

    In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

  1. Superhydrophobic Carbon Nanotube Forests Kenneth K. S. Lau*1

    E-Print Network [OSTI]

    (PTFE) coating on the surface of the nanotubes. Superhydrophobicity is achieved down to the microscopic functionalization of vertically aligned carbon nanotubes with a non-wetting polytetrafluoroethylene (PTFE) coating, our PTFE-coated carbon nanotube forests aim to mimic nature's design. By growing a forest of nanotube

  2. Increasing carbon storage in intact African tropical forests

    E-Print Network [OSTI]

    Malhi, Yadvinder

    to predictions of future levels of atmospheric carbon dioxide1,2 . The role of tropical forests is critical dioxide concentrations, may be the cause of the increase in carbon stocks13 , as some theory14 and models2 with estimates of fossil fuel emissions, ocean carbon fluxes and carbon released from land-use change, indicate

  3. Influence of stand age on the magnitude and seasonality of carbon fluxes in Canadian forests

    E-Print Network [OSTI]

    2012-01-01

    seasons lead to less carbon sequestration by a subalpineboreal forests to global carbon sequestration (Kurz et al. ,off- set point when carbon sequestration equals carbon loss

  4. ORIGINAL PAPER Changes in carbon density for three old-growth forests

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    a living laboratory for studying forest carbon sequestration under natural environmental conditions that forest landscapes on Changbai Mountain are indeed carbon sinks. Keywords Carbon sequestration . China provide baselines that reveal the potential for continued carbon sequestration in many places where

  5. Carbon fluxes and storage in forests and landscapes

    E-Print Network [OSTI]

    Turner, Monica G.

    , as they store 45 % of the terrestrial carbon and account for ~50 % of soil calbon sequestration (Bonan 2008Chapter 6 Carbon fluxes and storage in forests and landscapes Jiquan Chen, Ranjeet John, Ge Sun this chapter with a discussion of the major carbon fluxes (e.g., gross primary ploductlon, ecosystem

  6. Historical forest baselines reveal potential for continued carbon sequestration

    E-Print Network [OSTI]

    Mladenoff, David

    Historical forest baselines reveal potential for continued carbon sequestration Jeanine M-based studies suggest that land-use history is a more important driver of carbon sequestration in these systems agricultural lands are being promoted as important avenues for future carbon sequestration (8). But the degree

  7. Isotopic composition of carbon dioxide from a boreal forest fire: Inferring carbon loss from measurements and modeling

    E-Print Network [OSTI]

    Schuur, Edward A. G; Trumbore, Susan E; Mack, Michelle C; Harden, Jennifer W

    2003-01-01

    emissions from Canadian forest fires, 1959 – 1999, Can. J.and O. N. Krankina, Forest fires in Russia: Carbon dioxideDIOXIDE FROM A BOREAL FOREST FIRE Park, R. , and S. Epstein,

  8. Remote estimation of carbon dioxide uptake by a Mediterranean forest

    E-Print Network [OSTI]

    Garbulsky, Martín

    Remote estimation of carbon dioxide uptake by a Mediterranean forest M A R T I´ N F. G A R B U L Science and Environment, University of Tuscia, 01100 Viterbo, Italy Abstract The estimation of the carbon of the ecology of global change. Current remote sensing methodologies for estimating gross primary productivity

  9. A pre-publication version of Carbon Trends in U.S. forestlands: a context for the role of soils in forest carbon sequestration. The Potential of U.S. Forest Soils to Sequester Carbon. Chapter 3

    E-Print Network [OSTI]

    in forest carbon sequestration. The Potential of U.S. Forest Soils to Sequester Carbon. Chapter 3 in: Kimble-45. Carbon Trends in U.S. Forestlands: A Context for the Role of Soils in Forest Carbon Sequestration Linda SA pre-publication version of Carbon Trends in U.S. forestlands: a context for the role of soils

  10. MINIMUM COST STRATEGIES FOR SEQUESTERING CARBON IN FORESTS Darius M. Adams

    E-Print Network [OSTI]

    McCarl, Bruce A.

    MINIMUM COST STRATEGIES FOR SEQUESTERING CARBON IN FORESTS Darius M. Adams Ralph J. Alig Bruce A the costs of meeting explicit targets for increments of carbon sequestered in forests when both forest management decisions and the area of forests can be varied. Costs are estimated as welfare losses in markets

  11. Pursuing Carbon and ForestPursuing Carbon and Forest SustainabilitySustainability

    E-Print Network [OSTI]

    Brown, Sally

    Biomass Energy ProductionIn Forest Biomass Energy Production University of WashingtonCommissioner of Public Lands PeterPeter GoldmarkGoldmark''ss Forest Biomass Energy Initiative Pilot Projects 2009Pilot BioaviationBioaviation Fuel 2011Fuel 2011 #12;3 Forest Biomass Energy InitiativeForest Biomass Energy

  12. FOREST-AIR FLUXES OF CARBON, WATER AND ENERGY OVER NON-FLAT TERRAIN

    E-Print Network [OSTI]

    Lee, Xuhui

    FOREST-AIR FLUXES OF CARBON, WATER AND ENERGY OVER NON-FLAT TERRAIN XUHUI LEE and XINZHANG HU-air exchange of carbon, water, and energy was conducted at a mid-latitude, mixed forest on non-flat terrain to address this question, we conducted a field experiment on energy and carbon exchanges in a mixed forest

  13. Carbon sequestration, optimum forest rotation and their environmental impact

    SciTech Connect (OSTI)

    Kula, Erhun, E-mail: erhun.kula@bahcesehir.edu.tr [Department of Economics, Bahcesehir University, Besiktas, Istanbul (Turkey); Gunalay, Yavuz, E-mail: yavuz.gunalay@bahcesehir.edu.tr [Department of Business Studies, Bahcesehir University, Besiktas, Istanbul (Turkey)

    2012-11-15

    Due to their large biomass forests assume an important role in the global carbon cycle by moderating the greenhouse effect of atmospheric pollution. The Kyoto Protocol recognises this contribution by allocating carbon credits to countries which are able to create new forest areas. Sequestrated carbon provides an environmental benefit thus must be taken into account in cost-benefit analysis of afforestation projects. Furthermore, like timber output carbon credits are now tradable assets in the carbon exchange. By using British data, this paper looks at the issue of identifying optimum felling age by considering carbon sequestration benefits simultaneously with timber yields. The results of this analysis show that the inclusion of carbon benefits prolongs the optimum cutting age by requiring trees to stand longer in order to soak up more CO{sub 2}. Consequently this finding must be considered in any carbon accounting calculations. - Highlights: Black-Right-Pointing-Pointer Carbon sequestration in forestry is an environmental benefit. Black-Right-Pointing-Pointer It moderates the problem of global warming. Black-Right-Pointing-Pointer It prolongs the gestation period in harvesting. Black-Right-Pointing-Pointer This paper uses British data in less favoured districts for growing Sitka spruce species.

  14. Tropical forest soil microbial communities couple iron and carbon biogeochemistry

    SciTech Connect (OSTI)

    Dubinsky, E.A.; Silver, W.L.; Firestone, M.K.

    2009-10-15

    We report that iron-reducing bacteria are primary mediators of anaerobic carbon oxidation in upland tropical soils spanning a rainfall gradient (3500 - 5000 mm yr-1) in northeast Puerto Rico. The abundant rainfall and high net primary productivity of these tropical forests provide optimal soil habitat for iron-reducing and iron-oxidizing bacteria. Spatially and temporally dynamic redox conditions make iron-transforming microbial communities central to the belowground carbon cycle in these wet tropical forests. The exceedingly high abundance of iron-reducing bacteria (up to 1.2 x 10{sup 9} cells per gram soil) indicated that they possess extensive metabolic capacity to catalyze the reduction of iron minerals. In soils from the higher rainfall sites, measured rates of ferric iron reduction could account for up to 44 % of organic carbon oxidation. Iron reducers appeared to compete with methanogens when labile carbon availability was limited. We found large numbers of bacteria that oxidize reduced iron at sites with high rates of iron reduction and large numbers of iron-reducers. the coexistence of large populations of ironreducing and iron-oxidizing bacteria is evidence for rapid iron cycling between its reduced and oxidized states, and suggests that mutualistic interactions among these bacteria ultimately fuel organic carbon oxidation and inhibit CH4 production in these upland tropical forests.

  15. R E V I E W Effects of biological invasions on forest carbon

    E-Print Network [OSTI]

    R E V I E W Effects of biological invasions on forest carbon sequestration D . A . P E LT Z E R on the effects of some of the major drivers of global change on carbon (C) sequestration, particularly carbon that drive C sequestration. Keywords: biological invasion, carbon sequestration, community structure, forest

  16. Spatial and temporal patterns of carbon emissions from forest fires in China from 1950 to 2000

    E-Print Network [OSTI]

    Spatial and temporal patterns of carbon emissions from forest fires in China from 1950 to 2000 hydrocarbons) from forest fires in China for the time period from 1950 to 2000 by using a combination of remote of carbon emissions from forest fires in China from 1950 to 2000, J. Geophys. Res., 111, D05313, doi:10

  17. North America's forests are thought to be a significant sink for atmospheric carbon.

    E-Print Network [OSTI]

    Lawrence, Rick L.

    reflects the frequency of disturbance. In fact, one explanation for the forest sink in the eastern United carbon flux reflect a lack of detailed knowledge about the effects of forest disturbance and recovery highlighted forest disturbance as a critical factor constraining carbon dynamics [Wofsy and Harris, 2002

  18. Forest cover, carbon sequestration, and wildlife habitat: policy review and modeling of tradeoffs among land-use

    E-Print Network [OSTI]

    Rissman, Adena

    Forest cover, carbon sequestration, and wildlife habitat: policy review and modeling of tradeoffs and services, including timber production, carbon sequestration and storage, scenic amenities, and wildlife habitat. International efforts to mitigate climate change through forest carbon sequestration

  19. Estimation of biomass and carbon stocks: the case of the Atlantic Forest

    E-Print Network [OSTI]

    2008-01-01

    S.E. 2008. Estimation of biomass and carbon stocks: the casein Amazonian forest biomass. Global Change Biol. 10:545-562R. 2004b. Increasing biomass in Amazonian forest plots.

  20. Hurricane Katrina's Carbon Footprint on U.S. Gulf Coast Forests

    E-Print Network [OSTI]

    Chambers, Jeff

    Hurricane Katrina's Carbon Footprint on U.S. Gulf Coast Forests Jeffrey Q. Chambers,1 * Jeremy I carbon sink is an increase in disturbance frequency and intensity (4), which transfers bio- mass from and lower biomass stocks (5). Here, we quantify hurricane Katrina's carbon impact on Gulf Coast forests

  1. Forest biomes are major reserves for terrestrial carbon, and major components of global primary productivity.

    E-Print Network [OSTI]

    Malhi, Yadvinder

    (World Energy Council, Nature 390, p. 215) and increasing at a rate of about 0·1 Gt year­1 primary productivity. The carbon balance of forests is determined by a number of component processes in the carbon balance of each biome are also reviewed, and the evidence for a carbon sink in each forest biome

  2. Rehabilitation forestry and carbon market access on high-graded northern hardwood forests

    E-Print Network [OSTI]

    Keeton, William S.

    ARTICLE Rehabilitation forestry and carbon market access on high-graded northern hardwood forests for rehabilitation and increased carbon stores, yet few studies have examined the feasibility of using carbon markets to restore high-graded forests. We evaluated the effectiveness of rehabilitation on 391 ha of high

  3. R E V I E W Mineral soil carbon fluxes in forests and implications for

    E-Print Network [OSTI]

    Keeton, William S.

    R E V I E W Mineral soil carbon fluxes in forests and implications for carbon balance assessments and mitigate climate change. Large amounts of carbon (C) are stored in deep mineral forest soils, but are often not considered in accounting for global C fluxes because mineral soil C is commonly thought to be relatively

  4. Carbon Dioxide Exchange Between an Old-growth Forest and the

    E-Print Network [OSTI]

    Chen, Jiquan

    Carbon Dioxide Exchange Between an Old-growth Forest and the Atmosphere Kyaw Tha Paw U,1 * Matthias ABSTRACT Eddy-covariance and biometeorological methods show significant net annual carbon uptake in an old that old-growth forest eco- systems are in carbon equilibrium. The basis for differences between

  5. The legacy of harvest and fire on ecosystem carbon storage in a north temperate forest

    E-Print Network [OSTI]

    Curtis, Peter S.

    to store carbon (C) due to variation in disturbance frequency and intensity, successional status, soil: Disturbance effects on forest carbon storage Final Submission to Global Change Biology 1 #12;Summary1 2 3 4 5 this legacy of disturbance constrains forest carbon (C) storage rates by quantifying C pools and fluxes after

  6. Modeling Impacts of Management on Carbon Sequestration and Trace Gas Emissions in Forested

    E-Print Network [OSTI]

    Modeling Impacts of Management on Carbon Sequestration and Trace Gas Emissions in Forested Wetland-DNDC, was modified to enhance its capacity to predict the impacts of management practices on carbon sequestration nonnegligible roles in mitigation in comparison with carbon sequestration. Forests are recognized for having

  7. REGULATION OF CARBON SEQUESTRATION AND WATER USE IN A OZARK FOREST...

    Office of Scientific and Technical Information (OSTI)

    REGULATION OF CARBON SEQUESTRATION AND WATER USE IN A OZARK FOREST: PROPOSING A NEW STRATEGICALLY LOCATED AMERIFLUX TOWER SITE IN MISSOURI Pallardy, Stephen G 59 BASIC BIOLOGICAL...

  8. Seasonal patterns of forest canopy and their relevance for the global carbon cycle 

    E-Print Network [OSTI]

    Mizunuma, Toshie

    2015-06-30

    In the terrestrial biosphere forests have a significant role as a carbon sink. Under recent climate change, it is increasingly important to detect seasonal change or ‘phenology’ that can influence the global carbon cycle. ...

  9. Carbon nanotube forests growth using catalysts from atomic layer deposition

    SciTech Connect (OSTI)

    Chen, Bingan; Zhang, Can; Esconjauregui, Santiago; Xie, Rongsi; Zhong, Guofang; Robertson, John; Bhardwaj, Sunil; Cepek, Cinzia

    2014-04-14

    We have grown carbon nanotubes using Fe and Ni catalyst films deposited by atomic layer deposition. Both metals lead to catalytically active nanoparticles for growing vertically aligned nanotube forests or carbon fibres, depending on the growth conditions and whether the substrate is alumina or silica. The resulting nanotubes have narrow diameter and wall number distributions that are as narrow as those grown from sputtered catalysts. The state of the catalyst is studied by in-situ and ex-situ X-ray photoemission spectroscopy. We demonstrate multi-directional nanotube growth on a porous alumina foam coated with Fe prepared by atomic layer deposition. This deposition technique can be useful for nanotube applications in microelectronics, filter technology, and energy storage.

  10. Post-Soviet farmland abandonment, forest recovery, and carbon sequestration in western Ukraine

    E-Print Network [OSTI]

    Keeton, William S.

    Post-Soviet farmland abandonment, forest recovery, and carbon sequestration in western Ukraine T O of Forest Management, Ukrainian National Forestry University, vul. Gen. Chuprynky, 103, 79031 Lviv, Ukraine fluxes in western Ukraine (57 000 km2 ) and to assess the region's future carbon sequestration potential

  11. Seasonal controls on the exchange of carbon and water in an Amazonian rain forest

    E-Print Network [OSTI]

    Saleska, Scott

    Seasonal controls on the exchange of carbon and water in an Amazonian rain forest Lucy R. Hutyra,1 controls on the exchange of carbon and water in an Amazonian rain forest, J. Geophys. Res., 112, G03008 response to climate and weather. This study presents 4 years of eddy covariance data for CO2 and water

  12. Forest Carbon – Sustaining an Important Climate Service: Roles of Biomass Use and Markets

    Office of Energy Efficiency and Renewable Energy (EERE)

    Breakout Session 2D—Building Market Confidence and Understanding II: Carbon Accounting and Woody Biofuels Forest Carbon – Sustaining an Important Climate Service: Roles of Biomass Use and Markets David Cleaves, Climate Change Advisor to the Chief, U.S. Forest Service, U.S. Department of Agriculture

  13. O P I N I O N Biogenic vs. geologic carbon emissions and forest

    E-Print Network [OSTI]

    Keeton, William S.

    O P I N I O N Biogenic vs. geologic carbon emissions and forest biomass energy production J O H N- versities articulated a concern over equating biogenic carbon (C) emissions with fossil fuel emissions the amount of carbon in circulation. In contrast, carbon dioxide released from fossil fuels increases

  14. Do Forests Have a Say in Global Carbon Markets for Climate Stabilization Policy ? Massimo Tavoni1

    E-Print Network [OSTI]

    ., and Dev. Economics, Ohio State University While carbon sequestration was included in the Kyoto Protocol. Notwithstanding the widespread research suggesting that biological sequestration of carbon can play an important reason for the setbacks to forest sequestration regarded whether carbon sequestration would reduce carbon

  15. Interaction of ice storms and management practices on current carbon sequestration in forests with potential mitigation under future CO2

    E-Print Network [OSTI]

    Oren, Ram

    Interaction of ice storms and management practices on current carbon sequestration in forests with potential impacts on carbon sequestration. Common forest management practices, such as fertilization on current carbon sequestration in forests with potential mitigation under future CO2 atmosphere, J. Geophys

  16. Effects of afforestation and forest management on soil carbon dynamics and trace gas emissions in a Sitka spruce (Picea sitchensis (Bong) Carr.) forest 

    E-Print Network [OSTI]

    Zerva, Argyro

    The establishment and intensive management of forests for the production of timber can have significant effects on the soil carbon dynamics. The establishment of forest on organic soils under grasslands may lead to ...

  17. Carbon emissions and sequestration in forests: Case studies from seven developing countries

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. (eds.) (Lawrence Berkeley Lab., CA (United States)); Cerutti, O.M.; Ordonez, M.J.; Minjarez, R.D. (Universidad Nacional Autonoma de Mexico, Mexico City (Mexico) Centro de Ecologia)

    1992-08-01

    Estimates of carbon emissions from deforestation in Mexico are derived for the year 1985 and for two contrasting scenarios in 2025. Carbon emissions are calculated through an in-depth review of the existing information on forest cover deforestation mtes and area affected by forest fires as well as on forests' carbon-related biological characteristics. The analysis covers both tropical -- evergreen and deciduous -- and temperate -- coniferous and broadleaf -- closed forests. Emissions from the forest sector are also compared to those from energy and industry. Different policy options for promoting the sustainable management of forest resources in the country are discussed. The analysis indicates that approximately 804,000 hectares per year of closed forests suffered from major perturbations in the mid 1980's in Mexico, leading to an annual deforestation mte of 668,000 hectares. Seventy five percent of total deforestation is concentrated in tropical forests. The resulting annual carbon balance is estimated in 53.4 million tons per year, and the net committed emissions in 45.5 million tons or 41% and 38%, respectively, of the country's total for 1985--87. The annual carbon balance from the forest sector in 2025 is expected to decline to 16.5 million tons in the low emissions scenario and to 22.9 million tons in the high emissions scenario. Because of the large uncertainties in some of the primary sources of information, the stated figures should be taken as preliminary estimates.

  18. Carbon emissions and sequestration in forests: Case studies from seven developing countries. Volume 4: Mexico: Draft

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. [eds.] [Lawrence Berkeley Lab., CA (United States); Cerutti, O.M.; Ordonez, M.J.; Minjarez, R.D. [Universidad Nacional Autonoma de Mexico, Mexico City (Mexico) Centro de Ecologia

    1992-08-01

    Estimates of carbon emissions from deforestation in Mexico are derived for the year 1985 and for two contrasting scenarios in 2025. Carbon emissions are calculated through an in-depth review of the existing information on forest cover deforestation mtes and area affected by forest fires as well as on forests` carbon-related biological characteristics. The analysis covers both tropical -- evergreen and deciduous -- and temperate -- coniferous and broadleaf -- closed forests. Emissions from the forest sector are also compared to those from energy and industry. Different policy options for promoting the sustainable management of forest resources in the country are discussed. The analysis indicates that approximately 804,000 hectares per year of closed forests suffered from major perturbations in the mid 1980`s in Mexico, leading to an annual deforestation mte of 668,000 hectares. Seventy five percent of total deforestation is concentrated in tropical forests. The resulting annual carbon balance is estimated in 53.4 million tons per year, and the net committed emissions in 45.5 million tons or 41% and 38%, respectively, of the country`s total for 1985--87. The annual carbon balance from the forest sector in 2025 is expected to decline to 16.5 million tons in the low emissions scenario and to 22.9 million tons in the high emissions scenario. Because of the large uncertainties in some of the primary sources of information, the stated figures should be taken as preliminary estimates.

  19. Recovery of Soil Carbon Stocks on Disturbed Coastal Plain Soils Through Secondary Forest SuccessionPlain Soils Through Secondary Forest Succession

    E-Print Network [OSTI]

    Post, Wilfred M.

    Recovery of Soil Carbon Stocks on Disturbed Coastal Plain Soils Through Secondary Forest SuccessionPlain Soils Through Secondary Forest Succession Recovery of soil carbon stocks in historically Contact and Environmental Research 50 µm Recovery of soil carbon stocks in historically degraded soils provides a means

  20. Simulating the Impacts of Disturbances on Forest Carbon Cycling...

    Office of Scientific and Technical Information (OSTI)

    America: Processes, Data, Models, and Challenges Disturbances disrupt the forest structures and alter forest resources, substrate availability, or the physical environment....

  1. Carbon Dioxide Evolution from the Floor of Three Minnesota Forests Author(s): W. A. Reiners

    E-Print Network [OSTI]

    Thomas, David D.

    Carbon Dioxide Evolution from the Floor of Three Minnesota Forests Author(s): W. A. Reiners and extend access to Ecology. http://www.jstor.org #12;Late Spring 1968 CARBON DIOXIDE EVOLUTION RATES 471. Germination behavior of some halc- phytes. Bull. Res. Council Israel (D) 6: 187-188. CARBON DIOXIDE EVOLUTION

  2. Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach

    E-Print Network [OSTI]

    DeLucia, Evan H.

    Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion of terrestrial carbon (C) sequestration is critical for the success of any policies geared toward stabilizing. Ellsworth, A. Finzi, J. Lichter, and W. H. Schlesinger, Sustainability of terrestrial carbon sequestration

  3. Using stable isotopes to investigate interactions between the forest carbon and nitrogen cycles 

    E-Print Network [OSTI]

    Nair, Richard Kiran Francis

    2015-06-30

    Nitrogen (N) fertilization due to atmospheric deposition (NDEP ) may explain some of the net carbon (C) sink (0.6-0.7 Pg y-1) in temperate forests, but estimates of the additional C uptake due to atmospheric N additions ...

  4. Influence of stand age on the magnitude and seasonality of carbon fluxes in Canadian forests

    E-Print Network [OSTI]

    2012-01-01

    energy and water ?uxes at mature and disturbed forest sites,and energy ?uxes from a boreal mixedwood forest ecosystem inforests and the atmosphere (Baldocchi, 2008) because they provide near- continuous half-hourly time series of carbon, water, and energy

  5. Forest Sensitivity to Elevated Atmospheric CO2 and its Relevance to Carbon Management Richard J. Norby

    E-Print Network [OSTI]

    the airborne fraction of CO2 from fossil fuel combustion, and, therefore, the rate of increase of CO2Forest Sensitivity to Elevated Atmospheric CO2 and its Relevance to Carbon Management Richard J the responses of forest trees to rising concentrations of atmospheric CO2 has for the past two decades been

  6. Carbon NanoFiber Systems for Tissue Interfacing - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon capture faqsCarbonProcess for itsAdvanced

  7. Mineralization of ancient carbon in the subsurface of riparian forests Noel P. Gurwick,1,2

    E-Print Network [OSTI]

    Gold, Art

    Mineralization of ancient carbon in the subsurface of riparian forests Noel P. Gurwick,1,2 Daniel M C mineralization rates can support ecosystem-relevant rates of denitrification. Buried horizons and 14 C dating of dissolved inorganic carbon revealed that ancient SOC mineralization was common

  8. Warming accelerates decomposition of decades-old carbon in forest soils

    E-Print Network [OSTI]

    (received for review January 10, 2012) Global climate carbon-cycle models predict acceleration of soilWarming accelerates decomposition of decades-old carbon in forest soils Francesca M. Hopkinsa,b,1, CA 94720; and d Energy and Resources Group, University of California, Berkeley, CA 94720 Edited

  9. Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru

    SciTech Connect (OSTI)

    Patrick Gonzalez; Benjamin Kroll; Carlos R. Vargas

    2006-01-10

    Conversion of tropical forest to agricultural land and pasture has reduced forest extent and the provision of ecosystem services, including watershed protection, biodiversity conservation, and carbon sequestration. Forest conservation and reforestation can restore those ecosystem services. We have assessed forest species patterns, quantified deforestation and reforestation rates, and projected future baseline carbon emissions and removal in Amazon tropical rainforest at La Selva Central, Peru. The research area is a 4800 km{sup 2} buffer zone around the Parque Nacional Yanachaga-Chemillen, Bosque de Proteccion San Matias-San Carlos, and the Reserva Comunal Yanesha. A planned project for the period 2006-2035 would conserve 4000 ha of forest in a proposed 7000 ha Area de Conservacion Municipale de Chontabamba and establish 5600 ha of natural regeneration and 1400 ha of native species plantations, laid out in fajas de enriquecimiento (contour plantings), to reforest 7000 ha of agricultural land. Forest inventories of seven sites covering 22.6 ha in primary forest and 17 sites covering 16.5 ha in secondary forest measured 17,073 trees of diameter {ge} 10 cm. The 24 sites host trees of 512 species, 267 genera, and 69 families. We could not identify the family of 7% of the trees or the scientific species of 21% of the trees. Species richness is 346 in primary forest and 257 in the secondary forest. In primary forest, 90% of aboveground biomass resides in old-growth species. Conversely, in secondary forest, 66% of aboveground biomass rests in successional species. The density of trees of diameter {ge} 10 cm is 366 trees ha{sup -1} in primary forest and 533 trees ha{sup -1} in secondary forest, although the average diameter is 24 {+-} 15 cm in primary forest and 17 {+-} 8 cm in secondary forest. Using Amazon forest biomass equations and wood densities for 117 species, aboveground biomass is 240 {+-} 30 t ha{sup -1} in the primary sites and 90 {+-} 10 t ha{sup -1} in the secondary sites. Aboveground carbon density is 120 {+-} 15 t ha{sup -1} in primary forest and 40 {+-} 5 t ha{sup -1} in secondary forest. Forest stands in the secondary forest sites range in age from 10 to 42 y. Growth in biomass (t ha{sup -1}) as a function of time (y) follows the relation: biomass = 4.09-0.017 age{sup 2} (p < 0.001). Aboveground biomass and forest species richness are positively correlated (r{sup 2} = 0.59, p < 0.001). Analyses of Landsat data show that the land cover of the 3700 km{sup 2} of non-cloud areas in 1999 was: closed forest 78%; open forest 12%, low vegetation cover 4%, sparse vegetation cover 6%. Deforestation from 1987 to 1999 claimed a net 200 km{sup 2} of forest, proceeding at a rate of 0.005 y{sup -1}. Of those areas of closed forest in 1987, only 89% remained closed forest in 1999. Consequently, closed forests experienced disruption in the time period at double the rate of net deforestation. The three protected areas experienced negligible deforestation or slight reforestation. Based on 1987 forest cover, 26,000 ha are eligible for forest carbon trading under the Clean Development Mechanism, established by the Kyoto Protocol to the United Nations Framework Convention on Climate Change. Principal components analysis showed that distance to nonforest was the factor that best explained observed patterns of deforestation while distance to forest best explained observed patterns of reforestation, more significant than elevation, distance to rivers, distance to roads, slope, and distance to towns of population > 400. Aboveground carbon in live vegetation in the project area decreased from 35 million {+-} 4 million t in 1987 to 34 million {+-} 4 million t in 1999. Projected aboveground carbon in live vegetation would fall to 33 million {+-} 4 million t in 2006, 32 million {+-} 4 million t in 2011, and 29 million {+-} 3 million t in 2035. Projected net deforestation in the research area would total 13,000 {+-} 3000 ha in the period 1999-2011, proceeding at a rate of 0.003 {+-} 0.0007 y{sup -1}, and would total 33,000 {+-} 7000

  10. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    First Update to the Climate Change Scoping Plan: Building onManaging forests for climate change mitigation. Science 320:IPCC] Intergovernmental Panel on Climate Change. 2006. IPCC

  11. Portal Technology

    E-Print Network [OSTI]

    Warner, Beth Forrest

    2002-03-27

    Portal Technology Beth Forrest Warner Director, KU Digital Library Initiatives bwarner@ku.edu PUAD 839 March 27, 2002 Defining the issue… Today’s government agencies at all levels should note that the citizens they serve are “little concerned... their citizens’ perspectives. Instead of launching online services on a department-by-department basis, they are aggregating services across departments, accessible through a common portal.” (Janet Caldow, “The Quest for Electronic Government: A Defining...

  12. Evaluating the Contribution of Climate Forcing and Forest Dynamics to Accelerating Carbon Sequestration by Forest Ecosystems in the Northeastern U.S.: Final Report

    SciTech Connect (OSTI)

    Munger, J. William; Foster, David R.; Richardson, Andrew D.

    2014-10-01

    This report summarizes work to improve quantitative understanding of the terrestrial ecosystem processes that control carbon sequestration in unmanaged forests It builds upon the comprehensive long-term observations of CO2 fluxes, climate and forest structure and function at the Harvard Forest in Petersham, MA. This record includes the longest CO2 flux time series in the world. The site is a keystone for the AmeriFlux network. Project Description The project synthesizes observations made at the Harvard Forest HFEMS and Hemlock towers, which represent the dominant mixed deciduous and coniferous forest types in the northeastern United States. The 20+ year record of carbon uptake at Harvard Forest and the associated comprehensive meteorological and biometric data, comprise one of the best data sets to challenge ecosystem models on time scales spanning hourly, daily, monthly, interannual and multi-decadal intervals, as needed to understand ecosystem change and climate feedbacks.

  13. Subalpine Forest Carbon Cycling Short- and Long-Term Influence ofClimate and Species

    SciTech Connect (OSTI)

    Kueppers, L.; Harte, J.

    2005-08-23

    Ecosystem carbon cycle feedbacks to climate change comprise one of the largest remaining sources of uncertainty in global model predictions of future climate. Both direct climate effects on carbon cycling and indirect effects via climate-induced shifts in species composition may alter ecosystem carbon balance over the long term. In the short term, climate effects on carbon cycling may be mediated by ecosystem species composition. We used an elevational climate and tree species composition gradient in Rocky Mountain subalpine forest to quantify the sensitivity of all major ecosystem carbon stocks and fluxes to these factors. The climate sensitivities of carbon fluxes were species-specific in the cases of relative above ground productivity and litter decomposition, whereas the climate sensitivity of dead wood decay did not differ between species, and total annual soil CO2 flux showed no strong climate trend. Lodge pole pine relative productivity increased with warmer temperatures and earlier snowmelt, while Engelmann spruce relative productivity was insensitive to climate variables. Engelmann spruce needle decomposition decreased linearly with increasing temperature(decreasing litter moisture), while lodgepole pine and subalpine fir needle decay showed a hump-shaped temperature response. We also found that total ecosystem carbon declined by 50 percent with a 2.88C increase in mean annual temperature and a concurrent 63 percent decrease ingrowing season soil moisture, primarily due to large declines in mineral soil and dead wood carbon. We detected no independent effect of species composition on ecosystem C stocks. Overall, our carbon flux results suggest that, in the short term, any change in subalpine forest net carbon balance will depend on the specific climate scenario and spatial distribution of tree species. Over the long term, our carbon stock results suggest that with regional warming and drying, Rocky Mountain subalpine forest will be a net source of carbon to the atmosphere.

  14. R E V I E W Liana Impacts on Carbon Cycling, Storage and Sequestration in Tropical Forests

    E-Print Network [OSTI]

    Schnitzer, Stefan

    R E V I E W Liana Impacts on Carbon Cycling, Storage and Sequestration in Tropical Forests Geertje for carbon storage and sequestration. Lianas reduce tree growth, survival, and leaf productivity; however liana carbon stocks are unlikely to compensate for liana-induced losses in net carbon sequestration

  15. ESTIMATION OF FOREST CARBON VOLUME AND VALUE IN TENNESSEE

    E-Print Network [OSTI]

    Gray, Matthew

    simulation methods ¨Assess alternative management scenarios Photo Citation ¨ http://www.icis.com/energy to Sequester Carbon and Mitigate The Greenhouse Effect, eds. pp. 34­45, New York: CRC Press. ¨ Hoover, C. M., S the Economic Potential of Forestry for Carbon Sequestration under Alternative Carbon Price Paths." Journal

  16. Current and Future Carbon Budgets of Tropical Rain Forest: A Cross Scale Analysis. Final Report

    SciTech Connect (OSTI)

    Oberbauer, S. F.

    2004-01-16

    The goal of this project was to make a first assessment of the major carbon stocks and fluxes and their climatic determinants in a lowland neotropical rain forest, the La Selva Biological Station, Costa Rica. Our research design was based on the concurrent use of several of the best available approaches, so that data could be cross-validated. A major focus of our effort was to combine meteorological studies of whole-forest carbon exchange (eddy flux), with parallel independent measurements of key components of the forest carbon budget. The eddy flux system operated from February 1998 to February 2001. To obtain field data that could be scaled up to the landscape level, we monitored carbon stocks, net primary productivity components including tree growth and mortality, litterfall, woody debris production, root biomass, and soil respiration in a series of replicated plots stratified across the major environmental gradients of the forest. A second major focus of this project was on the stocks and changes of carbon in the soil. We used isotope studies and intensive monitoring to investigate soil organic stocks and the climate-driven variation of soil respiration down the soil profile, in a set of six 4m deep soil shafts stratified across the landscape. We measured short term tree growth, climate responses of sap flow, and phenology in a suite of ten canopy trees to develop individual models of tree growth to daytime weather variables.

  17. Carbon flows and economic evaluation of mitigation options in Tanzani's forest sector

    SciTech Connect (OSTI)

    Makundi, W.R.; Okinting'Ati, Aku

    1995-02-02

    This paper presents estimates of the rate of forest use, deforestation and forest degradation, as well as the corresponding carbon flows, in the Tanzanian forest sector. It is estimated that the country lost 525,000 ha of forests in 1990, with associated committed emissions of 31.5 Mt. Carbon (MtC), and 7.05 MtC of committed carbon sequestration. The paper then describes the possible response options in the forest sector to mitigate GHG emissions, and evaluates the most stable subset of these-i.e. forest conservation, woodfuel plantations and agroforestry. The conservation options were found to cost an average of U.S. $1.27 per tonne of carbon (tC) conserved. Five options for fuelwood plantations and agroforestry, with two different ownership regimes were evaluated. Each one of the options gives a positive net present value at low rates of discount, ranging from U.S. $1.06 to 3.4/1C of avoided emissions at 0 percent discount rate. At 10 percent discount, the eucalyptus and maize option has a highest PNV of U.S. $1.73 tC, and the government plantation gives a negative PNV (loss) of U.S. $0.13 tC sequestered. The options with a private/community type of ownership scheme fared better than government run options. This conclusion also held true when ranking the options by the BRAC indicator, with the government fuelwood plantation ranked the lowest, and the private agroforestry option of eucalyptus and corn performing best. The mitigation options evaluated here show that the forest sector in Tanzania has one of the most cost-effective GHG mitigation opportunities in the world, and they are within the developmental aspirations of the country.

  18. Manufacturing Energy and Carbon Footprint - Sector: Forest Products...

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

    Electricity Export 31 Combustion Emissions (MMT CO 2 e Million Metric Tons Carbon Dioxide Equivalent) Total Emissions Offsite Emissions + Onsite Emissions Energy (TBtu ...

  19. Continuous Growth of Vertically Aligned Carbon Nanotubes Forests

    E-Print Network [OSTI]

    Guzman de Villoria, Roberto

    Vertically aligned carbon nanotubes are one of the most promising materials due their numerous applications in flexible electronic devices, biosensors and multifunctional aircraft materials, among others. However, the ...

  20. Carbon balance of coniferous forests growing in contrasting climates: Model-based analysis

    E-Print Network [OSTI]

    to understand why carbon balance (or net ecosystem production, NEP) differs among forests. Here, we use-site differences in gross primary productivity (GPP), ecosystem respiration (RE) and NEP. The most important factor physiology on NEP were secondary, but still substantial. The work provides detailed quantitative evidence

  1. Ecosystem Carbon Storage Across the GrasslandForest Transition

    E-Print Network [OSTI]

    Silman, Miles R.

    of the large soil carbon stocks under an afforestation scenario exist. Key words: Peru; Manu National Park, JBF, and PM conceived of or designed this study; AG, MRS, MZ, GCD, WRF, and KCG performed re- search in the newly created carbon markets and funds (Glenday 2006). Similarly, the size and dynamics of the above

  2. Ecosystem Carbon Storage Across the GrasslandForest Transition

    E-Print Network [OSTI]

    Malhi, Yadvinder

    of the large soil carbon stocks under an afforestation scenario exist. Key words: Peru; Manu National Park 2010 Author Contributions: AG, MRS, YM, JBF, and PM conceived of or designed this study; AG, MRS, MZ in the newly created carbon markets and funds (Glenday 2006). Similarly, the size and dynamics of the above

  3. Research Article Airborne carbon deposition on a remote forested lake

    E-Print Network [OSTI]

    Pace, Michael L.

    allochthonous carbon sources and food webs (Cole et al., 2006). There are numerous pathways for terrestrial inputs of terrestrial particulate organic carbon (TPOC) were measured during summ- er stratification of TPOC were between 6:1 and 22:1 (molar), much lower than the values for terrestrial leaves which were

  4. PUBLISHED ONLINE: 3 APRIL 2011 | DOI: 10.1038/NGEO1123 Mangroves among the most carbon-rich forests in

    E-Print Network [OSTI]

    Turner, Monica G.

    ­20% of global anthropogenic carbon dioxide (CO2) emissions, second only to fossil fuel combustion7,8 . Recent of coastal development, aqua- culture expansion and over-harvesting1­4 . Carbon emissions resulting from and dead wood biomass, soil carbon content, and soil depth in 25 mangrove forests across a broad area

  5. State of the Forest Carbon Markets 2009 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbHSoloPage EditStamford,EnergyFarm InsuranceForest

  6. Potential and cost of carbon sequestration in the Tanzanian forest sector

    SciTech Connect (OSTI)

    Makundi, Willy R.

    2001-01-01

    The forest sector in Tanzania offers ample opportunities to reduce greenhouse gas emissions (GHG) and sequestered carbon (C) in terrestrial ecosystems. More than 90% of the country's demand for primary energy is obtained from biomass mostly procured unsustainably from natural forests. This study examines the potential to sequester C through expansion of forest plantations aimed at reducing the dependence on natural forest for wood fuel production, as well as increase the country's output of industrial wood from plantations. These were compared ton conservation options in the tropical and miombo ecosystems. Three sequestration options were analyzed, involving the establishment of short rotation and long rotation plantations on about 1.7 x 106 hectares. The short rotation community forest option has a potential to sequester an equilibrium amount of 197.4 x 106 Mg C by 2024 at a net benefit of $79.5 x 106, while yielding a NPV of $0.46 Mg-1 C. The long rotation options for softwood and hardwood plantations will reach an equilibrium sequestration of 5.6 and 11.8 x 106 Mg C at a negative NPV of $0.60 Mg-1 C and $0.32 Mg-1 C. The three options provide cost competitive opportunities for sequestering about 7.5 x 106 Mg C yr -1 while providing desired forest products and easing the pressure on the natural forests in Tanzania. The endowment costs of the sequestration options were all found to be cheaper than the emission avoidance cost for conservation options which had an average cost of $1.27 Mg-1 C, rising to $ 7.5 Mg-1 C under some assumptions on vulnerability to encroachment. The estimates shown here may represent the upper bound, because the actual potential will be influenced by market prices for inputs and forest products, land use policy constraints and the structure of global C transactions.

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

    SciTech Connect (OSTI)

    J. Burger; J. Galbraith; T. Fox; G. Amacher; J. Sullivan; C. Zipper

    2003-12-18

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. In this quarterly report, we present a preliminary comparison of the carbon sequestration benefits for two forest types used to convert abandoned grasslands for carbon sequestration. Annual mixed hardwood benefits, based on total stand carbon volume present at the end of a given year, range from a minimum of $0/ton of carbon to a maximum of $5.26/ton of carbon (low prices). White pine benefits based on carbon volume range from a minimum of $0/ton of carbon to a maximum of $18.61/ton of carbon (high prices). The higher maximum white pine carbon payment can primarily be attributed to the fact that the shorter rotation means that payments for white pine carbon are being made on far less cumulative carbon tonnage than for that of the long-rotation hardwoods. Therefore, the payment per ton of white pine carbon needs to be higher than that of the hardwoods in order to render the conversion to white pine profitable by the end of a rotation. These carbon payments may seem appealingly low to the incentive provider. However, payments (not discounted) made over a full rotation may add up to approximately $17,493/ha for white pine (30-year rotation), and $18,820/ha for mixed hardwoods (60-year rotation). The literature suggests a range of carbon sequestration costs, from $0/ton of carbon to $120/ton of carbon, although the majority of studies suggest a cost below $50/ ton of carbon, with van Kooten et al. (2000) suggesting a cutoff cost of $20/ton of carbon sequestered. Thus, the ranges of carbon payments estimated for this study fall well within the ranges of carbon sequestration costs estimated in previous studies.

  8. Application of Remote Sensing Technology and Ecological Modeling of Forest Carbon Stocks in Mt. Apo Natural Park, Philippines 

    E-Print Network [OSTI]

    Leal, Ligaya Rubas

    2015-01-23

    This dissertation work explored the application of remote sensing technology for the assessment of forest carbon storage in Mt. Apo Natural Park. Biomass estimation is traditionally conducted using destructive sampling with high levels...

  9. Agricultural and Forest Meteorology 115 (2003) 91107 Post-fire carbon dioxide fluxes in the western Canadian boreal

    E-Print Network [OSTI]

    Nassar, Ray

    2003-01-01

    Agricultural and Forest Meteorology 115 (2003) 91­107 Post-fire carbon dioxide fluxes in the western Canadian boreal forest: evidence from towers, aircraft and remote sensing Brian D. Amiroa,, J. Ian ecosystem exchange by eddy covariance) and remote sens- ing/modeling (net primary productivity

  10. JOURNAL OF NATURAL RESOURCES & LIFE SCIENCES EDUCATION VOLUME 38 2009 87 exceeds the harvesting rate, forest carbon uptake during

    E-Print Network [OSTI]

    Grogan, Paul

    , and lifestyle/ social dimensions. For example, is an energy-efficient hybrid car (with regenerative braking the harvesting rate, forest carbon uptake during growth of new trees in the harvested forest or woodlot offsets, Increasing energy costs as well as concerns about climate change associated with fossil fuel use have

  11. Renewal of Collaborative Research: Economically viable Forest Harvesting Practices that Increase Carbon Sequestration

    SciTech Connect (OSTI)

    Dail, David Bryan

    2012-08-02

    This technical report covers a 3-year cooperative agreement between the University of Maine and the Northeastern Forest Experiment Station that focused on the characterization of forest stands and the assessment of forest carbon storage (see attached for detailed description of the project). The goal of this work was to compare estimates of forest C storage made via remeasurement of FIA-type plots with eddy flux measurements. In addition to relating whole ecosystem estimates of carbon storage to changes in aboveground biomass, we explored methodologies by partitioning growth estimates from periodic inventory measurements into annual estimates. In the final year, we remeasured plots that were subject to a shelterwood harvest over the winter of 2001-02 to assess the production of coarse woody debris by this harvest, to remeasure trees in a long-term stand first established by NASA, to carry out other field activities at Howland, and, to assess the importance of downed and decaying wood as well as standing dead trees to the C inputs to harvested and non harvested plots.

  12. Renewal of Collaborative Research: Economically Viable Forest Harvesting Practices That Increase Carbon Sequestration

    SciTech Connect (OSTI)

    Davidson, E.A.; Dail, D.B., Hollinger, D.; Scott, N.; Richardson, A.

    2012-08-02

    Forests provide wildlife habitat, water and air purification, climate moderation, and timber and nontimber products. Concern about climate change has put forests in the limelight as sinks of atmospheric carbon. The C stored in the global vegetation, mostly in forests, is nearly equivalent to the amount present in atmospheric CO{sub 2}. Both voluntary and government-mandated carbon trading markets are being developed and debated, some of which include C sequestration resulting from forest management as a possible tradeable commodity. However, uncertainties regarding sources of variation in sequestration rates, validation, and leakage remain significant challenges for devising strategies to include forest management in C markets. Hence, the need for scientifically-based information on C sequestration by forest management has never been greater. The consequences of forest management on the US carbon budget are large, because about two-thirds of the {approx}300 million hectare US forest resource is classified as 'commercial forest.' In most C accounting budgets, forest harvesting is usually considered to cause a net release of C from the terrestrial biosphere to the atmosphere. However, forest management practices could be designed to meet the multiple goals of providing wood and paper products, creating economic returns from natural resources, while sequestering C from the atmosphere. The shelterwood harvest strategy, which removes about 30% of the basal area of the overstory trees in each of three successive harvests spread out over thirty years as part of a stand rotation of 60-100 years, may improve net C sequestration compared to clear-cutting because: (1) the average C stored on the land surface over a rotation increases, (2) harvesting only overstory trees means that a larger fraction of the harvested logs can be used for long-lived sawtimber products, compared to more pulp resulting from clearcutting, (3) the shelterwood cut encourages growth of subcanopy trees by opening up the forest canopy to increasing light penetration. Decomposition of onsite harvest slash and of wastes created during timber processing releases CO{sub 2} to the atmosphere, thus offsetting some of the C sequestered in vegetation. Decomposition of soil C and dead roots may also be temporarily stimulated by increased light penetration and warming of the forest floor. Quantification of these processes and their net effect is needed. We began studying C sequestration in a planned shelterwood harvest at the Howland Forest in central Maine in 2000. The harvest took place in 2002 by the International Paper Corporation, who assisted us to track the fates of harvest products (Scott et al., 2004, Environmental Management 33: S9-S22). Here we present the results of intensive on-site studies of the decay of harvest slash, soil respiration, growth of the remaining trees, and net ecosystem exchange (NEE) of CO{sub 2} during the first six years following the harvest. These results are combined with calculations of C in persisting off-site harvest products to estimate the net C consequences to date of this commercial shelterwood harvest operation. Tower-based eddy covariance is an ideal method for this study, as it integrates all C fluxes in and out of the forest over a large 'footprint' area and can reveal how the net C flux, as well as gross primary productivity and respiration, change following harvest. Because the size of this experiment precludes large-scale replication, we are use a paired-airshed approach, similar to classic large-scale paired watershed experiments. Measurements of biomass and C fluxes in control and treatment stands were compared during a pre-treatment calibration period, and then divergence from pre-treatment relationships between the two sites measured after the harvest treatment. Forests store carbon (C) as they accumulate biomass. Many forests are also commercial sources of timber and wood fiber. In most C accounting budgets, forest harvesting is usually considered to cause a net release of C from the terrestrial biosphere to the at

  13. How surface fire in Siberian Scots pine forests affects soil organic carbon in the forest floor: Stocks, molecular structure, and conversion to black carbon (charcoal)

    E-Print Network [OSTI]

    Czimczik, Claudia I; Preston, Caroline M; Schmidt, Michael W. I; Schulze, Ernst-Detlef

    2003-01-01

    Ecological effects of forest fires, Bot. Rev. , 26, 483 –1 ] In boreal forests, fire is a frequent disturbance andal. , 1999]. Risk of forest fires was high during the entire

  14. Final Technical Report Interannual Variations in the Rate of Carbon Storage by a Mid-Latitude Forest

    SciTech Connect (OSTI)

    Wofsy, Steven; Munger, J W

    2012-07-31

    The time series of Net Ecosystem Exchange (NEE) of carbon by an entire forest ecosystem on time scales from hourly to decadal was measured by eddy-covariance supplemented with plot-level measurements of biomass and tree demography. The results demonstrate the response of forest carbon fluxes and long-term budgets to climatic factors and to successional change. The data from this project have been extensively used worldwide by the carbon cycle science community in support of model development and validation of remote sensing observations.

  15. OAK FOREST CARBON AND WATER SIMULATIONS: MODEL INTERCOMPARISONS AND EVALUATIONS AGAINST INDEPENDENT DATA

    SciTech Connect (OSTI)

    Hanson, Paul J; Amthor, Jeffrey S; Wullschleger, Stan D; Wilson, K.; Grant, Robert F.; Hartley, Anne; Hui, D.; HuntJr., E. Raymond; Johnson, Dale W.; Kimball, John S.; King, Anthony Wayne; Luo, Yiqi; McNulty, Steven G.; Sun, G.; Thornton, Peter; Wang, S.; Williams, M.; Baldocchi, D. D.; Cushman, Robert Michael

    2004-01-01

    Models represent our primary method for integration of small-scale, processlevel phenomena into a comprehensive description of forest-stand or ecosystem function. They also represent a key method for testing hypotheses about the response of forest ecosystems to multiple changing environmental conditions. This paper describes the evaluation of 13 stand-level models varying in their spatial, mechanistic, and temporal complexity for their ability to capture intra- and interannual components of the water and carbon cycle for an upland, oak-dominated forest of eastern Tennessee. Comparisons between model simulations and observations were conducted for hourly, daily, and annual time steps. Data for the comparisons were obtained from a wide range of methods including: eddy covariance, sapflow, chamber-based soil respiration, biometric estimates of stand-level net primary production and growth, and soil water content by time or frequency domain reflectometry. Response surfaces of carbon and water flux as a function of environmental drivers, and a variety of goodness-of-fit statistics (bias, absolute bias, and model efficiency) were used to judge model performance. A single model did not consistently perform the best at all time steps or for all variables considered. Intermodel comparisons showed good agreement for water cycle fluxes, but considerable disagreement among models for predicted carbon fluxes. The mean of all model outputs, however, was nearly always the best fit to the observations. Not surprisingly, models missing key forest components or processes, such as roots or modeled soil water content, were unable to provide accurate predictions of ecosystem responses to short-term drought phenomenon. Nevertheless, an inability to correctly capture short-term physiological processes under drought was not necessarily an indicator of poor annual water and carbon budget simulations. This is possible because droughts in the subject ecosystem were of short duration and therefore had a small cumulative impact. Models using hourly time steps and detailed mechanistic processes, and having a realistic spatial representation of the forest ecosystem provided the best predictions of observed data. Predictive ability of all models deteriorated under drought conditions, suggesting that further work is needed to evaluate and improve ecosystem model performance under unusual conditions, such as drought, that are a common focus of environmental change discussions.

  16. I N F O R M A T I O N N O T E Forests, Carbon and

    E-Print Network [OSTI]

    start with an overview of global climate change and greenhouse gas (GHG) emissions. Carbon dioxide (CO2 W A N D R O B E R T M A T T H E W S O F F O R E S T R E S E A R C H FORESTS, CARBON DIOXIDE the concentrations of GHGs in the atmosphere are rising. Carbon dioxide is the most important contributor

  17. Job Application Portal Manual for the Job Application Portal

    E-Print Network [OSTI]

    Job Application Portal Manual for the Job Application Portal in the University of Gothenburg e Portal...................................................................... 3 Creating a new account.............................................................................................................................................. 10 #12;The University of Gothenburg 3/10 The University of Gothenburg's Job Application Portal

  18. Portal radiation monitor

    DOE Patents [OSTI]

    Kruse, L.W.

    1982-03-23

    A portal radiation monitor combines .1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

  19. Portal radiation monitor

    DOE Patents [OSTI]

    Kruse, Lyle W. (Albuquerque, NM)

    1985-01-01

    A portal radiation monitor combines 0.1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

  20. Department Head Resource Portal

    E-Print Network [OSTI]

    Salvaggio, Carl

    1 Department Head Resource Portal CREATING DEPARTMENT GOALS A goal is a condition we envision;2 Department Head Resource Portal NO DO YOU HAVE IT? YES ffff Achieve Preserve Avoid Eliminate NO DO YOU HAVE

  1. Ecosystem-Atmosphere Exchange of Carbon, Water and Energy over a Mixed Deciduous Forest in the Midwest

    SciTech Connect (OSTI)

    Danilo Dragoni; Hans Peter Schmid; C.S.B. Grimmond; J.C. Randolph; J.R. White

    2012-12-17

    During the project period we continued to conduct long-term (multi-year) measurements, analysis, and modeling of energy and mass exchange in and over a deciduous forest in the Midwestern United States, to enhance the understanding of soil-vegetation-atmosphere exchange of carbon. At the time when this report was prepared, results from nine years of measurements (1998 - 2006) of above canopy CO2 and energy fluxes at the AmeriFlux site in the Morgan-Monroe State Forest, Indiana, USA (see Table 1), were available on the Fluxnet database, and the hourly CO2 fluxes for 2007 are presented here (see Figure 1). The annual sequestration of atmospheric carbon by the forest is determined to be between 240 and 420 g C m-2 a-1 for the first ten years. These estimates are based on eddy covariance measurements above the forest, with a gap-filling scheme based on soil temperature and photosynthetically active radiation. Data gaps result from missing data or measurements that were rejected in qua)lity control (e.g., during calm nights). Complementary measurements of ecological variables (i.e. inventory method), provided an alternative method to quantify net carbon uptake by the forest, partition carbon allocation in each ecosystem components, and reduce uncertainty on annual net ecosystem productivity (NEP). Biometric datasets are available on the Fluxnext database since 1998 (with the exclusion of 2006). Analysis for year 2007 is under completion.

  2. Jointly Estimating Carbon Sequestration Supply from Forests and Agriculture Bruce A. McCarl (mccarl@tamu.edu, 979-845-1706)

    E-Print Network [OSTI]

    McCarl, Bruce A.

    Jointly Estimating Carbon Sequestration Supply from Forests and Agriculture Bruce A. McCarl (mccarl at Western Economics Association Meetings, July 5-8, 2001, San Francisco #12;2 Jointly Estimating Carbon Sequestration Supply from Forests and Agriculture Alterations in agricultural and forestry (AF) land use and

  3. Relative Content of Black Carbon in Submicron Aerosol as a Sign of the Effect of Forest Fire Smokes

    SciTech Connect (OSTI)

    Kozlov, V.S.; Panchenko, M.V.; Yauscheva, E.P.

    2005-03-18

    Biomass burning occurs often in regions containing vast forest tracts and peat-bogs. These processes are accompanied by the emission of a large amount of aerosol particles and crystal carbon (black carbon [BC], soot). BC is the predominant source of solar absorption in atmospheric aerosol, which impacts climate. (Jacobson 2001; Rozenberg 1982). In this paper, we analyze the results of laboratory and field investigations that focused on the relative content of BC in aerosol particles. Main attention is given to the study of possibility using this parameter as an informative sign for estimating the effect of remote forest fire smokes on the near-ground aerosol composition.

  4. Department Head Resource Portal

    E-Print Network [OSTI]

    Salvaggio, Carl

    1 Department Head Resource Portal NEW EMPLOYEE CHECKLIST New Staff Member Name: Department: Start Appearance expectations (e.g., business casual) #12;2 Department Head Resource Portal First Day Prep://myinfo.rit.edu (pay stub, benefits info, emergency contact, etc) Emergency exits #12;3 Department Head Resource Portal

  5. TROBEXIS / AMADEUS Travel Portal

    E-Print Network [OSTI]

    Fleming, Andrew J.

    TROBEXIS / AMADEUS Quick Reference Guides ­ Travel Portal University of Newcastle September 2014 #12;Available Quick Reference Guides - 1. Travel Portal Overview 3 2. Trobexis Overview 4 3 of Newcastle - Travel Portal Trobexis.com © 2010 Evolving Spaces (VIC) Pty Ltd and Amadeus IT Group S.A. P a g

  6. Estimating Carbon Supply Curves for Global Forests and Other Land Uses April 2001, Discussion Paper 01-19

    SciTech Connect (OSTI)

    Sedjo, Roger; Sohngen, Brent; Mendelsohn, Robert

    2001-04-05

    This study develops cumulative carbon ''supply curves'' for global forests utilizing a dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and particular time points within that century, the curves are not traditional Marshallian supply curves or steady-state supply curves. Rather, the focus is on cumulative carbon cost curves (quasi-supply curves) at various points in time over the next 100 years. The research estimates a number of long-term, cumulative, carbon quasi-supply curves under different price scenarios and for different time periods. The curves trace out the relationship between an intertemporal price path for carbon, as given by carbon shadow prices, and the cumulative carbon sequestered from the initiation of the shadow prices, set at 2000, to a selected future year (2010, 2050, 2100). The timber supply model demonstrates that cumulative carbon quasi-supply curves that can be generated through forestry significantly depend on initial carbon prices and expectations regarding the time profile of future carbon prices. Furthermore, long-run quasi-supply curves generated from a constant price will have somewhat different characteristics from quasi-supply curves generated with an expectation of rising carbon prices through time.The ?least-cost? curves vary the time periods under consideration and the time profile of carbon prices. The quasi-supply curves suggest that a policy of gradually increasing carbon prices will generate the least costly supply curves in the shorter periods of a decade or so. Over longer periods of time, however, such as 50 or 100 years, these advantages appear to dissipate.

  7. Ecosystem carbon dioxide fluxes after disturbance in forests of North America

    E-Print Network [OSTI]

    2010-01-01

    2006), The impact of boreal forest fire on climate warming,J. , et al. (2003), Large forest fires in Canada, 1959–1997,2003; U.S. National Interagency Forest Fire Centre, http://

  8. Has fire suppression increased the amount of carbon stored in western U.S. forests?

    E-Print Network [OSTI]

    Fellows, Aaron W.; Goulden, Michael L.

    2008-01-01

    precipitation (MAP), forest type, and fire regime. [ 7 ] Thein mid-elevation conifer forests, where fire suppression is20th century fire suppression in western US forests, and a

  9. Exposure to an enriched CO2 atmosphere alters carbon assimilation and allocation in a pine forest ecosystem

    E-Print Network [OSTI]

    Oren, Ram

    to reduce the rate at which atmospheric CO2 increases, the Kyoto Protocol has transformed CO2 emissions in a future CO2-enriched world is even greater (Houghton, 1997). For example, despite some downExposure to an enriched CO2 atmosphere alters carbon assimilation and allocation in a pine forest

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

    SciTech Connect (OSTI)

    James A. Burger; J. Galbraith; T. Fox; G. Amacher; J. Sullivan; C. Zipper

    2005-06-08

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. We are currently estimating the acreage of lands in VA, WV, KY, OH, and PA mined under SMCRA and reclaimed to non-forested post-mining land uses that are not currently under active management, and therefore can be considered as available for carbon sequestration. To determine actual sequestration under different forest management scenarios, a field study was installed as a 3 x 3 factorial in a random complete block design with three replications at each of three locations, Ohio, West Virginia, and Virginia. The treatments included three forest types (white pine, hybrid poplar, mixed hardwood) and three silvicultural regimes (competition control, competition control plus tillage, competition control plus tillage plus fertilization). Each individual treatment plot is 0.5 acres. Each block of nine plots is 4.5 acres, and the complete installation at each site is 13.5 acres. During the reporting period we compiled and evaluated all soil properties measured on the study sites. Statistical analysis of the properties was conducted, and first year survival and growth of white pine, hybrid poplars, and native hardwoods was assessed. Hardwood species survived better at all sites than white pine or hybrid poplar. Hardwood survival across treatments was 80%, 85%, and 50% for sites in Virginia, West Virginia, and Ohio, respectively, while white pine survival was 27%, 41%, and 58%, and hybrid poplar survival was 37%, 41%, and 72% for the same sites, respectively. Hybrid poplar height and diameter growth were superior to those of the other species tested, with the height growth of this species reaching 126.6cm after one year in the most intensive treatment at the site in Virginia. To determine carbon in soils on these sites, we developed a cost-effective method for partitioning total soil carbon to pedogenic carbon and geogenic carbon in mine soils. We are in the process of evaluating the accuracy and precision of the proposed carbon partitioning technique for which we are designing an experiment with carefully constructed mine soil samples. In a second effort, as part of a mined land reforestation project for carbon sequestration in southwestern Virginia we implemented the first phase of the carbon monitoring protocol that was recently delivered to DOE.

  11. Portal 6.0 Released!!

    E-Print Network [OSTI]

    Cantor, Michael

    2011-01-01

    to comparative ge­ nomics . Portal 6.0 introduces the " Gr o u p " portal, i n w hi c h your favorite portal tools can be applied to groups o

  12. MECS 2006- Forest Products

    Broader source: Energy.gov [DOE]

    Manufacturing Energy and Carbon Footprint for Forest Products (NAICS 321, 322) Sector with Total Energy Input, October 2012 (MECS 2006)

  13. Carbon Isotopic Studies of Assimilated and Ecosystem Respired CO2 in a Southeastern Pine Forest. Final Report and Conference Proceedings

    SciTech Connect (OSTI)

    Conte, Maureen H

    2008-04-10

    Carbon dioxide is the major “greenhouse” gas responsible for global warming. Southeastern pine forests appear to be among the largest terrestrial sinks of carbon dioxide in the US. This collaborative study specifically addressed the isotopic signatures of the large fluxes of carbon taken up by photosynthesis and given off by respiration in this ecosystem. By measuring these isotopic signatures at the ecosystem level, we have provided data that will help to more accurately quantify the magnitude of carbon fluxes on the regional scale and how these fluxes vary in response to climatic parameters such as rainfall and air temperature. The focus of the MBL subcontract was to evaluate how processes operating at the physiological and ecosystem scales affects the resultant isotopic signature of plant waxes that are emitted as aerosols into the convective boundary layer. These wax aerosols provide a large-spatial scale integrative signal of isotopic discrimination of atmospheric carbon dioxide by terrestrial photosynthesis (Conte and Weber 2002). The ecosystem studies have greatly expanded of knowledge of wax biosynthetic controls on their isootpic signature The wax aerosol data products produced under this grant are directly applicable as input for global carbon modeling studies that use variations in the concentration and carbon isotopic composition of atmospheric carbon dioxide to quantify the magnitude and spatial and temporal patterns of carbon uptake on the global scale.

  14. Web Portal Usability Tests for the Nevada Climate Change Portal

    E-Print Network [OSTI]

    Dascalu, Sergiu

    Web Portal Usability Tests for the Nevada Climate Change Portal Ivan Gibbs, Sergiu M. Dascalu environment for web user interfaces is constantly changing. Unique web portals have been created to deliver climate change related information and data. One of these portals, discussed in this paper, is called

  15. Presentation 2.3: The sustainable forest products industry, carbon and climate change Mikael Hannus

    E-Print Network [OSTI]

    emissions, the forest products industry can - become more energy efficient and increase its share of biomass International Seminar onFAO IEA ICFPA International Seminar on Energy and the Forest Products IndustryEnergy the industry. To assist in the efforts to reduce society's energy use and greenhouse gas emissions, the forest

  16. Influence of stand age on the magnitude and seasonality of carbon fluxes in Canadian forests

    E-Print Network [OSTI]

    2012-01-01

    time series of carbon, water, and energy exchange at themeasurements of carbon, water and energy exchanges betweenN. , 2006. Carbon, energy and water ?uxes at mature and

  17. Ecosystem carbon dioxide fluxes after disturbance in forests of North America

    E-Print Network [OSTI]

    2010-01-01

    2010 Ecosystem carbon dioxide fluxes after disturbance in2007), Comparison of carbon dioxide fluxes over three borealharvest influence carbon dioxide fluxes of black spruce

  18. Portal Business Models Richard Snodgrass

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    Portal Business Models Richard Snodgrass November 12, 2001 There are two distinct Portal business fundamentally different approaches and visions for the Portal. Each model presents significant opportunities popular web databases that illustrate the Portal's potential, and the SGB Proposal. The initial proposal

  19. Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystem Services

    SciTech Connect (OSTI)

    James A. Burger; J. Galbraith; T. Fox; G. Amacher; J. Sullivan; C. Zipper

    2005-12-01

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. We are currently estimating the acreage of lands in Virginia, West Virginia, Kentucky, Ohio, and Pennsylvania mined under SMCRA and reclaimed to non-forested post-mining land uses that are not currently under active management, and therefore can be considered as available for carbon sequestration. To determine actual sequestration under different forest management scenarios, a field study was installed as a 3 x 3 factorial in a random complete block design with three replications at each of three locations, one each in Ohio, West Virginia, and Virginia. The treatments included three forest types (white pine, hybrid poplar, mixed hardwood) and three silvicultural regimes (competition control, competition control plus tillage, competition control plus tillage plus fertilization). Each individual treatment plot is 0.5 acres. Each block of nine plots is 4.5 acres, and the complete installation at each site is 13.5 acres. Regression models of chemical and physical soil properties were created in order to estimate the SOC content down the soil profile. Soil organic carbon concentration and volumetric percent of the fines decreased exponentially down the soil profile. The results indicated that one-third of the total SOC content on mined lands was found in the surface 0-13 cm soil layer, and more than two-thirds of it was located in the 0-53 cm soil profile. A relative estimate of soil density may be best in broad-scale mine soil mapping since actual D{sub b} values are often inaccurate and difficult to obtain in rocky mine soils. Carbon sequestration potential is also a function of silvicultural practices used for reforestation success. Weed control plus tillage may be the optimum treatment for hardwoods and white pine, as any increased growth resulting from fertilization may not offset the decreased survival that accompanied fertilization. Relative to carbon value, our analysis this quarter shows that although short-rotation hardwood management on reclaimed surface mined lands may have higher LEVs than traditional long-rotation hardwood management, it is only profitable in a limited set of circumstances.

  20. INL Portal Support

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

    Supported Browsers The INL Portal supports Internet Explorer 6.0, 7.0; Firefox 1.5, 2.0; and Safari 2.0 (Mac only) browsers. You can download one of the supported browsers from the...

  1. Ecosystem carbon dioxide fluxes after disturbance in forests of North America

    E-Print Network [OSTI]

    2010-01-01

    carbon dioxide, water vapor and energy flux densities, Bull.et al. (2006), Carbon, energy and water fluxes at mature and

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

    SciTech Connect (OSTI)

    James A. Burger; J. Galbraith; T. Fox; G. Amacher; J. Sullivan; C. Zipper

    2005-02-15

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. During the reporting period (October-December 2004) we completed the validation of a forest productivity classification model for mined land. A coefficient of determination (R{sup 2}) of 0.68 confirms the model's ability to predict SI based on a selection of mine soil properties. To determine carbon sequestration under different forest management scenarios, a field study was installed as a 3 x 3 factorial in a random complete block design with three replications at each of three locations, Ohio (Figure 1), West Virginia (Figure 2), and Virginia (Figure 3). The treatments included three forest types (white pine, hybrid poplar, mixed hardwood) and three silvicultural regimes (competition control, competition control plus tillage, competition control plus tillage plus fertilization). For hybrid poplar, total plant biomass differences increased significantly with the intensity of silvicultural input. Root, stem, and foliage biomass also increased with the level of silvicultural intensity. Financial feasibility analyses of reforestation on mined lands previously reclaimed to grassland have been completed for conversion to white pine and mixed hardwood species. Examination of potential policy instruments for promoting financial feasibility also have been completed, including lump sum payments at time of conversion, annual payments through the life of the stand, and payments based on carbon sequestration that provide both minimal profitability and fully offset initial reforestation outlays. We have compiled a database containing mine permit information obtained from permitting agencies in Virginia, West Virginia, Pennsylvania, Ohio, and Kentucky. Due to differences and irregularities in permitting procedures between states, we found it necessary to utilize an alternative method to determine mined land acreages in the Appalachian region. We have initiated a proof of concept study, focused in the State of Ohio, to determine the feasibility of using images from the Landsat Thematic Mapper (TM) and/or Enhanced Thematic Mapper Plus (ETM+) to accurately identify mined lands.

  3. Modeling soil respiration based on carbon, nitrogen, and root mass across diverse Great Lake forests

    E-Print Network [OSTI]

    Chen, Jiquan

    . Introduction Linkages between atmospheric carbon dioxide and global thermal properties have forcedModeling soil respiration based on carbon, nitrogen, and root mass across diverse Great Lake the examination of biospheric carbon flows and pools. Variability in carbon storage or the net ecosystem exchange

  4. NERSC Hosts Digital Stargazing Portal

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

    NERSC Hosts Digital Stargazing Portal NERSC Hosts Digital Stargazing Portal June 4, 2015 Legacy highres 1400x800 Courtesy of DECam Legacy Survey Even non-scientists can now browse...

  5. Inventor Portal Workshop Presented by

    E-Print Network [OSTI]

    Yang, Eui-Hyeok

    Inventor Portal Workshop Presented by: Office of Innovation & Entrepreneurship September 17 2014 or other IP? ASAP #12;HOW? SIT Inventor Portal (Provided by Inteum SAS) · 100% Online Submission · View

  6. My Research Portal, which is

    E-Print Network [OSTI]

    My Research Portal, which is being rebranded as My Pages and integrated into GTCrossroads information as we prepare to launch the new portal Questions? Send an email to training@osp.gatech.edu #12;

  7. Target detection portal

    DOE Patents [OSTI]

    Linker, Kevin L. (Albuquerque, NM); Brusseau, Charles A. (Tijeras, NM)

    2002-01-01

    A portal apparatus for screening persons or objects for the presence of trace amounts of target substances such as explosives, narcotics, radioactive materials, and certain chemical materials. The portal apparatus can have a one-sided exhaust for an exhaust stream, an interior wall configuration with a concave-shape across a horizontal cross-section for each of two facing sides to result in improved airflow and reduced washout relative to a configuration with substantially flat parallel sides; air curtains to reduce washout; ionizing sprays to collect particles bound by static forces, as well as gas jet nozzles to dislodge particles bound by adhesion to the screened person or object. The portal apparatus can be included in a detection system with a preconcentrator and a detector.

  8. Influence of stand age on the magnitude and seasonality of carbon fluxes in Canadian forests

    E-Print Network [OSTI]

    2012-01-01

    GPP, respiration, and NEP during boreal forest succession.ecosystem productivity (NEP), gross ecosystem productivity (Mg C ha ?1 at 80 years. Peak NEP ranged from 0.9 to 2.9 Mg C

  9. Using climate policies and carbon markets to save tropical forests : the case of Costa Rica

    E-Print Network [OSTI]

    Arpels, Marisa (Marisa Carina)

    2008-01-01

    In the late 1980s and early 1990s, advocates for forest conservation thought that climate change could provide a lever to motivate developing countries to reduce deforestation. Fifteen years after the first climate change ...

  10. Supporting Online Material for: Carbon in Amazon forests: Unexpected seasonal fluxes and disturbance-

    E-Print Network [OSTI]

    seasonal variations in important climatic variables at this site: solar radiation, net radiation, air; measurements at Km 83 after that date are not included here, since we focus on the dynamics of primary forests

  11. Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystem Services

    SciTech Connect (OSTI)

    Burger, James A

    2005-07-20

    The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. We are currently estimating the acreage of lands in Virginia, West Virginia, Kentucky, Ohio, and Pennsylvania mined under SMCRA and reclaimed to non-forested post-mining land uses that are not currently under active management, and therefore can be considered as available for carbon sequestration. To determine actual sequestration under different forest management scenarios, a field study was installed as a 3 x 3 factorial in a random complete block design with three replications at each of three locations, one each in Ohio, West Virginia, and Virginia. The treatments included three forest types (white pine, hybrid poplar, mixed hardwood) and three silvicultural regimes (competition control, competition control plus tillage, competition control plus tillage plus fertilization). Each individual treatment plot is 0.5 acres. Each block of nine plots is 4.5 acres, and the complete installation at each site is 13.5 acres. During the reporting period we determined that by grinding the soil samples to a finer particle size of less than 250 ?m (sieve No. 60), the effect of mine soil coal particle size on the extent to which these particles will be oxidized during the thermal treatment of the carbon partitioning procedure will be eliminated, thus making the procedure more accurate and precise. In the second phase of the carbon sequestration project, we focused our attention on determining the sample size required for carbon accounting on grassland mined fields in order to achieve a desired accuracy and precision of the final soil organic carbon (SOC) estimate. A mine land site quality classification scheme was developed and some field-testing of the methods of implementation was completed. The classification model has been validated for softwoods (white pine) on several reclaimed mine sites in the southern Appalachian coal region. The classification model is a viable method for classifying post-SMCRA abandoned mined lands into productivity classes for white pine. A thinning study was established as a random complete block design to evaluate the response to thinning of a 26-year-old white pine stand growing on a reclaimed surface mine in southwest Virginia. Stand parameters were projected to age 30 using a stand table projection. Site index of the stand was found to be 32.3 m at base age 50 years. Thinning rapidly increased the diameter growth of the residual trees to 0.84 cm yr{sup -1} compared to 0.58 cm yr{sup -1} for the unthinned treatment; however, at age 26, there was no difference in volume or value per hectare. At age 30, the unthinned treatment had a volume of 457.1 m{sup 3} ha{sup -1} but was only worth $8807 ha{sup -1}, while the thinned treatment was projected to have 465.8 m{sup 3} ha{sup -1}, which was worth $11265 ha{sup -1} due to a larger percentage of the volume being in sawtimber size classes.

  12. The combined effects of thinning and prescribed fire on carbon and nutrient budgets in a Jeffrey pine forest

    SciTech Connect (OSTI)

    Johnson, Dale W. [University of Nevada, Reno; Murphy, James D. [University of Nevada, Reno; Walker, Roger F. [University of Nevada, Reno; Miller, Watkins W. [University of Nevada, Reno; Glass, D. W. [University of Nevada, Reno; Todd Jr, Donald E [ORNL

    2008-09-01

    Both burning and harvesting cause carbon and nutrient removals from forest ecosystems, but few studies have addressed the combination of these effects. For a Pinus jeffreyii forest in the Sierra Nevada Mountains of California, we posed the question: what are the relative impacts of thinning and subsequent burning on carbon and nutrient removals? The thinning methods included whole-tree thinning (WT, where all aboveground biomass was removed) cut to length (CTL, where branches and foliage were left on site in a slash mat on top of skid trails) and no harvest (CONT). Total C and nutrient exports with thinning and burning were greater in the WT and CTL than in the CONT treatments. Total C and N removals were approximately equal for the WT and CTL treatments, although harvesting dominated exports in the WT treatment and burning dominated exports in the CTL treatment. Total removals of P, K, Ca, Mg and S were greatest in the WT treatments, where harvesting dominated removals. Comparisons of nutrient removals with ecosystem capital and calculations of potential replenishment by atmospheric deposition suggested that N is the nutrient likely to be most depleted by harvesting and burning treatments.

  13. Effects of grazing intensity on soil carbon stocks following deforestation of a Hawaiian dry tropical forest

    E-Print Network [OSTI]

    Elmore, Andrew J.

    : carbon isotopes, elevation, Hawai'i, imaging spectroscopy, land-use change, pastures, remote sensing be addressed, future changes in ecosystem dynamics and atmospheric carbon dioxide cannot be easily predictedEffects of grazing intensity on soil carbon stocks following deforestation of a Hawaiian dry

  14. Exploring the Higgs portal

    E-Print Network [OSTI]

    Christoph Englert; Tilman Plehn; Dirk Zerwas; Peter M. Zerwas

    2011-08-19

    We study the Higgs portal from the Standard-Model to a hidden sector and examine which elements of the extended theory can be discovered and explored at the LHC. Our model includes two Higgs bosons covering parameter regions where the LHC will be sensitive to two, one or none of the particles at typical discovery luminosities for Standard Model Higgs production.

  15. anagin Forests because Carbon Matters: In grating Energy, Products, and Land

    E-Print Network [OSTI]

    Fried, Jeremy S.

    storage and releases, water fluxes from the soil and into the atmosphere, and solar energy copture with traditional forest products, but it may also produce benefits through competition and market efficiency. Short to heart the finding of the Intergovernmental Panel on Oimote OlOnge in its Fourth Assessment Report when

  16. A model analysis of N and P limitation on carbon accumulation in Amazonian secondary forest after

    E-Print Network [OSTI]

    alternate land-use abandonment DARRELL A. HERBERT*, MATHEW WILLIAMS and EDWARD B. RASTETTER Marine in residual fuel and belowground necromass relative to soil organic matter (SOM) N:P produced a simul- taneous- nificantly. Associated with the practice of forest conversion to alternate land-use is an export of C

  17. Using electrochemical impedance spectroscopy to characterize vertically-aligned carbon nanotube forest porosimetry

    E-Print Network [OSTI]

    Lu, Yuan, S.B. Massachusetts Institute of Technology

    2015-01-01

    Carbon nanotubes have generated much research interest and potential applications due to their unique properties such as their high tensile strength, high thermal conductivity, and unique semiconductor properties. ...

  18. Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model

    E-Print Network [OSTI]

    2013-01-01

    emissions from boreal forest fires, J. Geophys. Res. , 109,Skinner, W. R. : Large forest fires in Canada, 1959–1997, J.S. : The Impact of Bo- real Forest Fire on Climate Warming,

  19. Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model

    E-Print Network [OSTI]

    2013-01-01

    development of Boreal forests and fire regimes on the Kenaiemissions from boreal forest fires, J. Geophys. Res. , 109,Skinner, W. R. : Large forest fires in Canada, 1959–1997, J.

  20. CO2 enrichment increases carbon and nitrogen input from fine roots in a deciduous forestinput from fine roots in a deciduous forest

    E-Print Network [OSTI]

    Post, Wilfred M.

    CO2 enrichment increases carbon and nitrogen input from fine roots in a deciduous forestinput from fine roots in a deciduous forest · We assessed the effect of elevated [CO2] Contact: Richard J. Norby Research We assessed the effect of elevated [CO2] on production and mortality of short-lived fine

  1. Soil Biology & Biochemistry 39 (2007) 27012711 Carbon structure and enzyme activities in alpine and forest ecosystems

    E-Print Network [OSTI]

    Neff, Jason

    2007-01-01

    : Pyrolysis-gas chromatography/mass spectrometry; Py-GC/MS; Enzymes; Microbe; Carbon; Chemistry; Soil organicSoil Biology & Biochemistry 39 (2007) 2701­2711 Carbon structure and enzyme activities in alpine of soil organic matter fractions and its relationship to biological processes remains uncertain. We used

  2. Available online at www.sciencedirect.com The carbon balance of tropical forest regions, 19902005

    E-Print Network [OSTI]

    Malhi, Yadvinder

    the biosphere to the atmosphere, through the combustion and decomposition of vegetation biomass. The exact of knowledge of the carbon balance of the tropical bio- sphere, looking at both CO2 emissions from land use, principally because they contain the more substantial biomass carbon stocks, but also because so few data

  3. Tropical North Atlantic ocean-atmosphere interactions synchronize forest carbon losses from hurricanes and Amazon fires

    E-Print Network [OSTI]

    Chen, Y; Randerson, JT; Morton, DC

    2015-01-01

    19), 7888–7892. CHEN ET AL. HURRICANES AND AMAZON FIRES AREand G. C. Hurtt (2007), Hurricane Katrina’s carbon footprintThe 2013 Atlantic basin hurricane season: Blip or ?ip? ,

  4. Forest Resources and Management

    E-Print Network [OSTI]

    the forest resource. Our aim is that British forests ­ from their creation to maturity and regeneration and harvesting, and the physical properties of stands, trees and timber. Scope of our work Our research focuses expertise in forecasting forest growth is now applied to carbon assessment and management. We also work

  5. Modest carbon price could save Borneo forests: study Reuters, 4 June 2009 -Tropical forests in Borneo under threat of conversion to palm oil

    E-Print Network [OSTI]

    in Borneo under threat of conversion to palm oil plantations could be more profitable left standing threat of being converted to oil palm plantations. "They are not meant to be clearing forest for palm oil development. It's pretty clear that forests are being felled for oil palm," said Venter, a conservation

  6. VEHICLE ACCESS PORTALS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentric viewing system forPortal. 1.1 I3: RedSynthesis

  7. VEHICLE ACCESS PORTALS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentric viewing system forPortal. 1.1 I3:

  8. Portal monitoring technology control process

    SciTech Connect (OSTI)

    York, R.L.

    1998-12-31

    Portal monitors are an important part of the material protection, control, and accounting (MPC and A) programs in Russia and the US. Although portal monitors are only a part of an integrated MPC and A system, they are an effective means of controlling the unauthorized movement of special nuclear material (SNM). Russian technical experts have gained experience in the use of SNM portal monitors from US experts ad this has allowed them to use the monitors more effectively. Several Russian institutes and companies are designing and manufacturing SNM portal monitors in Russia. Interactions between Russian and US experts have resulted in improvements to the instruments. SNM portal monitor technology has been effectively transferred from the US to Russia and should be a permanent part of the Russian MPC and A Program. Progress in the implementation of the monitors and improvements to how they are used are discussed.

  9. Carbon stocks in coffee agroforests and mixed dry tropical forests in the western highlands of Guatemala

    E-Print Network [OSTI]

    Evans, Tom

    of Guatemala Mikaela Schmitt-Harsh · Tom P. Evans · Edwin Castellanos · J. C. Randolph Received: 4 January 2012- ducted in 2007 and 2010 in the Lake Atitla´n region of Guatemala, this research examines the carbon pools Estudios Ambientales y de Biodiversidad, Universidad del Valle de Guatemala, 18 Avenida 11-95 Zona 15

  10. Comparison of coniferous forest carbon stocks between old-growth and young second-growth

    E-Print Network [OSTI]

    Sanborn, Paul

    stocks by 54%­41%. Résumé : Les stocks de carbone (C) ont été évalués pour les forêts de montagne-Britannique, au Canada. Des parcelles-échantillons ont été éta- blies dans quatre vieilles forêts (141­250 ans) et quatre jeunes forêts de seconde venue (ans) sur les deux types dominants de texture du sol, grossière

  11. Warming acceleratesQ:1 decomposition; 2 of decades-old carbon in forest soils

    E-Print Network [OSTI]

    , CA 94720; and d Energy and Resources Group, University of California, Berkeley, CA 94720 AUTHOR to distinguish the contribution of decades-old carbon to CO2 fluxes in a labo- ratory incubation study. The first- sphere, which has declined since the early 1960s when large-scale atmospheric testing of nuclear weapons

  12. Reduced impact logging minimally alters tropical rainforest carbon and energy exchange

    E-Print Network [OSTI]

    2011-01-01

    variations in energy and carbon exchange over forest andon tropical forest carbon, water, and energy exchange. Twothe role of forest in the water and energy cycles and

  13. Welcome to the Portal | Welcome to the UWTravelWIse Portal 7/31/2013 1

    E-Print Network [OSTI]

    Evans, Paul G.

    Welcome to the Portal | Welcome to the UWTravelWIse Portal 7/31/2013 1 The following screen shots illustrate the navigation on the portal The portal home page features instant access to the following: · New · View Your Trip ­ Instant viewing of any upcoming trip information booked through the portal · Traveler

  14. BioPortal: A Web Portal to Biomedical Ontologies Daniel L. Rubin,1

    E-Print Network [OSTI]

    Rubin, Daniel L.

    BioPortal: A Web Portal to Biomedical Ontologies Daniel L. Rubin,1 Dilvan A. Moreira,1 Pradip P, and to provide feedback or critiques to ontology devel- opers. We have created BioPortal, a Web portal, critique, and improve on- tologies. The BioPortal library contains over 50 ontologies from the biological

  15. Portal Status Update TransPort Meeting

    E-Print Network [OSTI]

    Bertini, Robert L.

    + Portal Status Update TransPort Meeting 6-11-14 #12;+ TRANSIT #12;+ Accomplishments - Transit Module) feed loading in Portal DB ! Compass rewrite in progress ! Modernized codebase allows for faster version of Portal map ! Allows for a Portal map to be embedded on other sites ! Automated import of Clark

  16. GEONGrid Portal: Design and Implementations Choonhan Youn*,

    E-Print Network [OSTI]

    Rejaie, Reza

    GEONGrid Portal: Design and Implementations Choonhan Youn*, Chaitan Baru, Karan Bhatia, Sandeep and scientists, the area of Grid Portals has made excellent progress. Grid portal system is emerging open grid present our initial efforts of design and implementations of service components in the GEONGrid portal

  17. Restoring Sustainable Forests on Appalachian Mined Lands for Wood Product, Renewable Energy, Carbon Sequestration, and Other Ecosystem Services

    SciTech Connect (OSTI)

    Burger, James A

    2006-09-30

    Concentrations of CO{sub 2} in the Earth’s atmosphere have increased dramatically in the past 100 years due to deforestation, land use change, and fossil fuel combustion. These humancaused, higher levels of CO{sub 2} may enhance the atmospheric greenhouse effect and may contribute to climate change. Many reclaimed coal-surface mine areas in the eastern U.S. are not in productive use. Reforestation of these lands could provide societal benefits, including sequestration of atmospheric carbon. The goal of this project was to determine the biological and economic feasibility of restoring high-quality forests on the tens of thousands of hectares of mined land and to measure carbon sequestration and wood production benefits that would be achieved from large-scale application of forest restoration procedures. We developed a mine soil quality model that can be used to estimate the suitability of selected mined sites for carbon sequestration projects. Across the mine soil quality gradient, we tested survival and growth performance of three species assemblages under three levels of silvicultural. Hardwood species survived well in WV and VA, and survived better than the other species used in OH, while white pine had the poorest survival of all species at all sites. Survival was particularly good for the site-specific hardwoods planted at each site. Weed control plus tillage may be the optimum treatment for hardwoods and white pine, as any increased growth resulting from fertilization may not offset the decreased survival that accompanied fertilization. Grassland to forest conversion costs may be a major contributor to the lack of reforestation of previously reclaimed mine lands in the Appalachian coal-mining region. Otherwise profitable forestry opportunities may be precluded by these conversion costs, which for many combinations of factors (site class, forest type, timber prices, regeneration intensity, and interest rate) result in negative land expectation values. Improved technology and/or knowledge of reforestation practices in these situations may provide opportunities to reduce the costs of converting many of these sites as research continues into these practices. It also appears that in many cases substantial payments, non-revenue values, or carbon values are required to reach “profitability” under the present circumstances. It is unclear when, or in what form, markets will develop to support any of these add-on values to supplement commercial forestry revenues. However, as these markets do develop, they will only enhance the viability of forestry on reclaimed mined lands, although as we demonstrate in our analysis of carbon payments, the form of the revenue source may itself influence management, potentially mitigating some of the benefits of reforestation. For a representative mined-land resource base, reforestation of mined lands with mixed pine-hardwood species would result in an average estimated C accumulation in forms that can be harvested for use as wood products or are likely to remain in the soil C pool at ~250 Mg C ha{sup -1} over a 60 year period following reforestation. The “additionality” of this potential C sequestration was estimated considering data in scientific literature that defines C accumulation in mined-land grasslands over the long term. Given assumptions detailed in the text, these lands have the potential to sequester ~180 Mg C ha{sup -1}, a total of 53.5 x 10{sup 6} Mg C, over 60 years, an average of ~900,000 Mg C / yr, an amount equivalent to about 0.04% of projected US C emissions at the midpoint of a 60-year period (circa 2040) following assumed reforestation. Although potential sequestration quantities are not great relative to potential national needs should an energy-related C emissions offset requirement be developed at some future date, these lands are available and unused for other economically valued purposes and many possess soil and site properties that are well-suited to reforestation. Should such reforestation occur, it would also produce ancillary benefits by providing env

  18. Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior Alaska

    SciTech Connect (OSTI)

    Genet, Helene [Institute of Arctic Biology (IAB), University of Alaska, Fairbanks (UAF)] [Institute of Arctic Biology (IAB), University of Alaska, Fairbanks (UAF); McGuire, A. David [University of Alaska] [University of Alaska; Barrett, K. [USGS Alaska Science Center] [USGS Alaska Science Center; Breen, Amy [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF)] [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF); Euskirchen, Eugenie S [University of Alaska] [University of Alaska; Johnstone, J. F. [University of Saskatchewan] [University of Saskatchewan; Kasischke, Eric S. [University of Maryland, College Park] [University of Maryland, College Park; Melvin, A. M. [University of Florida, Gainesville] [University of Florida, Gainesville; Bennett, A. [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF)] [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF); Mack, M. C. [University of Florida, Gainesville] [University of Florida, Gainesville; Rupp, Scott T. [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF)] [International Arctic Research Center, SNAP, University of Alaska, Fairbanks (UAF); Schuur, Edward [University of Florida] [University of Florida; Turetsky, M. R. [University of Guelph, Canada] [University of Guelph, Canada; Yuan, Fengming [ORNL] [ORNL

    2013-01-01

    There is a substantial amount of carbon stored in the permafrost soils of boreal forest ecosystems, where it is currently protected from decomposition. The surface organic horizons insulate the deeper soil from variations in atmospheric temperature. The removal of these insulating horizons through consumption by fire increases the vulnerability of permafrost to thaw, and the carbon stored in permafrost to decomposition. In this study we ask how warming and fire regime may influence spatial and temporal changes in active layer and carbon dynamics across a boreal forest landscape in interior Alaska. To address this question, we (1) developed and tested a predictive model of the effect of fire severity on soil organic horizons that depends on landscape-level conditions and (2) used this model to evaluate the long-term consequences of warming and changes in fire regime on active layer and soil carbon dynamics of black spruce forests across interior Alaska. The predictive model of fire severity, designed from the analysis of field observations, reproduces the effect of local topography (landform category, the slope angle and aspect and flow accumulation), weather conditions (drought index, soil moisture) and fire characteristics (day of year and size of the fire) on the reduction of the organic layercaused by fire. The integration of the fire severity model into an ecosystem process-based model allowed us to document the relative importance and interactions among local topography, fire regime and climate warming on active layer and soil carbon dynamics. Lowlands were more resistant to severe fires and climate warming, showing smaller increases in active layer thickness and soil carbon loss compared to drier flat uplands and slopes. In simulations that included the effects of both warming and fire at the regional scale, fire was primarily responsible for a reduction in organic layer thickness of 0.06 m on average by 2100 that led to an increase in active layer thickness of 1.1 m on average by 2100. The combination of warming and fire led to a simulated cumulative loss of 9.6 kgC m 2 on average by 2100. Our analysis suggests that ecosystem carbon storage in boreal forests in interior Alaska is particularly vulnerable, primarily due to the combustion of organic layer thickness in fire and the related increase in active layer thickness that exposes previously protected permafrost soil carbon to decomposition.

  19. Climate control of terrestrial carbon exchange across biomes and continents

    E-Print Network [OSTI]

    Yi, C.; Ricciuota, D.; Goulden, M. L.

    2010-01-01

    of carbon and energy exchanges Agric. Forest Meteorol. 113Agric. Forest Meteorol. Foken T 2008 The energy balance

  20. Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model

    E-Print Network [OSTI]

    2013-01-01

    NPP, GPP, respiration, and NEP during boreal forest succes-evaluated comprise GPP, NEP, TER, leaf area index (LAI),net ecosystem production or NEP, total ecosystem respiration

  1. Tracking Grantee Portal Standards and Recommendations Standards and Recommendations Table

    E-Print Network [OSTI]

    Tracking Grantee Portal Standards and Recommendations April 2009 Standards and Recommendations Table Tracking Network Standards Provide both public and secure grantee portals. Provide a link to the Tracking Network's National Portal from individual state portals. Maintain visual consistency among pages

  2. Electrocatalysts on Carbon Nanoparticles - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansas Nuclear ProfileMultiferroic 2015ProgramWoodwardand Gold

  3. Testing a Mechanistic Model of Forest-Canopy Mass and Energy Exchange Using Eddy Correlation: Carbon Dioxide and Ozone Uptake by a Mixed Oak-Maple Stand

    E-Print Network [OSTI]

    Amthor, JS; Goulden, ML; Munger, JW; Wofsy, SC

    1994-01-01

    exchange of mass and energy between a forest canopy and thewater, energy, and momentum exchange between a forest andmeasurements of forest mass and energy exchange are

  4. Soil moisture dynamics in an eastern Amazonian tropical forest

    E-Print Network [OSTI]

    Bruno, RD; Bruno, RD; da Rocha, HR; de Freitas, HC; Goulden, ML; Miller, SD

    2006-01-01

    variations in energy and carbon exchange over forest andsurface energy exchange in the Amazonian terra firme forestvapour, energy, and CO 2 exchange. The rates of whole-forest

  5. Howland Forest David Hollinger, USDA Forest Service

    E-Print Network [OSTI]

    ; · An old-growth forest is a unique ecological endpoint · Long-term record of carbon is on factors that regulate long term carbon storage · Infrastructure · Topography experiment (21 ha) Canopy application, 18 kg N ha-1 y-1 (NH4NO3) C Sequestration Assessed in 3 Ways: · Eddy

  6. Control of Dry Season Evapotranspiration over the Amazonian Forest as Inferred from Observations at a Southern Amazon Forest Site

    E-Print Network [OSTI]

    Juárez, RIN; Hodnett, MG; Fu, R; Goulden, ML; von Randow, C

    2007-01-01

    variations in energy and carbon exchange over forest andEnergy and water dynam- ics of a central Amazonian rain forest.

  7. A Proposal for an ACM Computing Portal SIG Governing Board Portal Committee1

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    1 A Proposal for an ACM Computing Portal SIG Governing Board Portal Committee1 September 21, 1999 Abstract We propose a new ACM service, the ACM Computing Portal. This is a web-based repository Web. The ACM Computing Portal is an update and enhancement of the ACM Guide to Computing Literature

  8. Project Paper mySAP Portals

    E-Print Network [OSTI]

    1 Project Paper mySAP Portals: Concept - Architecture - Technology Submitted by: Rahila Zahir Matriculation Number: 17321 14.06.2002 Supervised by: Prof. Dr. Florian Matthes Software Technology Systems Introduction to SAP Portals..................................................................18 3.1 SAP ­ User

  9. iPortal and BI Training Classes

    Broader source: Energy.gov [DOE]

    To register for a course, please click here to log into the iPortal.  Once logged in, click on iPortal Training icon located on the left-hand side of the screen

  10. The Higgs Portal Above Threshold

    E-Print Network [OSTI]

    Nathaniel Craig; Hou Keong Lou; Matthew McCullough; Arun Thalapillil

    2015-05-05

    The discovery of the Higgs boson opens the door to new physics interacting via the Higgs Portal, including motivated scenarios relating to baryogenesis, dark matter, and electroweak naturalness. We systematically explore the collider signatures of singlet scalars produced via the Higgs Portal at the 14 TeV LHC and a prospective 100 TeV hadron collider. We focus on the challenging regime where the scalars are too heavy to be produced in the decays of an on-shell Higgs boson, and instead are produced primarily via an off-shell Higgs. Assuming these scalars escape the detector, promising channels include missing energy in association with vector boson fusion, monojets, and top pairs. We forecast the sensitivity of searches in these channels at $\\sqrt{s} = 14$ & 100 TeV and compare collider reach to the motivated parameter space of singlet-assisted electroweak baryogenesis, Higgs Portal dark matter, and neutral naturalness.

  11. Portal Monitor Future Development Work: Hardware Improvements

    SciTech Connect (OSTI)

    Browne, Michael C.

    2012-07-03

    LANL portal monitor was a modification of a previously installed (permanent) unattended monitoring system (UMS). Modifications to the UMS to make the portal were sometimes based on mistaken assumptions about exercise-specific installation and access. Philosophical approach to real-time portal differs in some areas from UMS.

  12. Aneka Web Portal MEDC Research Project 2011

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Aneka Web Portal MEDC Research Project 2011 RESEARCH & DEVELOPMENT BY: MOHAMMED S. ALROKAYAN,500 line of codes been written. Aneka Web Portal aims to design and develop a web application for Aneka organization an easy to use web application to view a summary of the current system statues. Aneka Web Portal

  13. Ads-Portal Domains: Identification and Measurements

    E-Print Network [OSTI]

    Yang, Xiaowei

    4 Ads-Portal Domains: Identification and Measurements MISHARI ALMISHARI University of California, Irvine and XIAOWEI YANG Duke University An ads-portal domain refers to a Web domain that shows only develop a machine-learning- based classifier to identify ads-portal domains, which has 96% accuracy. We

  14. iPortal Town Hall Meeting

    Broader source: Energy.gov [DOE]

    To register for a course, please click here to log into the iPortal. Once logged in, click on iPortal Training icon located on the left-hand side of the screenFor all iPortal Collaboration training...

  15. Carbon finance, tropical forests and the state : governing international climate risk in the Democratic Republic of Congo

    E-Print Network [OSTI]

    Gray, Ian P

    2012-01-01

    This thesis examines how evolving norms of international climate change mitigation are translated into national forest governance policies and land management techniques in the Democratic Republic of Congo (DRC). The ...

  16. Global Economic Effects of Changes in Crops, Pasture, and Forests due to Changing Climate, Carbon Dioxide, and Ozone

    E-Print Network [OSTI]

    Reilly, John M.

    Multiple environmental changes will have consequences for global vegetation. To the extent that crop yields and pasture and forest productivity are affected there can be important economic consequences. We examine the ...

  17. 2014 Urban Forest Symposium Tom Hinckley

    E-Print Network [OSTI]

    Brown, Sally

    2014 Urban Forest Symposium Tom Hinckley Professor Emeritus May 24, 2014 #12;Questions, temperature, ppt, extremes) #12;Simple Model: Carbon and Stress Leaf GrowthCarbon Production Carbon Storage, solarization · Growing season ­ Soil moisture ­ Atmospheric (wind, temperature, humidity, radiation) ­ Outcomes

  18. A knowledge portal for Norway

    E-Print Network [OSTI]

    Stølen, Ketil

    A knowledge portal for Norway 2012 Highlights from the University of Oslo's annual report #12 examinations 14 The Governor of the Bank of Norway's Annual Address: 15 A student ombudsman is introduced 15 for Norway, and in addition to its achievements in the form of education and new research, it has a large

  19. Elevated CO2 increases tree-level intrinsic water use efficiency: insights from carbon and oxygen isotope analyses in tree rings across three forest FACE sites

    SciTech Connect (OSTI)

    Battipaglia, Giovanna [Second University of Naples; Saurer, Matthias [Paul Scherrer Institut, Villigen, Switzerland; Cherubini, Paulo [WSL Swiss Federal Institute for Forest, Snow and Landscape Research; Califapietra, Carlo [University of Tuscia; McCarthy, Heather R [Duke University; Norby, Richard J [ORNL; Cotrufo, M. Francesca [Colorado State University, Fort Collins

    2013-01-01

    Elevated CO2 increases intrinsic water use efficiency (WUEi) of forests, but the magnitude of this effect and its interaction with climate is still poorly understood. We combined tree ring analysis with isotope measurements at three Free Air CO2 Enrichment (FACE, POP-EUROFACE, in Italy; Duke FACE in North Carolina and ORNL in Tennessee, USA) sites, to cover the entire life of the trees. We used 13C to assess carbon isotope discrimination ( 13C ci/ca) and changes in WUEi, while direct CO2 effects on stomatal conductance were explored using 18O as a proxy. Across all the sites, elevated CO2 increased 13C-derived WUEi on average by 73% for Liquidambar styraciflua, 77% for Pinus taeda and 75% for Populus sp., but through different ecophysiological mechanisms. Our findings provide a robust means of predicting WUEi responses from a variety of tree species exposed to variable environmental conditions over time, and species-specific relationships that can help modeling elevated CO2 and climate impacts on forest productivity, carbon and water balances.

  20. Carbon offsets as a cost containment instrument : a case study of reducing emissions from deforestation and forest degradation

    E-Print Network [OSTI]

    Kim, Jieun, S.M. Massachusetts Institute of Technology

    2010-01-01

    Carbon offset is one type of flexibility mechanism in greenhouse gas emission trading schemes that helps nations meet their emission commitments at lower costs. Carbon offsets take advantage of lower abatement cost ...

  1. Forest Carbon Cycle

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature

  2. Predicting decadal trends and transient responses of radiocarbon storage and fluxes in a temperate forest soil

    E-Print Network [OSTI]

    Sierra, C. A; Trumbore, S. E; Davidson, E. A; Frey, S. D; Savage, K. E; Hopkins, F. M

    2012-01-01

    carbon cycling in a temperate forest: radiocarbon-based es- timates of residence times, sequestration

  3. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, Kevin L. (Albuquerque, NM); Hannum, David W. (Albuquerque, NM); Conrad, Frank James (Russellville, SC)

    1999-01-01

    A portal apparatus for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow.

  4. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, K.L.; Hannum, D.W.; Conrad, F.J.

    1999-06-22

    A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

  5. Detection of long-term trends in carbon accumulation by forests in Northeastern U. S. and determination of causal factors: Final report

    SciTech Connect (OSTI)

    J. William Munger; Steven C. Wofsy; David R. Foster

    2012-01-31

    The overall project goal was to quantify the trends and variability for Net ecosystem exchange of CO{sub 2}, H{sub 2}O, and energy by northeastern forests, with particular attention to the role of succession, differences in species composition, legacies of past land use, and disturbances. Measurements included flux measurements and observations of biomass accumulation using ecosystem modeling as a framework for data interpretation. Continuation of the long-term record at the Environmental Measurement Site (EMS) Tower was a priority. The final quality-assured CO{sub 2}-flux data now extend through 2010. Data through 2011 are collected but not yet finalized. Biomass observations on the plot array centered on the tower are extended to 2011. Two additional towers in a hemlock stand (HEM) and a younger deciduous stand (LPH) complement the EMS tower by focusing on stands with different species composition or age distribution and disturbance history, but comparable climate and soil type. Over the period since 1993 the forest has added 24.4 Mg-C ha{sup -1} in the living trees. Annual net carbon uptake had been increasing from about 2 Mg-C ha{sup -1}y{sup -1} in the early 1990s to nearly 6 Mg-C ha{sup -1}y{sup -1} by 2008, but declined in 2009-2010. We attribute the increasing carbon uptake to a combination of warmer temperatures, increased photosynthetic efficiency, and increased influence by subcanopy hemlocks that are active in the early spring and late autumn when temperatures are above freezing but the deciduous canopy is bare. Not all of the increased carbon accumulation was found in woody biomass. Results from a study using data to optimize parameters in an ecosystem process model indicate that significant changes in model parameters for photosynthetic capacity and shifts in allocation to slow cycling soil organic matter are necessary for the model to match the observed trends. The emerging working hypothesis is that the pattern of increasing carbon uptake over the early 2000's represents a transient pulse that will eventually end as decomposition of the accumulated carbon catches up.

  6. Reduction of forest floor respiration by fertilization on both carbon dioxide-enriched and reference 17-year-old

    E-Print Network [OSTI]

    Oren, Ram

    be best applied to aggrading forest systems where soil resources have not been fully exploited (Mikan et affect the available C pool and impact microbial activity. When N amendments are added to peat soils, Canada. Amador JA, Jones RD (1993) Nutrient limitations on microbial respiration in peat soils

  7. Navigation to Important information on Raiderlink/Webraider Portal: Log into Raiderlink/WebRaider Portal

    E-Print Network [OSTI]

    Rock, Chris

    Navigation to Important information on Raiderlink/Webraider Portal: Log into Raiderlink/WebRaider Portal: TTU and TTUSA employees: http://raiderlink.ttu.edu: HSC: http://webraider.ttuhsc.edu: Select TTU

  8. Two-portal Dark Matter

    E-Print Network [OSTI]

    Karim Ghorbani; Hossein Ghorbani

    2015-06-14

    We propose a renormalizable dark matter model in which a fermionic dark matter (DM) candidate communicates with the standard model particles through two distinct portals: Higgs and vector portals. The dark sector is charged under a $U(1)'$ gauge symmetry while the standard model has a leptophobic interaction with the dark vector boson. The leading contribution of DM-nucleon elastic scattering cross section begins at one-loop level. The model meets all the constraints imposed by direct detection experiments provided by LUX and XENON100, observed relic abundance according to WMAP and Planck, and the invisible Higgs decay width measured at the LHC. It turns out that the dark matter mass in the viable parameter space can take values from a few GeV up to 1 TeV. This is a new feature which is absent in the models with only one portal. In addition, we can find in the constrained regions of the parameter space a DM mass of $\\sim 34$ GeV annihilating into $b$ quark pair, which explains the Fermi-LAT gamma-ray excess.

  9. Age-dependent variation in the biophysical properties of boreal forests

    E-Print Network [OSTI]

    McMillan, Andrew M. S.; Goulden, M. L.

    2008-01-01

    2000) Increased carbon sequestration by a boreal deciduouson the annual carbon sequestration by a boreal aspen forest.1996) Measurements of carbon sequestration by long-term eddy

  10. iPortal and BI Training Classes

    Broader source: Energy.gov [DOE]

    iPortal has various collaboration tools to offer. Sign up for a training class today and learn details on how using these tools can benefit your organization.

  11. Virginia Tech Electronic Invoice Suppliers Supplier Name Portal?

    E-Print Network [OSTI]

    Virginia Tech Electronic Invoice Suppliers Supplier Name Portal? Applied Biosystems LLC Bio VWR International Inc W W Grainger Inc Portal means that supplier goes into HokieMart supplier portal

  12. Imaging informatics for consumer health: Towards a radiology patient portal

    E-Print Network [OSTI]

    Arnold, CW; McNamara, M; El-Saden, S; Chen, S; Taira, RK; Bui, AAT

    2013-01-01

    the patient internet portal? The PatientSite experience. Jhttp://healthit.hhs.gov/ portal/server.pt? open=512&objID=reports via a patient portal: clinical simulations to

  13. Hepatic Portal Venous Gas: Findings on Ultrasound and CT

    E-Print Network [OSTI]

    Berona, Kristin; Hardiman, Kevin; Mailhot, Thomas

    2014-01-01

    Berona et al. Hepatic Portal Venous Gas: Findings onJ, Yazbeck T, et al. Hepatic portal venous 5. Nelson AL,D, et al. Hepatic portal venous gas: gas: physiopathology,

  14. VisPortal: Deploying grid-enabled visualization tools through...

    Office of Scientific and Technical Information (OSTI)

    VisPortal: Deploying grid-enabled visualization tools through a web-portal interface Citation Details In-Document Search Title: VisPortal: Deploying grid-enabled visualization...

  15. Tracking Grantee Portal Standards and Recommendations Standards and Recommendations Table

    E-Print Network [OSTI]

    Tracking Grantee Portal Standards and Recommendations April 2009 Standards and Recommendations Table Tracking Network Standards Provide both public and secure grantee portals. Provide a link on a grantee's portal. Organize contents of pages to facilitate the identification of detailed information

  16. Large fluxes and rapid turnover of mineral-associated carbon across topographic gradients in a humid tropical forest: insights from paired 14C analysis

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

    Hall, S. J.; McNicol, G.; Natake, T.; Silver, W. L.

    2015-04-29

    It has been proposed that the large soil carbon (C) stocks of humid tropical forests result predominantly from C stabilization by reactive minerals, whereas oxygen (O2) limitation of decomposition has received much less attention. We examined the importance of these factors in explaining patterns of C stocks and turnover in the Luquillo Experimental Forest, Puerto Rico, using radiocarbon (14C) measurements of contemporary and archived samples. Samples from ridge, slope, and valley positions spanned three soil orders (Ultisol, Oxisol, Inceptisol) representative of humid tropical forests, and differed in texture, reactive metal content, O2 availability, and root biomass. Mineral-associated C comprised themore »large majority (87 ± 2%, n = 30) of total soil C. Turnover of most mineral-associated C (66 ± 2%) was rapid (11 to 26 years; mean and SE: 18 ± 3 years) in 25 of 30 soil samples across surface horizons (0–10 and 10–20 cm depths) and all topographic positions, independent of variation in reactive metal concentrations and clay content. Passive C with centennial–millennial turnover was typically much less abundant (34 ± 3%), even at 10–20 cm depths. Carbon turnover times and concentrations significantly increased with concentrations of reduced iron (Fe(II)) across all samples, suggesting that O2 availability may have limited the decomposition of mineral-associated C over decadal scales. Steady-state inputs of mineral-associated C were statistically similar among the three topographic positions, and could represent 10–25% of annual litter production. Observed trends in mineral-associated ?14C over time could not be fit using the single-pool model used in many other studies, which generated contradictory relationships between turnover and ?14C as compared with a more realistic two-pool model. The large C fluxes in surface and near-surface soils documented here are supported by findings from paired 14C studies in other types of ecosystems, and suggest that most mineral-associated C cycles relatively rapidly (decadal scales) across ecosystems that span a broad range of state factors.« less

  17. Large fluxes and rapid turnover of mineral-associated carbon across topographic gradients in a humid tropical forest: insights from paired 14C analysis

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

    Hall, S. J.; McNicol, G.; Natake, T.; Silver, W. L.

    2015-01-16

    It has been proposed that the large soil carbon (C) stocks of humid tropical forests result predominantly from C stabilization by reactive minerals, whereas oxygen (O2) limitation of decomposition has received much less attention. We examined the importance of these factors in explaining patterns of C stocks and turnover in the Luquillo Experimental Forest, Puerto Rico, using radiocarbon (14C) measurements of contemporary and archived samples. Samples from ridge, slope, and valley positions spanned three soil orders (Ultisol, Oxisol, Inceptisol) representative of humid tropical forests, and differed in texture, reactive metal content, O2 availability, and root biomass. Mineral-associated C comprised themore »large majority (87 ± 2%, n = 30) of total soil C. Turnover of most mineral-associated C (74 ± 4%) was rapid (9 to 29 years, mean and SE 20 ± 2 years) in 25 of 30 soil samples across surface horizons (0–10 and 10–20 cm depths) and all topographic positions, independent of variation in reactive metal concentrations and clay content. Passive C with centennial – millennial turnover was much less abundant (26%), even at 10–20 cm depths. Carbon turnover times and concentrations significantly increased with concentrations of reduced iron (Fe(II)) across all samples, suggesting that O2 availability may have limited the decomposition of mineral associated C over decadal scales. Steady-state inputs of mineral-associated C were similar among the three topographic positions, and could represent 10–30% of annual litterfall production (estimated by doubling aboveground litterfall). Observed trends in mineral-associated ?14C over time could not be fit using the single pool model used in many other studies, which generated contradictory relationships between turnover and ?14C as compared with a more realistic constrained two-pool model. The large C fluxes in surface and near-surface soils implied by our data suggest that other studies using single-pool ?14C models of mineral-associated C dynamics, unconstrained by multiple time points, may have systematically underestimated C turnover.« less

  18. What Is Needed to Make REDD+ Work on the Ground: Lessons Learned...

    Open Energy Info (EERE)

    from Pilot Forest Carbon Initiatives AgencyCompany Organization: Forest Carbon Portal Sector: Land Focus Area: Forestry Topics: Policiesdeployment programs Resource Type:...

  19. Climate control of terrestrial carbon exchange across biomes and continents

    E-Print Network [OSTI]

    Yi, C.; Ricciuota, D.; Goulden, M. L.

    2010-01-01

    control, terrestrial carbon sequestration, temperature,on terrestrial carbon sequestration (Nemani et al 2003, Xiaodeposition and forest carbon sequestration Glob. Change

  20. Lee, McCarl, and Gillig The Dynamic Competitiveness of U.S. Agricultural and Forest Carbon Sequestration

    E-Print Network [OSTI]

    McCarl, Bruce A.

    the emissions efficiency of fossil fuel usage, or 3 #12;Lee, McCarl, and Gillig · actions reducing the dependence on fossil fuel sources by switching fuels. The costs of such actions were a prominent argument can play an important role but that the relative importance of strategies depends on carbon price

  1. Portal Advisory Committee Meeting Monday May 9, 2011

    E-Print Network [OSTI]

    Bertini, Robert L.

    Portal Advisory Committee Meeting Monday May 9, 2011 10:30-12:00 PM ITS Lab, Portland State) Summary of VAST PORTAL User Needs Workshop Workshop held March 3, 2011. Attendees from Vancouver-area agencies; discussion of data needs of users, current PORTAL functionality, ideas for PORTAL enhancement

  2. Portal Advisory Committee Meeting Monday December 19, 2011

    E-Print Network [OSTI]

    Bertini, Robert L.

    Portal Advisory Committee Meeting Monday December 19, 2011 10:00-11:30 PM ITS Lab, Portland State; performance issues resolved o Demo site (demo.portal.its.pdx.edu) Annual Report o Draft report TRB Papers o PORTAL TRB paper accepted ­ to be presented as poster o Two additional PORTAL-related papers

  3. Freeze-in through portals

    SciTech Connect (OSTI)

    Blennow, Mattias; Fernandez-Martínez, Enrique; Zaldívar, Bryan E-mail: enrique.fernandez-martinez@uam.es

    2014-01-01

    The popular freeze-out paradigm for Dark Matter (DM) production, relies on DM-baryon couplings of the order of the weak interactions. However, different search strategies for DM have failed to provide a conclusive evidence of such (non-gravitational) interactions, while greatly reducing the parameter space of many representative models. This motivates the study of alternative mechanisms for DM genesis. In the freeze-in framework, the DM is slowly populated from the thermal bath while never reaching equilibrium. In this work, we analyse in detail the possibility of producing a frozen-in DM via a mediator particle which acts as a portal. We give analytical estimates of different freeze-in regimes and support them with full numerical analyses, taking into account the proper distribution functions of bath particles. Finally, we constrain the parameter space of generic models by requiring agreement with DM relic abundance observations.

  4. Understanding the carbon and greenhouse gas balance

    E-Print Network [OSTI]

    Understanding the carbon and greenhouse gas balance of forests in Britain Research Report #12;#12;Research Report Understanding the carbon and greenhouse gas balance of forests in Britain Forestry., White, M. and Yamulki, S. (2012). Understanding the carbon and greenhouse gas balance of forests

  5. 1. Go to Website: https://portal.cms.gov/wps/portal/unauthportal/home/ 2. Click on New User Registration on the right side of the screen

    E-Print Network [OSTI]

    Chapman, Michael S.

    1. Go to Website: https://portal.cms.gov/wps/portal/unauthportal/home/ 2. Click on New User click link in #1 above) and login to the portal 2. Select "Request Access Now" 3. Select "Request New screen. 7. Logout and then log back in to the portal. https://portal.cms.gov/wps/portal

  6. TeachSpatial: A Portal to Instructional Resources on Spatial Concepts for STEM Education, Proposal

    E-Print Network [OSTI]

    Janelle, Donald G.; Grossner, Karl

    2010-01-01

    of science: A geographic portal. Annals of the Association2010    TeachSpatial: A Portal to Instructional Resources enhance an existing web portal (http://teachspatial.org) by

  7. Multiple Whole Genome Alignments and Novel Biomedical Applications at the VISTA Portal

    E-Print Network [OSTI]

    Brudno, Michael; Poliakov, Alexander; Minovitsky, Simon; Ratnere, Igor; Dubchak, Inna

    2008-01-01

    Applications at the VISTA Portal Michael Brudno, AlexanderABSTRACT The VISTA portal for comparative genomics isof the results. The VISTA portal also hosts alignments of a

  8. The Fukushima Daiichi Accident Study Information Portal

    SciTech Connect (OSTI)

    Shawn St. Germain; Curtis Smith; David Schwieder; Cherie Phelan

    2012-11-01

    This paper presents a description of The Fukushima Daiichi Accident Study Information Portal. The Information Portal was created by the Idaho National Laboratory as part of joint NRC and DOE project to assess the severe accident modeling capability of the MELCOR analysis code. The Fukushima Daiichi Accident Study Information Portal was created to collect, store, retrieve and validate information and data for use in reconstructing the Fukushima Daiichi accident. In addition to supporting the MELCOR simulations, the Portal will be the main DOE repository for all data, studies and reports related to the accident at the Fukushima Daiichi nuclear power station. The data is stored in a secured (password protected and encrypted) repository that is searchable and accessible to researchers at diverse locations.

  9. Sandia Energy - Energy and Water Data Portal

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

    Energy and Water Data Portal Home Climate & Earth Systems WaterEnergy Nexus Decision Models for Integrating EnergyWater Energy and Water in the Western and Texas Interconnects...

  10. Age-dependent variation in the biophysical properties of boreal forests

    E-Print Network [OSTI]

    McMillan, Andrew M. S.; Goulden, M. L.

    2008-01-01

    for long term energy flux data sets. Agricultural and ForestBOREAL FOREST atmosphere exchange of both carbon and energy.forests account for a large portion of terrestrial biomass and their rates of mass and energy

  11. High-latitude cooling associated with landscape changes from North American boreal forest fires

    E-Print Network [OSTI]

    Rogers, B. M; Randerson, J. T; Bonan, G. B

    2013-01-01

    C. S. : The impact of boreal forest fire on climate warming,W. : Climate change and forest fire poten- tial in Russianflight measurements of forest-fire effects on carbon diox-

  12. The effect of post-fire stand age on the boreal forest energy balance

    E-Print Network [OSTI]

    2006-01-01

    emissions from Canadian forest fires, 1959–1999. Can. J.W.R. , 2002. Large forest fires in Canada, 1959– 1997. J.flight measurements of forest-fire effects on carbon dioxide

  13. Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems

    E-Print Network [OSTI]

    Chambers, S. D; Randerson , J. T.; Beringer, J.; Chapin , F. S

    2005-01-01

    at Fourth Symposium on Forest and Fire Meteorology, Am.flight measurements of forest-fire effects on carbon dioxideNorth American boreal forest, in Fire, Climate Change and

  14. Instructions for use Eurasian J. For. Res. 15-1: 9-17 , 2012 Hokkaido University Forests, EFRC

    E-Print Network [OSTI]

    Tachizawa, Kazuya

    .yamagata-u.ac.jp Forest Fires Effects on Carbon Stocks and Soil Chemistry in Central Yakutia, Eastern Siberia LOPEZ C. M sites. Salt content increased in the active layer following forest fires, but a decade later, the salt: Black carbon, Forest fires, Permafrost, Soil chemistry, Soil organic carbon Introduction Boreal forests

  15. ORIGINAL PAPER Influence of tree species on carbon and nitrogen

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and for carbon sequestration (Jandl et al. 2007). Soil acidification and carbon sequestration are influ- encedORIGINAL PAPER Influence of tree species on carbon and nitrogen transformation patterns in forest carbon release under broadleaved forest floors may explain this difference. Spruce forest floor exhibited

  16. The Economic Importance of New Hampshire's Forest-Based Economy FOREST-BASED

    E-Print Network [OSTI]

    New Hampshire, University of

    recreational opportunities and store carbon, all while providing us a valuable renewable resource and important forest products, it also provides an economic motivation for forest landowners to keep their land products manufacturing, pulp and paper manufacturing, wood energy, and the forest-based recreational

  17. Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil

    E-Print Network [OSTI]

    2009-01-01

    variations in energy and carbon exchange over forest andexample, the energy stored in tropical forest biomass variedforest (JRU) and that illustrates the control that available energy

  18. Photonic dark matter portal revisited

    E-Print Network [OSTI]

    S. A. Alavi; F S Kazemian

    2015-11-18

    In our previous paper [1], we studied a model of dark matter (DM) in which the hidden sector interacts with standard model particles via a hidden photonic portal (HP). We investigated the effects of this new interaction on the hydrogen atom and obtained an upper bound for the coupling of the model. In this work, we study the effects of HP on two interesting exotic atoms namely muonium and positronium. We obtain a tighter upper limit on the coupling. We also calculate the change (shift) in the Aharonov-Bohm phase due to HP and find that the phase shift is negligibly small (for DM particles mass in the GeV range). Recently a 3.5 keV X ray line signal observed in the spectrum of 73 galaxy clusters, reported by the XXM-Newton X ray observatory. Since in HP model the DM particles can decay directly into photons, so we finally calculate the value of the coupling constant f using the condition Delta E=3.5 keV.

  19. Tropical forest responses to increasing atmospheric CO2: current knowledge and opportunities for future research

    E-Print Network [OSTI]

    Bermingham, Eldredge

    their representation in Earth system models. Tropical forests play a significant role in the global carbon cycle

  20. Genetic Analysis in Populus Reveals Potential to Enhance Soil Carbon Sequestration In a paper published in the August, 2005 issue of Canadian Journal of Forest Research, scientists

    E-Print Network [OSTI]

    Genetic Analysis in Populus Reveals Potential to Enhance Soil Carbon Sequestration In a paper carbon sequestration by an estimated 0.35Gt carbon/year. This represents ca. 4% of global carbon in terrestrial ecosystems. This work is supported by research funded through the Carbon Sequestration Program

  1. NOVA Portal: Submit VASP Jobs to Carver via the Web

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

    NOVA Portal: Submit VASP Jobs to Carver via the Web NOVA Portal: Submit VASP Jobs to Carver via the Web May 11, 2012 by Francesca Verdier NOVA is an experimental web application...

  2. IDW/iPortal Training Opportunities! | Department of Energy

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

    IDWiPortal Training Opportunities IDWiPortal Training Opportunities April 9, 2015 6:30AM EDT to June 30, 2015 2:30PM EDT Course Location: Online or Classroom Course...

  3. Wood density in forests of Brazil's `arc of deforestation': Implications for biomass and flux of carbon from land-use change in Amazonia

    E-Print Network [OSTI]

    Camara, Gilberto

    Wood density in forests of Brazil's `arc of deforestation': Implications for biomass and flux form 25 April 2007; accepted 29 April 2007 Abstract Wood density is an important variable in estimates of forest biomass and greenhouse-gas emissions from land-use change. The mean wood density used in estimates

  4. Webtrends Archives by Fiscal Year — Energy Innovation Portal

    Office of Energy Efficiency and Renewable Energy (EERE)

    From the EERE Web Statistics Archive: Corporate sites, Webtrends archives for the Energy Innovation Portal by fiscal year.

  5. Application of the smart portal in transportation

    SciTech Connect (OSTI)

    Kercel, S.W.; Baylor, V.M.; Dress, W.B.; Hickerson, T.W.; Jatko, W.B.; Labaj, L.E.; Muhs, J.D.; Pack, R.M.

    1996-12-31

    Under a program sponsored by the Department of Energy, the Oak Ridge complex is developed a ``Portal-of-the-Future``, or ``smart portal``. This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiogram, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

  6. Generalized complementing maps Francisco R. RUIZ DEL PORTAL

    E-Print Network [OSTI]

    Ruiz, Jesús M.

    Generalized complementing maps Francisco R. RUIZ DEL PORTAL Departamento de Geometr´ia y Topolog´ia Facultad de Ciencias Matem´aticas Universidad Complutense de Madrid 28040 Madrid, Spain R Portal-00825. 357 #12;F.R. Ruiz del Portal Generalized complementing maps differential version of this degree based

  7. Portal: Applications of New Technology to Transportation Data Archiving

    E-Print Network [OSTI]

    Bertini, Robert L.

    + Portal: Applications of New Technology to Transportation Data Archiving Kristin Tufte & the Portal Team NATMEC, July 1, 2014, Chicago, IL #12;+ Who is Kristin? ! 20 years Data Management System (1996-2014) ! S-Store ­ Streams + OLTP (2013-...) ! 10 years Transportation Data Management ! Portal

  8. A Collaborative High Performance and Grid Computing Portal

    E-Print Network [OSTI]

    Allen, Gabrielle

    #12;A Collaborative High Performance and Grid Computing Portal Master of Science, Electrical to researchers and scientists. A Portal-based solution facilitates a simple web-based graphical user interface computing to carry out their research activities. A collaborative portal brings together various resources

  9. Grid Portal System Based on GPIR , Geoffrey Fox2

    E-Print Network [OSTI]

    Grid Portal System Based on GPIR Fang Juan1 , Geoffrey Fox2 , Marlon Pierce2 1 College of Computer Bloomington, IN 47404, USA fangjuan@bjut.edu.cn ; {gcf, mpierce}@indiana.edu Abstract Grid portal is the bridge between Grid and user. In this paper a Grid portal system is set up based on GPIR of Grid

  10. Explore Portal Kristin Tufte, Morgan Harvey, Hui Zhang, Chris Giossi

    E-Print Network [OSTI]

    Bertini, Robert L.

    + Explore Portal Kristin Tufte, Morgan Harvey, Hui Zhang, Chris Giossi Metro, Jan 25, 2015 Maseeh College of Engineering and Computer Science #12;+Portal ­ in one slide... !Portland,TREC) ! Focus on open-source software ! ~3 TB PostgreSQL Database Portal Data Archive Transit TriMet C

  11. Harvard Ed Portal 224 Western Ave., Allston, MA 02134

    E-Print Network [OSTI]

    Chou, James

    Harvard Ed Portal 224 Western Ave., Allston, MA 02134 Parking Map and Driving Directions From Harvard Square/Cambridge: The Ed Portal is located past Harvard Stadium. Continue to the stoplight at the intersection of North Harvard St. and Western Ave., and take a right on Western Ave. The Ed Portal is located

  12. Grid Portal Architectures for Scientific Applications M. P. Thomas1

    E-Print Network [OSTI]

    Grid Portal Architectures for Scientific Applications M. P. Thomas1 , J. Burruss2 , L. Cinquini3 to these codes is often a technical and sociological challenge. Portals help bridge the gap because they are well to the user. This paper presents an overview of the current state-of-the-art in grid portals, based

  13. A Portal for Grid-enabled Physics Brett Beeson1

    E-Print Network [OSTI]

    Buyya, Rajkumar

    A Portal for Grid-enabled Physics Brett Beeson1 Steve Melnikoff1 Srikumar Venugopal2 David G@cs.mu.oz.au Abstract This paper presents the motivation for development and implementation of a computational portal for the processing of astrophysical and high energy physics data on global Grids. The requirements for the portal

  14. The Nimrod Portal Colin Enticott and David Abramson

    E-Print Network [OSTI]

    Melbourne, University of

    The Nimrod Portal Colin Enticott and David Abramson Faculty of Information Technology, Monash, etc) to be present. In order to simplify Nimrod/G access, we have developed a Web based portal machine. The portal contains features that allow a user to manage their entire Grid workspace, including

  15. Grid portal architectures for scientific applications M. P. Thomas

    E-Print Network [OSTI]

    Grid portal architectures for scientific applications M. P. Thomas 1 , J. Burruss 2 , L. Cinquini 3 to these codes is often a technical and sociological challenge. Portals help bridge the gap because they are well to the user. This paper presents an overview of the current state-of-the-art in grid portals, based

  16. Web Services Based Architecture in Computational Web Portals

    E-Print Network [OSTI]

    Web Services Based Architecture in Computational Web Portals By Choonhan Youn B.S. The University___________________________________ #12;Abstract Computational web portals provide user environments that simplify access and integrate. The computational web portal, Gateway, consists of a dynamically generated and browser-based user interface

  17. Photonic dark matter portal and quantum physics

    E-Print Network [OSTI]

    S. A. Alavi; F. S. Kazemian

    2015-06-14

    We study a model of dark matter in which the hidden sector interacts with standard model particles via a hidden photonic portal. We investigate the effects of this new interaction on the hydrogen atom, including the Stark, Zeeman and hyperfine effects. Using the accuracy of the measurement of energy, we obtain an upper bound for the coupling constant of the model. We also calculate the contribution from the hidden photonic portal to the anomalous magnetic moment of the muon, which provides an important probe of physics beyond the standard model.

  18. FOREST INVENTORY Managing Forest Ecosystems

    E-Print Network [OSTI]

    #12;FOREST INVENTORY #12;Managing Forest Ecosystems Volume 10 Series Editors: Klaus von Gadow Georg Superior de Agronomía, Lisbon, Portugal Aims & Scope: Well-managed forests and woodlands are a renewable resource, producing essential raw material with minimum waste and energy use. Rich in habitat and species

  19. Effects of selective logging on tropical forest tree growth

    E-Print Network [OSTI]

    2008-01-01

    exchange of carbon and water in an Amazonian rain forest, J.water content cannot explain the increases in diameter observed before the onset of rains.

  20. Aboveground carbon biomass of plantation-grown American chestnut (Castanea dentata) in absence of blight

    E-Print Network [OSTI]

    ). Forested ecosystems may help contribute toward carbon sequestration by capturing and storing atmospheric CO forests for carbon sequestration. Forest Ecology and Management 258 (2009) 288­294 A R T I C L E I N F O Keywords: Afforestation Carbon sequestration Competition Forest restoration Plantation establishment A B

  1. LOUISIANA STATE UNIVERSITY HOTELPLANNER PROGRAM PORTAL INSTRUCTIONS

    E-Print Network [OSTI]

    Harms, Kyle E.

    Planner portal is available on the AP & Travel website under Travel at: http://www.fas.lsu.edu/AcctServices/acctpay/or directly at: http://louisiana.hotelplanner.com/?sc=Louisiana_LSU. Please be advised that it is always a relationship with the University. Request a search for one (1) room at a time, as some hotels may have a very

  2. Long-run Implications of a Forest-based Carbon Sequestration Policy on the United States Economy: A Computable General Equilibrium (CGE) Modeling Approach 

    E-Print Network [OSTI]

    Monge, Juan

    2012-10-19

    The economic impacts of a government-funded, forest-based sequestration program were analyzed under two different payment schemes. The impacts were obtained by developing a regional, static CGE model built to accommodate a modified IMPLAN SAM for a...

  3. Percutaneous Transumbilical Portal Vein Embolization in a Patient with a Ruptured Hepatocellular Carcinoma Supplied by the Portal Vein

    SciTech Connect (OSTI)

    Kim, Soo Chin; Kim, Hyo-Cheol Chung, Jin Wook; Jae, Hwan Jun; Park, Jae Hyung

    2011-02-15

    We describe a case of a ruptured hepatocellular carcinoma supplied by the portal vein that was successfully treated with portal vein embolization via a percutaneous transumbilical approach. A contrast material-enhanced computed tomographic (CT) scan showed the presence of a large hypervascular tumor on portal venous phase as well as right hepatic vein thrombosis and hemoperitoneum that prevented portal vein embolization by the use of the percutaneous and transjugular transhepatic approach. The use of percutaneous transumbilical portal vein embolization can be an alternative option in this situation.

  4. Lamellar Zeolites - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLake Charles Carbon Capture

  5. Carbon Accounting and Economic Model Uncertainty of Emissions from Biofuels-Induced Land Use Change

    E-Print Network [OSTI]

    Plevin, Richard J; Beckman, Jayson; Golub, Alla A; Witcover, Julie; O'??Hare, Michael

    2015-01-01

    uncertainty of full carbon accounting of forest ecosystemsA. ; Hopson, E. , Proper accounting for time increases crop-use change modeling in GTEM: Accounting for forest sinks.

  6. Carbon mitigation potential and costs of forestry options in Brazil, China, India, Indonesia, Mexico, the Phillippines and Tanzania

    E-Print Network [OSTI]

    Sathaye, J.

    2008-01-01

    potential for carbon sequestration and emission reductionForestry Options on Carbon Sequestration in India, Workinggas emissions and carbon sequestration in the forest sector

  7. The North American Forest Sector Outlook Study

    E-Print Network [OSTI]

    to consumption patterns for wood products and bioenergy. Markets for wood products, which mainly are destined in the forest sector of North America 21 3.1 Forest inventory 21 3.2 Aggregate production, consumption, Canada, carbon sequestration, climate change, consumption, demand, econometric, EFSOS, export, fellings

  8. Research Report Forests and carbon

    E-Print Network [OSTI]

    mitigation, discounting, emissions trading, forestry, quality assurance, risk management, sequestration

  9. A long-term record of carbon exchange in a boreal black spruce forest: means, responses to interannual variability, and decadal trends

    E-Print Network [OSTI]

    Dunn, AL; Barford, CC; Wofsy, SC; Goulden, ML; Daube, BC

    2007-01-01

    the growing season (OGS and EGS, respectively) as the firstthe influence of OGS, EGS, and LGS on the annual carbon

  10. Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009)

    E-Print Network [OSTI]

    2010-01-01

    K. G. : Direct carbon emissions from Canadian forest fires,O. , and Merlet, P. : Emission of trace gases and aerosolsEstimating direct carbon emissions from Canadian wildland

  11. 11 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTORT/FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    market signals for forest products, including energy. As stated by the Intergovernmental Panel on Climate11 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTORT it's time to get the policy right on biomass energy carbon accounting The clock is ticking

  12. Visual Information Systems Pr. Robert Laurini Chapter VI: Visual Portals to Multimedia Information Systems 1

    E-Print Network [OSTI]

    Laurini, Robert

    Visual Information Systems Pr. Robert Laurini Chapter VI: Visual Portals to Multimedia Information Systems 1 Chapter VI Visual Portals to Multimedia Information Systems http://puebla.turista.com.mx/ What is a portal? · Portal = an entry mechanism for an information system · A good portal = a portail allowing

  13. Phase contrast portal imaging using synchrotron radiation

    SciTech Connect (OSTI)

    Umetani, K.; Kondoh, T.

    2014-07-15

    Microbeam radiation therapy is an experimental form of radiation treatment with great potential to improve the treatment of many types of cancer. We applied a synchrotron radiation phase contrast technique to portal imaging to improve targeting accuracy for microbeam radiation therapy in experiments using small animals. An X-ray imaging detector was installed 6.0 m downstream from an object to produce a high-contrast edge enhancement effect in propagation-based phase contrast imaging. Images of a mouse head sample were obtained using therapeutic white synchrotron radiation with a mean beam energy of 130 keV. Compared to conventional portal images, remarkably clear images of bones surrounding the cerebrum were acquired in an air environment for positioning brain lesions with respect to the skull structure without confusion with overlapping surface structures.

  14. Heavy Dark Matter Through the Higgs Portal

    E-Print Network [OSTI]

    John March-Russell; Stephen M. West; Daniel Cumberbatch; Dan Hooper

    2008-06-17

    Motivated by Higgs Portal and Hidden Valley models, heavy particle dark matter that communicates with the supersymmetric Standard Model via pure Higgs sector interactions is considered. We show that a thermal relic abundance consistent with the measured density of dark matter is possible for masses up to $\\sim 30\\tev$. For dark matter masses above $\\sim 1\\tev$, non-perturbative Sommerfeld corrections to the annihilation rate are large, and have the potential to greatly affect indirect detection signals. For large dark matter masses, the Higgs-dark-matter-sector couplings are large and we show how such models may be given a UV completion within the context of so-called "Fat-Higgs" models. Higgs Portal dark matter provides an example of an attractive alternative to conventional MSSM neutralino dark matter that may evade discovery at the LHC, while still being within the reach of current and upcoming indirect detection experiments.

  15. Portal Vein Embolization: What Do We Know?

    SciTech Connect (OSTI)

    Denys, Alban; Prior, John; Bize, Pierre; Duran, Rafael; Baere, Thierry De; Halkic, Nermin; Demartines, Nicolas

    2012-10-15

    Portal vein embolization (PVE) has been developed to increase the size of the future remnant liver (FRL) left in place after major hepatectomy, thus reducing the risk of postoperative liver insufficiency. PVE consist in embolizing preoperatively portal branches of the segments that will be resected. Indication is based on preoperative measurements of the FRL by computed tomography and its ratio with either the theoretical liver volume or by direct measurement of the functional liver volume. After PVE, the volume and function of the FRL increases in 3 to 6 weeks, permitting extensive resections in patients otherwise contraindicated for liver resection. The PVE technique is variable from one center to another; however n-butyl-cyano-acrylate provides an interesting compromise between hypertrophy rate and procedure risk.

  16. Sunshot Initiative High Penetration Solar Portal

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

    The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost-competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread large-scale adoption of this renewable energy and restore U.S. leadership in the global clean energy race. The High Penetration Solar Portal was created as a resource to aggregate the most relevant and timely information related to high penetration solar scenarios and integrating solar into the grid. The site is designed so that utilities, grant awardees, regulators, researchers, and other solar professionals can easily share data, case studies, lessons learned, and demonstration project findings. [from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal

  17. Sustainable Forest Bioenergy Initiative

    SciTech Connect (OSTI)

    Breger, Dwayne; Rizzo, Rob

    2011-09-20

    In the state’s Electricity Restructuring Act of 1998, the Commonwealth of Massachusetts recognized the opportunity and strategic benefits to diversifying its electric generation capacity with renewable energy. Through this legislation, the Commonwealth established one of the nation’s first Renewable Energy Portfolio Standard (RPS) programs, mandating the increasing use of renewable resources in its energy mix. Bioenergy, meeting low emissions and advanced technology standards, was recognized as an eligible renewable energy technology. Stimulated by the state’s RPS program, several project development groups have been looking seriously at building large woody biomass generation units in western Massachusetts to utilize the woody biomass resource. As a direct result of this development, numerous stakeholders have raised concerns and have prompted the state to take a leadership position in pursuing a science based analysis of biomass impacts on forest and carbon emissions, and proceed through a rulemaking process to establish prudent policy to support biomass development which can contribute to the state’s carbon reduction commitments and maintain safeguards for forest sustainability. The Massachusetts Sustainable Forest Bioenergy Initiative (SFBI) was funded by the Department of Energy and started by the Department of Energy Resources before these contentious biomass issues were fully raised in the state, and continued throughout the substantive periods of this policy development. Thereby, while SFBI maintained its focus on the initially proposed Scope of Work, some aspects of this scope were expanded or realigned to meet the needs for groundbreaking research and policy development being advanced by DOER. SFBI provided DOER and the Commonwealth with a foundation of state specific information on biomass technology and the biomass industry and markets, the most comprehensive biomass fuel supply assessment for the region, the economic development impact associated with biomass usage, an understanding of forest management trends including harvesting and fuel processing methods, and the carbon profile of utilizing forest based woody biomass for the emerging biomass markets. Each of the tasks and subtasks have provided an increased level of understanding to support new directives, policies and adaptation of existing regulations within Massachusetts. The project has provided the essential information to allow state policymakers and regulators to address emerging markets, while ensuring forest sustainability and understanding the complex science on CO2 accounting and impacts as a result of biomass harvesting for power generation. The public at large and electricity ratepayers in Massachusetts will all benefit from the information garnered through this project. This is a result of the state’s interest to provide financial incentives to only biomass projects that demonstrate an acceptable carbon profile, an efficient use of the constrained supply of fuel, and the harvest of biomass to ensure forest sustainability. The goals of the Massachusetts Sustainable Forest Bioenergy Initiative as proposed in 2006 were identified as: increase the diversity of the Massachusetts energy mix through biomass; promote economic development in the rural economy through forest industry job creation; help fulfill the state’s energy and climate commitments under the Renewable Energy Portfolio Standard and Climate Protection Plan; assist the development of a biomass fuel supply infrastructure to support energy project demands; provide education and outreach to the public on the benefits and impacts of bioenergy; improve the theory and practice of sustainable forestry in the Commonwealth. Completed project activities summarized below will demonstrate the effectiveness of the project in meeting the above goals. In addition, as discussed above, Massachusetts DOER needed to make some modifications to its work plan and objectives during the term of this project due to changing public policy demands brought forth in the course of the public discours

  18. TITLE XVII APPLICATION PORTAL | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report15 Meeting StateOctoberSustainable Federal8,Department ofPORTAL

  19. ATVM APPLICATION PORTAL | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar: DemonstrationProgram |to Hold Sixth AnnualPORTAL ATVM

  20. NATCARB Interactive Maps and the National Carbon Explorer: a National Look at Carbon Sequestration

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

    NATCARB is a national look at carbon sequestration. The NATCARB home page, National Carbon Explorer (http://www.natcarb.org/) provides access to information and interactive maps on a national scale about climate change, DOE's carbon sequestration program and its partnerships, CO2 emissions, and sinks. This portal provides access to interactive maps based on the Carbon Sequestration Atlas of the United States and Canada.

  1. Advanced Carbon Aerogels for Energy Applications - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden DocumentationAccommodationsRegister / Vol.ConferenceAdolphusProgramCSP

  2. Advanced Forms of Activated Carbon - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden DocumentationAccommodationsRegister /Advancedenzyme mixtures to meetShutter

  3. Thermal Management Using Carbon Nanotubes - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. Jeffrey

  4. Ionic Liquid Sorbents for Carbon Capture - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATIONIntroducing the RichardBudget andthe Search forAdvanced

  5. Kevlar and Carbon Composite Armored Gauntlet - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand Cubic Feet) SoldDepartment ofKenThousandtheKevlar and

  6. Mega-Pore Nano-Structured Carbon - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELINGMeetings High Energy PhysicsEnergy

  7. V-152: Cisco Unified Customer Voice Portal (CVP) Multiple Vulnerabilit...

    Broader source: Energy.gov (indexed) [DOE]

    Multiple vulnerabilities have been reported in Cisco Unified Customer Voice Portal (CVP) PLATFORM: The vulnerabilities are reported in versions prior to 9.0.1 ES 11 ABSTRACT:...

  8. T-686: IBM Tivoli Integrated Portal Java Double Literal Denial...

    Broader source: Energy.gov (indexed) [DOE]

    password) PLATFORM: Tivoli versions prior to 1.1.1.15. ABSTRACT: IBM Tivoli Integrated Portal Java Double Literal Denial of Service Vulnerability. reference LINKS: IBM ID: 1508061...

  9. Microbes Online: an integrated portal for comparative functional genomics

    E-Print Network [OSTI]

    Arkin, Adam P.

    2014-01-01

    understand mechanisms by which microbes survive in uncertainMicrobes Online: an integrated portal for comparativecerevisiae to environmental microbes such as Desulfovibrio

  10. Portal alumni Universitt Potsdam 11/2014 alumniDas Ehemaligen-Magazin der Universitt Potsdam

    E-Print Network [OSTI]

    Potsdam, Universität

    1 editorial Portal alumni Universität Potsdam 11/2014 alumniDas Ehemaligen-Magazin der Universität Potsdam Heft 11 · Dezember 2014 Portal Irgendwas mit Medien Potsdamer Absolventen kommunizieren beruflich 2015 50 Inhalt Portal alumni Das Ehemaligen

  11. TeachSpatial: A Portal to Instructional Resources on Spatial Concepts for STEM Education, Final Report

    E-Print Network [OSTI]

    Janelle, Donald G.; Grossner, Karl; Lenaburg, Lubella

    2012-01-01

    the TeachSpatial NSDL resource portal III. Phase Three Building a spatial web portal A. Technical integration with Benchmarks II. The Web Portal A PPENDIX  A—S URVEY  R

  12. For Immediate Release --Tuesday, November 25, 2014 University of Lethbridge introduces ULink web portal as

    E-Print Network [OSTI]

    Morris, Joy

    of Lethbridge introduces ULink web portal as latest addition to student service supports as the new student web portal has officially been named and launched. ULink, the new web portal, is the latest initiative designed to further optimize

  13. The Genome Portal of the Department of Energy Joint Genome Institute

    E-Print Network [OSTI]

    Grigoriev, Igor V.

    2014-01-01

    The Genome Portal of the Department of Energy Joint Genome 10.1093/nar/gkr947 The Genome Portal of the Department ofthe web. The JGI Genome Portal (http://genome.jgi.doe.gov)

  14. CHINA AND FOREST TRADE IN THE ASIA-PACIFIC REGION: IMPLICATIONS FOR FORESTS AND LIVELIHOODS

    E-Print Network [OSTI]

    in Endangered Species. For further information please contact: R. Juge Gregg, Washington, DC, rjgregg for ecosystem services provided by forests such as watershed protection, biodiversity and carbon storage. Forest NGOs and investment institutions. For further information, please contact: Kerstin Canby, kcanby

  15. ESnet Releases Open Source Software from MyESnet Portal for Building...

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

    Releases Open Source Software from MyESnet Portal for Building Online Interactive Network Portals News & Publications ESnet News Media & Press Publications and Presentations...

  16. Reducing uncertainty in predictions of the response of Amazonian forests to climate change 

    E-Print Network [OSTI]

    Rowland, Lucy Miranda

    2013-07-01

    Amazonia contains the largest expanse of tropical forest in the world and is globally significant as a store of carbon, a regulator of climate and an area of high species diversity. The ability of the Amazonian forests ...

  17. UNFCCC-Finance Portal | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: EnergyU.S. EPA Region 10InformationFinance Portal

  18. Novel Thermophilic Cellobiohydrolase - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarshipThreeFebruaryMuseumEffect901PortalReport)

  19. Trojan Horse Project - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.WeekProducts[TRI-PARTYInnovation Portal

  20. Tropexx - Blending System - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.WeekProducts[TRI-PARTYInnovation PortalIndustrial

  1. High Temperature Interfacial Superconductivity - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptionsthroughputEnergySalaryInnovation Portal

  2. Laser Induced Spectroscopy - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and- Energy Innovation Portal

  3. FORESTS AND WATER. effects of forest

    E-Print Network [OSTI]

    FORESTS AND WATER. effects of forest management on floods, sedimentation, and water supply HENRY FOREST SERVICE GENERAL TECHNICAL REPORT PSW- 18I1976 #12;CONTENTS Page Introduction ................................ 6 Water Inputs .........................................6 Precipitation Measurement

  4. Evolution and Usage of the Portal Data Archive

    E-Print Network [OSTI]

    Bertini, Robert L.

    + Evolution and Usage of the Portal Data Archive: A Ten-Year Retrospective Kristin Tufte,Robert L Page today... Portal's Own Map! Vancouver,WA New Sensors & New Data Feed #12;+ Home Page ­ Evolution - Two Quantities -Updated technology -Data download #12;+ Timeseries Plot ­ Evolution ! Updated

  5. Music in the ETH Zurich Multimedia Portal July 20 2009

    E-Print Network [OSTI]

    Lygeros, John

    1 / 1 Music in the ETH Zurich Multimedia Portal July 20 2009 The multimedia portal provides internet distribution of ETH audiovisual content. In the case where this includes music, copyrights must be clarified with SUISA, the Cooperative Society of Music Authors and Publishers in Switzerland

  6. Enhancing meta-portals using dynamic user context personalization techniques

    E-Print Network [OSTI]

    -portal is an informational node where articles from different sources are collected and presented in a categorized , Vassilis Poulopoulos Research Academic Computer Technology Institute and Computer Engineer and Informatics-portal a b s t r a c t The Internet is flooded with information and the last decade its size has grown so

  7. Forests 2012, 3, 370-397; doi:10.3390/f3020370 ISSN 1999-4907

    E-Print Network [OSTI]

    DeLucia, Evan H.

    for bioenergy without compromising the carbon sink is uncertain. Using past literature and previously validated that could be used for biomass production. Greater carbon storage was estimated to result from partial.mdpi.com/journal/forests Review Harvesting Carbon from Eastern US Forests: Opportunities and Impacts of an Expanding Bioenergy

  8. Fire-related carbon emissions from land use transitions in southern Amazonia

    E-Print Network [OSTI]

    2008-01-01

    2008 Fire-related carbon emissions from land use transitionsto atmospheric carbon emissions, including forest conversionthe major sources of emissions from fires in this region.

  9. Higgs portal valleys, stability and inflation

    E-Print Network [OSTI]

    Guillermo Ballesteros; Carlos Tamarit

    2015-09-30

    The measured values of the Higgs and top quark masses imply that the Standard Model potential is very likely to be unstable at large Higgs values. This is particularly problematic during inflation, which sources large perturbations of the Higgs. The instability could be cured by a threshold effect induced by a scalar with a large vacuum expectation value and directly connected to the Standard Model through a Higgs portal coupling. However, we find that in a minimal model in which the scalar generates inflation, this mechanism does not stabilize the potential because the mass required for inflation is beyond the instability scale. This conclusion does not change if the Higgs has a direct weak coupling to the scalar curvature. On the other hand, if the potential is absolutely stable, successful inflation in agreement with current CMB data can occur along a valley of the potential with a Mexican hat profile. We revisit the stability conditions, independently of inflation, and clarify that the threshold effect cannot work if the Higgs portal coupling is too small. We also show that inflation in a false Higgs vacuum appearing radiatively for a tuned ratio of the Higgs and top masses leads to an amplitude of primordial gravitational waves that is far too high, ruling out this possibility.

  10. 4, 99123, 2007 Amazon carbon

    E-Print Network [OSTI]

    Boyer, Edmond

    , suggested much larger estimates for tropical forest carbon sequestration in the Ama- zon BasinBGD 4, 99­123, 2007 Amazon carbon balanc J. Lloyd et al. Title Page Abstract Introduction Discussions is the access reviewed discussion forum of Biogeosciences An airborne regional carbon balance

  11. Using J2EE Web Services for the Implementation of an Application on Demand Portal

    E-Print Network [OSTI]

    Using J2EE Web Services for the Implementation of an Application on Demand Portal Ch. Bouras@cti.gr Abstract This paper describes the design of the ASP-NG portal, which is a portal for providing the user with the necessary interface in order to access an Application on Demand (AoD) service. The ASP-NG portal

  12. Portal Replication for Web Application Availability Via SOAP Simon Woodman, Graham Morgan & Simon Parkin

    E-Print Network [OSTI]

    Morgan, Graham

    Portal Replication for Web Application Availability Via SOAP Simon Woodman, Graham Morgan & Simon mechanism for achieving this is via the use of portals. A portal may provide clients with a single point. As a single point of access to many services, a portal may present a single point of failure. The provision

  13. Portal-Based True-Distance Heuristics for Path Finding Meir Goldenberg

    E-Print Network [OSTI]

    Schaeffer, Jonathan

    Portal-Based True-Distance Heuristics for Path Finding Meir Goldenberg Information Systems. In this paper, we introduce a new TDH, the portal-based heuristic. The domain is partitioned into regions and portals between regions are identified. True distances be- tween all pairs of portals are stored and used

  14. Grid Portal Interface for Interactive Use and Monitoring of High-Throughput Proteome

    E-Print Network [OSTI]

    Bourne, Philip E.

    Grid Portal Interface for Interactive Use and Monitoring of High-Throughput Proteome Annotation, #12;54 A. Shahab et al. portal solution for grid computing in life sciences under the auspices, and the use of a GridSpeed [6] generated iGAP application portal are described. The portal solution was part

  15. Energy Innovation Portal: Linking Energy Technologies with Market Opportunities (Revised) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01

    One page flyer that describes the EERE Energy Innovation Portal. Includes list of technology categories.

  16. The Legion Grid Portal Anand Natrajan, Anh Nguyen-Tuong, Marty A. Humphrey, Andrew S. Grimshaw

    E-Print Network [OSTI]

    Grimshaw, Andrew

    1 The Legion Grid Portal Anand Natrajan, Anh Nguyen-Tuong, Marty A. Humphrey, Andrew S. Grimshaw Abstract -- The Legion Grid Portal is an interface to a grid system. Users interact with the portal, and view accounting information. The architecture of the portal is designed to accommodate multiple diverse

  17. Portal dosimetry for VMAT using integrated images obtained during treatment

    SciTech Connect (OSTI)

    Bedford, James L. Hanson, Ian M.; Hansen, Vibeke Nordmark

    2014-02-15

    Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% ± 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% ± 1.0%. The method was highly sensitive to errors in monitor units and field shape, but less sensitive to errors in gantry angle or phantom position. Conclusions: This method of predicting integrated portal images provides a convenient means of verifying dose delivered using VMAT, with minimal image acquisition and data processing requirements.

  18. Radiation portal monitor system and method

    DOE Patents [OSTI]

    Morris, Christopher (Los Alamos, NM); Borozdin, Konstantin N. (Los Alamos, NM); Green, J. Andrew (Los Alamos, NM); Hogan, Gary E. (Los Alamos, NM); Makela, Mark F. (Los Alamos, NM); Priedhorsky, William C. (Los Alamos, NM); Saunders, Alexander (Los Alamos, NM); Schultz, Larry J. (Los Alamos, NM); Sossong, Michael J. (Los Alamos, NM)

    2009-12-15

    A portal monitoring system has a cosmic ray charged particle tracker with a plurality of drift cells. The drift cells, which can be for example aluminum drift tubes, can be arranged at least above and below a volume to be scanned to thereby track incoming and outgoing charged particles, such as cosmic ray muons, whilst also detecting gamma rays. The system can selectively detect devices or materials, such as iron, lead, gold and/or tungsten, occupying the volume from multiple scattering of the charged particles passing through the volume and can also detect any radioactive sources occupying the volume from gamma rays emitted therefrom. If necessary, the drift tubes can be sealed to eliminate the need for a gas handling system. The system can be employed to inspect occupied vehicles at border crossings for nuclear threat objects.

  19. A second Higgs from the Higgs portal

    E-Print Network [OSTI]

    Adam Falkowski; Christian Gross; Oleg Lebedev

    2015-04-15

    In the Higgs portal framework, the Higgs field generally mixes with the Standard Model singlet leading to the existence of two states, one of which is identified with the 125 GeV scalar observed at the LHC. In this work, we analyse direct and indirect constraints on the second mass eigenstate and the corresponding mixing angle. The existence of the additional scalar can be beneficial as it can stabilise the otherwise-metastable electroweak vacuum. We find parameter regions where all of the bounds, including the stability constraints, are satisfied. We also study prospects for observing the decay of the heavier state into a pair of the 125 GeV Higgs-like scalars.

  20. Higgs Portal Vector Dark Matter : Revisited

    E-Print Network [OSTI]

    Seungwon Baek; P. Ko; Wan-Il Park; Eibun Senaha

    2013-04-15

    We revisit the Higgs portal vector dark matter model including a hidden sector Higgs field that generates the mass of the vector dark matter. The model becomes renormalizable and has two scalar bosons, the mixtures of the standard model (SM) Higgs and the hidden sector Higgs bosons. The strong bound from direct detection such as XENON100 is evaded due to the cancellation mechanism between the contributions from two scalar bosons. As a result, the model becomes still viable in large range of dark matter mass, contrary to some claims in the literature. The Higgs properties are also affected, the signal strengths for the Higgs boson search being universally suppressed relative to the SM value, which could be tested at the LHC in the future.

  1. Dark Matter Through the Neutrino Portal

    E-Print Network [OSTI]

    Adam Falkowski; Jose Juknevich; Jessie Shelton

    2009-08-13

    We consider a model of dark matter whose most prominent signature is a monochromatic flux of TeV neutrinos from the galactic center. As an example of a general scenario, we consider a specific model where the dark matter is a fermion in the adjoint representation of a hidden SU(N) gauge group that confines at GeV energies. The absence of light fermionic states in the dark sector ensures stability of dark matter on cosmological time scales. Dark matter couples to the standard model via the neutrino portal, that is, the singlet operator H L constructed from the Higgs and lepton doublets, which is the lowest dimensional fermionic singlet operator in the standard model. This coupling prompts dark matter decay where the dominant decay channel has one neutrino (and at least one dark glueball) in the final state. Other decay channels with charged standard model particles involve more particles in the final state and are therefore suppressed by phase space. In consequence, the standard indirect detection signals like gamma-ray photons, antiprotons and positrons are suppressed with respect to the neutrino signal. This coupling via the neutrino portal is most robustly constrained by Super-Kamiokande, which restricts the dark matter lifetime to be larger than 10^25 seconds. In the near future, the scenario will be probed by the new generation of neutrino telescopes. ANTARES will be sensitive to a dark matter lifetime of order 10^26 seconds, while IceCube/DeepCore can probe a lifetime as large as 10^27 seconds.

  2. Student Accounts portal How To's Listed below are some links for step-by-step instructions for various parts of your Student Account portal.

    E-Print Network [OSTI]

    Branoff, Theodore J.

    Student Accounts portal How To's Listed below are some links for step-by-step instructions for various parts of your Student Account portal. Click on the title to take you to the article. Overview

  3. This documentation will demonstrate the process of changing or resetting your password through the Siena College Password Reset Portal. Once a user has been registered at the Portal, a user will be able

    E-Print Network [OSTI]

    the Siena College Password Reset Portal. Once a user has been registered at the Portal, a user will be able to use the Password Reset Portal to (1) change their password when they already know their password MUST be registered for the Portal before you can change your password! Using the Password Reset Portal

  4. Integrating Personal Web Data through Semantically Enhanced Web Portal

    E-Print Network [OSTI]

    Integrating Personal Web Data through Semantically Enhanced Web Portal Lidia Rovan, Tomislav Jagust: Currently, the World Wide Web is mostly composed of isolated and loosely connected "data islands Web usage process. Creating infrastructure that would support automation of that process

  5. The Portals 4.0 network programming interface.

    SciTech Connect (OSTI)

    Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin Thomas Tauke; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E.; Underwood, Keith Douglas; Maccabe, Arthur Bernard; Hudson, Trammell B.

    2012-11-01

    This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandia's Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities.

  6. The portals 4.0.1 network programming interface.

    SciTech Connect (OSTI)

    Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin Thomas Tauke; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E.; Underwood, Keith Douglas; Maccabe, Arthur Bernard; Hudson, Trammell B.

    2013-04-01

    This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandia's Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities. 3

  7. DOE Energy Innovation Portal Connects Innovative Energy Technologies...

    Broader source: Energy.gov (indexed) [DOE]

    at these two National Laboratories are enabling Ampulse to develop more efficient and lower cost thin-film photovoltaic devices. The Portal is one of the many tools the...

  8. CLIMATE-Energy data portal ... | ornl.gov

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

    CLIMATE - Energy data portal ... A new addition to Data.gov, home of the U.S. government's open data, focuses on the connection between climate change and the nation's energy...

  9. Endovascular Treatment of a Portal Vein Tear During TIPSS

    SciTech Connect (OSTI)

    Owen, Richard J.T.; Rose, John D.G. [Department of Clinical Radiology, Freeman Hospital, Newcastle upon Tyne, NE7 7DN (United Kingdom)

    2000-03-15

    During a transjugular portosystemic stent-shunt (TIPSS) procedure a portal vein laceration occurred with subsequent intraperitoneal hemorrhage. A PTFE-covered nitinol stent was successfully placed eliminating the leak and creating a functioning portosystemic shunt. This case demonstrates both the importance of portal vein puncture more than 1 cm from the bifurcation and the necessity of maintaining a stock of available stent-grafts.

  10. Toward a consistency cross-check of eddy covariance flux–based and biometric estimates of ecosystem carbon balance

    E-Print Network [OSTI]

    2009-01-01

    estimates of annual carbon sequestration in a Sitka spruce (carbon cycling in a temperate forest: Radiocarbon-based estimates of residence times, sequestration

  11. Review: Forest Economics

    E-Print Network [OSTI]

    Helman, Daniel S.

    2015-01-01

    Review: Forest Economics By Daowei Zhang and Peter H. PearsePearse, Peter H. Forest Economics. Vancouver, BC: UBC Press,Zhang and Pearse's Forest Economics presents a clear and

  12. Leaf traits and foliar CO2 exchange in a Peruvian tropical montane cloud forest 

    E-Print Network [OSTI]

    Van de Weg, Marjan

    2011-06-28

    Tropical montane cloud forests (TMCF) are one of the most fascinating, but least understood ecosystems in the world, and the interest in the carbon (C) cycle of TMCFs with regard to carbon sequestration and storage ...

  13. Research Summary The EU Emissions Trading System: Opportunities for Forests?

    E-Print Network [OSTI]

    Research Summary The EU Emissions Trading System: Opportunities for Forests? European forestry has sequestration provided by European forests has not been recognised by markets. The EU Emissions Trading System as part of a wider review covering emerging carbon markets. Background The EU Emissions Trading Scheme

  14. Reynolda Campus Wake Forest

    E-Print Network [OSTI]

    Anderson, Paul R.

    Reynolda Campus Wake Forest University Wake Forest University Reynolda Campus Office of Research than NIH and NSF, such as the Departments of Commerce, Energy, Homeland Security, and State

  15. Climate change cripples forests

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

    Climate Change Cripples Forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  16. Climate change cripples forests

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

    Climate change cripples forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  17. FACTS II (Aspen FACE) Facility and Harshaw Forest Experimental Farm Facility

    E-Print Network [OSTI]

    ;Project Name: Forest Atmosphere Carbon Transfer and Storage (FACTS-II) The Aspen Free-air CO2 and O3 Enrichment (FACE) Project. Project Number: Site: Harshaw Forest Experimental Farm (HFEF) USDA Forest ServiceUniversity Brookhaven National Laboratory Proposed Dates Beginning Date: May 1998 of Project: Ending Date: October 15

  18. Singlet Portal to the Hidden Sector

    E-Print Network [OSTI]

    Clifford Cheung; Yasunori Nomura

    2010-08-30

    Ultraviolet physics typically induces a kinetic mixing between gauge singlets which is marginal and hence non-decoupling in the infrared. In singlet extensions of the minimal supersymmetric standard model, e.g. the next-to-minimal supersymmetric standard model, this furnishes a well motivated and distinctive portal connecting the visible sector to any hidden sector which contains a singlet chiral superfield. In the presence of singlet kinetic mixing, the hidden sector automatically acquires a light mass scale in the range 0.1 - 100 GeV induced by electroweak symmetry breaking. In theories with R-parity conservation, superparticles produced at the LHC invariably cascade decay into hidden sector particles. Since the hidden sector singlet couples to the visible sector via the Higgs sector, these cascades necessarily produce a Higgs boson in an order 0.01 - 1 fraction of events. Furthermore, supersymmetric cascades typically produce highly boosted, low-mass hidden sector singlets decaying visibly, albeit with displacement, into the heaviest standard model particles which are kinematically accessible. We study experimental constraints on this broad class of theories, as well as the role of singlet kinetic mixing in direct detection of hidden sector dark matter. We also present related theories in which a hidden sector singlet interacts with the visible sector through kinetic mixing with right-handed neutrinos.

  19. ProPortal: A Database for Prochlorococcus

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

    Huang, Katherine [Chisholm lab, MIT

    Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans, and is the smallest known oxygenic phototroph. All isolates described thus far can be assigned to either a tightly clustered high-light (HL) adapted clade, or a more divergent low-light (LL) adapted group. They are closely related to, but distinct from, marine Synechococcus. The genomes of 12 strains have been sequenced and they range in size from 1.6 to 2.6 Mbp. They represent diverse lineages, spanning the rRNA diversity (97 to 99.93% similarity) of cultured representatives of this group. Our analyses of these genomes inform our understanding of how adaptation occurs in the oceans along gradients of light, nutrients, and other environmental factors, providing essential context for interpreting rapidly expanding metagenomic datasets. [Copied from http://proportal.mit.edu/project/prochlorococcus/] ProPortal allows users to browse and search genome date for not only Prochlorococcus, but Cyanophage and Synechococcus. Microarray data, environmental cell concentration data, and metagenome information are also available.

  20. A Nested Approach to REDD+: Structuring Effective and Transparent...

    Open Energy Info (EERE)

    REDD+ Implementation at Multiple Scales AgencyCompany Organization: Forest Carbon Portal Sector: Land Focus Area: Forestry Topics: Implementation, Policiesdeployment programs...

  1. Real-time, intercontinental dermatology teaching of trainee physicians in Somaliland using a dedicated social networking portal

    E-Print Network [OSTI]

    Ali, Faisal R; Bowen, Jordan ST; Strachan, Jamie M; Handuleh, Jibriil; Finlayson, Alexander ET

    2012-01-01

    dedicated social networking portal Faisal R Ali 1,2 , Jordaninnovative social networking portal, to deliver real-time,providing a web-based portal that combines the concepts of

  2. Estimation of tropical forest structural characteristics using large-footprint lidar

    E-Print Network [OSTI]

    Weishampel, John F.

    Estimation of tropical forest structural characteristics using large-footprint lidar Jason B in identifying the amount of carbon in terrestrial vegetation pools and is central to global carbon cycle studies. Although current remote sensing techniques recover such tropical forest structure poorly, new large-footprint

  3. ELSEVIER Agricultural and Forest Meteorology 90 (1998)291-306 AGRICULTURAL

    E-Print Network [OSTI]

    1998-01-01

    Forest-atmosphere carbon dioxide exchange in eastern Siberia D.Y. ~ o l l i n ~ e r ~ . ~ ? ' ,EM at a remote Siberian site during July and August of 1993. Our goal was to measure and partitton total C02; Stornatal control, Carbon balance; Boreal forest *Co~rc\\pondingauthor. Fax: 1 603 868 7604 0168

  4. The influence of warm-season precipitation on the diel cycle of the surface energy balance and carbon dioxide at a Colorado subalpine forest site

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

    Burns, S. P.; Blanken, P. D.; Turnipseed, A. A.; Hu, J.; Monson, R. K.

    2015-12-15

    Precipitation changes the physical and biological characteristics of an ecosystem. Using a precipitation-based conditional sampling technique and a 14 year data set from a 25 m micrometeorological tower in a high-elevation subalpine forest, we examined how warm-season precipitation affected the above-canopy diel cycle of wind and turbulence, net radiation Rnet, ecosystem eddy covariance fluxes (sensible heat H, latent heat LE, and CO2 net ecosystem exchange NEE) and vertical profiles of scalars (air temperature Ta, specific humidity q, and CO2 dry mole fraction ?c). This analysis allowed us to examine how precipitation modified these variables from hourly (i.e., the diel cycle)more »to multi-day time-scales (i.e., typical of a weather-system frontal passage). During mid-day we found the following: (i) even though precipitation caused mean changes on the order of 50–70 % to Rnet, H, and LE, the surface energy balance (SEB) was relatively insensitive to precipitation with mid-day closure values ranging between 90 and 110 %, and (ii) compared to a typical dry day, a day following a rainy day was characterized by increased ecosystem uptake of CO2 (NEE increased by ≈ 10 %), enhanced evaporative cooling (mid-day LE increased by ≈ 30 W m?2), and a smaller amount of sensible heat transfer (mid-day H decreased by ≈ 70 W m?2). Based on the mean diel cycle, the evaporative contribution to total evapotranspiration was, on average, around 6 % in dry conditions and between 15 and 25 % in partially wet conditions. Furthermore, increased LE lasted at least 18 h following a rain event. At night, even though precipitation (and accompanying clouds) reduced the magnitude of Rnet, LE increased from ≈ 10 to over 20 W m?2 due to increased evaporation. Any effect of precipitation on the nocturnal SEB closure and NEE was overshadowed by atmospheric phenomena such as horizontal advection and decoupling that create measurement difficulties. Above-canopy mean ?c during wet conditions was found to be about 2–3 ?mol mol?1 larger than ?c on dry days. This difference was fairly constant over the full diel cycle suggesting that it was due to synoptic weather patterns (different air masses and/or effects of barometric pressure). Finally, the effect of clouds on the timing and magnitude of daytime ecosystem fluxes is described.« less

  5. The effect of warm-season precipitation on the diel cycle of the surface energy balance and carbon dioxide at a Colorado subalpine forest site

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

    Burns, S. P.; Blanken, P. D.; Turnipseed, A. A.; Monson, R. K.

    2015-06-16

    Precipitation changes the physical and biological characteristics of an ecosystem. Using a precipitation-based conditional sampling technique and a 14 year dataset from a 25 m micrometeorological tower in a high-elevation subalpine forest, we examined how warm-season precipitation affected the above-canopy diel cycle of wind and turbulence, net radiation Rnet, ecosystem eddy covariance fluxes (sensible heat H, latent heat LE, and CO2 net ecosystem exchange NEE) and vertical profiles of scalars (air temperature Ta, specific humidity q, and CO2 dry mole fraction ?c). This analysis allowed us to examine how precipitation modified these variables from hourly (i.e., the diel cycle) tomore »multi-day time-scales (i.e., typical of a weather-system frontal passage). During mid-day we found: (i) even though precipitation caused mean changes on the order of 50–70% to Rnet, H, and LE, the surface energy balance (SEB) was relatively insensitive to precipitation with mid-day closure values ranging between 70–80%, and (ii) compared to a typical dry day, a day following a rainy day was characterized by increased ecosystem uptake of CO2 (NEE increased by ≈ 10%), enhanced evaporative cooling (mid-day LE increased by ≈ 30 W m-2), and a smaller amount of sensible heat transfer (mid-day H decreased by ≈ 70 W m-2). Based on the mean diel cycle, the evaporative contribution to total evapotranspiration was, on average, around 6% in dry conditions and 20% in wet conditions. Furthermore, increased LE lasted at least 18 h following a rain event. At night, precipitation (and accompanying clouds) reduced Rnet and increased LE. Any effect of precipitation on the nocturnal SEB closure and NEE was overshadowed by atmospheric phenomena such as horizontal advection and decoupling that create measurement difficulties. Above-canopy mean ?c during wet conditions was found to be about 2–3 ?mol mol-1 larger than ?c on dry days. This difference was fairly constant over the full diel cycle suggesting that it was due to synoptic weather patterns (different air masses and/or effects of barometric pressure). In the evening hours during wet conditions, weakly stable conditions resulted in smaller vertical ?c differences compared to those in dry conditions. Finally, the effect of clouds on the timing and magnitude of daytime ecosystem fluxes is described.« less

  6. PACIFIC SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    Columbia, Canada. ACKNOWLEDGMENTS I thank Lula E. Greene, Pacific Southwest Forest and Range Experi ment

  7. Forest soil CO2 flux: uncovering the contribution and environmental responses of ectomycorrhizas

    E-Print Network [OSTI]

    of human-induced climate change is critically dependent on the carbon (C) sequestration potential carbon cycle, being considered an important and continuing carbon sink. However, the response of carbon sequestration in forests to global climate change remains a major uncertainty, with a particularly poor under

  8. Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009)

    E-Print Network [OSTI]

    2010-01-01

    John- stone, J. F. : Quantifying fire severity, carbon, andfrom Canadian forest fires, 1959– 1999, Can. J. Forestwildland fires1, Int. J. Wildland Fire, 16, 593–606, doi:

  9. Development and analysis of a 12-year daily 1-km forest fire dataset across North America from NOAA/AVHRR data

    E-Print Network [OSTI]

    Li, Zhanqing

    Development and analysis of a 12-year daily 1-km forest fire dataset across North America from NOAA Forest Service, Fire Sciences Laboratory, P.O. Box 8089, Missoula, MT 59807, United States g NOAA forests play a significant role in the global carbon cycle. While forest fires in North America (NA) have

  10. Hepatocellular Carcinoma Invading the Main Portal Vein: Treatment with Transcatheter Arterial Chemoembolization and Portal Vein Stenting

    SciTech Connect (OSTI)

    Zhang Xuebin, E-mail: zhangxuebinwqy@163.com; Wang Jianhua, E-mail: wang.jianhua@zs-hospital.sh.cn; Yan Zhiping, E-mail: yan.zhiping@zs-hospital.sh.cn; Qian Sheng, E-mail: qian.sheng@zs-hospital.sh.cn; Liu Rong, E-mail: liu.rong@zs-hospital.sh.c [Fudan University, Department of Radiology, Zhong Shan Hospital (China)

    2009-01-15

    To retrospectively analyze the therapeutic results of percutaneous transhepatic portal vein stenting (PTPVS) and transcatheter arterial chemoembolization (TACE) treatment in 58 patients with hepatocellular carcinoma (HCC) invading the main portal vein (MPV). A total of 58 procedures of PTPVS were performed, immediately after which TACE was undertaken to control HCC. The clinical effects, complications, digital subtraction angiographic appearance, stent patency rates, cumulative survival rates, and predictive factors for survival were evaluated. The Kaplan-Meyer method and the log rank test were used for survival analysis. Multivariable analysis was also conducted by the Cox proportional hazard model. No patient died during stent placement or within the first 24 h. No severe procedure-related complications were observed. After stent placement, the mean {+-} standard deviation portal venous pressure levels decreased from 41.43 {+-} 8.56 cmH{sub 2}O to 37.19 {+-} 7.89 cmH{sub 2}O (p < 0.01). At the time of analysis, 9 of the 58 patients survived. The 60-, 180-, 360-, and 720-day cumulative patency rates were 98.1%, 71.0%, 52.6%, and 42.1%, respectively, with a mean patency time of 552.9 {+-} 88.2 days and a median patency time of 639.00 {+-} 310.00 (95% confidence interval [95% CI], 31.40-1246.60) days. The 60-, 180-, 360-, and 720-day cumulative survival rates for the total study population were 74.1%, 27.1%, 17.2%, and 13.8%, respectively, with a median survival time of 113 {+-} 27.29 (95% CI, 59.51-166.49) days. In the univariate analysis, the following six variables were significantly associated with the prognosis: (1) HCC type; (2) Child-Pugh grade; (3) MPV stenosis/occlusion; (4) arteriovenous shunt; (5) iodized oil deposition; and (6) number of TACE procedure. In addition, having diffuse-type HCC and Child-Pugh grade B disease were each independent factors associated with decreased survival time in the multivariate analysis. PTPVS-TACE is feasible and may be useful to control HCC invading the MPV.

  11. Probing the fermionic Higgs portal at lepton colliders

    E-Print Network [OSTI]

    Fedderke, Michael A; Wang, Lian-Tao

    2015-01-01

    We study the sensitivity of future electron-positron colliders to UV completions of the fermionic Higgs portal operator $H^\\dagger H \\bar \\chi \\chi$. Measurements of precision electroweak $S$ and $T$ parameters and the $e^+e^- \\to Zh$ cross section at the CEPC, FCC-ee, and ILC are considered. The scalar completion of the fermionic Higgs portal is closely related to the scalar Higgs portal, and we summarize existing results. We devote the bulk of our analysis to a singlet-doublet fermion completion. Assuming the doublet is sufficiently heavy, we construct the effective field theory (EFT) at dimension-6 in order to compute contributions to the observables. We also provide full one-loop results for $S$ and $T$ in the general mass parameter space. In both completions, future precision measurements can probe the new states at the (multi-)TeV scale, beyond the direct reach of the LHC.

  12. Non-linear Higgs portal to Dark Matter

    E-Print Network [OSTI]

    I. Brivio; M. B. Gavela; L. Merlo; K. Mimasu; J. M. No; R. del Rey; V. Sanz

    2015-11-03

    The Higgs portal to scalar Dark Matter is considered in the context of non-linearly realised electroweak symmetry breaking. We determine the dominant interactions of gauge bosons and the physical Higgs particle $h$ to a scalar singlet dark matter candidate. Phenomenological consequences are also studied in detail, including the possibility of distinguishing this scenario from the standard Higgs portal in which the electroweak symmetry breaking is linearly realised. Two features of significant impact are: i) the connection between the electroweak scale $v$ and the Higgs particle departs from the $(v+h)$ functional dependence, as the Higgs field is not necessarily an exact electroweak doublet; ii) the presence of specific couplings that arise at different order in the non-linear and in the linear expansions. These facts deeply affect the dark matter relic abundance, as well as the expected signals in direct and indirect searches and collider phenomenology, where Dark Matter production rates are enhanced with respect to the standard portal.

  13. Probing the fermionic Higgs portal at lepton colliders

    E-Print Network [OSTI]

    Michael A. Fedderke; Tongyan Lin; Lian-Tao Wang

    2015-06-17

    We study the sensitivity of future electron-positron colliders to UV completions of the fermionic Higgs portal operator $H^\\dagger H \\bar \\chi \\chi$. Measurements of precision electroweak $S$ and $T$ parameters and the $e^+e^- \\to Zh$ cross section at the CEPC, FCC-ee, and ILC are considered. The scalar completion of the fermionic Higgs portal is closely related to the scalar Higgs portal, and we summarize existing results. We devote the bulk of our analysis to a singlet-doublet fermion completion. Assuming the doublet is sufficiently heavy, we construct the effective field theory (EFT) at dimension-6 in order to compute contributions to the observables. We also provide full one-loop results for $S$ and $T$ in the general mass parameter space. In both completions, future precision measurements can probe the new states at the (multi-)TeV scale, beyond the direct reach of the LHC.

  14. CPTAC Assay Portal: a repository of targeted proteomic assays

    SciTech Connect (OSTI)

    Whiteaker, Jeffrey R.; Halusa, Goran; Hoofnagle, Andrew N.; Sharma, Vagisha; MacLean, Brendan; Yan, Ping; Wrobel, John; Kennedy, Jacob; Mani, DR; Zimmerman, Lisa J.; Meyer, Matthew R.; Mesri, Mehdi; Rodriguez, Henry; Abbateillo, Susan E.; Boja, Emily; Carr, Steven A.; Chan, Daniel W.; Chen, Xian; Chen, Jing; Davies, Sherri; Ellis, Matthew; Fenyo, David; Hiltket, Tara; Ketchum, Karen; Kinsinger, Christopher; Kuhn, Eric; Liebler, Daniel; Lin, De; Liu, Tao; Loss, Michael; MacCoss, Michael; Qian, Weijun; Rivers, Robert; Rodland, Karin D.; Ruggles, Kelly; Scott, Mitchell; Smith, Richard D.; Thomas, Stefani N.; Townsend, Reid; Whiteley, Gordon; Wu, Chaochao; Zhang, Hui; Zhang, Zhen; Paulovich, Amanda G.

    2014-06-27

    To address these issues, the Clinical Proteomic Tumor Analysis Consortium (CPTAC) of the National Cancer Institute (NCI) has launched an Assay Portal (http://assays.cancer.gov) to serve as a public repository of well-characterized quantitative, MS-based, targeted proteomic assays. The purpose of the CPTAC Assay Portal is to facilitate widespread adoption of targeted MS assays by disseminating SOPs, reagents, and assay characterization data for highly characterized assays. A primary aim of the NCI-supported portal is to bring together clinicians or biologists and analytical chemists to answer hypothesis-driven questions using targeted, MS-based assays. Assay content is easily accessed through queries and filters, enabling investigators to find assays to proteins relevant to their areas of interest. Detailed characterization data are available for each assay, enabling researchers to evaluate assay performance prior to launching the assay in their own laboratory.

  15. Portals 4 network API definition and performance measurement

    SciTech Connect (OSTI)

    Brightwell, R. B.

    2012-03-01

    Portals is a low-level network programming interface for distributed memory massively parallel computing systems designed by Sandia, UNM, and Intel. Portals has been designed to provide high message rates and to provide the flexibility to support a variety of higher-level communication paradigms. This project developed and analyzed an implementation of Portals using shared memory in order to measure and understand the impact of using general-purpose compute cores to handle network protocol processing functions. The goal of this study was to evaluate an approach to high-performance networking software design and hardware support that would enable important DOE modeling and simulation applications to perform well and to provide valuable input to Intel so they can make informed decisions about future network software and hardware products that impact DOE applications.

  16. EERE Technology Commercialization Portal: Connecting Energy Industry and Market Leaders with Laboratory Technologies

    SciTech Connect (OSTI)

    2010-06-01

    A flyer briefly describing the EERE Technology Commercialization Portal along with an example of one of its marketing summaries.

  17. EERE Technology Commercialization Portal: Connecting Energy Industry and Market Leaders with Laboratory Technologies (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-06-01

    A flyer briefly describing the EERE Technology Commercialization Portal along with an example of one of its marketing summaries.

  18. NaturallyProduced CarbonSources

    E-Print Network [OSTI]

    (e.g., methane) to generate electricity, drive a petroleum-powered car, or cut down a forest, CO2 element in our universe. Carbon dioxide, or CO2, is the most abundant car- bon bearing gas, and plays a special role in Earth's carbon cycle. From an atmospheric perspective, sources emit or release carbon

  19. THE COMPARATIVE VALUE OF BIOLOGICAL CARBON SEQUESTRATION

    E-Print Network [OSTI]

    McCarl, Bruce A.

    THE COMPARATIVE VALUE OF BIOLOGICAL CARBON SEQUESTRATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 sequestration and between 1 and 49 percent for forest based carbon sequestration. Value adjustments 18 19 20 21 22 BRUCE A. MCCARL, BRIAN C. MURRAY, AND UWE A. SCHNEIDER Abstract Carbon sequestered via

  20. THE COMPARATIVE VALUE OF BIOLOGICAL CARBON SEQUESTRATION

    E-Print Network [OSTI]

    McCarl, Bruce A.

    THE COMPARATIVE VALUE OF BIOLOGICAL CARBON SEQUESTRATION BRUCE A. MCCARL, BRIAN C. MURRAY, AND UWE A. SCHNEIDER A. Abstract Carbon sequestration via forests and agricultural soils saturates over time to sequestration because of (1) an ecosystems limited ability to take up carbon which we will call saturation

  1. Report on PhysNet (www.physnet.net) The Physics Portal of the EPS

    E-Print Network [OSTI]

    Adler, Joan

    Report on PhysNet (www.physnet.net) The Physics Portal of the EPS Prof. Dr. Dr. Eberhard R. Hilf with professional physics information. It is a fully distributed and open information portal for professional as well as links to other professional portal services for physics and other fields. Upload is the service

  2. Das Potsdamer Universittsmagazin Januar Mrz 2008 ISSN 1618-6893 www.uni-potsdam.de/portal

    E-Print Network [OSTI]

    Potsdam, Universität

    Das Potsdamer Universitätsmagazin Januar­ März 2008 ISSN 1618-6893 www.uni-potsdam.de/portal 1 ToleranzediktS 5 Paare zwischen Nähe und DistanzS 39 #12;Portal 1­3/08 Uni A ktuell Neujahrsempfang 2008 Musikstudierende im Nikolaisaal ....51 Inhalt 1-3/2008 Impressum Portal ­ Das Potsdamer Universitätsmagazin ISSN

  3. A PORTAL FRAMEWORK ARCHITECTURE FOR BUILDING HEALTHCARE WEB-BASED APPLICATIONS

    E-Print Network [OSTI]

    Andry, François

    A PORTAL FRAMEWORK ARCHITECTURE FOR BUILDING HEALTHCARE WEB-BASED APPLICATIONS Francois Andry, Erik., Industriestraße 41, 69190 Walldorf, Germany karsten.klein@icw-global.com Keywords: Portal, Portlets, SOA, Security, Context Management, PHR, EHR, Care Disease Management, Personalization. Abstract: Portals are Web

  4. P22 Bacteriophage Portal: The Conduit for DNA Packaging and Release Jinghua Tang1

    E-Print Network [OSTI]

    Baker, Timothy S.

    P22 Bacteriophage Portal: The Conduit for DNA Packaging and Release Jinghua Tang1 , Gabriel C into a nearly icosahedral, T=7 laevo, quasi-symmetric head. A 12-fold symmetric dodecamer of gp1 ("portal enters and exits the head. The portal also serves as the attachment site for the tail machine, formed

  5. How do I enroll? 1. Log into WSU's online portal (Academica).

    E-Print Network [OSTI]

    Finley Jr., Russell L.

    How do I enroll? 1. Log into WSU's online portal (Academica). 2 by noon the following business day. 8. Check your account in the online portal in WSU's online portal (Academica). The first payment may include non-deferred fees. What if I add

  6. Creating and Using Geospatial Ontology Time Series in a Semantic Cultural Heritage Portal

    E-Print Network [OSTI]

    Hyvönen, Eero

    Creating and Using Geospatial Ontology Time Series in a Semantic Cultural Heritage Portal Tomi annotations in semantic cultural heritage portals commonly make spatiotemporal references to historical heritage portal CULTURESAMPO to sup- port faceted semantic search of contents and to visualize historical

  7. Advanced Millimeter-Wave Security Portal Imaging Techniques

    SciTech Connect (OSTI)

    Sheen, David M.; Bernacki, Bruce E.; McMakin, Douglas L.

    2012-04-01

    Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave security portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave portal imaging systems.

  8. Comprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems

    E-Print Network [OSTI]

    Han, Richard Y.

    , carbon sequestration, ecosystem, multi-tier, multi-modal, multi-scale, self organized, sensor array to comprehensively monitor ecosystem carbon sequestration. The network consists of CO2, Weather (pressureComprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems and Its Relation

  9. Final report on the project entitled "The Effects of Disturbance & Climate on Carbon Storage & the Exchanges of CO2 Water Vapor & Energy Exchange of Evergreen Coniferous Forests in the Pacific Northwest: Integration of Eddy Flux, Plant and Soil Measurements at a Cluster of Supersites"

    SciTech Connect (OSTI)

    Beverly E. Law , Christoph K. Thomas

    2011-09-20

    This is the final technical report containing a summary of all findings with regard to the following objectives of the project: (1) To quantify and understand the effects of wildfire on carbon storage and the exchanges of energy, CO2, and water vapor in a chronosequence of ponderosa pine (disturbance gradient); (2) To investigate the effects of seasonal and interannual variation in climate on carbon storage and the exchanges of energy, CO2, and water vapor in mature conifer forests in two climate zones: mesic 40-yr old Douglas-fir and semi-arid 60-yr old ponderosa pine (climate gradient); (3) To reduce uncertainty in estimates of CO2 feedbacks to the atmosphere by providing an improved model formulation for existing biosphere-atmosphere models; and (4) To provide high quality data for AmeriFlux and the NACP on micrometeorology, meteorology, and biology of these systems. Objective (1): A study integrating satellite remote sensing, AmeriFlux data, and field surveys in a simulation modeling framework estimated that the pyrogenic carbon emissions, tree mortality, and net carbon exchange associated with four large wildfires that burned ~50,000 hectares in 2002-2003 were equivalent to 2.4% of Oregon statewide anthropogenic carbon emissions over the same two-year period. Most emissions were from the combustion of the forest floor and understory vegetation, and only about 1% of live tree mass was combusted on average. Objective (2): A study of multi-year flux records across a chronosequence of ponderosa pine forests yielded that the net carbon uptake is over three times greater at a mature pine forest compared with young pine. The larger leaf area and wetter and cooler soils of the mature forest mainly caused this effect. A study analyzing seven years of carbon and water dynamics showed that interannual and seasonal variability of net carbon exchange was primarily related to variability in growing season length, which was a linear function of plant-available soil moisture in spring and early summer. A multi-year drought (2001-2003) led to a significant reduction of net ecosystem exchange due to carry-over effects in soil moisture and carbohydrate reserves in plant-tissue. In the same forest, the interannual variability in the rate carbon is lost from the soil and forest floor is considerable and related to the variability in tree growth as much as it is to variability in soil climatic conditions. Objective (3): Flux data from the mature ponderosa pine site support a physical basis for filtering nighttime data with friction velocity above the canopy. An analysis of wind fields and heat transport in the subcanopy at the mesic 40-year old Douglas site yielded that the non-linear structure and behavior of spatial temperature gradients and the flow field require enhanced sensor networks to estimate advective fluxes in the subcanopy of forest to close the surface energy balance in forests. Reliable estimates for flux uncertainties are needed to improve model validation and data assimilation in process-based carbon models, inverse modeling studies and model-data synthesis, where the uncertainties may be as important as the fluxes themselves. An analysis of the time scale dependence of the random and flux sampling error yielded that the additional flux obtained by increasing the perturbation timescale beyond about 10 minutes is dominated by random sampling error, and therefore little confidence can be placed in its value. Artificial correlation between gross ecosystem productivity (GEP) and ecosystem respiration (Re) is a consequence of flux partitioning of eddy covariance flux data when GEP is computed as the difference between NEE and computed daytime Re (e.g. using nighttime Re extrapolated into daytime using soil or air temperatures). Tower-data must be adequately spatially averaged before comparison to gridded model output as the time variability of both is inherently different. The eddy-covariance data collected at the mature ponderosa pine site and the mesic Douglas fir site were used to develop and evaluate a new method to extra

  10. UW TravelWIse: New travel portal launched on Aug. 1 Effective Aug. 1, 2013 all UW employees have access to a new portal for all their UW business

    E-Print Network [OSTI]

    Evans, Paul G.

    UW TravelWIse: New travel portal launched on Aug. 1 Effective Aug. 1, 2013 all UW employees have access to a new portal for all their UW business travel needs. The portal, called UW TravelWIse, provides both convenience and consistency for all involved in business travel. Using the travel portal, UW

  11. Influence of Extraterrestrial Radiation on Radiation Portal Monitors

    SciTech Connect (OSTI)

    Keller, Paul E.; Kouzes, Richard T.

    2009-06-01

    Cosmic radiation and solar flares can be a major source of background radiation at the Earth’s surface. This paper examines the relationship between extraterrestrial radiation and the detectable background in radiation portal monitors used for homeland security applications. Background radiation data from 13 radiation portal monitor facilities are examined and compared against external sources of data related to extraterrestrial radiation, including measurements at neutron monitors located at 53 cosmic-ray observatories around the Earth, four polar orbiting satellites, three geostationary satellites, ground-based geomagnetic field data from observatories around the Earth, a solar magnetic index, solar radio flux data, and sunspot activity data. Four-years (January 2003 through December 2006) of data are used in this study, which include the latter part of Solar Cycle 23 as solar activity was on the decline. The analysis shows a significant relationship between some extraterrestrial radiation and the background detected in the radiation portal monitors. A demonstrable decline is shown in the average gamma ray and neutron background at the radiation portal monitors as solar activity declined over the period of the study.

  12. the Web Ontologybased Community Web Portals Steffen Staab

    E-Print Network [OSTI]

    Staab, Steffen

    the Web Ontology­based Community Web Portals Steffen Staab J urgen Angele b , Stefan Decker of World Wide Web virtually everyone a computer contribute high­value information challenge to able information found. Search machines with task, ultimately provide appropriatly struc­ tured views onto web

  13. Invited Viewer Invited Viewer iSIS Portal Access

    E-Print Network [OSTI]

    Dennett, Daniel

    1 Invited Viewer Invited Viewer iSIS Portal Access Tufts "Invited Viewers" such as parents and spouses can be granted view-only access to a student's iSIS secure personal information. Students previously registered by another student or you do not have a Tufts Username and active iSIS access (most

  14. A Java-based Science Portal for Neutron Scattering Experiments

    E-Print Network [OSTI]

    Vazhkudai, Sudharshan

    A Java-based Science Portal for Neutron Scattering Experiments Sudharshan S. Vazhkudai James A scattering facility recently commissioned by the US Department of Energy (DOE). The neutron beam produced (SNS) [14] is a large-scale leading- edge neutron scattering facility that hopes to fundamen- tally

  15. Novel Percutaneous Radiofrequency Ablation of Portal Vein Tumor Thrombus: Safety and Feasibility

    SciTech Connect (OSTI)

    Mizandari, Malkhaz; Ao, Guokun; Zhang Yaojun; Feng Xi; Shen Qiang; Chen Minshan; Lau, Wan Yee; Nicholls, Joanna; Jiao Long; Habib, Nagy

    2013-02-15

    We report our experience of the safety of partial recanalization of the portal vein using a novel endovascular radiofrequency (RF) catheter for portal vein tumor thrombosis. Six patients with liver cancer and tumor thrombus in the portal vein underwent percutaneous intravascular radiofrequency ablation (RFA) using an endovascular bipolar RF device. A 0.035-inch guidewire was introduced into a tributary of the portal vein and through which a 5G guide catheter was introduced into the main portal vein. After manipulation of the guide catheter over the thrombus under digital subtraction angiography, the endovascular RF device was inserted and activated around the thrombus. There were no observed technique specific complications, such as hemorrhage, vessel perforation, or infection. Post-RFA portography showed partial recanalization of portal vein. RFA of portal vein tumor thrombus in patients with hepatocellular carcinoma is technically feasible and warrants further investigation to assess efficacy compared with current recanalization techniques.

  16. Protecting climate with forests.

    E-Print Network [OSTI]

    2008-01-01

    Changing feedbacks in the climate–biosphere system Front.313–32 Bonan G B 2008 Forests and climate change: forcings,feedbacks, and the climate benefits of forests Science

  17. Carbon Storage in Young Growth Coast Redwood Stands

    E-Print Network [OSTI]

    Abstract Carbon sequestration is an emerging forest management objective within California and around the dynamics of carbon sequestration and to accurately measure carbon storage is essential to insure successful per acre making the argument for use of the species in long-term carbon sequestration projects self

  18. Advertising rates for 4NI, the Directory Portal for Northern IrelandAdd to the Guestbook of 4NI, the Directory Portal for Northern IreBack to 4NI, the Directory Portal for No 24 February 2004 @ 10:33:27 AM

    E-Print Network [OSTI]

    West, Stuart

    Advertising rates for 4NI, the Directory Portal for Northern IrelandAdd to the Guestbook of 4NI, the Directory Portal for Northern IreBack to 4NI, the Directory Portal for No 24 February 2004 @ 10:33:27 AM Directory Portal For Northern Ireland Industry News 20 February 2004 Some mammals can adjust sex

  19. to the PORTAL servers, including count, occupancy, and time mean speeds in each lane. PORTAL also includes incident and variable

    E-Print Network [OSTI]

    Bertini, Robert L.

    measures are temperature, visibility, wind speed, and rainfall. From the basic sensor data PORTAL computes and is often broken into three component areas: environmental, economic, and social (3). Environmental consumption of nonrenewable fossil fuels. Economic Sustainability The cost of fuel consumed for transportation

  20. Linkage of MIKE SHE to Wetland-DNDC for carbon budgeting and anaerobic biogeochemistry

    E-Print Network [OSTI]

    . Introduction Increasing emissions of carbon dioxide, methane, and other greenhouse gases (GHGs) are believed 2004 Key words: Biogeochemical modeling, Carbon dynamics, Forest wetland, Greenhouse gases emission and forest management practices on GHGs emissions and carbon dynamics to test the capabilities of the models

  1. Carbon storage and sequestration by trees in urban and community areas of the United States

    E-Print Network [OSTI]

    Carbon storage and sequestration by trees in urban and community areas of the United States David J forestry Tree cover Forest inventory a b s t r a c t Carbon storage and sequestration by urban trees to determine total urban forest carbon storage and annual sequestration by state and nationally. Urban whole

  2. Global Forests Syllabus -1 GLOBAL FORESTS

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    , and conservation. Another explores ongoing strategies that seek to sustain forests through markets and other (environmental, socioeconomic and political) under which forest products are harvested and transformed. A variety stakeholders & power Reading comments 18 Changing scenarios Reading comments 20 Costs, benefits

  3. High surface area diamond-like carbon electrodes grown on vertically aligned carbon nanotubes

    E-Print Network [OSTI]

    Bristol, University of

    High surface area diamond-like carbon electrodes grown on vertically aligned carbon nanotubes H packed forests of vertically aligned multiwall carbon nanotubes (VACNTs). The DLC:VACNT composite film and high corrosion resistance [13,14]. Other type of dopants, including nickel and boron, also result

  4. Forest Research Coporate Plan

    E-Print Network [OSTI]

    Forest Research Coporate Plan 2006­2009 The research agency of the Forestry Commission #12;Forest Research Corporate Plan 2006­2009 1Corporate Plan 2006­2009 #12;Chief Executive Professor Jim Lynch Forest Research Alice Holt Lodge Farnham Surrey GU10 4LH Tel: 01420 22255 E-mail: research

  5. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2000-2001 An agency of the Forestry Commission #12-SMITH Chief Research Officer Forest Research Members DR A.R. GRIFFIN Renewable Resources Division Shell Research Organisation Spring 2001 Advisory Committee on Forest Research Chief Executive Chief Research

  6. Forest Research: Climate Change

    E-Print Network [OSTI]

    Forest Research: Climate Change projects Forest Research is part of the Forestry Commission of climate change-related research is wide-ranging, covering impact assessment and monitoring, adaptation around a quarter of its research budget with Forest Research on climate change and related programmes

  7. Prince George Forest Region

    E-Print Network [OSTI]

    Coxson, Darwyn

    Prince George Forest Region Forest Resources & Practices Team May 1999 Note #PG-20 · ExtensionAssociate,UniversityofNorthern BritishColumbia 2 MSc, RPBio, Silvifauna Research, Prince George, BC 3 PhD, R.M. Sagar and Associates, Prince George, BC #12;Ministry of Forests, 5th Floor, 1011 - 4th Avenue, Prince George, BC V2L 3H9

  8. Protecting climate with forests.

    E-Print Network [OSTI]

    2008-01-01

    much more than carbon sequestration does, and often in abiophysics, carbon sequestration, climate change, climatethe accompanying carbon sequestration does—and sometimes in

  9. Lacunarity as a texture measure for a tropical forest landscape

    SciTech Connect (OSTI)

    Su, Haiping; Krummel, J.

    1996-01-01

    Fragmentation and loss of tropical forest cover alters terrestrial plant and animal population dynamics, reduces biodiversity and carbon storage capacity, and, as a global phenomenon could affect regional and global climate patterns. Lacunarity as a texture measure can offer a simple solution to characterize the texture of tropical forest landscape and determine spatial patterns associated with ecological processes. Lacunarity quantifies the deviation from translational invariance by describing the distribution of gaps within a binary image at multiple scales. As lacunarity increases, the spatial arrangement of tropical forest gaps will also increase. In this study, we used the Spatial Modeler in Imagine as a graphic programming tool to calculate lacunarity indices for a tropical forest landscape in Southern Mexico and Northern Guatemala. Lacunarity indices were derived from classified Landsat MSS images acquired in 1974 and 1984. Random-generated binary images were also used to derive lacunarity indices and compared with the lacunarity of forest patterns derived from the classified MSS images. Tropical forest area declined about 17%, with most of the forest areas converted into pasture/grassland for grazing. During this period, lacunarity increased about 25%. Results of this study suggest that tropical forest fragmentation could be quantified with lacunarity measures. The study also demonstrated that the Spatial Modeler can be useful as a programming tool to quantify spatial patterns of tropical forest landscape by using remotely sensed data.

  10. PLANAR MEMS SUPERCAPACITOR USING CARBON NANOTUBE FORESTS

    E-Print Network [OSTI]

    Lin, Liwei

    for the energy suppliers in pulse-power applications such as solid-state sensors. Supercapacitors have simple

  11. Forest Carbon Partnership Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable Urban Transport JumpFlowood,Pevafersa JV Jump to:BioFordFords,

  12. Forest Carbon Index | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEnia SpAFlex Fuels Energy JumpVyncke Jump

  13. Quasi-magnetism of sterile dark matter with photonic portal

    E-Print Network [OSTI]

    Wojciech Krolikowski

    2008-05-06

    We develop farther a simple model of cold dark matter consisting of sterile spin-1/2 fermions (sterinos), whose mass is generated by a nonzero vacuum expectation value of a field of sterile scalars (sterons). In this model, the sterile world of sterinos and sterons is conjectured to communicate with the familiar Standard Model world not only through gravity, but also through a photonic portal provided by a very weak effective interaction of the electromagnetic field with sterino and steron fields. Then, an extra, finite renormalization leading from the primary bare electric charge to a new bare electric charge appears spontaneously. Due to the photonic portal, the cold dark matter consisting of sterinos displays a phenomenon of quasi-magnetism, what means that it can interact effectively with cosmic (and laboratory) magnetic fields.

  14. Integrating in the Higgs Portal to Fermion Dark Matter

    E-Print Network [OSTI]

    Ayres Freitas; Susanne Westhoff; Jure Zupan

    2015-06-23

    Fermion dark matter (DM) interacting with the standard model through a Higgs portal requires non-renormalizable operators, signaling the presence of new mediator states at the electroweak scale. Collider signatures that involve the mediators are a powerful tool to experimentally probe the Higgs portal interactions, providing complementary information to strong constraints set by direct DM detection searches. Indirect detection experiments are less sensitive to this scenario. We investigate the collider reach for the mediators using three minimal renormalizable models as examples, and requiring the fermion DM to be a thermal relic. The Large Hadron Collider in its high-energy, high-luminosity phase can probe most scenarios if DM is lighter than about 200 GeV. Beyond this scale, future high-energy experiments such as an electron-positron collider or a 100-TeV proton-proton collider, combined with future direct detection experiments, are indispensable to conclusively test these models.

  15. Screening portal, system and method of using same

    SciTech Connect (OSTI)

    Linker, Kevin L.; Hunter, John A.; Brusseau, Charles A.

    2013-04-30

    A portal, system and method for screening an object for a target substance is provided. The portal includes an inflatable bladder expandable to form a test space for receiving the object and a plurality of nozzles positioned about the inflatable bladder. The nozzles are in fluid communication with a fluid source for directing air over the object whereby samples are removed from the object for examination. A collector is operatively connected to the inflatable bladder for collecting the samples removed from the object. A detector is operatively connected to the collector for examining the removed samples for the presence of the target substance. At least one preconcentrator may be operatively connected to the collector for concentrating the samples collected thereby.

  16. Catalysis of Electroweak Baryogenesis via Fermionic Higgs Portal Dark Matter

    E-Print Network [OSTI]

    Wei Chao; Michael J. Ramsey-Musolf

    2015-02-27

    We investigate catalysis of electroweak baryogenesis by fermionic Higgs portal dark matter using a two Higgs doublet model augmented by vector-like fermions. The lightest neutral fermion mass eigenstate provides a viable dark matter candidate in the presence of a stabilizing symmetry Z_2 or gauged U(1)_D symmetry. Allowing for a non-vanishing CP-violating phase in the lowest-dimension Higgs portal dark matter interactions allows generation of the observed dark matter relic density while evading direct detection bounds. The same phase provides a source for electroweak baryogenesis. We show that it is possible to obtain the observed abundances of visible and dark matter while satisfying present bounds from electric dipole moment (EDM) searches and direct detection experiments. Improving the present electron (neutron) EDM sensitivity by one (two) orders of magnitude would provide a conclusive test of this scenario.

  17. Age of riverine carbon suggests rapid export of terrestrial primary production in tropics

    E-Print Network [OSTI]

    2013-01-01

    exchange of carbon and water in an Amazonian rain forest, J.rains. The lack of variability in ? 14 C VP values between the rising water

  18. Wind for Schools Portal | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois: Energy ResourcesTurboPowerPortal Home > Wind for

  19. forestry.gov.uk/carboncode The Woodland Carbon Code is an initiative led by the

    E-Print Network [OSTI]

    carbon from these projects brings many benefits in addition to carbon sequestration. is effectivelyforestry.gov.uk/carboncode ® The Woodland Carbon Code is an initiative led by the Forestry Commission and supported by a Carbon Advisory Group of UK forest industry and carbon market experts. A buyers

  20. Web Portal for Photonic Technologies Using Grid Infrastructures

    E-Print Network [OSTI]

    H. V. Astsatryan; T. V. Gevorgyan; A. R. Shahinyan

    2013-01-09

    The modeling of physical processes is an integral part of scientific and technical research. In this area, the Extendible C++ Application in Quantum Technologies (ECAQT) package provides the numerical simulations and modeling of complex quantum systems in the presence of decoherence with wide applications in photonics. It allows creating models of interacting complex systems and simulates their time evolution with a number of available time-evolution drivers. Physical simulations involving massive amounts of calculations are often executed on distributed computing infrastructures. It is often difficult for non expert users to use such computational infrastructures or even to use advanced libraries over the infrastructures, because they often require being familiar with middleware and tools, parallel programming techniques and packages. The P-RADE Grid Portal is a Grid portal solution that allows users to manage the whole life-cycle for executing a parallel application on the computing Grid infrastructures. The article describes the functionality and the structure of the web portal based on ECAQT package.

  1. Electroweak interacting dark matter with a singlet scalar portal

    E-Print Network [OSTI]

    Cheng-Wei Chiang; Eibun Senaha

    2015-09-04

    We investigate an electroweak interacting dark matter (DM) model in which the DM is the neutral component of the SU$(2)_L$ triplet fermion that couples to the standard model (SM) Higgs sector via an SM singlet Higgs boson. In this setup, the DM can have a CP-violating coupling to the singlet Higgs boson at the renormalizable level. As long as the nonzero Higgs portal coupling (singlet-doublet Higgs boson mixing) exists, we can probe CP violation of the DM via the electric dipole moment of the electron. Assuming the $\\mathcal{O}(1)$ CP-violating phase in magnitude, we investigate the relationship between the electron EDM and the singlet-like Higgs boson mass and coupling. It is found that for moderate values of the Higgs portal couplings, current experimental EDM bound is not able to exclude the wide parameter space due to a cancellation mechanism at work. We also study the spin-independent cross section of the DM in this model. It is found that although a similar cancellation mechanism may diminish the leading-order correction, as often occurs in the ordinary Higgs portal DM scenarios, the residual higher-order effects leave an $\\mathcal{O}(10^{-47})~{\\rm cm}^2$ correction in the cancellation region. It is shown that our benchmark scenarios would be fully tested by combining all future experiments of the electron EDM, DM direct detection and Higgs physics.

  2. TOXNET and Beyond: Using the National Library of Medicine's Environmental Health and Toxicology Portal

    SciTech Connect (OSTI)

    Templin-Branner, W.

    2010-10-20

    The National Library of Medicine's Environmental Health and Toxicology Portal provides access to numerous databases that can help you explore environmental chemicals and risks. TOXNET and Beyond: Using NLM's Environmental Health and Toxicology Portal conveys the fundamentals of searching the NLM's TOXNET system of databases in chemistry, toxicology, environmental health, and related fields. In addition to TOXNET, the course will highlight various resources available through the Environmental Health and Toxicology Portal.

  3. Forest Trends Report Series Forest Trade and Finance April 2014

    E-Print Network [OSTI]

    Forest Trends Report Series Forest Trade and Finance April 2014 Forest Products Trade between China. Whiletheglobaleconomicdownturnaffectedconsumptioninmanycountries,China'stradewithAfricaremained mostly unaffected. In particular, commodities, such as oil and gas

  4. Final Report for DOE Project: Portal Web Services: Support of DOE SciDAC Collaboratories

    SciTech Connect (OSTI)

    Mary Thomas, PI; Geoffrey Fox, Co-PI; D. Gannon; M. Pierce; R. Moore; D Schissel; J. Boisseau

    2007-10-01

    Grid portals provide the scientific community with familiar and simplified interfaces to the Grid and Grid services, and it is important to deploy grid portals onto the SciDAC grids and collaboratories. The goal of this project is the research, development and deployment of interoperable portal and web services that can be used on SciDAC National Collaboratory grids. This project has four primary task areas: development of portal systems; management of data collections; DOE science application integration; and development of web and grid services in support of the above activities.

  5. Multiple Whole Genome Alignments and Novel Biomedical Applicationsat the VISTA Portal

    SciTech Connect (OSTI)

    Brudno, Michael; Poliakov, Alexander; Minovitsky, Simon; Ratnere,Igor; Dubchak, Inna

    2007-02-01

    The VISTA portal for comparative genomics is designed togive biomedical scientists a unified set of tools to lead them from theraw DNA sequences through the alignment and annotation to thevisualization of the results. The VISTA portal also hosts alignments of anumber of genomes computed by our group, allowing users to study regionsof their interest without having to manually download the individualsequences. Here we describe various algorithmic and functionalimprovements implemented in the VISTA portal over the last two years. TheVISTA Portal is accessible at http://genome.lbl.gov/vista.

  6. Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV

    E-Print Network [OSTI]

    Laura Lopez-Honorez; Thomas Schwetz; Jure Zupan

    2012-07-09

    We show that fermionic dark matter (DM) which communicates with the Standard Model (SM) via the Higgs portal is a viable scenario, even if a SM-like Higgs is found at around 125 GeV. Using effective field theory we show that for DM with a mass in the range from about 60 GeV to 2 TeV the Higgs portal needs to be parity violating in order to be in agreement with direct detection searches. For parity conserving interactions we identify two distinct options that remain viable: a resonant Higgs portal, and an indirect Higgs portal. We illustrate both possibilities using a simple renormalizable toy model.

  7. Testing and Evaluation Protocol for Spectroscopy-Based Portal Monitors Used for Homeland Security

    E-Print Network [OSTI]

    Testing and Evaluation Protocol for Spectroscopy- Based Portal Monitors Used for Homeland Security................................................................................1 4. Test and evaluation steps .........................................................................................1 5. Recording test results

  8. United States Forest Service - Forest Service Environmental Appeals...

    Open Energy Info (EERE)

    Appeals Responses Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: United States Forest Service - Forest Service Environmental Appeals Responses...

  9. Estimating the above-ground biomass of mangrove forests in Kenya 

    E-Print Network [OSTI]

    Cohen, Rachel

    2014-11-27

    Robust estimates of forest above-ground biomass (AGB) are needed in order to constrain the uncertainty in regional and global carbon budgets, predictions of global climate change and remote sensing efforts to monitor ...

  10. Department of Forest Resource Management Annual Report 2009

    E-Print Network [OSTI]

    Ecosystem Modeling 14 Forest Planning 15 Forest Techology 16 Forest in Rural Studies 17 International

  11. Department of Forest Resource Management Annual Report 2010

    E-Print Network [OSTI]

    Sensing 13 Forest Inventory and Empirical Ecosystem Modeling 14 Forest Planning 15 Forest Techology 16

  12. Airborne LiDAR Detects Selectively Logged Tropical Forest Even in an Advanced Stage of Recovery

    E-Print Network [OSTI]

    Kent, Rafi; Lindsell, Jeremy A.; Laurin, Gaia Vaglio; Valentini, Riccardo; Coomes, David A.

    2015-01-01

    logged tropical forests: the attained and the attainable. Conserv. Lett. 2012, 5, 296–303. 10. Silver, W. L.; Ostertag, R.; Lugo, a. E. The Potential for Carbon Sequestration Through Reforestation of Abandoned Tropical Agricultural and Pasture Lands... be of high conservation value [2,7–9] and act as globally-important carbon sinks [9–12]. However, there is much uncertainty regarding the changing extent of regenerating forests, their rate and stage of recovery, and the influence of recovery on further...

  13. The SNS/HFIR Web Portal System for SANS

    SciTech Connect (OSTI)

    Campbell, Stuart I; Miller, Stephen D; Bilheux, Jean-Christophe; Reuter, Michael A; Peterson, Peter F; Kohl, James Arthur; Trater, James R; Vazhkudai, Sudharshan S; Lynch, Vickie E

    2010-01-01

    In a busy world, continuing with the status-quo, to do things the way we are already familiar, often seems to be the most efficient way to conduct our work. We look for the value-add to decide if investing in a new method is worth the effort. How shall we evaluate if we have reached this tipping point for change? For contemporary researchers, understanding the properties of the data is a good starting point. The new generation of neutron scattering instruments being built are higher resolution and produce one or more orders of magnitude larger data than the previous generation of instruments. For instance, we have grown out of being able to perform some important tasks with our laptops the data are too big and the computations would simply take too long. These large datasets can be problematic as facility users now begin to grapple with many of the same issues faced by more established computing communities. These issues include data access, management, and movement, data format standards, distributed computing, and collaboration among others. The Neutron Science Portal has been architected, designed, and implemented to provide users with an easy-to-use interface for managing and processing data, while also keeping an eye on meeting modern cybersecurity requirements imposed on institutions. The cost of entry for users has been lowered by utilizing a web interface providing access to backend portal resources. Users can browse or search for data which they are allowed to see, data reduction applications can be run without having to load the software, sample activation calculations can be performed for SNS and HFIR beamlines, McStas simulations can be run on TeraGrid and ORNL computers, and advanced analysis applications such as those being produced by the DANSE project can be run. Behind the scenes is a live cataloging system which automatically catalogs and archives experiment data via the data management system, and provides proposal team members access to their experiment data. The complexity of data movement and utilizing distributed computing resources has been taken care on behalf of users. Collaboration is facilitated by providing users a read/writeable common area, shared across all experiment team members. To date, these shared areas are the fastest growing data spaces. The portal currently has over 370 registered users, almost 7TB of experiment and user data, approximately 1,000,000 files cataloged, and had almost 10,000 unique visits last year. Future directions for enhancing portal robustness include examining how to mirror data and portal services, better facilitation of collaborations via virtual organizations, enhancing disconnected service via thick client applications, and better inter-facility connectivity to support cross-cutting research. The portal has established itself in the SNS/HFIR user community, and the development team strives to continue to improve the quality of features and services provided in order to better serve the community.

  14. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2005­2006 The research agency of the Forestry Commission #12;Forest Research Annual Report and Accounts I 2005­2006 Together with the Comptroller and Auditor to be printed 24 July 2006 HC 1407 The research agency of the Forestry Commission Edinburgh: The Stationery

  15. CERTIFIED FOREST PRODUCTS MARKETS

    E-Print Network [OSTI]

    industry sectors with PEFC C-o-C certification June 2003 Construction 1% Pulp & paper 4% Wood manufacturing% Sawnwood 13% Panels 9% RW & primary 5% Windows & doors 5% Pulp & paper 5% DIY products 6% Trade & retailers 5% Other primary forest industries 6% Sawmilling 39% Timber trade 43% #12;Forest industry sectors

  16. Water Resources Forests & Water

    E-Print Network [OSTI]

    Water Resources Forests & Water More than half of the nation's freshwater supply originates on forestland. Healthy and sustainable forests can help ensure a continuous supply of clean and abundant water. Not only does forestland provide the cleanest water of any land use, it also helps absorb rainfall

  17. Semantic web portals: state-of-the-art Holger Lausen, Ying Ding, Michael Stollberg, Dieter Fensel, Ruben Lara Hernandez and

    E-Print Network [OSTI]

    Menczer, Filippo

    Semantic web portals: state-of-the-art survey Holger Lausen, Ying Ding, Michael Stollberg, Dieter application of semantic web technologies in web portals and corresponding achievable improvements for identifying the potential improvement made by semantic web technology. Design

  18. Comprehensive carbon footprint analysis of the value chains

    E-Print Network [OSTI]

    greenhouse gas emissions (e.g. CO2 and CH4) · Results are reported as carbon dioxide equivalents · Can be calculated for products or companies #12;SHOK Summit 20.4.2010 Carbon footprint of wood supply 1.EmissionsComprehensive carbon footprint analysis of the value chains of forest industry SHOK Summit 20

  19. Climate change and forests in India: note from the guest editors

    SciTech Connect (OSTI)

    Ravindtranath, N.H.; Aaheim, Asbjporn

    2010-12-23

    Forestry is one of the most important sectors in the context of climate change. It lies at the center-stage of global mitigation and adaptation efforts. Yet, it is one of the least understood sectors, especially in tropical zones, which constitute a significant portion of the global forests. Recently, there has been a growing interest in forests in addressing global climate change. The IPCC Assessment Report 4 (2007) Chapters related to forests have highlighted the limited number of studies on the impact of climate change on forests at the regional, national and sub-national level, while policy makers need information at these scales. Further, implication of projected climate change on mitigation potential of forest sector is only briefly mentioned in the IPCC report, with limited literature to support the conclusions. India is one among the top ten nations in the world in terms of forest cover. It is also sixth among the tropical countries in terms of forested area. As IPCC Assessment Report 5 work is about to be initiated soon, studies on the impact of climate change on forests as well as the mitigation potential of the forest sector, particularly at regional and national level, will be of great interest to the scientific and policy community. In order to conserve the carbon stored in forests and to reduce CO2 emissions from the forest sector, the Reduced Emissions from Deforestation and Degradation (REDD) mechanism is now being finalized under the UNFCCC. In this context, climate change itself may affect the mitigation potential significantly, and it is important to understand how vulnerable the forest carbon stock (biomass and soil) in the tropics is to the projected climate change. In fact, there is a need to study the impact of climate change on forests for all the major forested countries

  20. Revised: 4.27.2012 BB9: Forgot your Blackboard (Portal ID) Username & Password p. 1 of 3 If you do not know your CUNY Portal ID or your password (or both), the following instructions

    E-Print Network [OSTI]

    Qiu, Weigang

    Revised: 4.27.2012 BB9: Forgot your Blackboard (Portal ID) Username & Password p. 1 of 3 If you do not know your CUNY Portal ID or your password (or both), the following instructions will guide you in obtaining or resetting that information. 1. Go to the CUNY Portal at http://www.cuny.edu and click

  1. ACESSO AO PORTAL DE PERIDICOS DA CAPES PELA COMUNIDADE ACADMICA FEDERADA CAFe / RNP 1 Acesse o Portal de Peridicos da CAPES www.periodicos.capes.gov.br e clique em MEU ESPAO.

    E-Print Network [OSTI]

    Paraná, Universidade Federal do

    ACESSO AO PORTAL DE PERIÓDICOS DA CAPES PELA COMUNIDADE ACADÊMICA FEDERADA ­ CAFe / RNP 1º Acesse o Portal de Periódicos da CAPES www.periodicos.capes.gov.br e clique em MEU ESPAÇO. #12;2º Selecione uma Portal de Periódicos da CAPES para poder usar a ferramenta Meu Espaço, salvar listas de materiais

  2. HotelPlanner Portal Instructions This is not intended to be all-inclusive manual for using the portal, as just a few highlights are noted here. It is

    E-Print Network [OSTI]

    HotelPlanner Portal Instructions This is not intended to be all-inclusive manual for using the portal, as just a few highlights are noted here. It is important that you read the advisements, exceptions and concessions will not be granted, for concerns that are addressed in written portal advisements

  3. Wind for Schools Portal | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois: Energy ResourcesTurboPowerPortal Home > Wind forGroups

  4. Photonic portal to the hidden sector and the electroweak symmetry

    E-Print Network [OSTI]

    Wojciech Krolikowski

    2009-05-25

    A weak photon interaction with the hidden sector of the Universe, introduced recently to realize a "photonic portal", (to such a hypothetic sector responsible for cold dark matter), is conjectured to be embedded in a more extended weak interaction displaying electroweak symmetry spontaneously broken by the Standard-Model Higgs mechanism. This is a hypothetic new weak interaction between hidden and Standard-Model sectors of the Universe, appearing in our model in addition to the conventional electroweak interaction acting in the Standard-Model sector.

  5. General Operational Procedure for Pedestrian Radiation Portal Monitors

    SciTech Connect (OSTI)

    Belooussov, Andrei V.

    2012-08-08

    This document outlines the basic conduct of operation (CONOPS) for a pedestrian radiation portal monitor (RPM), provided that the CONOPS is not facility or RPM specific and that it is based on a general understanding of a pedestrian RPM operation. The described CONOPS for a pedestrian RPM is defined by: (1) RPM design and operational characteristics, (2) type of pedestrian traffic, and (3) goal for RPM installation. Pedestrian RPMs normally are deployed for the continuous monitoring of individuals passing through point of control to detect the unauthorized traffic of radioactive/nuclear materials. RPMs generally are designed to detect gamma- and neutron-emitting materials.

  6. Supersymmetric Higgs-portal and X-ray lines

    E-Print Network [OSTI]

    Hyun Min Lee; Chan Beom Park; Myeonghun Park

    2015-01-29

    We consider a Dirac singlet fermion as thermal dark matter for explaining the X-ray line in the context of a supersymmetric Higgs-portal model or a generalized Dirac NMSSM. The Dirac singlet fermion gets a mass splitting due to their Yukawa couplings to two Higgs doublets and their superpartners, Higgsinos, after electroweak symmetry breaking. We show that a correct relic density can be obtained from thermal freeze-out, due to the co-annihilation with Higgsinos for the same Yukawa couplings. We discuss the phenomenology of the Higgsinos in this model such as displaced vertices at the LHC.

  7. Multiple Higgs-Portal and Gauge-Kinetic Mixings

    E-Print Network [OSTI]

    S. Y. Choi; C. Englert; P. M. Zerwas

    2013-10-29

    We develop a phenomenological formalism for mixing effects between the Standard Model and hidden-sector fields, motivated by dark matter in the Universe as well as string theories. The scheme includes multiple Higgs-portal interactions in the scalar sector as well as multiple gauge-kinetic mixings in the abelian gauge sector. While some of the mixing effects can be cast in closed form, other elements can be controlled analytically only by means of perturbative expansions in the ratio of standard scales over large hidden scales. Higgs and vector-boson masses and mixings are illustrated numerically for characteristic processes.

  8. Photonic portal to the sterile world of cold dark matter

    E-Print Network [OSTI]

    Wojciech Krolikowski

    2007-12-18

    We assume that the cold dark matter consists of spin-1/2 and spin-0 particles described by a bispinor field \\psi and a scalar field \\phi, sterile from all Standard Model charges (in contrast, neutralinos, supersymmetric candidates for cold dark matter, are not sterile from weak Standard Model charges). We propose, however, that such a sterile world can contact with our Standard Model world not only through gravity but also through a portal provided by photons coupled to sterile particles by means of two very weak effective interactions -(f/M^2)\\phi F^{\\mu\

  9. Vector Dark Matter through a Radiative Higgs Portal

    E-Print Network [OSTI]

    Anthony DiFranzo; Patrick J. Fox; Tim M. P. Tait

    2015-12-21

    We study a model of spin-1 dark matter which interacts with the Standard Model predominantly via exchange of Higgs bosons. We propose an alternative UV completion to the usual Vector Dark Matter Higgs Portal, in which vector-like fermions charged under SU(2)$_W \\times$ U(1)$_Y$ and under the dark gauge group, U(1)$^\\prime$, generate an effective interaction between the Higgs and the dark matter at one loop. We explore the resulting phenomenology and show that this dark matter candidate is a viable thermal relic and satisfies Higgs invisible width constraints as well as direct detection bounds.

  10. A stable Higgs portal with vector dark matter

    E-Print Network [OSTI]

    Mateusz Duch; Bohdan Grzadkowski; Moritz McGarrie

    2015-09-23

    We explore an extension of the Standard Model by an additional U (1) gauge group and a complex scalar Higgs portal. As the scalar is charged under this gauge factor this simple model supplies a vector dark matter candidate satisfying the observed relic abundance and limits from direct dark matter searches. An additional Higgs-like state, that may be heavier or lighter than the observed Higgs, is present and satisfies LEP and LHC bounds whilst allowing for absolute stability of the electroweak vacuum in a range of parameter space.

  11. Copper Palladium Hydrogen Separation Membranes - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit the followingConcentratingPortalCool MagneticCopper Palladium Hydrogen

  12. Core-Shell Fuel Cell Electrodes - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit the followingConcentratingPortalCool MagneticCopper

  13. Corrosion Test Cell for Biopolar Plate Materials - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit the followingConcentratingPortalCoolCoronary StentsThe Ames Laboratory

  14. Novel Phase-Coherent Programmable Clock - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarshipThreeFebruaryMuseumEffect901Portal Find MoreAdvanced

  15. Novel Photoconductive Decay Measurement System - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarshipThreeFebruaryMuseumEffect901Portal Find

  16. Substrate CdTe Efficiency Improvements - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect PhotovoltaicsStructureInnovation Portal Substantially Parallel

  17. VEHICLE ACCESS PORTALS TA-48 Vicinity TA-36 Vicinity

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentric viewing system forPortal. 1.1 I3:Pajarito Corridor

  18. VZCOMML©, Version 4.0 - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentric viewing system forPortal.1 -VZCOMML©, Version 4.0

  19. High Strength Nano-Structured Steel - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptionsthroughputEnergySalaryInnovation Portal

  20. High Temperature Optical Gas Sensing - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptionsthroughputEnergySalaryInnovation PortalHigh

  1. Low Temperature Joining of Ceramic Composites - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogoFeet)Low EnergyInnovation PortalLow

  2. Higgs-Portal Dark Matter for GeV Gamma-Ray Excess

    E-Print Network [OSTI]

    P. Ko; Wan-Il Park; Yong Tang

    2015-04-27

    We present Higgs-Portal dark matter (DM) models to explain the reported Galactic Center GeV gamma-ray excess. Naive effective theories are inconsistent with direct detection constraint for the relevant parameter range. Simple extended models with dark gauge symmetries can easily accommodate the gamma-ray excess through the Higgs-Portal coupling while satisfying various constraints.

  3. Radioembolization After Portal Vein Embolization in a Patient with Multifocal Hepatocellular Carcinoma

    SciTech Connect (OSTI)

    Burgmans, Mark C. Irani, Farah G. Chan, Wan Ying Teo, Terence K.; Kao, Yung Hsiang Goh, Anthony S.W.; Chow, Pierce K.; Lo, Richard H.

    2012-12-15

    Radioembolization is an effective locoregional therapy for patients with intermediate or advanced stage hepatocellular carcinoma (HCC). It has been shown that radioembolization is safe in patients with portal vein thrombosis. This case report describes safe radioembolization after portal vein embolization in a patient with multifocal HCC.

  4. Testing and Evaluation Protocol for Radiation Detection Portal Monitors for Use in Homeland Security

    E-Print Network [OSTI]

    Testing and Evaluation Protocol for Radiation Detection Portal Monitors for Use in Homeland..........................................................................................................3 #12;TEST AND EVALUATION PROTOCOL TEP NO. N42.35 PREPARED BY: DIV682 TITLE: Radiation Detection and Evaluation Protocol for Radiation Detection Portal Monitors for Use in Homeland Security 1. Scope

  5. The Lunar L1 Gateway: Portal to the Stars and Beyond

    E-Print Network [OSTI]

    Ross, Shane

    1 The Lunar L1 Gateway: Portal to the Stars and Beyond Martin W. Lo Navigation and Mission Design-30, 2001 #12;2 The Lunar L1 Gateway: Portal to the Stars and Beyond Martin Lo1 , Shane Ross2 Abstract Our Solar System is interconnected by a vast system of tunnels winding around the Sun generated

  6. Hepatic and portal drained viscera response to intramesenteric infusion of propionate

    E-Print Network [OSTI]

    Boyer, Edmond

    Hepatic and portal drained viscera response to intramesenteric infusion of propionate in lactating physiological infusion of sodium proprionate, in the mesenteric vein, on liver and portal drained viscera (PDV yield and composition was observed during the infusion of propionate. It resulted in an increase (P

  7. National Nuclear Data Center Nuclear Data Portal www.nndc.bnl.gov

    E-Print Network [OSTI]

    Ohta, Shigemi

    National Nuclear Data Center #12;Nuclear Data Portal www.nndc.bnl.gov Nuclear Data Portal New science tools, codes, applications, and links are provided. National Nuclear Data Center The National Nuclear Data Center (NNDC) collects, eva- luates, and disseminates nuclear physics data for basic nuclear

  8. Forest Estate Modelling (Part 2) Forest Research Institute, Rotorua

    E-Print Network [OSTI]

    García, Oscar

    adequate models of growth and yield, and data on costs and prices, it is not too difficult to find "optiForest Estate Modelling (Part 2) O. Garcia Forest Research Institute, Rotorua The Problem Given after centuries of continued forest management, exist in Europe. Some countries still base their forest

  9. Lodgepole Pine Forest Ecology A foundation for future forest management

    E-Print Network [OSTI]

    is Very large patches of even-aged forests varying in composition from Fire Regimes in Lodgepole Pine Forests The historic fire regime is dominated by severe, stand-replacing fires. These fires occur at longLodgepole Pine Forest Ecology A foundation for future forest management Claudia Regan ­ Regional

  10. FOREST CERTIFICATION:FOREST CERTIFICATION: BIOLOGICAL BENEFITS ORBIOLOGICAL BENEFITS OR

    E-Print Network [OSTI]

    Gray, Matthew

    Stewardship Council (FSC) ­ 257 million acres Programme for the Endorsement of Forest Certification (PEFC

  11. AN EVALUATION OF SEMANTIC WEB PORTALS Rubn Lara, Sung-Kook Han, Holger Lausen, Michael Stollberg, Ying Ding, Dieter Fensel

    E-Print Network [OSTI]

    Menczer, Filippo

    AN EVALUATION OF SEMANTIC WEB PORTALS Rubén Lara, Sung-Kook Han, Holger Lausen, Michael Stollberg.ding, dieter.fensel}@uibk.ac.at ABSTRACT Web portals are entry points for information presentation and exchange for communication and information sharing. Current Web technologies employed to build up these portals present

  12. Towards Semantic Web Portals Michael Stollberg, Holger Lausen, Rubn Lara, Ying Ding, Sung-Kook Han, Dieter Fensel

    E-Print Network [OSTI]

    Menczer, Filippo

    Towards Semantic Web Portals Michael Stollberg, Holger Lausen, Rubén Lara, Ying Ding, Sung-Kook Han.lara, ying.ding, sung-kook.han, dieter.fensel}@uibk.ac.at ABSTRACT A web portal is a platform for information adequate facilities for communication and information sharing, web portals should utilize appropriate

  13. 2/15/2014 http://eco-portal.kz/kroshechnaya-vetryanaya-melnitsa-dlya-111210/ 1/11

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    2/15/2014 http://eco-portal.kz/kroshechnaya-vetryanaya-melnitsa-dlya-111210/ 1/11 : : 14 , , , . - , , . Navigation #12;2/15/2014 http://eco-portal.kz/kroshechnaya-vetryanaya-melnitsa-dlya-111210/ 2/11 1.88- , , , , . #12;2/15/2014 http://eco-portal.kz/kroshechnaya-vetryanaya-melnitsa-dlya-111210/ 3/11 Smitha

  14. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    of forest stands is valuable for studies of the physical environment. Energy balance research centers on howPACIFIC SOUTHWEST Forest and Range Experiment Station FOREST SERVICE U.S. DEPARTMENT in relation to climatic and stand variables USDA FOREST SERVICE RESEARCH PAPER PSW- 71 /1971 #12;CONTENTS

  15. The Health of Colorado's Forests

    E-Print Network [OSTI]

    The Health of Colorado's Forests 2009 Report Special Issue: Threats to Colorado's Current and Future Forest Resources #12;Acknowledgements William M. Ciesla, Forest Health Management International), is the primary author of the 2009 Report on the Health of Colorado's Forests. Thanks to the following Colorado

  16. Mesquite Urban Forest Ecosystem Analysis

    E-Print Network [OSTI]

    ................................................................................................................ 10 IV. Carbon Storage and Sequestration

  17. Nonstandard Yukawa Couplings and Higgs Portal Dark Matter

    E-Print Network [OSTI]

    Fady Bishara; Joachim Brod; Patipan Uttayarat; Jure Zupan

    2015-05-15

    We study the implications of non-standard Higgs Yukawa couplings to light quarks on Higgs-portal dark matter phenomenology. Saturating the present experimental bounds on up-quark, down-quark, or strange-quark Yukawa couplings, the predicted direct dark matter detection scattering rate can increase by up to four orders of magnitude. The effect on the dark matter annihilation cross section, on the other hand, is subleading unless the dark matter is very light -- a scenario that is already excluded by measurements of the Higgs invisible decay width. We investigate the expected size of corrections in multi-Higgs-doublet models with natural flavor conservation, the type-II two-Higgs-doublet model, the Giudice-Lebedev model of light quark masses, minimal flavor violation new physics models, Randall-Sundrum, and composite Higgs models. We find that an enhancement in the dark matter scattering rate of an order of magnitude is possible. Finally, we point out that a discovery of Higgs-portal dark matter could lead to interesting bounds on the light-quark Yukawa couplings.

  18. Isospin violating dark matter in Stückelberg portal scenarios

    E-Print Network [OSTI]

    Victor Martin-Lozano; Miguel Peiro; Pablo Soler

    2015-03-05

    Hidden sector scenarios in which dark matter (DM) interacts with the Standard Model matter fields through the exchange of massive Z' bosons are well motivated by certain string theory constructions. In this work, we thoroughly study the phenomenological aspects of such scenarios and find that they present a clear and testable consequence for direct DM searches. We show that such string motivated St\\"uckelberg portals naturally lead to isospin violating interactions of DM particles with nuclei. We find that the relations between the DM coupling to neutrons and protons for both, spin-independent (fn/fp) and spin-dependent (an/ap) interactions, are very flexible depending on the charges of the quarks under the extra U(1) gauge groups. We show that within this construction these ratios are generically different from plus and minus 1 (i.e. different couplings to protons and neutrons) leading to a potentially measurable distinction from other popular portals. Finally, we incorporate bounds from searches for dijet and dilepton resonances at the LHC as well as LUX bounds on the elastic scattering of DM off nucleons to determine the experimentally allowed values of fn/fp and an/ap.

  19. Challenges in elevated CO2 experiments on forests

    E-Print Network [OSTI]

    Oren, Ram

    of Illinois, Urbana-Champaign, IL, USA 4 Technical University of Denmark, Roskilde, Denmark 5 University concentrations in future experiments to better predict the effects of climate change? Plantations and natural. Forest ecosystems under climate change Carbon dioxide (CO2) is the most important greenhouse gas emitted

  20. Thinking about efficiency of resource use in forests Dan Binkleya,*

    E-Print Network [OSTI]

    Binkley, Dan

    the production of woody biomass as the same function, minus allocation to other tissues and respiration. Several of forests can be described as a function of the supply of resources, the proportion of resources captured by trees, and the efficiency with which trees use resources to fix carbon dioxide. This function can

  1. Solar energy at Forest Research Solar Power at Alice Holt

    E-Print Network [OSTI]

    - crystalline solar photovoltaic panels (175 watt panels with a total peak DC rating of 32.375 kilowatts). SolarSolar energy at Forest Research Solar Power at Alice Holt research station provides a renewable per annum. As part of a programme to improve energy efficiency and meet government targets on carbon

  2. Global climate change mitigation and sustainable forest management--The challenge of monitoring and verification

    SciTech Connect (OSTI)

    Makundi, Willy R.

    1997-12-31

    In this paper, sustainable forest management is discussed within the historical and theoretical framework of the sustainable development debate. The various criteria and indicators for sustainable forest management put forth by different institutions are critically explored. Specific types of climate change mitigation policies/projects in the forest sector are identified and examined in the light of the general criteria for sustainable forest management. Areas of compatibility and contradiction between the climate mitigation objectives and the minimum criteria for sustainable forest management are identified and discussed. Emphasis is put on the problems of monitoring and verifying carbon benefits associated with such projects given their impacts on pre-existing policy objectives on sustainable forest management. The implications of such policy interactions on assignment of carbon credits from forest projects under Joint Implementation/Activities Implemented Jointly initiatives are discussed. The paper concludes that a comprehensive monitoring and verification regime must include an impact assessment on the criteria covered under other agreements such as the Biodiversity and/or Desertification Conventions. The actual carbon credit assigned to a specific project should at least take into account the negative impacts on the criteria for sustainable forest management. The value of the impacts and/or the procedure to evaluate them need to be established by interested parties such as the Councils of the respective Conventions.

  3. 15 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    include the following: · using solid wood products avoids carbon dioxide (CO2) emissions from substitute needs to be built to reduce annual CO2 emissions by 14 to 31% and fossil fuel consumption by 12 to 19 is used to displace fossil fuels as energy source. · that young forest stands sequester energy more

  4. Managing Commercial Tree Species for Timber Production and Carbon Sequestration: Management Guidelines and Financial Returns

    SciTech Connect (OSTI)

    Gary D. Kronrad

    2006-09-19

    A carbon credit market is developing in the United States. Information is needed by buyers and sellers of carbon credits so that the market functions equitably and efficiently. Analyses have been conducted to determine the optimal forest management regime to employ for each of the major commercial tree species so that profitability of timber production only or the combination of timber production and carbon sequestration is maximized. Because the potential of a forest ecosystem to sequester carbon depends on the tree species, site quality and management regimes utilized, analyses have determined how to optimize carbon sequestration by determining how to optimally manage each species, given a range of site qualities, discount rates, prices of carbon credits and other economic variables. The effects of a carbon credit market on the method and profitability of forest management, the cost of sequestering carbon, the amount of carbon that can be sequestered, and the amount of timber products produced has been determined.

  5. A search for Higgs-portal dark matter and new phenomena with monojet signatures in collisions at ? = 8 TeV

    E-Print Network [OSTI]

    AUTHOR|(SzGeCERN)708483

    A search for new phenomena in final states with one or more energetic jets and large missing transverse momentum is presented. An integrated luminosity of 20 fb^1 is collected from ? = 8 TeV collisions at the LHC with the ATLAS detector during 2012 operations. Standard Model backgrounds and systematics uncertainties are estimated using a maximum likelihood procedure. The number of events passing this selection criteria is in good agreement with Standard Model expectations. These events are then divided up into three orthogonal signal regions based on the outputs of two Random Forest classifiers trained to classify invisible decays of the Higgs boson produced through the vector boson fusion and Higgs-strahlung production modes. These results are then interpreted in terms of three different Higgs-portal models and translated into upper limits on WIMP-nucleon cross-sections for comparison with direct detection experiments.

  6. Computational Statistics Canonical Forest

    E-Print Network [OSTI]

    Ahn, Hongshik

    : First Author: Yu-Chuan Chen First Author Secondary Information: Order of Authors: Yu-Chuan Chen Hyejung;Computational Statistics manuscript No. (will be inserted by the editor) Canonical Forest Yu-Chuan Chen

  7. Selecting a Consulting Forester 

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2005-10-19

    Landowners often need professional help after a weather-related disaster has damaged timber stands. A consulting forester can help a landowner develop management strategies that fit the landowner's objectives. This publication includes a checklist...

  8. The terrestrial carbon inventory on the Savannah River Site: Assessing the change in Carbon pools 1951-2001.

    SciTech Connect (OSTI)

    Dai, Zhaohua; Trettin, Carl, C.; Parresol, Bernard, R.

    2011-11-30

    The Savannah River Site (SRS) has changed from an agricultural-woodland landscape in 1951 to a forested landscape during that latter half of the twentieth century. The corresponding change in carbon (C) pools associated land use on the SRS was estimated using comprehensive inventories from 1951 and 2001 in conjunction with operational forest management and monitoring data from the site.

  9. Forest Fires: Answers to 12 Common Questions 1. Is wildfire bad for forests?

    E-Print Network [OSTI]

    North, Malcolm

    Forest Fires: Answers to 12 Common Questions 1. Is wildfire bad for forests? No. Some forests need burning on the forest floor 2. What are the types of forest fires? Broadly there are two types: low

  10. Scattering of nucleons on cold-dark-matter particles through photonic portal

    E-Print Network [OSTI]

    Wojciech Krolikowski

    2010-04-29

    In the model of hidden sector proposed recently, protons and neutrons scatter differently on cold-dark-matter particles. First, we summarize briefly our model based on a mechanism of "photonic portal" between hidden and Standard-Model sectors of the Universe. Then, we calculate in an elementary way the differential cross-sections for scattering of protons and neutrons on sterile Dirac fermions ("sterinos") playing the role of cold-dark-matter particles. They interact with nucleons through the photonic portal in a somewhat involved but natural manner. Due to this portal, the differential cross-section for protons displays a Coulomb-like forward singularity.

  11. New Constraints on Higgs-portal Scalar Dark Matter

    E-Print Network [OSTI]

    Huayong Han; Sibo Zheng

    2015-11-27

    The simplest Higgs-portal scalar dark matter model, in which a real scalar singlet is added to the standard model, has been revisited, by taking into account the constraints from perturbativity, electroweak vacuum stability in the early Universe, dark matter direct detection, and Higgs invisible decay at the LHC. We show that the {\\it resonant mass region} is totally excluded and the {\\it high mass region} is reduced to a narrow window $1.1$ ~TeV $\\leq m_{s} \\leq$ $ 2.55$~ TeV, which is slightly reduced to $1.1$~TeV $\\leq m_{s} \\leq$ $ 2.0$~ TeV if the perturbativity is further imposed. This {\\it high mass range} can be fully detected by the Xenon 1T experiment.

  12. Data Archive and Portal Thrust Area Strategy Report

    SciTech Connect (OSTI)

    Sivaraman, Chitra; Stephan, Eric G.; Macduff, Matt C.; Hagler, Clay D.

    2014-09-30

    This report describes the Data Archive and Portal (DAP), a key capability of the U.S. Department of Energy's Atmosphere to Electron (A2e) initiative. The DAP Thrust Area Planning Group was organized to develop a plan for deploying this capability. Primarily, the report focuses on a distributed system--a DOE Wind Cloud--that functions as a repository for all A2e data. The Wind Cloud will be accessible via an open, easy-to-navigate user interface that facilitates community data access, interaction, and collaboration. DAP management will work with the community, industry, and international standards bodies to develop standards for wind data and to capture important characteristics of all data in the Wind Cloud.

  13. Higgs portal to Inflation and fermionic dark matter

    E-Print Network [OSTI]

    Aditya Aravind; Minglei Xiao; Jiang-Hao Yu

    2015-12-30

    We investigate an inflationary model involving a gauge singlet scalar and fermionic dark matter. The mixing between the singlet scalar and the Higgs boson provides a portal to dark matter. The inflaton could either be the Higgs boson or the singlet scalar, and slow roll inflation is realized via its non-minimal coupling to gravity. In this setup, the effective scalar potential is stabilized by the mixing between two scalars and coupling with dark matter. We study constraints from collider searches, relic density and direct detection, and find that dark matter mass should be around half the mass of either the Higgs boson or singlet scalar. Using the renormalization group equation improved scalar potential and putting all the constraints together, we show that the inflationary observables $n_s-r$ are consistent with current Planck data.

  14. Standardisation of radiation portal monitor controls and readouts

    SciTech Connect (OSTI)

    Tinker, Michael R.

    2010-10-01

    There is an urgent need to standardise the numbering configuration of radiation portal monitor sensing panels. Currently, manufacturers use conflicting numbering schemes that may confuse operators of these varied systems. There is a similar problem encountered with the varied choices of colored indicator lights and colored print lines designated for gamma and neutron alarms. In addition, second-party software that changes the alarm color scheme may also have been installed. Furthermore, no provision exists for the color blind or to provide work stations with only black ink on alarm printouts. These inconsistencies and confusing setups could inadvertently cause a misinterpretation of the alarm, resulting in the potential release of a radiological hazard into a sovereign country. These issues are discussed, and a proposed solution is offered.

  15. nature geoscience | VOL 2 | NOVEMBER 2009 | www.nature.com/naturegeoscience 737 CO2 emissions from forest loss

    E-Print Network [OSTI]

    Jackson, Robert B.

    emissions from forest loss G. R. van der Werf,D. C. Morton, R. S. DeFries, J. G. J. Olivier, P. S as a notable carbon dioxide source. P rogrammes that aim to reduce the emissions from deforestation and forest degradation are being considered as a cost-effective way to mitigate anthropogenic greenhouse-gas emissions1

  16. MicrobesOnline: an integrated portal for comparative and functional genomics

    E-Print Network [OSTI]

    Dehal, Paramvir S.

    Since 2003, MicrobesOnline (http://www.microbesonline.org) has been providing a community resource for comparative and functional genome analysis. The portal includes over 1000 complete genomes of bacteria, archaea and ...

  17. Hypothesis of photonic portal in the problem of dark matter and classical nature of gravitation

    E-Print Network [OSTI]

    Wojciech Krolikowski

    2011-08-01

    Within our model of "photonic portal" to the hypothetical hidden sector of the Universe, an option is considered, where the massive sterile bosons, mediating in this sector and described by the antisymmetric-tensor field A_{\\mu\

  18. The Four Basic Ways of Creating Dark Matter Through a Portal

    E-Print Network [OSTI]

    Xiaoyong Chu; Thomas Hambye; Michel H. G. Tytgat

    2012-05-24

    We consider the possibility that along the thermal history of the Universe, dark matter (DM) would have been created from Standard Model particles, either through a kinetic mixing portal to an extra U(1) gauge field, or through the Higgs portal. Depending solely on the DM particle mass, on the portal and on the DM hidden sector interaction, we show how the observed DM relic density can be obtained. There are four possible freeze-in/reannihilation/freeze-out regimes, which together result in a simple characteristic relic density phase diagram, with the shape of a "Mesa". In the case of the kinetic mixing portal, we show that, unlike other freeze-in scenarios discussed in the literature, the freeze-in regime can be probed by forthcoming DM direct detection experiments. These results are well representative {of} any scenario where a DM hidden sector would be created out of the Standard Model {sector}.

  19. The four basic ways of creating dark matter through a portal

    SciTech Connect (OSTI)

    Chu, Xiaoyong; Hambye, Thomas; Tytgat, Michel H.G. E-mail: thambye@ulb.ac.be

    2012-05-01

    We consider the possibility that along the thermal history of the Universe, dark matter (DM) would have been created from Standard Model particles, either through a kinetic mixing portal to an extra U(1) gauge field, or through the Higgs portal. Depending solely on the DM particle mass, on the portal and on the DM hidden sector interaction, we show how the observed DM relic density can be obtained. There are four possible freeze-in/reannihilation/freeze-out regimes, which together result in a simple characteristic relic density phase diagram, with the shape of a ''Mesa''. In the case of the kinetic mixing portal, we show that, unlike other freeze-in scenarios discussed in the literature, the freeze-in regime can be probed by forthcoming DM direct detection experiments. These results are well representative of any scenario where a DM hidden sector would be created out of the Standard Model (sector)

  20. Three-dimensional Structure of a Viral Genome-delivery Portal Vertex

    SciTech Connect (OSTI)

    A Olia; P Prevelige Jr.; J Johnson; G Cingolani

    2011-12-31

    DNA viruses such as bacteriophages and herpesviruses deliver their genome into and out of the capsid through large proteinaceous assemblies, known as portal proteins. Here, we report two snapshots of the dodecameric portal protein of bacteriophage P22. The 3.25-{angstrom}-resolution structure of the portal-protein core bound to 12 copies of gene product 4 (gp4) reveals a {approx}1.1-MDa assembly formed by 24 proteins. Unexpectedly, a lower-resolution structure of the full-length portal protein unveils the unique topology of the C-terminal domain, which forms a {approx}200-{angstrom}-long {alpha}-helical barrel. This domain inserts deeply into the virion and is highly conserved in the Podoviridae family. We propose that the barrel domain facilitates genome spooling onto the interior surface of the capsid during genome packaging and, in analogy to a rifle barrel, increases the accuracy of genome ejection into the host cell.

  1. ProPortal: a resource for integrated systems biology of Prochlorococcus and its phage

    E-Print Network [OSTI]

    Kelly, Libusha

    ProPortal (http://proportal.mit.edu/) is a database containing genomic, metagenomic, transcriptomic and field data for the marine cyanobacterium Prochlorococcus. Our goal is to provide a source of cross-referenced data ...

  2. ASEM Conference on Forests, forest governance and timber products trade

    E-Print Network [OSTI]

    1 ASEM Conference on Forests, forest governance and timber products trade: Scenarios and challenges:00-10:30 Co-chairs of the Conference: H.E. Chheng Kim Sun, Cambodia Cambodia, H.E. Timo Makela, European Conference ­ 4 ­ 5 May 2010 ­Phnom Penh 2 Long Ratanakoma (Cambodia) - Climate change, forest conversion

  3. Natural Phenomena Exhibited by Forest Fires

    E-Print Network [OSTI]

    Natural Phenomena Exhibited by Forest Fires J. S. BARROWS U. S. Forest Service ABSTRACT Forest fire phenomena of forest fires is related to the International Symposium topic of Fire Models. Analysis of the behavior of large-scale forest fires and smaller scale experimental fires in forest fuels permits critical

  4. Fukushima Daiichi Accident Study Information Portal Quality Assurance Review: Pre-Public Release

    SciTech Connect (OSTI)

    Kurt G. Vedros

    2012-01-01

    This design review compared the current product with the original intent set forth in the initial internet portal design found in the document: Fukushima Daiichi Database Design, Revision 5. The current revision of the Fukushima Daiichi Accident Study Information Portal (FDASIP) is 1.0.21. This revision is one that restricts access for each user based on roles granted by the project administrator. The public access revision is currently on the test server and will be considered in this review as well.

  5. Dark Matter phenomenology of intersecting D6-branes with a Stueckelberg portal

    E-Print Network [OSTI]

    Victor Martin-Lozano

    2015-10-12

    We discuss the possibility that a Stueckelberg portal connects both Standard Model and Dark Matter sectors. The particle responsible of this portal is the lightest Z' boson that induces isospin-violating interactions. This property leads to a rich phenomenology for the direct detection and collider experiments that can constraint the parameter space of this kind of models and can be tested in the future.

  6. Isolation and characterization of portal branch ligation-stimulated Hmga2-positive bipotent hepatic progenitor cells

    SciTech Connect (OSTI)

    Sakai, Hiroshi; Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 B51, Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503 ; Tagawa, Yoh-ichi; Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 B51, Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503; PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 ; Tamai, Miho; Motoyama, Hiroaki; Ogawa, Shinichiro; McEwen Center for Regenerative Medicine, University Health Network, 190 Elizabeth Street, Toronto, Ont., Canada M5G 2C4 ; Soeda, Junpei; Nakata, Takenari; Miyagawa, Shinichi

    2010-12-17

    Research highlights: {yields} Hepatic progenitor cells were isolated from the portal branch-ligated liver of mice. {yields} Portal branch ligation-stimulated hepatic progenitor cells (PBLHCs) express Hmga2. {yields} PBLHCs have bidirectional differentiation capability in vitro. -- Abstract: Hepatic stem/progenitor cells are one of several cell sources that show promise for restoration of liver mass and function. Although hepatic progenitor cells (HPCs), including oval cells, are induced by administration of certain hepatotoxins in experimental animals, such a strategy would be inappropriate in a clinical setting. Here, we investigated the possibility of isolating HPCs in a portal branch-ligated liver model without administration of any chemical agents. A non-parenchymal cell fraction was prepared from the portal branch-ligated or non-ligated lobe, and seeded onto plates coated with laminin. Most of the cells died, but a small number were able to proliferate. These proliferating cells were cloned as portal branch ligation-stimulated hepatic cells (PBLHCs) by the limiting dilution method. The PBLHCs expressed cytokeratin19, albumin, and Hmga2. The PBLHCs exhibited metabolic functions such as detoxification of ammonium ions and synthesis of urea on Matrigel-coated plates in the presence of oncostatin M. In Matrigel mixed with type I collagen, the PBLHCs became rearranged into cystic and tubular structures. Immunohistochemical staining demonstrated the presence of Hmga2-positive cells around the interlobular bile ducts in the portal branch-ligated liver lobes. In conclusion, successful isolation of bipotent hepatic progenitor cell clones, PBLHCs, from the portal branch-ligated liver lobes of mice provides the possibility of future clinical application of portal vein ligation to induce hepatic progenitor cells.

  7. Intrahepatic Left to Right Portoportal Venous Collateral Vascular Formation in Patients Undergoing Right Portal Vein Ligation

    SciTech Connect (OSTI)

    Lienden, K. P. van; Hoekstra, L. T.; Bennink, R. J.; Gulik, T. M. van

    2013-12-15

    Purpose: We investigated intrahepatic vascular changes in patients undergoing right portal vein ligation (PVL) or portal vein embolization (PVE) in conjunction with the ensuing hypertrophic response and function of the left liver lobe. Methods: Between December 2008 and October 2011, 7 patients underwent right PVL and 14 patients PVE. Computed tomographic (CT) volumetry to assess future remnant liver (FRL) and functional hepatobiliary scintigraphy were performed in all patients before and 3 weeks after portal vein occlusion. In 18 patients an intraoperative portography was performed to assess perfusion through the occluded portal branches. Results: In all patients after initially successful PVL, reperfused portal veins were observed on CT scan 3 weeks after portal occlusion. This was confirmed in all cases during intraoperative portography. Intrahepatic portoportal collaterals were identified in all patients in the PVL group and in one patient in the PVE group. In all other PVE patients, complete occlusion of the embolized portal branches was observed on CT scan and on intraoperative portography. The median increase of FRL volume after PVE was 41.6 % (range 10-305 %), and after PVL was only 8.1 % (range 0-102 %) (p = 0.179). There were no differences in FRL function between both groups. Conclusion: Preoperative PVE and PVL are both methods to induce hypertrophy of the FRL in anticipation of major liver resection. Compared to PVE, PVL seems less efficient in inducing hypertrophy of the nonoccluded left lobe. This could be caused by the formation of intrahepatic portoportal neocollateral vessels, through which the ligated portal branches are reperfused within 3 weeks.

  8. Staged Transcatheter Treatment of Portal Hypoplasia and Congenital Portosystemic Shunts in Children

    SciTech Connect (OSTI)

    Bruckheimer, Elchanan Dagan, Tamir; Atar, Eli; Schwartz, Michael; Kachko, Ludmila; Superina, Riccardo; Amir, Gabriel; Shapiro, Rivka; Birk, Einat

    2013-12-15

    Purpose: Congenital portosystemic shunts (CPSS) with portal venous hypoplasia cause hyperammonemia. Acute shunt closure results in portal hypertension. A transcatheter method of staged shunt reduction to afford growth of portal vessels followed by shunt closure is reported. Methods: Pressure measurements and angiography in the CPSS or superior mesenteric artery (SMA) during temporary occlusion of the shunt were performed. If vessels were diminutive and the pressure was above 18 mmHg, a staged approach was performed, which included implantation of a tailored reducing stent to reduce shunt diameter by {approx}50 %. Recatheterization was performed approximately 3 months later. If the portal pressure was below 18 mmHg and vessels had developed, the shunt was closed with a device. Results: Six patients (5 boys, 1 girl) with a median age of 3.3 (range 0.5-13) years had CPSS portal venous hypoplasia and hyperammonemia. Five patients underwent staged closure. One patient tolerated acute closure. One patient required surgical shunt banding because a reducing stent could not be positioned. At median follow-up of 3.8 (range 2.2-8.4) years, a total of 21 procedures (20 transcatheter, 1 surgical) were performed. In all patients, the shunt was closed with a significant reduction in portal pressure (27.7 {+-} 11.3 to 10.8 {+-} 1.8 mmHg; p = 0.016), significant growth of the portal vessels (0.8 {+-} 0.5 to 4.0 {+-} 2.4 mm; p = 0.037), and normalization of ammonia levels (202.1 {+-} 53.6 to 65.7 {+-} 9.6 {mu}mol/L; p = 0.002) with no complications. Conclusion: Staged CPSS closure is effective in causing portal vessel growth and treating hyperammonemia.

  9. Carbon sequestration

    E-Print Network [OSTI]

    Carbon sequestration is the process of capture and long-term storage of atmospheric carbon dioxide (CO 2).[1] Carbon sequestration describes long-term storage of carbon dioxide or other forms of carbon to either mitigate or defer global warming and avoid ...

  10. Forest Research Wildfires in Wales

    E-Print Network [OSTI]

    ,000 recorded grassfires and nearly 550 forest fires in South Wales; this equates to eight times more per unit

  11. The design and fabrication of two portal vein flow phantoms by different methods

    SciTech Connect (OSTI)

    Yunker, Bryan E. Lanning, Craig J.; Shandas, Robin; Hunter, Kendall S.; Chen, S. James

    2014-02-15

    Purpose: This study outlines the design and fabrication techniques for two portal vein flow phantoms. Methods: A materials study was performed as a precursor to this phantom fabrication effort and the desired material properties are restated for continuity. A three-dimensional portal vein pattern was created from the Visual Human database. The portal vein pattern was used to fabricate two flow phantoms by different methods with identical interior surface geometry using computer aided design software tools and rapid prototyping techniques. One portal flow phantom was fabricated within a solid block of clear silicone for use on a table with Ultrasound or within medical imaging systems such as MRI, CT, PET, or SPECT. The other portal flow phantom was fabricated as a thin walled tubular latex structure for use in water tanks with Ultrasound imaging. Both phantoms were evaluated for usability and durability. Results: Both phantoms were fabricated successfully and passed durability criteria for flow testing in the next project phase. Conclusions: The fabrication methods and materials employed for the study yielded durable portal vein phantoms.

  12. Forest fires: from economic assessment

    E-Print Network [OSTI]

    Pettenella, Davide

    1 Forest fires: from economic assessment to governance Laura Secco, Davide Pettenella and Mauro context) Contribute of ongoing research (A model to quantify forest fires costs) Proposal for future research (An ACF approach to stakeholders analysis) Final remarks Background Background - 1 Forest fires

  13. A DATA-CENTERED COLLABORATION PORTAL TO SUPPORT GLOBAL CARBON-FLUX ANALYSIS

    E-Print Network [OSTI]

    Agarwal, Deborah A.

    2010-01-01

    met data files. The other, ancillary data include relativelyAn important aspect of the ancillary data is that eachmore information about ancillary data and related reporting

  14. Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose

    E-Print Network [OSTI]

    Nair, Sankar

    Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose of sustainable products such as nanocellulose and biocomposites from forest biomass; biorefining to develop high

  15. CO2 balance of boreal, temperate, and tropical forests derived from a global database

    SciTech Connect (OSTI)

    Luyssaert, S. [University of Antwerp; Inglima, I. [Second University of Naples; Jung, M. [Max Planck Institute for Biogeochemistry; Reichstein, Markus [Max Planck Institute for Biogeochemistry; Papale, D. [University of Tuscia; Piao, S. [LSCE, Orme des Merisiers; Schulze, E.-D. [Max Planck Institute for Biogeochemistry; Wingate, L. [University of Edinburgh; Matteucci, G. [CNR-ISAFOM; Aubinet, M. [Faculte Universitaire des Sciences Agronomiques de Gembloux; Beer, C. [Max Planck Institute for Biogeochemistry; Bernhofer, C. [Technische Universitat Dresden; Black, K. G. [University College, Dublin; Bonal, D. [INRA Kourou - UMR EcoFog; Chambers, J. [Tulane University; Ciais, P. [LSCE, Orme des Merisiers; Davis, Ken J. [Pennsylvania State University; Delucia, Evan H. [University of Illinois; Dolman, A. J. [Universitate Amsterdam; Don, A. [Max Planck Institute for Biogeochemistry; Gielen, B. [University of Antwerp; Grace, John [University of Edinburgh; Granier, A. [INRA EEF; Grelle, A. [Swedish University of Agricultural Sciences, Upsalla, Sweden; Griffis, T. [University of Minnesota; Grunwald, T. [Technische Universitat Dresden; Guidolotti, G. [University of Tuscia; Hanson, P. J. [Oak Ridge National Laboratory (ORNL); Harding, R. [Center of Ecology and Hydrology, Edinburgh; Hollinger, D. [USDA Forest Service; Kolari, P. [University of Helsinki; Kruijt, B. [Alterra; Kutsch, W. [Max Planck Institute for Biogeochemistry; Lagergren, F. [Lund University, Sweden; Laurila, T. [Finnish Meteorological institute; Law, B. [Oregon State University; Le Maire, G. [LSCE, Orme des Merisiers; Lindroth, A. [Lund University, Sweden; Magnani, F. [Universita di Bologna; Marek, M. [Academy of Sciences of the Czech Republic; Mateus, J. [Instituto Superior Tecnico, Portugal; Migliavacca, M. [Universita degli Studi di Milano-Bicocca; Mission, L. [University of California, Berkeley; Montagnani, L. [Bolzano, Agency for the Environment; Moncrief, J. [University of Edinburgh; Moors, E. [Alterra; Munger, J. W. [University of Oxford; Nikinmaa, E. [University of Helsinki; Loustau, D. [INRA EPHYSE; Pita, G. [Instituto Superior Tecnico, Portugal; Rebmann, C. [Max Planck Institute for Biogeochemistry; Richardson, A. D. [University of New Hampshire; Roupsard, O. [CIRAD; Saigusa, N. [National Institute of Advanced Industrial Science and Technology, Japan; Sanz, M. J. [CEAM, Valencia, Spain; Seufert, G. [Joint Research Centre, Italy; Sorensen, L. [Riso National Laboratory, Roskilde, Denmark; Tang, J. [University of Minnesota; Valentini, R. [University of Tuscia; Vesala, T. [University of Helsinki; Janssens, I. A. [University of Antwerp

    2007-01-01

    Forests sequester large amounts of atmospheric carbon. However, considerable uncertainties remain regarding the fate of this carbon over both short and long timescales. Relevant data to address these uncertainties have been and are being collected at many sites around the world, but synthesis of these data is still sparse. To facilitate synthesis activities, we have assembled a comprehensive global database for forest ecosystems, which includes carbon budget variables (fluxes and stocks), ecosystem traits (e.g. leaf area index, age) as well as ancillary site information such as management regime, climate and soil characteristics. This can be used to: quantify global, regional to biome-specific carbon-budgets, to re-examine established relationships, test emerging hypotheses about ecosystem functioning (e.g. a constant NEP to GPP), and provide benchmarks for model evaluations. Our synthesis highlighted that globally, gross primary production of forests benefited from higher temperatures and precipitation whereas net primary production saturated beyond a threshold of 1500 mm precipitation or a mean annual temperature of 10 C. The global pattern in NEP was found insensitive to climate and appears to be mainly determined by non-climatic conditions such as successional stage, management, site history and site disturbance. At the biome level, only the carbon fluxes in temperate humid evergreen and temperate humid deciduous forests were sufficiently robust. All other biomes still need further study to reduce uncertainties in their carbon balance. Carbon budgets of boreal semi-arid and tropical semi-arid forests would benefit most from additional data inputs. Closing the CO2-balances of specific biomes required the introduction of closure terms. These closure terms were substantial for all biomes and suggested that to better close carbon balances, more data are needed especially on respiratory processes, advection and on non-CO2 carbon fluxes.

  16. developing and forests: finding

    E-Print Network [OSTI]

    ://www.ncreif.org/indices/timberland.phtml. T he chief attribute of the forestry asset class is its superior historical risk- return pro le producing growing sites and lower establishment and labour costs than the temperate forests of mature products make Africa an attractive forestry option. Typical emerging market risks as well as environmental

  17. FOREST CERTIFICATION January 2008

    E-Print Network [OSTI]

    , the unintended consequence of government regulation in the global marketplace has been to shift the supply agendas of industrial associations, environmental organizations, government agencies, and forest landowner, certification has become a focal point for the wide range of social, cultural, environmental and economic

  18. Forest Service Research Note

    E-Print Network [OSTI]

    management problems, such as Planning-Programing-Budgeting, will require automated procedures to col- lect in terms of products and services and alter- native methods of producing them . The out- puts from PPBS- semble forest data up to an economic limit of about 50,000 lines of map data at an average cost of 0

  19. Greenhouse gas emissions from forest, land use and biomass burning in Tanzania

    SciTech Connect (OSTI)

    Matitu, M.R.

    1994-12-31

    Carbon dioxide (CO{sub 2}) and methane (CH{sub 4}) gases are the main contributors to the greenhouse effect that consequently results in global warming. This paper examines the sources and sinks of these gases from/to forest, land use and biomass burning and their likely contribution to climate change using IPCC/OECD methodology. Emissions have been calculated in mass units of carbon and nitrogen Emissions and uptake have been summed for each gas and the emissions converted to full molecular weights. Mismanagement of forests and land misuse have contributed much to greenhouse gas emissions in Tanzania. For example, cultivation methods, forest clearing, burning of savannah grass and indiscriminate logging (non-sustainable logging) have contributed significantly to greenhouse gas emissions. These categories contribute more than 90% of total CO{sub 2} emissions. However, the study shows that shifting cultivation, savannah burning and forest clearing for conversion to permanent crop land and pasture are the main contributors.

  20. Management and Analysis of Radiation Portal Monitor Data

    SciTech Connect (OSTI)

    Rowe, Nathan C; Alcala, Scott; Crye, Jason Michael; Lousteau, Angela L

    2014-01-01

    Oak Ridge National Laboratory (ORNL) receives, archives, and analyzes data from radiation portal monitors (RPMs). Over time the amount of data submitted for analysis has grown significantly, and in fiscal year 2013, ORNL received 545 gigabytes of data representing more than 230,000 RPM operating days. This data comes from more than 900 RPMs. ORNL extracts this data into a relational database, which is accessed through a custom software solution called the Desktop Analysis and Reporting Tool (DART). DART is used by data analysts to complete a monthly lane-by-lane review of RPM status. Recently ORNL has begun to extend its data analysis based on program-wide data processing in addition to the lane-by-lane review. Program-wide data processing includes the use of classification algorithms designed to identify RPMs with specific known issues and clustering algorithms intended to identify as-yet-unknown issues or new methods and measures for use in future classification algorithms. This paper provides an overview of the architecture used in the management of this data, performance aspects of the system, and additional requirements and methods used in moving toward an increased program-wide analysis paradigm.

  1. Emergence of the Electroweak Scale through the Higgs Portal

    E-Print Network [OSTI]

    Christoph Englert; Joerg Jaeckel; Valentin V. Khoze; Michael Spannowsky

    2013-02-12

    Having discovered a candidate for the final piece of the Standard Model, the Higgs boson, the question remains why its vacuum expectation value and its mass are so much smaller than the Planck scale (or any other high scale of new physics). One elegant solution was provided by Coleman and Weinberg, where all mass scales are generated from dimensionless coupling constants via dimensional transmutation. However, the original Coleman-Weinberg scenario predicts a Higgs mass which is too light; it is parametrically suppressed compared to the mass of the vectors bosons, and hence is much lighter than the observed value. In this paper we argue that a mass scale, generated via the Coleman-Weinberg mechanism in a hidden sector and then transmitted to the Standard Model through a Higgs portal, can naturally explain the smallness of the electroweak scale compared to the UV cutoff scale, and at the same time be consistent with the observed value. We analyse the phenomenology of such a model in the context of present and future colliders and low energy measurements.

  2. Vector Higgs-portal dark matter and the invisible Higgs

    E-Print Network [OSTI]

    Oleg Lebedev; Hyun Min Lee; Yann Mambrini

    2012-01-10

    The Higgs sector of the Standard Model offers a unique probe of the hidden sector. In this work, we explore the possibility of renormalizable Higgs couplings to the hidden sector vector fields which can constitute dark matter (DM). Abelian gauge sectors with minimal field content, necessary to render the gauge fields massive, have a natural Z_2 parity. This symmetry ensures stability of the vector fields making them viable dark matter candidates, while evading the usual electroweak constraints. We illustrate this idea with the Stueckelberg and Higgs mechanisms. Vector DM is consistent with the WMAP, XENON100, and LHC constraints, while it can affect significantly the invisible Higgs decay. Due to the enhanced branching ratio for the Higgs decay into the longitudinal components of the vector field, the vector Higgs portal provides an efficient way to hide the Higgs at the LHC. This could be the reason why the latest combined ATLAS/CMS data did not bring evidence for the existence of the Higgs boson.

  3. Carbon Smackdown: Cookstoves for the developing world

    ScienceCinema (OSTI)

    Ashok Gadgil, Kayje Booker, and Adam Rausch

    2010-09-01

    In this June 30, 2010 Berkeley Lab summer lecture, learn how efficient cookstoves for the developing world ? from Darfur to Ethiopia and beyond ? are reducing carbon dioxide emissions, saving forests, and improving health. Berkeley Lab's Ashok Gadgil, Kayje Booker, and Adam Rausch discuss why they got started in this great challenge and what's next.

  4. Management of Philippine tropical forests: Implications to global warming

    SciTech Connect (OSTI)

    Lasco, R.D.

    1997-12-31

    The first part of the paper presents the massive changes in tropical land management in the Philippines as a result of a {open_quotes}paradigm shift{close_quotes} in forestry. The second part of the paper analyzes the impacts of the above management strategies on global warming, in general, preserved forests are neither sinks not sources of greenhouse gasses (GHG). Reforestation activities are primarily net sinks of carbon specially the use of fast growing reforestation species. Estimates are given for the carbon-sequestering ability of some commonly used species. The last part of the paper policy recommendations and possible courses of action by the government to maximize the role of forest lands in the mitigation of global warming. Private sector initiatives are also explored.

  5. Canopy Carbon Gain and Water Use: Analysis of Old-growth Conifers in

    E-Print Network [OSTI]

    structure, species composition, and climate. Key words: biogenic carbon emissions; canopy processes; forest;to the global challenge of increasing atmospheric carbon dioxide (CO2). One approach for predictingCanopy Carbon Gain and Water Use: Analysis of Old-growth Conifers in the Pacific Northwest William

  6. Carbon concentration variations in the roots, stem and crown of mature Pinus pinaster (Ait.)

    E-Print Network [OSTI]

    Bert, Didier

    Carbon concentration variations in the roots, stem and crown of mature Pinus pinaster (Ait.) Didier. Evaluations of carbon fixation and storage in this forest are facilitated by its general homogeneity for expansion factors and carbon concentration in the biomass, and more accurate results could be obtained

  7. Carbon Stocks and Projections on Public Forestlands in the United States, 19522040

    E-Print Network [OSTI]

    ARTICLES Carbon Stocks and Projections on Public Forestlands in the United States, 1952­2040 JAMES are publicly owned; they represent a substantial area of potential carbon sequestration in US for- ests inventoried than privately owned forests. Thus, less information is avail- able about their role as carbon

  8. Carbon Smackdown: Carbon Capture

    SciTech Connect (OSTI)

    Jeffrey Long

    2010-07-12

    In this July 9, 2010 Berkeley Lab summer lecture, Lab scientists Jeff Long of the Materials Sciences and Nancy Brown of the Environmental Energy Technologies Division discuss their efforts to fight climate change by capturing carbon from the flue gas of power plants, as well as directly from the air

  9. Carbon Smackdown: Carbon Capture

    ScienceCinema (OSTI)

    Jeffrey Long

    2010-09-01

    In this July 9, 2010 Berkeley Lab summer lecture, Lab scientists Jeff Long of the Materials Sciences and Nancy Brown of the Environmental Energy Technologies Division discuss their efforts to fight climate change by capturing carbon from the flue gas of power plants, as well as directly from the air

  10. Risk-Based Sensor Placement Methodology - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100NationalquestionnairesDrought-induced forest mortalityEnergy Analysis

  11. Transsinusoidal Portal Vein Embolization with Ethylene Vinyl Alcohol Copolymer (Onyx): A Feasibility Study in Pigs

    SciTech Connect (OSTI)

    Smits, Maarten L. J.; Vanlangenhove, Peter Sturm, Emiel J. C.; Bosch, Maurice A. A. J. van den; Hav, Monirath Praet, Marleen; Vente, Maarten A. D.; Snaps, Frederic R.; Defreyne, Luc

    2012-10-15

    Purpose: Portal vein embolization is performed to increase the future liver remnant before liver surgery in patients with liver malignancies. This study assesses the feasibility of a transsinusoidal approach for portal vein embolization (PVE) with the ethylene vinyl alcohol copolymer, Onyx. Methods: Indirect portography through contrast injection in the cranial mesenteric artery was performed in eight healthy pigs. Onyx was slowly injected through a microcatheter from a wedged position in the hepatic vein and advanced through the liver lobules into the portal system. The progression of Onyx was followed under fluoroscopy, and the extent of embolization was monitored by indirect portography. The pigs were euthanized immediately (n = 2), at 7 days (n = 4), or at 21 days postprocedure (n = 2). All pigs underwent necropsy and the ex vivo livers were grossly and histopathologically analyzed. Results: Transsinusoidal PVE was successfully performed in five of eight pigs (63%). In 14 of 21 injections (67%), a segmental portal vein could be filled completely. A mean of 1.6 liver lobes per pig was embolized (range 1-2 lobes). There were no periprocedural adverse events. Focal capsular scarring was visible on the surface of two resected livers, yet the capsules remained intact. Histopathological examination showed no signs of recanalization or abscess formation. Mild inflammatory reaction to Onyx was observed in the perivascular parenchyma. Conclusions: The porcine portal vein can be embolized through injection of Onyx from a wedged position in the hepatic vein. Possible complications of transsinusoidal PVE and the effect on contralateral hypertrophy need further study.

  12. Forests for People Access, recreation & tourism

    E-Print Network [OSTI]

    Strategy Forests for People Access, recreation & tourism on the national forest estate #12;#12;Access, recreation and tourism on the national forest estate | 3 Forests for People Access, recreation and tourism on the national forest estate Setting the scene Everyone has a right of responsible access

  13. By Sandy Benson Forest Fuels Management Specialist,

    E-Print Network [OSTI]

    Farritor, Shane

    -intensity lightning fires kept tree density down and the forests were very well adapted to fire because of the healthyBy Sandy Benson Forest Fuels Management Specialist, Nebraska Forest Service Thinning is an excellent management tool for forest landowners to use to improve forest health and productivity

  14. Are Forest Fires Predictable?

    E-Print Network [OSTI]

    K. Malarz; S. Kaczanowska; K. Kulakowski

    2002-04-23

    Dynamic mean field theory is applied to the problem of forest fires. The starting point is the Monte Carlo simulation in a lattice of million cells. The statistics of the clusters is obtained by means of the Hoshen--Kopelman algorithm. We get the map $p_n\\to p_{n+1}$, where $p_n$ is the probability of finding a tree in a cell, and $n$ is the discrete time. We demonstrate that the time evolution of $p$ is chaotic. The arguments are provided by the calculation of the bifurcation diagram and the Lyapunov exponent. The bifurcation diagram reveals several windows of stability, including periodic orbits of length three, five and seven. For smaller lattices, the results of the iteration are in qualitative agreement with the statistics of the forest fires in Canada in years 1970--2000.

  15. DEVELOPMENT OF A PORTAL MONITOR FOR UF6 CYLINDER VERIFICATION

    SciTech Connect (OSTI)

    Smith, Leon E.; Curtis, Michael M.; Shaver, Mark W.; Benz, Jacob M.; Misner, Alex C.; Mace, Emily K.; Jordan, David V.; Noss, Daniel; Ford, Herbert

    2009-10-06

    International Atomic Energy Agency (IAEA) inspectors currently perform periodic inspections at uranium enrichment plants to verify UF6 cylinder enrichment declarations. Measurements are performed with handheld high-resolution sensors on a sampling of cylinders taken to be representative of the facility’s operations. As additional enrichment plans come online to support the expansion of nuclear power, reducing person-days of inspection will take on greater importance. Pacific Northwest National Laboratory (PNNL) is developing a concept to automate the verification of enrichment plant cylinders to enable 100% product-cylinder verification and potentially, mass-balance calculations on the facility as a whole (by also measuring feed and tails cylinders). The Automated Cylinder Enrichment Verification System (ACEVS) would be located at key measurement points and will positively identify each cylinder, measure its mass and enrichment, store the data along with operator inputs in a secure database, and maintain continuity of knowledge on measured cylinders until IAEA inspector arrival. Given the potential for reduced inspector presence, the operational and manpower-reduction benefits of the portal concept are clear. However, it is necessary to assess whether the cylinder portal concept can meet, or potentially improve upon, today’s U-235 enrichment assay performance. PNNL’s ACEVS concept utilizes sensors that could be operated in an unattended mode: moderated He-3 neutron detectors and large NaI(Tl) scintillators for gamma-ray spectroscopy. The medium-resolution NaI(Tl) scintillators are a sacrifice in energy resolution but do provide high collection efficiency for signatures above 1 MeV. The He-3/NaI sensor combination allows the exploitation of additional, more-penetrating signatures than those currently utilized: Neutrons produced from F-19(?,n) reactions (spawned primarily from U-234 alpha emission) and high-energy gamma rays (extending up to 10 MeV) induced by neutrons interacting in the steel cylinder. These signatures are indirect measures of U-235 that require a relatively stable U-234/U-235 ratio in the product material in order to be useful. The hypothesis of this work is that the U-234/U-235 ratio is sufficiently constant, for the specific facility where the automated system is installed, to rely on neutron and high-energy gamma-ray signatures for indirect measurement of U-235. Further, these highly penetrating signatures can be combined with a modified form of NaI-based 185-keV enrichment measurements to meet target uncertainties for the verification of product cylinders, with the additional benefits of full-volume assay of the cylinder and 100% product-cylinder verification (as opposed to today’s sampling-based approach). This paper focuses on the enrichment measurement aspects of the ACEVS concept: neutron and high-energy gamma-ray signatures, the radiation sensors designed to collect those signatures, and proof-of-principle cylinder measurements and analysis. Preliminary analysis indicates that an automated cylinder verification approach has the potential to meet target uncertainty values for 30B products cylinders (5%), assuming ore-based enrichment feed and a facility-specific calibration. Also described is the additional work needed to more definitively assess the concept’s viability, particularly through a better understanding of the U-234/U-235 ratio variability in modern enrichment plants.

  16. Method of determining forest production from remotely sensed forest parameters

    DOE Patents [OSTI]

    Corey, J.C.; Mackey, H.E. Jr.

    1987-08-31

    A method of determining forest production entirely from remotely sensed data in which remotely sensed multispectral scanner (MSS) data on forest 5 composition is combined with remotely sensed radar imaging data on forest stand biophysical parameters to provide a measure of forest production. A high correlation has been found to exist between the remotely sensed radar imaging data and on site measurements of biophysical 10 parameters such as stand height, diameter at breast height, total tree height, mean area per tree, and timber stand volume.

  17. Fire Effects on Forest Soil: Cave Gulch Fire, Helena National Forest TABLE OF CONTENTS

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    Fire Effects on Forest Soil: Cave Gulch Fire, Helena National Forest #12;ii TABLE OF CONTENTS ecosystems. Historically, ponderosa pine (Pinus contorta) forest systems have had low intensity fires every forests. Once forest managers began suppressing forest fires, vegetation and debris accumulated

  18. Prescribed burning and mechanical thinning effects on belowground conditions and soil respiration in a mixed-conifer forest, California

    E-Print Network [OSTI]

    Chen, Jiquan

    Prescribed burning and mechanical thinning effects on belowground conditions and soil respiration. Introduction Carbon storage in belowground biomass is twice that of atmospheric carbon (C), and soil; Raich and Potter, 1995; Janssens et al., 2001; Lal, 2008). More specifically, forest soils contain about

  19. Assessing the extent of agriculture/pasture and secondary succession forest in the Brazilian Legal Amazon using SPOT VEGETATION data

    E-Print Network [OSTI]

    Lisboa, Universidade Técnica de

    influence on the observed increase in atmospheric carbon dioxide concentration and consequent climatic Técnico, Lisboa, Portugal. c Remote Sensing Department, Instituto Nacional de Pesquisas Espaciais, Av. dos vegetation cover in the past, acting as a source of carbon. On the contrary, the secondary succession forest

  20. The New Mexico State Climate Office and CARSAME Portal for Community Access to Meteorological, Satellite, and Model Archives

    E-Print Network [OSTI]

    The New Mexico State Climate Office and CARSAME Portal for Community Access to Meteorological and Environmental Sciences New Mexico State University dwdubois@nmsu.edu Our community data portal is using in Agriculture, Meteorology and Environment (CARSAME) and New Mexico Climate Center but not available