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Final Report. Evaluating the Climate Sensitivity of Dissipative Subgrid-Scale Mixing Processes and Variable Resolution in NCAR's Community Earth System Model 科技报告
来源:US Department of Energy (DOE). 出版年: 2015
作者:  Jablonowski, Christiane
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/05
Atmospheric General Circulation Models  Community Atmosphere Model (CAM  Spectral Element (CAM-SE)  variable-resolution  tropical cyclones  subgrid-scale diffusion  consistency  stratospheric dynamics  Dynamical Core Model Intercomparison Project (DCMIP)  
Final technical report. Can microbial functional traits predict the response and resilience of decomposition to global change? 科技报告
来源:US Department of Energy (DOE). 出版年: 2015
作者:  Allison, Steven D.
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
microbial community  carbon cycling  traits  extracellular enzyme  global change  
Introducing Enabling Computational Tools to the Climate Sciences: Multi-Resolution Climate Modeling with Adaptive Cubed-Sphere Grids 科技报告
来源:US Department of Energy (DOE). 出版年: 2015
作者:  Jablonowski, Christiane
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/05
Adaptive Mesh Refinement (AMR)  Chombo  Community Atmosphere Model (CAM)  refinement criterion  variable-resolution climate modeling  high-order finite-volume methods  non-hydrostatic  atmospheric dynamical core  shallow water  cubed-sphere grid  tropical  
Tonopah Test Range Air Monitoring: CY2013 Meteorological, Radiological, and Airborne Particulate Observations 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  Mizell, Steve A;  Nikolich, George;  Shadel, Craig;  McCurdy, Greg;  Etyemezian, Vicken;  Miller, Julianne J
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/05
In 1963  the U.S. Department of Energy (DOE) (formerly the Atomic Energy Commission [AEC])  implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range). This test resulted in radionuclide-contaminated soils at Clean Slate I  II  and III. This report documents observations made during on-going monitoring of radiological  meteorological  and dust conditions at stations installed adjacent to Clean Slate I and Clean Slate III and at the TTR Range Operations Control center. The primary objective of the monitoring effort is to determine if winds blowing across the Clean Slate sites are transporting particles of radionuclide-contaminated soils beyond both the physical and administrative boundaries of the sites. Results for the calendar year (CY) 2013 monitoring include: (1) the gross alpha and gross beta values from the monitoring stations are approximately equivalent to the highest values observed during the CY2012 reporting at the surrounding Community Environmental Monitoring Program (CEMP) stations (this was the latest documented data available at the time of this writing)  (2) only naturally occurring radionuclides were identified in the gamma spectral analyses  (3) the ambient gamma radiation measurements indicate that the average annual gamma exposure is similar at all three monitoring stations and periodic intervals of increased gamma values appear to be associated with storm fronts passing through the area  and (4) the concentrations of both resuspended dust and saltated sand particles generally increase with increasing wind speed. However  differences in the observed dust concentrations are likely due to differences in the soil characteristics immediately adjacent to the monitoring stations. Neither the resuspended particulate radiological analyses nor the ambient gamma radiation measurements suggest wind transport of radionuclide-contaminated soils.  
IMPACTS OF INTERACTING ELEVATED ATMOSPHERIC CO2 AND O3 ON THE STRUCTURE AND FUNCTIONING OF A NORTHERN FOREST ECOSYSTEM: OPERATING AND DECOMMISSIONING THE ASPEN FACE PROJECT 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  Burton, Andrew J.;  Zak, Donald R.;  Kubiske, Mark E.;  Pregitzer, Kurt S.
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/05
Elevated carbon dioxide  Elevated ozone  Northern forests  Aspen  Birch: Sugar maple  FACE experiment  Net primary productivity  Ecosystem carbon storage  Community composition  
Radiochemically-Supported Microbial Communities: A Potential Mechanism for Biocolloid Production of Importance to Actinide Transport 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  Moser, Duane P;  Hamilton-Brehm, Scott D;  Fisher, Jenny C;  Bruckner, James C;  Kruger, Brittany;  Sackett, Joshua;  Russell, Charles E;  Onstott, Tullis C;  Czerwinski, Ken
收藏  |  浏览/下载:17/0  |  提交时间:2019/04/05
Due to the legacy of Cold War nuclear weapons testing  the Nevada National Security Site (NNSS  formerly known as the Nevada Test Site (NTS)) contains millions of Curies of radioactive contamination. Presented here is a summary of the results of the first comprehensive study of subsurface microbial communities of radioactive and nonradioactive aquifers at this site. To achieve the objectives of this project  cooperative actions between the Desert Research Institute (DRI)  the Nevada Field Office of the National Nuclear Security Administration (NNSA)  the Underground Test Area Activity (UGTA)  and contractors such as Navarro-Interra (NI)  were required. Ultimately  fluids from 17 boreholes and two water-filled tunnels were sampled (sometimes on multiple occasions and from multiple depths) from the NNSS  the adjacent Nevada Test and Training Range (NTTR)  and a reference hole in the Amargosa Valley near Death Valley. The sites sampled ranged from highly-radioactive nuclear device test cavities to uncontaminated perched and regional aquifers. Specific areas sampled included recharge  intermediate  and discharge zones of a 100  000-km2 internally-draining province  known as the Death Valley Regional Flow System (DVRFS)  which encompasses the entirety of the NNSS/NTTR and surrounding areas. Specific geological features sampled included: West Pahute and Ranier Mesas (recharge zone)  Yucca and Frenchman Flats (transitional zone)  and the Western edge of the Amargosa Valley near Death Valley (discharge zone). The original overarching question underlying the proposal supporting this work was stated as: Can radiochemically-produced substrates support indigenous microbial communities and subsequently stimulate biocolloid formation that can affect radionuclides in NNSS subsurface nuclear test/detonation sites? Radioactive and non-radioactive groundwater samples were thus characterized for physical parameters  aqueous geochemistry  and microbial communities using both DNA- and cultivation-based tools in an effort to understand the drivers of microbial community structure (including radioactivity) and microbial interactions with select radionuclides and other factors across the range of habitats surveyed.  
Hazardous Waste Facility Permit Community Relations Plan 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Lopez, Lorraine B. [Los Alamos National Laboratory]
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Environmental Protection  Waste management  Hazardous Waste Permit Community Outreach Relations  
Final Report for DOE contract DE-FG02-98ER62609 科技报告
来源:US Department of Energy (DOE). 出版年: 2012
作者:  Webb, Thompson, III
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
Climate Models  Paleoclimatic Data  Climate Model Testing  NCAR Community Climate Model  Sensitivity Experiments  
Baseline for Climate Change: Modeling Watershed Aquatic Biodiversity Relative to Environmental and Anthropogenic Factors 科技报告
来源:US Department of Energy (DOE). 出版年: 2010
作者:  Maurakis, Eugene G
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/05
climate change  modeling biodiversity  fish communities  macroinvertebrate community  hydrologic models  
DOE ER63951-3 Final Report: An Integrated Assessment of Geochemical and Community Structure Determinants of Metal Reduction Rates in Subsurface Sediments 科技报告
来源:US Department of Energy (DOE). 出版年: 2010
作者:  Susan Pfiffner
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
Uranium reduction microbial community structure phospholipids respiratory quinones