中文版 | English

在结果中检索

GSTDTAP

浏览/检索结果: 共4条，第1-4条 帮助

已选(0)清除 条数/页：   排序方式：
Evaluating a Coupled Phenology-Surface Energy Balance Model to Understand Stream-Subsurface Temperature Dynamics in a Mixed-Use Farmland Catchment 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (2) : 1675-1697
作者:  Qiu, Han;  Blaen, Phillip;  Comer-Warner, Sophie;  Hannah, David M.;  Krause, Stefan;  Phanikumar, Mantha S.
收藏  |  浏览/下载：24/0  |  提交时间：2019/11/26
catchment hydrology  stream temperature  hyporheic exchange  energy budget  surface-subsurface interactions  groundwater  
Prediction and uncertainty analysis of a parsimonious floodplain surface water-groundwater interaction model 期刊论文
WATER RESOURCES RESEARCH, 2017, 53 (9)
作者:  Maier, Nadine;  Breuer, Lutz;  Kraft, Philipp
收藏  |  浏览/下载：15/0  |  提交时间：2019/04/09
physical-deterministic model  groundwater-surface water interactions  subsurface equation  uncertainty  prediction  floodplain  
Examination of the seepage face boundary condition in subsurface and coupled surface/subsurface hydrological models 期刊论文
WATER RESOURCES RESEARCH, 2017, 53 (3)
作者:  Scudeler, C.;  Paniconi, C.;  Pasetto, D.;  Putti, M.
收藏  |  浏览/下载：17/0  |  提交时间：2019/04/09
seepage face  boundary conditions  integrated hydrological modeling  surface  subsurface interactions  Richards'  equation  
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：42/0  |  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.