GAMA-LLNL Alpine Basin Special Study: Scope of Work

Singleton, M J ; Visser, A ; Esser, B K ; Moran, J E

关键词: AGE ESTIMATION;    ANIONS;    CARBON ISOTOPES;    CLIMATIC CHANGE;    DRINKING WATER;    GROUND WATER;    GROUNDWATER RECHARGE;    HYDROGEN ISOTOPES;    LAWRENCE LIVERMORE NATIONAL LABORATORY;    MONITORING;    OXYGEN ISOTOPES;    SURFACE WATERS;    TEMPERATURE RANGE;    VULNERABILITY;    WATER QUALITY;   

DOI  :  10.2172/1034508
RP-ID  :  LLNL-TR-520254
PID  :  OSTI ID: 1034508
Others  :  TRN: US201204%%50

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

For this task LLNL will examine the vulnerability of drinking water supplies in foothills and higher elevation areas to climate change impacts on recharge. Recharge locations and vulnerability will be determined through examination of groundwater ages and noble gas recharge temperatures in high elevation basins. LLNL will determine whether short residence times are common in one or more subalpine basin. LLNL will measure groundwater ages, recharge temperatures, hydrogen and oxygen isotopes, major anions and carbon isotope compositions on up to 60 samples from monitoring wells and production wells in these basins. In addition, a small number of carbon isotope analyses will be performed on surface water samples. The deliverable for this task will be a technical report that provides the measured data and an interpretation of the data from one or more subalpine basins. Data interpretation will: (1) Consider climate change impacts to recharge and its impact on water quality; (2) Determine primary recharge locations and their vulnerability to climate change; and (3) Delineate the most vulnerable areas and describe the likely impacts to recharge.