Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023836 |
In Situ and GRACE-Based Groundwater Observations: Similarities, Discrepancies, and Evaluation in the High Plains Aquifer in Kansas | |
Brookfield, A. E.1,2; Hill, M. C.3; Rodell, M.4; Loomis, B. D.4; Stotler, R. L.3; Porter, M. E.3; Bohling, G. C.1 | |
2018-10-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:10页码:8034-8044 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Relating Gravity Recovery and Climate Experiment (GRACE)-derived terrestrial water storage anomaly (aTWS) variations to in situ groundwater data is important to understanding GRACE data utility. Here GRACE-derived annual changes in aTWS (Delta TWS) from National Aeronautics and Space Administration's Jet Propulsion Laboratory and Goddard Space Flight Center are compared to annual changes in saturated groundwater volumes (Delta GW) in the High Plains aquifer (HPA) and overlying alluvial aquifers in Kansas. Regression analysis suggests that trends in Delta TWS are strongly related to trends in Delta GW(alluvial) and weakly related to trends in Delta GW(HPA), although the magnitude of Delta TWS is much larger than Delta GW(alluvial) and is similar to Delta GW(HPA). Unlike alluvial aquifers, a thick vadose zone overlies the HPA. Estimates of changes in vadose zone water content (Delta VZ) using GRACE products are similar in magnitude to annual variations in North American Land Data Assimilation soil moisture data, suggesting an unexpected dominance of Delta VZ in Delta TWS despite significant groundwater depletion. Results demonstrate that water storage changes in shallow alluvial aquifers, the root zone, the deep vadose zone, and the HPA itself are all significant in the HPA region of Kansas. Consequently, GRACE observations cannot, alone, be taken to reflect variations in saturated zone groundwater storage in the HPA, or other large, heavily used aquifers subject to substantial groundwater depletion, when deep unsaturated zones exist. GRACE can best provide guidance on regional aquifer storage changes where water storage changes in the vadose zone and perched or adjacent aquifers are well constrained. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000450726000050 |
WOS关键词 | WATER STORAGE ; CLIMATE EXPERIMENT ; GRAVITY RECOVERY ; DEPLETION ; RECHARGE ; FUTURE |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20834 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Kansas, Kansas Geol Survey, 1930 Constant Ave, Lawrence, KS 66047 USA; 2.Univ Kansas, Dept Geog & Atmospher Sci, Lawrence, KS 66045 USA; 3.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA; 4.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA |
推荐引用方式 GB/T 7714 | Brookfield, A. E.,Hill, M. C.,Rodell, M.,et al. In Situ and GRACE-Based Groundwater Observations: Similarities, Discrepancies, and Evaluation in the High Plains Aquifer in Kansas[J]. WATER RESOURCES RESEARCH,2018,54(10):8034-8044. |
APA | Brookfield, A. E..,Hill, M. C..,Rodell, M..,Loomis, B. D..,Stotler, R. L..,...&Bohling, G. C..(2018).In Situ and GRACE-Based Groundwater Observations: Similarities, Discrepancies, and Evaluation in the High Plains Aquifer in Kansas.WATER RESOURCES RESEARCH,54(10),8034-8044. |
MLA | Brookfield, A. E.,et al."In Situ and GRACE-Based Groundwater Observations: Similarities, Discrepancies, and Evaluation in the High Plains Aquifer in Kansas".WATER RESOURCES RESEARCH 54.10(2018):8034-8044. |
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