Terrestrial Water Storage Anomalies Associated with Drought in Southwestern USA from GPS Observations
文献类型：期刊论文
| 作者 | Jin, Shuanggen1; Zhang, Tengyu1,2 |
| 刊名 | SURVEYS IN GEOPHYSICS
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 37期号:6页码:1139-1156 |
| 关键词 | Gps Tws Drought Grace |
| ISSN号 | 0169-3298 |
| DOI | 10.1007/s10712-016-9385-z |
| 英文摘要 | The Earth's surface fluid mass redistribution, e.g., groundwater depletion and severe drought, causes the elastic surface deformation, which can be measured by global positioning system (GPS). In this paper, the continuous GPS observations are used to estimate the terrestrial water storage (TWS) changes in southwestern USA, which have a good agreement with TWS changes derived from Gravity Recovery And Climate Experiment (GRACE) and hydrological models. The seasonal variation is mostly located in the Rocky mountain range and Mississippi river watershed. The largest amplitude of the seasonal variation is between 12 and 15 cm in equivalent water thickness. The timing and duration of TWS anomalies caused by the severe drought in 2012 are observed by the GPS-derived TWS, which are confirmed by the GRACE results. Different hydrological models are further used for comparison with GPS and GRACE results. The magnitude of TWS depletion from GRACE and GPS observations during the drought is larger than that from hydrological models, which indicates that the drought was caused by comparable groundwater and surface water depletion. The interannual TWS changes from GPS are also consistent with the precipitation pattern over the past 6 years, which further confirms the severe drought in 2012. This study demonstrates that continuous GPS observations have the potential as real-time drought indicator. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000386578500005 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.226.72/handle/331011/32713]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Jin, Shuanggen |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Shuanggen,Zhang, Tengyu. Terrestrial Water Storage Anomalies Associated with Drought in Southwestern USA from GPS Observations[J]. SURVEYS IN GEOPHYSICS,2016,37(6):1139-1156. |
| APA | Jin, Shuanggen,&Zhang, Tengyu.(2016).Terrestrial Water Storage Anomalies Associated with Drought in Southwestern USA from GPS Observations.SURVEYS IN GEOPHYSICS,37(6),1139-1156. |
| MLA | Jin, Shuanggen,et al."Terrestrial Water Storage Anomalies Associated with Drought in Southwestern USA from GPS Observations".SURVEYS IN GEOPHYSICS 37.6(2016):1139-1156. |
入库方式： OAI收割
来源：上海天文台
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