DOI: 10.1002/2014GL059323
论文题名: A GRACE-based water storage deficit approach for hydrological drought characterization
作者: Thomas A.C. ; Reager J.T. ; Famiglietti J.S. ; Rodell M.
刊名: Geophysical Research Letters
ISSN: 0094-10337
EISSN: 1944-10068
出版年: 2014
卷: 41, 期: 5 起始页码: 1537
结束页码: 1545
语种: 英语
英文关键词: drought severity
; GRACE terrestrial water storage
; GRACE-identified hydrological drought
; water storage deficit
Scopus关键词: Geodetic satellites
; NASA
; Drought severity
; Grace terrestrial water storages
; Gravity recovery and climate experiment satellites
; Hydrological droughts
; Meteorological drought
; Quantitative approach
; Terrestrial water storage
; Water storage
; Drought
; climatology
; database
; drought
; GRACE
; hydrological change
; time series
; water storage
; Amazon Basin
; Texas
; United States
; Zambezi Basin
英文摘要: We present a quantitative approach for measuring hydrological drought occurrence and severity based on terrestrial water storage observations from NASA's Gravity Recovery and Climate Experiment (GRACE) satellite mission. GRACE measurements are applied by calculating the magnitude of the deviation of regional, monthly terrestrial water storage anomalies from the time series' monthly climatology, where negative deviations represent storage deficits. Monthly deficits explicitly quantify the volume of water required to return to normal water storage conditions. We combine storage deficits with event duration to calculate drought severity. Drought databases are referenced to identify meteorological drought events in the Amazon and Zambezi River basins and the southeastern United States and Texas regions. This storage deficit method clearly identifies hydrological drought onset, end, and duration; quantifies instantaneous severity and peak drought magnitude; and compares well with the meteorological drought databases. It also reveals information about the hydrological effects of meteorological drought on regional water storage. Key Point GRACE-based drought severity using water storage rather than just precipitation explicitly quantifies the volume of water needed to return to normal conditions and identifies hydrological drought onset, peak magnitude, duration, and severity ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895164870&doi=10.1002%2f2014GL059323&partnerID=40&md5=68d50d67578ce04695bac387ad142c77
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7601
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth System Science, University of California, Irvine CA, United States
Recommended Citation:
Thomas A.C.,Reager J.T.,Famiglietti J.S.,et al. A GRACE-based water storage deficit approach for hydrological drought characterization[J]. Geophysical Research Letters,2014-01-01,41(5).