气候变化领域集成服务门户(CCPortal): Multiple measures of monsoon-controlled water storage in Asia

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DOI	10.1016/j.epsl.2020.116415
	Multiple measures of monsoon-controlled water storage in Asia
	Schmidt A.H.; Lüdtke S.; Andermann C.
发表日期	2020
ISSN	0012821X
卷号	546
英文摘要	Temporal water storage is a fundamental component of the terrestrial water cycle. Methods of estimating water storage variations are often limited to specific, well-monitored locations, and/or system scales. Thus, measures of storage from small systems can be difficult to compare to large systems. Here we compare three independent methods of estimating water storage variations for systems spanning over three orders of magnitude in basin area: 1) remote satellite observations (GRACE), 2) hydrograph recession curve analysis, and 3) quantifying precipitation-discharge hysteresis loops. We measured storage using all three methods for 242 watersheds in Asia (103 to 106 km2) and find that GRACE-derived storage correlates well with quantification of hysteresis terms but recession curve derived dynamic storage does not correlate with hysteresis terms or GRACE-derived storage. Thus, we argue that precipitation-discharge hysteresis may be able to be scaled to GRACE-derived storage as an independent estimate of storage for basins as small as 103 km2. Hysteresis-derived storage correlates well with mean monsoon rainfall in the upstream watershed while recession-derived dynamic storage does not. This suggests that hysteresis- and GRACE-derived storage may be input limited. In contrast, recession-derived dynamic storage does not correlate with topographic, climatic, or land cover metrics, suggesting that it may be limited by the rate at which water infiltrates into deep groundwater and then enters the river system. In addition, we find that recession-derived dynamic storage is a factor of seven lower than hysteresis-derived storage. We infer that hysteresis-derived storage includes recession curve-derived storage in addition to other storage units, such as snowpack, lakes, and soil moisture. Recession-derived dynamic storage in turn represents the annual variability in deep groundwater storage, a “leaky bucket” that is recharged from the top and “leaks” into rivers from deeper storage. These data may be able to be used to better quantify storage terms in hydrologic modeling. © 2020 Elsevier B.V.
关键词	dynamic storage GRACE groundwater recession curve transient storage
英文关键词	Atmospheric thermodynamics; Geodetic satellites; Groundwater; Hysteresis; Soil moisture; Water conservation; Annual variability; Controlled waters; Deep groundwaters; Fundamental component; Hydrologic modeling; Satellite observations; Three orders of magnitude; Water storage variation; Digital storage; GRACE; hydrological cycle; hydrological modeling; hysteresis; measurement method; monsoon; rainfall; water storage; watershed; Asia
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202879
作者单位	Geology Department, Oberlin College, 403 Carnegie Building, 52 W. Lorain St., Oberlin, OH 44074, United States; Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Section 4.4 Hydrology, Telegrafenberg, Potsdam, 14473, Germany; Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Section 4.6 Geomorphology, Telegrafenberg, Potsdam, 14473, Germany
推荐引用方式 GB/T 7714	Schmidt A.H.,Lüdtke S.,Andermann C.. Multiple measures of monsoon-controlled water storage in Asia[J],2020,546.
APA	Schmidt A.H.,Lüdtke S.,&Andermann C..(2020).Multiple measures of monsoon-controlled water storage in Asia.Earth and Planetary Science Letters,546.
MLA	Schmidt A.H.,et al."Multiple measures of monsoon-controlled water storage in Asia".Earth and Planetary Science Letters 546(2020).