气候变化领域集成服务门户(CCPortal): Long-term total water storage change from a Satellite Water Cycle reconstruction over large southern Asian basins

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DOI	10.5194/hess-24-3033-2020
	Long-term total water storage change from a Satellite Water Cycle reconstruction over large southern Asian basins
	Pellet V.; Aires F.; Papa F.; Munier S.; Decharme B.
发表日期	2020
ISSN	1027-5606
起始页码	3033
结束页码	3055
卷号	24 期号:6
英文摘要	The total water storage change (TWSC) over land is a major component of the global water cycle, with a large influence on the climate variability, sea level budget and water resource availability for human life. Its first estimates at a large scale were made available with GRACE (Gravity Recovery and Climate Experiment) observations for the 2002-2016 period, followed since 2018 by the launch of the GRACE-FO (Follow-On) mission. In this paper, using an approach based on the water mass conservation rule, we propose to merge satellite-based observations of precipitation and evapotranspiration with in situ river discharge measurements to estimate TWSC over longer time periods (typically from 1980 to 2016), compatible with climate studies. We performed this task over five major Asian basins, subject to both large climate variability and strong anthropogenic pressure for water resources and for which long-term records of in situ discharge measurements are available. Our Satellite Water Cycle (SAWC) reconstruction provides TWSC estimates very coherent in terms of seasonal and interannual variations with independent sources of information such as (1) TWSC GRACE-derived observations (over the 2002-2015 period), (2) ISBA-CTRIP (Interactions between Soil, Biosphere and Atmosphere CNRM - Centre National de Recherches Météorologiques - Total Runoff Integrating Pathways) model simulations (1980-2015) and (3) the multi-satellite inundation extent (1993-2007). This analysis shows the advantages of the use of multiple satellite-derived datasets along with in situ data to perform a hydrologically coherent reconstruction of a missing water component estimate. It provides a new critical source of information for the long-term monitoring of TWSC and to better understand its critical role in the global and terrestrial water cycle. © 2020 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	Budget control; Climate change; Digital storage; Geodetic satellites; Sea level; Water supply; Anthropogenic pressures; Discharge measurements; Gravity recovery and climate experiments; Long term monitoring; Resource availability; River discharge measurements; Satellite based observations; Seasonal and interannual variations; Water resources; annual variation; evapotranspiration; GRACE; hydrological cycle; reconstruction; river discharge; runoff; satellite altimetry; satellite data; sea level change; water mass; water storage; South Asia
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159377
作者单位	Pellet, V., Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, Observatoire de Paris, Paris, France, Estellus, Paris, France, Institute of Industrial Science, University of Tokyo, Tokyo, Japan; Aires, F., Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, Observatoire de Paris, Paris, France, Estellus, Paris, France; Papa, F., Laboratoire d'Études en Géophysique et Océanographie Spatiales, IRD, Toulouse, France; Munier, S., CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France; Decharme, B., CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France
推荐引用方式 GB/T 7714	Pellet V.,Aires F.,Papa F.,et al. Long-term total water storage change from a Satellite Water Cycle reconstruction over large southern Asian basins[J],2020,24(6).
APA	Pellet V.,Aires F.,Papa F.,Munier S.,&Decharme B..(2020).Long-term total water storage change from a Satellite Water Cycle reconstruction over large southern Asian basins.Hydrology and Earth System Sciences,24(6).
MLA	Pellet V.,et al."Long-term total water storage change from a Satellite Water Cycle reconstruction over large southern Asian basins".Hydrology and Earth System Sciences 24.6(2020).