globalchange  > 气候变化与战略
DOI: 10.13203/j.whugis20170402
论文题名:
Evaluation of the Evapotranspiration in the West Liaohe River Basin Based on GRACE Satellite and in Situ Measurements [联合GRACE重力卫星与实测资料估计西辽河流域蒸散发量]
作者: Zhong Y.; Zhong M.; Feng W.; Yan H.; Li C.
刊名: Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University
ISSN: 16718860
出版年: 2020
卷: 45, 期:2
语种: 英语
英文关键词: Drought ; Evapotranspiration ; GRACE ; The West Liaohe River Basin ; Water balance equation
Scopus关键词: Climate change ; Drought ; Evapotranspiration ; Groundwater ; Remote sensing ; Rivers ; Watersheds ; Actual evapotranspiration ; GRACE ; Gravity recovery and climate experiment satellites ; Groundwater depletion ; Land data assimilation systems ; Mean annual precipitation ; River basins ; Water balance equation ; Geodetic satellites
英文摘要: The West Liaohe River Basin (WLRB) is one of the most sensitive areas to climate change in China. Here we use the terrestrial water fluxes derived from the Gravity Recovery and Climate Experiment (GRACE) satellites, precipitation dataset, and in situ runoff records, to calculate the actual evapotranspiration (ET) in the WLRB based on the water balance equation. We find that during the drought period of 2005-2011, the mean annual ET is 350.5 mm, which is 9.8 mm more than the mean annual precipitation during the same time period. This difference can be explained by the groundwater depletion in the WLRB (about 6.8 mm/a). We also find that the ET products from remote sensing both underestimate the actual ET in the WLRB, compared with the GRACE-based ET results. However, the ET simulated by the global land data assimilation system version 2.1 (GLDAS-2.1) Noah is overestimated. This paper highlights the capability of GRACE to monitor actual ET in the WLRB and to validate different ET products from remote sensing and models. © 2020, Research and Development Office of Wuhan University. All right reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159363
Appears in Collections:气候变化与战略

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作者单位: School of Geography and Information Engineering, China University of Geosciences (Wuhan), Wuhan, 430074, China; State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, 430077, China; University of Chinese Academy of Sciences, Beijing, 100049, China; China Water Northeastern Investigation, Design and Research Co. Ltd, Changchun, 130061, China

Recommended Citation:
Zhong Y.,Zhong M.,Feng W.,等. Evaluation of the Evapotranspiration in the West Liaohe River Basin Based on GRACE Satellite and in Situ Measurements [联合GRACE重力卫星与实测资料估计西辽河流域蒸散发量][J]. Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University,2020-01-01,45(2)
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