INTERACTION BETWEEN EVAPOTRANSPIRATION AND METEOROLOGICAL AND HYDROLOGICAL FACTORS IN DROUGHT EVENTS: A CASE STUDY OF THE YANGTZE RIVER BASIN

被引：0

作者：

He, Kaixun ^{[1
]}

Lu, Hui ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling,Inst Global Change St, Beijing 100084, Peoples R China

来源：

IGARSS 2023 - 2023 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2023年

关键词：

evapotranspiration; drought; water balance; water storage; GRACE;

D O I：

10.1109/IGARSS52108.2023.10282450

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Drought has a significant impact on water resources and socio-economic development, with evapotranspiration being an important component. Based on total water storage changes observed by GRACE missions and precipitation data obtained by GPM missions, this study estimates monthly anomalies of evapotranspiration through water balance method. The results were verified and analyzed in the Yangtze River Basin. The analysis reveals that during summer drought events, evapotranspiration generally decreases instead of increases, and there is a mutual relationship between evapotranspiration and hydrological and meteorological factors. This study establishes a framework for analyzing ET using GRACE data and water balance methods, providing a reference for future research.

引用

页码：2835 / 2838

页数：4

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