Spatial-temporal evolution of meteorological and groundwater droughts and their relationship in the North China Plain

Anzhou Zhao,Kaizheng Xiang,Anbing Zhang,Xiangrui Zhang

Journal of Hydrology（2022）

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摘要

•Time-space evolution of meteorological and groundwater droughts was analyzed.•Propagation time of SPEI-1 to GDI was long in spring and winter, and short in summer.•The maximum DITI values range from 0.4 to 0.9.•Drought sensitivity and transmission rates were 38.44 and 34.17%, respectively.

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关键词

Meteorological drought,Groundwater drought,Spatial–temporal evolution,Propagation characteristics,North China Plain

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