A satellite-based approach to estimating spatially distributed groundwater recharge rates in a tropical wet sedimentary region despite cloudy conditions

Luis Romero A. Barbosa,Victor Hugo R. Coelho,Ana Claudia V. L. F. Gusmao,Lucila A. E. Fernandes,Bernardo B. da Silva,Carlos de O. Galvao,Nelson O. L. Caicedo,Adriano R. da Paz,Yunqing Xuan,Guillaume F. Bertrand,Davi de C. D. Melo,Suzana M. G. L. Montenegro,Sascha E. Oswald,Cristiano das N. Almeida

Journal of Hydrology（2022）

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摘要

•A new satellite-based approach was proposed to estimate groundwater recharge rates.•Groundwater recharge was determined in a tropical wet region under cloudy condition.•Cloud-cleaning procedure enabled the production of a fair proxy for ET estimation.•Explicit representations of important root-zone water storage changes were shown.•Consistent validations showed the good performance of the satellite-based approach.

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关键词

Remote sensing,Water balance,Groundwater recharge,Water table fluctuation,Tropical climate,Sedimentary aquifer

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