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- W4384789260 abstract "The SM2RAIN (Soil Moisture to Rain) model has been widely used for rainfall estimation worldwide. However, due to the lack of sufficient ground observation, the SM2RAIN model driven by different passive microwave soil moisture products over the Tibetan Plateau has not been fully validated. In this paper, four widely used satellite microwave soil moisture products (including SMAP, ASCAT, SMOS, and AMSR2) were used as input data for rainfall estimation. Rainfall data from eight ground observation stations during 2016-2018 were used to evaluate the overall performance of the SM2RAIN algorithm under various soil moisture products at different time aggregation (AGGR) scales. In addition, different satellite soil moisture products were merged to evaluate whether the combined soil moisture products could improve the performance of the SM2RAIN model. Finally, the rainfall estimates with different soil moisture data were further evaluated and compared with two benchmark rainfall products (IMERG and ERA5). Results indicate that: (1) Overall, SM2RAIN-SMAP has the highest rainfall estimation accuracy, but with the time aggregation scale up to 30 days, the mean R of the four rainfall estimates could reach above 0.8 and the mean value of Kling-Gupta Efficiency (KGE) could reach above 0.8. (2) Combined satellite soil moisture products can significantly improve the rainfall estimates. The SM2RAIN model performed the best when SMAP and ASCAT soil moisture products were combined. (3) Using the SMAP product or combined soil moisture products yielded more accurate rainfall estimates than the two benchmark rainfall products (IMERG and ERA5)." @default.
- W4384789260 created "2023-07-20" @default.
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- W4384789260 date "2023-01-01" @default.
- W4384789260 modified "2023-10-01" @default.
- W4384789260 title "Influences of using different satellite soil moisture products on SM2RAIN for rainfall estimation across the Tibetan Plateau" @default.
- W4384789260 doi "https://doi.org/10.1109/jstars.2023.3296455" @default.
- W4384789260 hasPublicationYear "2023" @default.
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