Feasibility analysis of TRMM RT rainfall in flood simulation

MIN Xin-yi,YANG Chuan-guo,CHENG Yu-chun,LI Ying

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China Rural Water and Hydropower ›› 2019 ›› (6) : 1-5.

Feasibility analysis of TRMM RT rainfall in flood simulation

  • MIN Xin-yi1,YANG Chuan-guo1,CHENG Yu-chun1,LI Ying2
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Abstract

The progress and extensive application of satellite technology provide the possibility to improve the accuracy and timeliness of rainfall monitoring. In this paper, using the HEC-HMS model, the TRMM RT satellite rainfall data is applied to flood simulation prediction. The results show that the real-time rainfall data of TRMM RT has the advantages of good temporal and spatial continuity, and the precipitation in general has a certain monitoring accuracy, but at present direct use of it to carry out flood simulation cannot meet the prediction accuracy requirements. In this paper, the rainfall classification correction method is used to effectively reduce the real-time satellite rainfall monitoring error and significantly improve the flood simulation accuracy. In the future, it is necessary to further improve the real-time monitoring ability of satellite rainfall, make full use of multi-source rainfall data such as site and satellite remote sensing to improve the accuracy of flood simulation prediction.

Key words

Keywords:Satellite real-time rainfall / Flood simulation / HEC-HMS model / Precipitation classification correction

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MIN Xin-yi,YANG Chuan-guo,CHENG Yu-chun,LI Ying. Feasibility analysis of TRMM RT rainfall in flood simulation. China Rural Water and Hydropower. 2019, 0(6): 1-5

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