Assessing Accuracy of TMPA and IMERG  Satellite Precipitation Products in the Three Gorges Region

WANG Han-tao; ZHANG Xiao-xiao; ZHAO Mu-chen; SHU Wei-min

doi:10.11988/ckyyb.20180725

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Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (12) : 23-27. DOI: 10.11988/ckyyb.20180725

WATER RESOURCES AND ENVIRONMENT

Assessing Accuracy of TMPA and IMERG Satellite Precipitation Products in the Three Gorges Region

WANG Han-tao¹, ZHANG Xiao-xiao^2,3, ZHAO Mu-chen¹, SHU Wei-min¹

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Abstract

In an attempt to verify the feasibility of substituting ground observation data with satellite precipitation data, the accuracies of TMPA 3B43V7 and GPM IMERG satellite precipitation products in the Three Gorges Basin were evaluated by statistical analysis based on the observation data from ground sites. The results reflected that TMPA and IMERG showed good consistency. In the upper flat area of the Three Gorges Region with low latitude, the accuracies of satellite precipitation products were poor, whereas in the alpine-gorge area in the lower reach of the Region, the latitude was higher, and the accuracies were better. Satellite precipitation products have the potential of replacing ground site precipitation data, and are applicable in the study basin.

Key words

TMPA / IMERG / satellite precipitation product / Three Gorges Region / monthly average precipitation

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WANG Han-tao, ZHANG Xiao-xiao, ZHAO Mu-chen, SHU Wei-min. Assessing Accuracy of TMPA and IMERG Satellite Precipitation Products in the Three Gorges Region[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(12): 23-27 https://doi.org/10.11988/ckyyb.20180725

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