Applicability of TRMM Satellite Precipitation Data in the Luanhe River Basin
Based on the measured precipitation data of 8 rainfall stations in the Luanhe River Basin from 2003 to 2019,the applicability of TRMM satellite precipitation data in the Luanhe River Basin was evaluated.The results showed that the TRMM precipitation and the measured data had the same annual,temporal and spatial distribution characteristics.On the annual,seasonal and monthly time scales,TRMM precipitation had high accuracy and were generally higher than the measured value,and there was an underestimation in July.The precipitation accuracy was higher in summer and autumn,and slightly worse in winter.The accuracy was higher from July to October,and worse from December to February of the following year.As to the spatial distribution,the accuracy of TRMM precipitation increased with the decrease of altitude.It was overestimated in the upper and middle reaches of the basin,and slightly underestimated in the coastal areas.There were underestimation phenomena at Laoting Station and Qinhuangdao Station.
TRMMprecipitationaccuracy evaluationLuanhe River Basin
国家科技期刊平台
NSTL
万方数据
