| Summary: | 碩士 === 國立臺灣師範大學 === 地球科學系 === 106 === This study evaluates the performance of TRMM, CMORPH, and PERSIANN precipitation productions in representing the characteristics of diurnal precipitation (including daily mean and diurnal variation) in Taiwan at four different seasons: spring (March to May), summer (June to August), autumn (September to November) and winter (December to next February). Results show that TRMM is the best among the three for depicting both the spatial-temporal characteristics of daily mean and the diurnal variation of precipitation in Taiwan at the seasons of spring, summer and autumn. While for the winter season, none of the three satellite products can capture the observed regional difference in the timing of occurrence of maximum diurnal precipitation. Possible cause for the differences among TRMM, CMORPH and PERSIANN in depicting the characteristics of diurnal variation of precipitation in Taiwan at the seasons of spring, summer and autumn is also discussed. Analyses also show that the three satellites have larger differences in depicting the diurnal variation of precipitation in Taiwan, as compared to the differences in depicting the diurnal variation of precipitation over the nearby ocean.
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