Abstract

Hydrological analysis in an area requires rainfall data. The problem is that the availability of rainfall data is very limited due to the lack of rainfall measuring stations in an area. One solution to overcome this problem is by utilizing daily rainfall products from the Tropical Rainfall Measuring Mission (TRMM 3842) satellite. To support the use of these products in an area, it is necessary to test the accuracy of the data to determine the characteristics of the resulting error. The purpose of this study is to evaluate and validate TRMM satellite-based precipitation products using the extreme rainfall data measured in the field at two rainfall stations of the Kendari Meteorological, Climatological, and Geophysics Agency. Data validation for satellite-based precipitation products TRMM was performed using the coefficient of determination (R2) and Root Mean Square Error (RMSE). The results of this study indicate that the TRMM satellite-based precipitation products have good accuracy and can be used to estimate rainfall in areas not covered by ground gauged stations.

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