Assessment of NCEP-CFSR Precipitation Products in Meteorological Drought Monitoring for the Citarum Basin

The availability of various satellite rainfall data potentially be used in monitoring meteorological droughts. In this study, products from the NCEP-CFSR (National Centers for Environmental Prediction Climate Forecast System Reanalysis) were analyzed to estimate meteorological drought in the Citarum Watershed, West Java, Indonesia. Assessment was carried out using NCEP-CFSR data from 1988 to 2013 and was applied to meteorological droughts using the SPI (Standardized Precipitation Index) index. The results showed that rainfall products from the NCEP-CFSR were not recommended to use in meteorological droughts because of the low correlation values of around 33, MAE (Mean Absolute Error) 17.88 and RMSE (Root Mean Square Error) 22.73. This research can be utilized as a reference to assess rainfall products from better satellite data in the future to monitor meteorological droughts.