Rainfall estimation using TRMM satellite data

Precipitation is an important environmental parameter which affects the hydrology of the land surface, coastal processes, climate and global heat circulation. Understanding of rainfall distribution and its intensity can improve protection of the environment and knowledge of geophysical process of land, ocean and atmosphere. The use of satellite-derived products to estimate precipitation over land is important for monitoring the spatial and temporal distributions of precipitation. In this study the development in both surface and spaceborne methods and algorithms for the improved use of radar and satellite data to measure rainfall are studied and analysed. In an effort to study the best possible quality of satellite and radar rain estimates, several products have to be selected and developed from calibrated radar and satellite data. These products are processed to get information on areal distribution of reflectivity, rain existence and analysis. Using measurements from disdrometer, ground-based radar and raingauges, raindrop size distribution will be studied and used in analysing TRMM satellite rain retrieval