Total Rainfall CMORPH (Month)

The Climate Prediction Center morphing method (CMORPH) provides precipitation estimates obtained every thirty minutes from passive microwave satellite scans that are propagated by motion vectors derived from geostationary satellite infrared data. In addition, the shape and intensity of the precipitation features are modified (morphed) during the time between microwave sensor scans by performing a time-weighted linear interpolation. This process yields spatially and temporally complete microwave-derived precipitation analyses, independent of the infrared temperature field. CMORPH showed substantial improvements over both simple averaging of the microwave estimates and over techniques that blend microwave and infrared information but that derive estimates of precipitation from infrared data when passive microwave information is unavailable. CMORPH provides precipitation at a global scale at high spatial and temporal resolution. 60N - 60S precipitation.