Abstract
Validation of geophysical parameters retrieved through iteration method by using the data of Special Sensor Microwave/Imager (SSM/I) was made with the truth data, such as total water vapor content and rain amount measured at the weather station of Chichijima island in Japan. We compared wind speed derived from SSM/I data with that observed by ocean buoys of Japan and U.S. The characteristics of the current and planned microwave radiometers are discussed, including Microwave Scanning Radiometer (MSR), Advanced MSR (AMSR), SSM/I, and SSM/IS. To measure sea surface temperature, requirement for calibration on AMSR is also discussed.
