Global Oceanic Precipitation from the MSU during 1979—91 and Comparisons to Other Climatologies

摘要: Abstract Oceanic precipitation is estimated on a 2.5° grid for the period 1979–1991 from Microwave Sounding Unit (MSU) channels 1, 2, and 3 data gathered by seven separate TIROS-N satellites. Precipitation diagnosed when cloud water rainwater-induced radiometric warming of channel 1 brightness temperatures (Tb) exceeds cumulative frequency distribution threshold 15% after correction airmass temperature determined 2 measurements. After intercalibration between satellites, 13-year gridpoint field average Tb calibrated in units with five to ten years globally distributed low-elevation island coastal rain accumulation measurements 132 gauges. The calibration involves single scale factor, has dependence air that an MSU climatology. Comparisons satellite raingage annual cycle monthly are presented 75 lo...