Limited validations for the results include comparisons of 1) the PERSIANN - derived diurnal cycle of rainfall at Rondonia, Brazil, with that derived from the Tropical Ocean Global Atmosphere Coupled Oceanï ¿ 1/2 Atmosphere Response Experiment (TOGA COARE)
radar data; 2) the PERSIANN diurnal cycle of rainfall over the western Pacific Ocean with that derived from the
data of the optical rain gauges mounted on the TOGA - moored buoys; and 3) the monthly accumulations of rainfall samples from the
orbital TMI and PR surface rainfall with the accumulations of concurrent PERSIANN estimates.