This study is part of a larger study, “Production of a high-precision, high-resolution global precipitation map using satellite data (GSMaP),” led by Prof. Ken’ichi Okamoto (Osaka Prefecture University, Japan) under the program Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Agency (JST). We appreciate JST’s subsidy of this study. The authors are grateful for the many helpful comments and assistance provided by members of GSMaP. The source code for GPROF was made available by Dr. Christian Kummerow (Colorado State University), and the microwave radiative transfer code was provided by Dr. Guosheng Liu (The Florida State University) through Dr. Kazumasa Aonashi (Meteorological Research Institute, Japan). Their kindness is greatly appreciated.
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