We wish to thank Drs. C. Kummerow and D. A. Short of NASA/Goddard Space Flight Center (GSFC), Prof. K. Shimizu of Keio University, and Dr. N. Kashiwagi of the Institute of Statistical Mathematics for their valuable suggestions. Acknowledgment is also given to Mr. R. Okada, Remote Sensing Technology Center of Japan, who contributed to many of the statistical data analyses. The MIT radar data were kindly provided from the TOGA COARE project and TRMM Office, NASA/GSFC. This study was partly supported by National Space Development Agency of Japan (NASDA) under a joint research program between CRL and NASDA for the study of TRMM Precipitation Radar algorithms.
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