The authors are grateful to Dr. George Isaac, Dr. Stewart Cober, Walter Strapp, and Bob Crawford of the Atmospheric Environment Service of Canada for their support in the field project and collaborating in the data analysis. We are indebted to Dr. J. A. Weinman of NASA Goddard Space Flight Center and Dr. J. L. Schols of General Sciences Corporation for supplying the analyzed SSM/I data, and to Dr. Dave Hudak of the University of Toronto for supplying the Doppler radar data. We also wish to thank Dr. David Mitchell and Dr. David Rogers for helpful discussions concerning data analysis. We are grateful to Dr. Roy Rasmussen of NCAR for reviewing the manuscript and providing helpful suggestions. This work was supported in part by the Federal Panel on Energy Research and Development (PERD) of Canada and by Grant No. ISI-8922336 to SPEC Incorporated from the National Science Foundation.
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