This project was funded by the U.S. National Science Foundation under Grant ATM-9001269. We thank Drs. William Sauck, Brian Goodman, and Barry Hinton for their help with data processing, computer programming, and statistical analysis. We also thank Mr. Verissimo Assis from 1o Distrito de Meteorologia (DISME) for his technical assistance with the Manaus rain gauges. Comments from reviewers substantially improved the manuscript.
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