This research was supported in part by U.S. Department of Energy Grant DE-FG02-92ER6147 and U.S. National Science Foundation Grant ATM-9123552. Additional support was provided by the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, Project No. 3153, supported by Hatch Act and State of Iowa funds. Data wereobtained from the STORM-FEST World Wide Web site, http://www.ofps.ucar.edu/data/fest/docs/sounding_comp. We thank Steve Williams at UCAR’s Office of Field Project Support and Charles Wade of NCAR for answering our questions about rawinsonde humidity measurements.
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