We wish to acknowledge Bob Cahalan and Ezra Takara for their early encouragement in this effort. We greatly appreciate constructive suggestions from Steve Krueger and an anonymous reviewer. This research was supported by the Office of Science (BER), U.S. Department of Energy, Grant DE-FG02-05ER64062, as part of the Atmospheric Radiation Measurement Program; by ONR grants N00014-05-1-0550 and N00014-03-1-0304; and by NOAA/Office of Oceanic and Atmospheric Research under NOAA–University of Oklahoma Cooperative Agreement NA17RJ1227, U.S. Department of Commerce. Some of the computing for this project was performed at the OU Supercomputing Center for Education and Research (OSCER) at the University of Oklahoma.
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