We would like to thank Eugene Rasmusson for motivating us to study the North American monsoon system, and for his continued encouragement and support. The dissertation of Ian Okabe provided a very useful starting point for this research. We would like to thank Dr. Maddox and one anonymous reviewer for comments that considerably improved the paper. We would also like to thank Wayne Higgins of CPC for providing the gridded HPD data, Bob Hart for providing the algorithmic basis for the CAPE computations, and Ilana Stern of UCAR for aiding in the ECMWF and NCEP data retrieval. This work is part of the doctoral research being conducted by Mathew Barlow.
This research effort was supported by the Cooperative Institute of Climate Studies at the University of Maryland at College Park. Additional support was provided by NA76GP0479, and by NOAA Grant NA46GP0194 and NSF Grant ATM931-6278 to S. Nigam, and NOAA Grant NA57WCO340 to Ernesto Berbery.
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