We would like to acknowledge the support of the Air Force Weather Agency, which provided funding for this work. Computing resources have been provided by iMSC, Compaq, and ARA through a multiyear agreement with the Mesoscale and Microscale Meteorology Division at NCAR, and by the Scientific Computing Division at NCAR, funded by the National Science Foundation. Thanks also go to Al Bourgeois and John Michalakes of NCAR/MMM for parallelizing the global version of the model for the Compaq and IBM platforms used in this work. Two anonymous reviewers also made suggestions that helped us to improve the paper.
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