This research was funded by NSF Grants ATM-9319345 and ATM-9700626 and NASA Grant NAG 5-2589. The PAM network was provided by the Atmospheric Technology Division of NCAR, which is sponsored by the National Science Foundation (NSF). PAM received partial support from the National Aeronautics and Space Administration and from the NSF through Grant ATM-9019821 to the University of Oklahoma, We are grateful to Edward Brandes for providing the NSSL Doppler radar imagery and the Amber radiometer data, and to Don Burgess for facilitating access to imagery from the National Weather Service WSR-88D Doppler radar. Robert Zamora installed the Amber UHF profiler and provided assistance in the interpretation and use of this data.
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