We thank all the participants in the 1998 field experiment for their effort, especially the staff of the NCAR Research Applications Program and of the University of North Dakota. We thank A. Rodi of the University of Wyoming for additional aircraft data processing. We also thank J. Stone for helping with the data processing. This research was in response to requirements and funding by the Federal Aviation Administration (FAA). The views expressed are those of the authors and do not necessarily represent the official policy or position of the FAA.
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