Abstract
The Atmospheric Studies in Complex Terrain (ASCOT) field study took place during 1991 in conjunction with a model verification exercise in and around the Rocky Flats Plant (RFP) northwest of Denver, Colorado, between January 29 and February 8. As part of this exercise, Argonne (ANL) operated a portable minisodar at several locations around REP during each of the experimental nights. In addition, ANL operated ``permanent`` network minisodars with enhanced time resolution at Coal Creek and the Bartlett Ranch for the duration of the field study. Real-time data from each minisodar are identical in format, consisting of (1) vertical profiles of horizontal wind speed along the pointing directions of each of two beams tilted from the vertical by about 17 deg, (2) vertical wind speed along a vertically pointed beam, (3) the standard deviation of the components along each of these direction, (4) the signal amplitude, and (5) the number of samples within each average that were accepted as ``good.`` The data output to the ASCOT data center consists of wind speed, wind direction, vertical wind speed, standard deviation of wind speed along the three pointing directions, and the vertical beam signal amplitude in arbitrary units. Maximum heights of the minisodarsmore » were generally limited to 300 m; however, lower heights were occasionally used to increase the sampling rate or because of limited signal strength. During this field study, operational periods were on selected nights from 20000 hr until 0500 hr the following morning.« less
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