18th Conference on Weather and Forecasting, 14th Conference on Numerical Weather Prediction, and Ninth Conference on Mesoscale Processes

Wednesday, 1 August 2001
Use of Lower Atmospheric Profilers and Automated Surface Measurements to Investigate Mesoscale Structure and Predictability
E. G. Astling, West Desert Test Center, Dugway, UT
Poster PDF (129.1 kB)
A special field program was carried out to investigate mesoscale structure of the lower atmosphere in a desert region with complex terrain. Measurements from an array of three 924-MHz lower atmospheric profilers were collected over a two-month period of study in June and July 2000. Horizontal winds derived from the profilers and automated surface measurement were quality controlled and used in kinematic analyses. Divergence and vertical motions were calculated for day and night flow regimes. The results were used in validation studies with the Penn State/NCAR Mesoscale Model Version 5 to investigate mesoscale predictability.

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