Methodology Investigation, Implement Remote Sensing
Final rept. for Oct 1990-Sep 1991
ARMY DUGWAY PROVING GROUND UT
Pagination or Media Count:
The Dugway Proving Ground radar wind profiler, a ground-based 404.37 MHz Doppler radar operated continuously through its FY91 evaluation period, providing 6-min and hourly wind profiles at 250 m intervals from 500 m to 10 km above ground level. Profiler performance was evaluated using a series of internal measures and through intercomparison with radiosonde-derived wind soundings. Results show profiler measurement precision comparable to that of radiosonde-derived wind data, but with greatly increased temporal resolution. Profiler spectra were examined during periods with strong wind shear, precipitation, and aircraft passage through the radar beams. These conditions caused no significant problems, although data quality was marginal or poor in strong convection or during very dry condition dew points below -35 C. A problem with antenna element degradation was discovered, and corrective action has been initiated. Automated quality control algorithms were developed for the 6-min profiler data, and formats were developed for inclusion of wind profiler data in test data reports. Shutdown procedures were also developed to eliminate profiler interference with search and rescue satellites. Radar wind profiling is a promising remote sensing technology that offers significant, advantages over existing balloon-based wind sounding methods. Once frequency allocation issues are resolved, radar wind profiling is expected to become the preferred method for obtaining ballistic wind data.
- Active and Passive Radar Detection and Equipment