High temporal resolution velocity estimates from a wind profiler
Explore the source record for details and available documents.
Wilfong, Timothy L.↗
Engineering topics
Creasey, Robert L.
Publications and source records attributed to Creasey, Robert L..
Wind persistence from 2-18 km using a wind profiler
Existing techniques for quantifying the effects of temporal wind variability on launch vehicles employ very limited sets of wind profile pairs derived from rising balloons. Variability due to spatial differences between the drifting balloon and a vehicle trajectory are traditionally ignored. The authors developed a technique to extract high quality wind profiles at frequent time intervals from a Doppler Radar Wind Profiler. This technique was applied to a limited number of data sets gathered from December 1990 through March 1992 at the Kennedy Space Center using the NASA 50 Mhz Wind Profiler. The authors then used these derived wind profiles to demonstrate techniques for quantifying the effects of temporal and spatial variability.
Wilfong, Timothy L.↗
High temporal resolution velocity estimates from the NASA 50 MHz wind profiler
A three-point medium filter for wind profiling radar has been found which, when applied to successive spectral data, effectively eliminates most spurious echoes from the data while improving SNRs. When combined with velocity calculations using a first guess, the result is a robust system that can extract high-quality wind profiles at three-minute intervals. The velocity computation methodology is described and its performance is illustrated using two sample data sets taken during very different synoptic regimes. Operational considerations are discussed.
Wilfong, Timothy L.↗