Evaluation of a technique to quantify microburst windshear hazard potential to aircraftA wind shear hazard index, known as the F-factor, is investigated for application with look-ahead sensors. Based on data from microburst simulations with the NASA windshear model, the downdraft results in a significant contribution to the wind shear hazard, especially at altitudes above 150 meters. Since most look-ahead wind shear sensors can only detect horizontal shear and cannot measure vertical velocity, a relationship is developed for approximating the total F-factor using information based solely on the horizontal wind shear and altitude. This relationship is then tested using data from several microburst cases.
Document ID
19920028755
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Byrd, G. P. (Brockport, State University College, NY, United States)
Proctor, F. H. (Meso, Inc. Hampton, VA, United States)
Bowles, R. L. (NASA Langley Research Center Hampton, VA, United States)