Title :
Wingtip generated wake vortices as radar targets
Author :
Marshall, Robert E. ; Myers, Theodore J.
Author_Institution :
Res. Triangle Inst., Hampton, VA, USA
Abstract :
Previous radar wake vortex detection experiments have resulted in measured beam averaged values of radar reflectivity from wake vortices in clear air. We have employed average wind and thermodynamic variable output from a two dimensional wake vortex model in clear air and fog to predict radar reflectivity in a wake vortex on a one meter grid. The results agree well with data in the literature. In the clear air case, scales of turbulence were analyzed at each grid point to determine the appropriate maximum radar frequency for detection. Initial wake structure, transport, and vortex persistence are related to atmospheric winds, atmospheric stability, and generating aircraft characteristics
Keywords :
aircraft; atmospheric turbulence; electromagnetic wave scattering; radar cross-sections; radar detection; vortices; wakes; wind; atmospheric stability; clear air; fog; radar frequency; radar reflectivity; radar targets; radar wake vortex detection; thermodynamic variable output; turbulence; two dimensional wake vortex model; wind; wingtip generated wake vortices; Aircraft; Character generation; Frequency; Predictive models; Radar detection; Radar measurements; Reflectivity; Stability; Thermodynamics; Wind forecasting;
Conference_Titel :
Radar Conference, 1996., Proceedings of the 1996 IEEE National
Conference_Location :
Ann Arbor, MI
Print_ISBN :
0-7803-3145-1
DOI :
10.1109/NRC.1996.510678
