Wingtip generated wake vortices as radar targets

Author

Marshall, Robert E. ; Myers, Theodore J.

Author_Institution

Res. Triangle Inst., Hampton, VA, USA

fYear

1996

fDate

13-16 May 1996

Firstpage

184

Lastpage

189

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 1996., Proceedings of the 1996 IEEE National

Conference_Location

Ann Arbor, MI

Print_ISBN

0-7803-3145-1

Type

conf

DOI

10.1109/NRC.1996.510678

Filename

510678