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Proceedings Paper

CO2 Doppler lidar measurement of wind velocity and relative backscatter associated with the nocturnal boundary layer
Author(s): John R. Roadcap; Patrick J. McNicholl; Mitchell H. Laird; Robert A. Swirbalus
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Paper Abstract

Heterodyne CO2 Doppler lidar measurements of horizontal wind velocity from the surface to 11,000 feet AGL using the Velocity Azimuth Display (VAD) method were made at Holloman AFB, NM from the end of July through mid-August 1998. These data were entered real-time into the space maneuver vehicle descent analysis program to make flight performance predictions needed for test decisions. Daily measurements encompassed the early morning time period associated with the stably-stratified nocturnal boundary layer (NBL). Measurement periods were characterized by growth the decay of wind maxima or jets at different altitudes. Strong vertical shears were often observed in conjunction with these wind maxima. Relative backscatter profiles at the lowest altitudes exhibited periodic oscillations on most mornings. Relative backscatter profiles at the lowest altitudes exhibited periodic oscillations on most mornings. The observed NBL wind profiles were poorly represented by the Ekman model.

Paper Details

Date Published: 3 August 1999
PDF: 9 pages
Proc. SPIE 3706, Airborne Laser Advanced Technology II, (3 August 1999); doi: 10.1117/12.356971
Show Author Affiliations
John R. Roadcap, Air Force Research Lab. (United States)
Patrick J. McNicholl, Visidyne, Inc. (United States)
Mitchell H. Laird, Air Force Research Lab. (United States)
Robert A. Swirbalus, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 3706:
Airborne Laser Advanced Technology II
Todd D. Steiner; Paul H. Merritt, Editor(s)

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