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Accuracy of wind measurements using an airborne Doppler lidarSimulated wind fields and lidar data are used to evaluate two sources of airborne wind measurement error. The system is sensitive to ground speed and track angle errors, with accuracy required of the angle to within 0.2 degrees and of the speed to within 1 knot, if the recovered wind field is to be within five percent of the correct direction and 10 percent of the correct speed. It is found that errors in recovered wind speed and direction are dependent on wind direction relative to the flight path. Recovery of accurate wind fields from nonsimultaneous sampling errors requires that the lidar data be displaced to account for advection so that the intersections are defined by air parcels rather than fixed points in space.
Document ID
19860045963
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Carroll, J. J.
(California, University Davis, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1986
Publication Information
Publication: Journal of Atmospheric and Oceanic Technology
Volume: 3
ISSN: 0739-0572
Subject Category
Meteorology And Climatology
Accession Number
86A30701
Funding Number(s)
CONTRACT_GRANT: NAS8-34730
Distribution Limits
Public
Copyright
Other

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