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Proceedings Paper

Estimating mountain wave windspeeds from sailplane flight data
Author(s): Rick P. Millane; Richard G. Brown; Einar Enevoldson; James E. Murray
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Paper Abstract

Airflow over mountainous terrain can produce atmospheric waves in the lee of the mountains that have large vertical air velocities. These waves are used as sources of lift by sailplane pilots. Methods are developed for inverting flight data of airspeed and GPS-derived position to obtain estimates of the vector windspeed in mountain waves. Data from flight path segments with significantly different ground velocities within a region of constant windspeed give a well-determined solution for the windspeed. The methods are applied to flight data from a Perlan Project flight in lee waves of the Sierra Nevada Mountains in California.

Paper Details

Date Published: 22 October 2004
PDF: 12 pages
Proc. SPIE 5562, Image Reconstruction from Incomplete Data III, (22 October 2004); doi: 10.1117/12.562784
Show Author Affiliations
Rick P. Millane, Univ. of Canterbury (New Zealand)
Richard G. Brown, Univ. of Canterbury (New Zealand)
Einar Enevoldson, NASA Dryden Flight Research Ctr. (United States)
James E. Murray, NASA Dryden Flight Research Ctr. (United States)

Published in SPIE Proceedings Vol. 5562:
Image Reconstruction from Incomplete Data III
Philip J. Bones; Michael A. Fiddy; Rick P. Millane, Editor(s)

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