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Proceedings Paper

Optical turbulence measurements at a mountain ridge
Author(s): Frank D. Eaton; Judith E. Miller; Sheldon S. Stokes; Kenneth H. Underwood
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Paper Abstract

The optical turbulence conditions at a mountain ridge (North Oscura Peak, White Sands Missile Range, NM) were determined from observations of fine wire sensors and a sodar (sonic detection and ranging). Both instruments provided the temperature structure parameter (C2T) from which the refractive index structure parameter (C2n) was calculated using local measurements of temperature and pressure. The fine wire measurements were used to calibrate the sodar. Atmospheric measurements shown include wind speed and direction, temperature, and solar radiation sensed horizontally as well as parallel to the west-facing slope. Of particular emphasis is the relationship of the sodar observations to solar radiation and wind speed and direction. The results are explained in terms of the geometry of the site and the mountain-valley wind regime. Results are shown as average range profiles of C2n sensed at various zenith angles at different times of the day and as contours of C2n in a vertical plane oriented normal to the west-facing slope.

Paper Details

Date Published: 21 July 2000
PDF: 11 pages
Proc. SPIE 4034, Laser Weapons Technology, (21 July 2000); doi: 10.1117/12.391875
Show Author Affiliations
Frank D. Eaton, Air Force Research Lab. (United States)
Judith E. Miller, Air Force Research Lab. (United States)
Sheldon S. Stokes, Air Force Research Lab. (United States)
Kenneth H. Underwood, AeroVironment, Inc. (United States)

Published in SPIE Proceedings Vol. 4034:
Laser Weapons Technology
Todd D. Steiner; Paul H. Merritt, Editor(s)

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