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Proceedings Paper

Turbulence and wind profiling with generalized scidar at Cerro Pachon
Author(s): Remy Avila; Jean Vernin; Mark Richard Chun; Leonardo J. Sanchez
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Paper Abstract

We present the first simultaneous monitoring of the vertical distributions of the optical turbulence strength CN2(h) and the wind velocity V(h), along the whole optical path. For that purpose, a new algorithm has been developed for the analysis of the spatio-temporal correlation of scintillation images, obtained with the Generalized Scidar (GS). The algorithm allows for dome seeing identification. The new method has being applied to the GS data collected during four one-week runs uniformly distributed during 1998, for the characterization of Cerro Pachon, the Gemini South Telescope site. Comparison of V(h) obtained with the GS and instrumented balloons, respectively, gives a great deal of confidence in the new method. The analysis of the 6900 CN2(h) and V(h) profiles obtained, leads to a statistical study of the most important parameters relevant for the development of adaptive optical systems.

Paper Details

Date Published: 7 July 2000
PDF: 12 pages
Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390317
Show Author Affiliations
Remy Avila, Univ. Nacional Autonoma de Mexico (Mexico)
Jean Vernin, Univ. de Nice/Sophia Antipolis (France)
Mark Richard Chun, Gemini Observatory (United States)
Leonardo J. Sanchez, Univ. Nacional Autonoma de Mexico (Mexico)

Published in SPIE Proceedings Vol. 4007:
Adaptive Optical Systems Technology
Peter L. Wizinowich, Editor(s)

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