Estimation of adaptive optics parameters from wind speed: results for the Teide Observatory

B. García-Lorenzo; A. Eff-Darwich; J. J. Fuensalida; J. A. Castro-Almazán

doi:10.1117/12.830390

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1 October 2009 Estimation of adaptive optics parameters from wind speed: results for the Teide Observatory

B. García-Lorenzo, A. Eff-Darwich, J. J. Fuensalida, J. A. Castro-Almazán

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Proceedings Volume 7476, Optics in Atmospheric Propagation and Adaptive Systems XII; 74760F (2009) https://doi.org/10.1117/12.830390
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

The development of adaptive optics systems for projects related to large telescopes demands a proper knowledge of the atmospheric turbulence. Due to the lack of long-term information on optical turbulence, high-altitude winds (in particular winds at the 200-mbar pressure level) were adopted as a parameter for estimating the total turbulence at a particular site, since there are large wind databases spanning for several decades. On-site measurements of C_N²(h) profiles (more than 20200 turbulence profiles) from G-SCIDAR observations and wind vertical profiles from balloons have been used tocalculate the seeing, the isoplanatic angle and the coherence time for the Teide Observatory (Canary Islands, Spain). The connection of these parameters to wind speeds at ground and 200-mbar pressure level have been studied and discussed.

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B. García-Lorenzo, A. Eff-Darwich, J. J. Fuensalida, and J. A. Castro-Almazán "Estimation of adaptive optics parameters from wind speed: results for the Teide Observatory", Proc. SPIE 7476, Optics in Atmospheric Propagation and Adaptive Systems XII, 74760F (1 October 2009); https://doi.org/10.1117/12.830390

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