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À propos de : Atmospheric turbulence and wind profiles monitoring with generalized scidar        

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  • Atmospheric turbulence and wind profiles monitoring with generalized scidar
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  • We present a method for simultaneous measurement of the vertical distribution of the optical turbulence strength $C_{\rm N}^2(h) $ and wind velocity ${\vec V}(h)$ in the Earth's atmosphere, based on an analysis of spatio-temporal correlations of stellar scintillation images obtained with generalized scidar. A statistical comparison of ${\vec V}(h)$ obtained with this method and instrumented balloons supports the use of this method. The algorithm used allows for the identification of dome seeing, which can be subtracted from $C_{\rm N}^2(h) $, to obtain a turbulence profile free of dome contribution. Examples of simultaneous $C_{\rm N}^2(h)$ and ${\vec V}(h)$ monitorings are presented.
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  • aa1926
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  • © ESO, 2001
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  • ESO
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