28 February 2002 Investigations of a convective column above the surface forest fire
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Proceedings Volume 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; (2002) https://doi.org/10.1117/12.458437
Event: Eighth Joint International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2001, Irkutsk, Russian Federation
Abstract
In the paper the results of experimental researches of parameters of a laser beam passed through a convective column shaped above a zone of shining wood materials have been shown. Estimates of structural characteristics of temperature fluctuations C(Tau )2 and refractive index Cn2 determined from measurements of temperature gradients at the altitude 105 cm have been presented. The root-mean-square deviations of fluctuations of the image of a divergent laser beam measured are compared with ones calculated on Cn2 taking into account profile of temperature in the convective column. The spectra of fluctuations of the image and intensity of a divergent laser beam have been determined also. It is shown that the turbulent parameters in a convective column since some altitude corresponds to conditions of a free convection.
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Valentina M. Sazanovich, Valentina M. Sazanovich, Ruvim Sh. Tsvyk, Ruvim Sh. Tsvyk, } "Investigations of a convective column above the surface forest fire", Proc. SPIE 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, (28 February 2002); doi: 10.1117/12.458437; https://doi.org/10.1117/12.458437
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