Investigations of a convective column above the surface forest fire

Valentina M. Sazanovich; Ruvim Sh. Tsvyk

doi:10.1117/12.458437

28 February 2002 Investigations of a convective column above the surface forest fire

Valentina M. Sazanovich, Ruvim Sh. Tsvyk

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 C_n² 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 C_n² 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.

Citation Download Citation

Valentina M. Sazanovich and 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); https://doi.org/10.1117/12.458437

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