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Determination of characteristics of atmospheric motions from satellite multiwave remote sensing data

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Abstract

A method of determination of atmospheric dynamic characteristics from the data of remote sensing from a geostationary satellite is described. The method is based on the use of inhomogeneities in the concentration field of a conservative additive as tracers and on the application of correlation-extreme algorithms. Unlike the common methods used abroad, this method is able to determine not only the vector field of wind velocity but also the coefficient of turbulent diffusion and vorticity. Results of computations of the fields of the horizontal component of wind velocity and the effective coefficient of horizontal mesoscale turbulent diffusion from the Meteosat-8 SEVIRI water-vapor channel data are presented. It is shown that the average values of the effective coefficient of mesoscale horizontal turbulent diffusion in the areas with a predominantly turbulized air-mass motion are 1.5 times greater than in the areas where a laminar motion dominates. Specific features of the calculated values of the upper-troposphere dynamic characteristics in different stages of the North Atlantic TC Helene (September 2006) are analyzed.

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Correspondence to A. F. Nerushev.

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Original Russian Text © A.F. Nerushev, E.K. Kramchaninova, V.I. Solov’ev, 2007, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2007, Vol. 43, No. 4, pp. 482–491.

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Nerushev, A.F., Kramchaninova, E.K. & Solov’ev, V.I. Determination of characteristics of atmospheric motions from satellite multiwave remote sensing data. Izv. Atmos. Ocean. Phys. 43, 442–450 (2007). https://doi.org/10.1134/S0001433807040068

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  • DOI: https://doi.org/10.1134/S0001433807040068

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