Method for determining atmospheric motion characteristics using measurements on geostationary meteorological satellites

Autor: E. K. Kramchaninova, A. F. Nerushev
Rok vydání: 2011
Předmět:
Zdroj: Izvestiya, Atmospheric and Oceanic Physics. 47:1104-1113
ISSN: 1555-628X
0001-4338
DOI: 10.1134/s0001433811090118
Popis: The method for determining the dynamic characteristics of the atmosphere using the data of sounding from geostationary meteorological satellites developed by the authors and based on using inhomogeneities of the conservative admixture concentration field as tracers and on applying the correlation extreme algorithms is described in detail. The accuracies in calculating the horizontal wind velocity vector (V) and coefficient of horizontal mesoscale turbulent diffusion (Kd) are estimated on the basis of processing the data of sounding the atmosphere with a SEVIRI (Spinning Enhanced Visible and Infrared Imager) radiometer on the Meteosat-8 and Meteosat-9 European geostationary meteorological satellites in the water vapor channels centered at 6.2 and 7.3 μm and on comparing the results with the data of independent observations and theoretical models. It is indicated that the accuracy in calculating V using the developed method almost coincides with the accuracy of the commonly used foreign methods. In contrast to the methods applied abroad, the developed method makes it possible to determine not only the wind velocity vector field but also the coefficient of mesoscale turbulent diffusion and vorticity on one scale of air mass motion.
Databáze: OpenAIRE
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