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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 1, pp. 205-215

Determination of turbulence zones in the upper troposphere based on satellite measurements

A.F. Nerushev 1 , R.V. Ivangorodsky 1 
1 Research and Production Association «Typhoon», Obninsk, Russia
Accepted: 22.01.2019
DOI: 10.21046/2070-7401-2019-16-1-205-215
The paper presents the method of determining the turbulence zones in the upper troposphere that is based on measurements of atmospheric self-radiation from geostationary meteorological satellites and uses extremal correlation algorithms. The features of the method applied to the determination of clear air turbulence (CAT) from the SEVIRI radiometer water vapor 6.2 µm channel measurements of European geostationary meteorological satellites of the second generation are considered. The results of the calculations of average monthly space turbulence zones with different values of the coefficient of horizontal mesoscale turbulent diffusion for 2007–2017 in the satellite view zone are presented. It is shown, that for the past 11 years there has been a significant increase in the area of zones occupied by relatively weak and moderate turbulence and a slight decrease in the area of zones with strong and very strong turbulence. A close relationship was revealed between the interannual variability of the monthly area means of turbulence zones and the corresponding variability of the characteristics of jet streams.
Keywords: clear air turbulence, characteristics of turbulence zones, geostationary meteorological satellites, upper troposphere, atmospheric tracers, extremal correlation algorithms
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