Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2023, Vol. 20, No. 2, pp. 238-245
On the use of data from European geostationary meteorological satellites for wind field assessments in conditions of sanctions
A.F. Nerushev
1 , R.V. Ivangorodsky
1 1 Research and Production Association “Typhoon”, Obninsk, Kaluga Region, Russia
Accepted: 20.03.2023
DOI: 10.21046/2070-7401-2023-20-2-238-245
The possibilities of using measurement data from European geostationary meteorological satellites to assess wind fields in the upper troposphere with an increase in the time interval for the receipt of images in the water vapor channel with a center of 6.2 μm from 15 min. to 1 hour are considered. The influence of vertical atmospheric movements of various spatial scales, atmospheric waves and the natural evolution of water vapor inhomogeneities on the change in the characteristics of the radiating layer of the atmosphere is analyzed. It is shown that when increasing the time interval between images from 15 min. to 1 hour, these processes can induce significant errors in the calculated values of wind speed. An algorithm for correcting the calculations of wind speed in the upper troposphere with a time interval of 1 hour for the receipt of images is outlined. Errors in the correction of the calculated wind speed values are evaluated, when compared with calculations at an interval of image receipt of 15 min.
Keywords: wind field, upper troposphere, geostationary satellites, calculation errors, correction algorithms
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