Atmospheric Analysis of Dust Storms in Central Asia Region using remote sensing

Authors

Department of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran

Abstract

The Aral Sea basin in Central Asia has been identified as one of the active sources of dust in Asia. In this paper, the atmospheric analysis of 6 severe dust storms on dust sources in the Central Asian region and the Aral Sea basin over the past two decades is examined. For synoptic analysis of NCEP-NCAR data including wind speed on the ground and velocity and height of geopotential at 850 hPa and to identify dusting days, dust masses and estimating dust load, from the optical depth data of air vents in the mood sensor. Was used. Based on the results of atmospheric analysis, two flow patterns have been identified for regional storms that generate severe storms on dust sources in the Aral Sea basin and desert areas of Central Asia. The Aral Sea, western Uzbekistan, the eastern shores of the Caspian Sea in Kazakhstan and Turkmenistan, western and central Turkmenistan, and the northern and northeastern border regions of Iran are most affected by dust events. A study of the affected areas caused by dust masses shows that the dry Aral Sea, western Uzbekistan and western Turkmenistan have the highest AOD and dust load. According to studies, the most intense dust activities in Central Asia occurred in spring and summer, in the months of April, May, June, July and August, and according to the results, the maximum amount of dust in the region in some cases more than Reaches from 7 grams per square meter.

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Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 12 February 2022

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