ASSESSMENT OF THE RATES OF DUST PRODUCTION BY SAND DUNES IN TUKULAN KYZYL-SYR, CENTRAL YAKUTIA
The article presents a comparative analysis and discussion of the results of the calculation of mineral dust blowing from the active surfaces of the Kyzyl-Syr tukulan. Numerical modeling and mapping of dust transportation patterns provided the conclusion that total amount of dust produced by different parts of the tukulan depend on the areas occupied by vegetation-devoid dry surfaces. Dust precipitation depends on wind velocities and wind direction. South- and southeastwards winds are most active in terms of transportation distance and area of dust precipitation. Results of mathematical modeling need verification by field observation data.