Study of fields of small thermokarst lakes in the continuous permafrost of Western Siberia by high resolution satellite images
Y.M. Polishchuk1,2, I.N. Muratov2, V.Y. Polischuk3,4
1Institute of Petroleum Chemistry of the Siberian Branch of the RAS, 3, Academichesky ave., Tomsk, 634021, Russia
2Ugra Scientific-Research Institute of Information Technologies, 151, Mira, Hanty-Mansijsk, 628011, Russia
3Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, 634055, Tomsk, 10/3, Academichesky ave
4National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, 634050, Russia
Keywords: вечная мерзлота, космические снимки, малые термокарстовые озера, Западная Сибирь, permafrost, space images, small thermokarst lakes, Western Siberia
Abstract
The results of the remote study of small thermokarst lakes using satellite images of BKA and Alos received during summer months 2008-2014 are presented. Researches were carried out at 16 test sites in the continuous permafrost of Western Siberia. At each test site, the number of lakes, their sizes, density of lakes, limnicity of territory were determined and histograms of size distribution of lakes were built. It is shown that empirical size distribution of lakes corresponds to a power law.
|
