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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, 2012, Vol. 9, No. 1, pp. 313-319

Comparative analysis of thermokarst dynamics in permafrost territory of Western Siberia and Gorny Altai on the basis of space images

D.S. Sharonov 1, N.A. Bryksina 2, V.Y. Polishchuk 3, Y.M. Polishchuk 4
1 Ugra Starte University, 16 Chekhova Str., Khanty-Mansijsk, 628012, Russia
2 Ugra Research Institute of Information Technologies (URIIT), 151 Mira Str., Khanty-Mansyisk, 628011, Russia
3 Institute of monitoring of climatic and ecological systems, Siberian Branch of RAS, 10/3 Academichesky Ave., Tomsk, 634021, Russia
4 Ugra Starte University Institute of Petroleum Chemistry Siberian Branch of RAS, 16 Chekhova Str., Khanty-Mansijsk, 628012, Russia 4 Academichesky Ave., Tomsk, 634021, Russia
Comparative analysis of remote sensing studies of thermokarst lakes areas in the permafrost in theAltai mountain valleys and in the north of Western Siberia in the period 1973-2010 yrs permit to reveal multidirectional trends of thermokarst lakes areas in the study territories. It is shown that tendency of reducing in time for the average area of thermokarst lakes prevails in the north of Western Siberia and increasing their area on average are revealed in the mountains. The analysis of the spatial variability of the shape of thermokarst lakes shorelines showed that the shape of these lines in the study territories is significantly differs from the circle. The degree of spatial variability is approximately equal for the two territories and is not practically time dependent.
Keywords: permafrost, thermokarst lakes, mountain swamps, space images, global warming
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