10.24411/1728-323X-2018-16138

Cartography

SPATIAL ANALYSIS OF THE DISTRIBUTION OF ALAS OF CENTRAL YAKUTIA APPLYING GIS TECHNOLOGIES

1. Ya. I. Torgovkin, Ph. D. (Geography), Head of Geoinformatics Group, Melnikov Permafrost Institute, Siberian Branch of the Russian Academy of Sciences (MPI SB RAS), This email address is being protected from spambots. You need JavaScript enabled to view it., Yakutsk, Russia,
2. A. A. Shestakova, Ph. D. (Geography), Researcher, Melnikov Permafrost Institute, Siberian Branch of the Russian Academy of Sciences (MPI SB RAS), This email address is being protected from spambots. You need JavaScript enabled to view it., Yakutsk, Russia,
3. A.I. Vasiliev, Junior Researcher, Melnikov Permafrost Institute, Siberian Branch of the Russian Academy of Sciences (MPI SB RAS), This email address is being protected from spambots. You need JavaScript enabled to view it., Yakutsk, Russia

A GIS project was developed in the format ArcGIS of one of the central regions of Yakutia, located in the zone of continuous distribution of permafrost. A spatial geographic analysis of alas, typical representatives of permafrost relief forms, has been carried out. The alas are 7.04 % of the total area of the Megino-Kangalassky ulus. Most of all, they are developed in the Dogdoginsky heritage and make up 48.5% of the total territory. Less than all, about 1 %, alas are found in the Chyamayykinsky heritage. Thus, alasas are most common in the northern and central part of the study area, where the ice complex is distributed. In the south of the region, in the drained sections they are completely absent. On the map of the distribution of bulgunnyakhs (large tubercles of swelling) it can be seen that most often bulgunnyahs are found in the central and northern parts of the ulus. Here are the largest bulgunnyahs, with a height of more than 10 m.

the Central Yakut Lowland, alas, ice complex, zoning, bulgunyakh, thermokarst, analysis.

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