Thermokarst Lakes of Taiga and Tundra Zones of the Siberian Arctic Based on Kanopus-V and Sentinel-2 Images
- Autores: Muratov I.N.1, Polishchuk Y.M.1
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Afiliações:
- Ugra Research Institute of Information Technologies
- Edição: Nº 6 (2024)
- Páginas: 52-63
- Seção: ИСПОЛЬЗОВАНИЕ КОСМИЧЕСКОЙ ИНФОРМАЦИИ О ЗЕМЛЕ
- URL: https://journal-vniispk.ru/0205-9614/article/view/281602
- DOI: https://doi.org/10.31857/S0205961424060047
- EDN: https://elibrary.ru/RQSSHY
- ID: 281602
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Resumo
The patterns of size distribution of thermokarst lakes in the tundra and taiga Arctic zones of northeastern Siberia were studied based on space images from the Kanopus-V and Sentinel-2 satellites (with spatial resolution of 2.1 and 20 m, respectively) acquired in the summer months of 2017–2021. Lakes were interpreted on a mosaic of Sentinel-2 satellite images and on 16 test plots on Kanopus-V images in order to determine the number of lakes and their areas within each of the specified zones. Experimental histograms of distribution of the number and total areas of lakes by their sizes were obtained for the studied tundra and taiga zones in an extremely wide range of lake sizes from 50 to 108 m2 based on the integration of data from images of different spatial resolution. The histograms of the distribution of the number of lakes by their sizes demonstrate a similar behavior in both zones, manifested in the growth of the number of lakes as their sizes decrease. It is shown that the main contribution to the total area of lakes is made by large lakes (more than 200,000 m2), the share of which exceeds 80% of the total area of lakes (in the tundra 82%, in the taiga zone 85%). The contribution of small lakes (less than 500 m2) to the total area of Arctic lakes in both tundra and taiga zones is negligible and does not exceed 0.20–0.17%, respectively. The characteristics of lake density and the degree of lake coverage of the studied territories were studied. It is shown that the lake coverage and density in the tundra is 2 and 2.5 times higher than in the taiga zone.
Texto integral

Sobre autores
I. Muratov
Ugra Research Institute of Information Technologies
Email: yupolishchuk@gmail.com
Rússia, Khanty-Mansiysk
Yu. Polishchuk
Ugra Research Institute of Information Technologies
Autor responsável pela correspondência
Email: yupolishchuk@gmail.com
Rússia, Khanty-Mansiysk
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