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Spectral and Morphometric Analysis of Polygonal Wedge Structures in the Chara Basin. P. 185–194

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Section: Geosciences




Evgeniy G. Panchenko*, Yuliya V. Stanilovskaya*
*Sergeev Institute of Environmental Geoscience of the Russian Academy of Sciences (Moscow, Russian Federation)


The paper presents a technique for remote sensing of polygonal wedge structures based on space survey data within the framework of morphometric analysis, spectral analysis and typification of landscape conditions of polygonal wedge structures. For the first time, we use the quantitative estimation of spectral-morphometric characteristics of polygonal objects relative to their structural features and landscape position. This factor has a significant potential for further development and integration with geobotanical, engineering-geocryological and statistical methods. Parametrization of morphology of polygonal wedge structures is based on the calculation of principal characteristics of polygons as geometric figures, as well as conventional parameters used in the morphological analysis of polygons as forms of cryogenic relief. We compare value samples of morphological parameters by index plots in the taiga zone of the Chara basin with continuous permafrost to analyze the patterns of formation and dynamic state of polygonal structures in different landscape conditions. The authors determine 12 morphometric parameters for four index plots and calculate basic statistical values for each of them (minimum, maximum and mean values, standard deviation). Spectral and morphometric analysis allows us to quantify the diversity of polygonal wedge structures. In the future, this approach can be improved due to the landscape interpretation of the revealed quantitative features.


polygonal wedge structure, remote sensing of cryolithozone, cryogenic landscape, morphometric analysis, spatial analysis, Chara basin
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