Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 3, pp. 9-17
Integration of space images of ultra high and medium resolution for the construction of size-distribution histograms of thermokarst lakes in the extended range of their sizes
Yu.M. Polishchuk
1, 2 , A.N. Bogdanov
1 , N.A. Bryksina
3 , I.N. Muratov
4 , V.Yu. Polishchuk
5, 6 1 Ugra Research Institute of Information Technologies, Khanty-Mansiysk, Russia
2 Institute of Petroleum Chemistry SB RAS, Tomsk, Russia
3 Immanuel Kant Baltic Federal University, Kaliningrad, Russia
4 Ugra Research Institute of Information Technology, Khanty-Mansiysk, Russia
5 Institute of Monitoring of Climatic and Ecological Systems SB RAS, Tomsk, Russia
6 Tomsk Polytechnic University, Tomsk, Russia
Accepted: 04.04.2018
DOI: 10.21046/2070-7401-2018-15-3-9-17
The article is devoted to the use of ultra-high resolution imagery in combination with mid-resolution imagery for constructing a histogram of the size-distribution of lakes from empirical histograms presented in a very wide range of lake areas, including small and very small lakes. Methodological issues of synthesizing two histograms for the size-distribution of lakes are considered, one of which is obtained from ultra high resolution imagery on a limited set of test sites, the other — on a mosaic of images of the middle resolution of the study area. To build the histograms, we used images of the middle resolution Landsat-8 and ultra high resolution Resource-P, QuickBird and GeoEye-1, reflecting the distributions of small and very small lakes. Remote studies using ultra high resolution imagery were carried out on 37 test sites, located evenly enough in the territory of the cryolithozone of Western Siberia. A histogram of the size-distribution of lakes by areas in a very wide range of sizes from 5 m2 to 20,000 hectares has been synthesized.
Keywords: permafrost, geoinformation systems, space images, histograms of lakes areas distribution, lognormal distribution law
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