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https://doi.org/10.17721/2308-135X.2019.47.140-148

UDC 551.578.482; 528.873

Grishchenko Mikhail Yurievich, Candidate of Geographical Sciences, Lomonosov Moscow State University, Moscow, Russia, e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Goryunov Nikolay Dmitrievich, Lomonosov Moscow State University, Moscow, Russia

Turchaninova Alla Sergeevna, Candidate of Geographical Sciences,Lomonosov Moscow State University, Moscow, Russia

AVALANCHE DEPOSITS REVEALING ON THE BEZENGI GLACIER USING SENTINEL-2 SATELLITE IMAGES

Purpose. The aim of the paper is to evaluate the interpretation properties of Sentinel-2 satellite images from the point of view of revealing avalanche deposits on glaciers.

Scientific novelty. Despite the sometimes quite high significance of avalanche deposits in the glaciers nourishment, the assessment of the Sentinel-2 satellites images applicability for solving the problem of detecting avalanche deposits on glaciers has not yet been carried out.

Methods. The paper describes the main methodological approaches of revealing by such images the boundaries of the glacier, avalanche paths and avalanche deposits. The methods of visual interpretation of images synthesized in various color renditions were used.

Results. During the work, an assessment was made of the suitability of using the Sentinel-2 images in studies of the Caucasus valley glaciers avalanche nourishment, as well as the possibilities and limitations of using these images for interpreting avalanche deposits within the glaciers were described.

The practical significance. The results will allow to more effectively evaluate the avalanche nourishment of glaciers.

Keywords: geographical images interpretation, avalanche deposits, avalanche paths, glaciers, Sentinel-2, Bezengi.

References

1. Akifyeva K.V. Methodological manual on the interpretation of aerial photographs in the study of avalanches (Metodicheskoye posobiye po deshifrirovaniyu aerofotosnimkov pri izuchenii lavin). Leningrad. Gidrometizdat. 1980. 50 p. (in Russian).

2. Vinogradov O.N., Krenke A.N., Oganovsky P.N. Guide to compiling a catalog of USSR glaciers (Rukovodstvo po sostavleniyu kataloga lednikov SSSR). Leningrad. Gidrometizdat. 1966. 154 p. (in Russian).

3. Losev K.S. The role of the avalanches in the mass glacier budget (Rol' lavin v byudzhete massy lednikov). Trudy ZakNIGMI. 1966. Vol. 20. P. 178-182 (in Russian).

4. Panov V.D. Evolution of the Caucasus modern glaciation. Saint Petersburg. Gidrometizdat. 1993. 432 p. (in Russian).

5. Eckerstorfer M., Buhler Y., Frauenfelder R., Malnes E. Remote sensing of snow avalanches: Recent advances, potential and limitations // Cold Regions Science and Technology. 2015. Vol. 121. P. 126-140.

6. Eckerstorfer M., Malnes E., Muller K. A complete snow avalanche activity record from a Norwegian forecasting region using Sentinel-1 satellite-radar data // Cold Regions Science and Technology. 2017. V. 144. P. 39-51.