GPR AND REMOTE MONITORING OF GLACIERS OF THE RIDGE MUNKU-SARDYK (THE EAST SAYAN)

http://doi.org/10.24057/2414-9179-2018-2-24-206-215

View or download the article (Rus)

About the Authors

Aleksandr D. Kitov

V.B. Sochava Institute of Geography SB RAS,
Ulan-Batorskay str., 1, 664033, Irkutsk, Russia
E-mail: kitov@irigs.irk.ru

Andrey S. Gladkov

Institute of the Earth’s crust SB RAS,
Lermontova str., 128, 664033, Irkutsk, Russia,
E-mail: gladkov@crust.irk.ru

Oxana V. Lunina

Institute of the Earth’s crust SB RAS,
Lermontova str., 128, 664033, Irkutsk, Russia,
E-mail: lounina@crust.irk.ru

Viktor M. Plyusnin

V.B. Sochava Institute of Geography SB RAS,
Ulan-Batorskay str., 1, 664033, Irkutsk, Russia
E-mail: egoryo@bk.ru

Egor N. Ivanov

V.B. Sochava Institute of Geography SB RAS,
Ulan-Batorskay str., 1, 664033, Irkutsk, Russia
E-mail: plyusnin@irigs.irk.ru

Evgeniy V. Serebrykov

Institute of the Earth’s crust SB RAS,
Lermontova str., 128, 664033, Irkutsk, Russia,
E-mail: serebryakov.e.v@mail.ru

Andrey M. Afon’kin

Institute of the Earth’s crust SB RAS,
Lermontova str., 128, 664033, Irkutsk, Russia,
E-mail: andrei.afonkin@mail.ru

Abstract

For more than a decade monitoring of the nival-glacial formations of the Munku-Sardyk ridge (Eastern Sayan) has been conducted. As a result of these studies, not only glaciers, but also stone glaciers and icings, of this territory were inventoried. As a result of application of the most effective and safe remote means for research of dangerous and hard-to-reach objects it was succeeded to trace dynamics of change of glaciers, and also to define a mode of formation of ice. According to remote sensing data of the identified geometric (surface) change of nival-glacial formations. For 115 years, Peretolchina glacier decreased from 0.8 to 0.3 km². It was determined the dismemberment of the glacier and an intensive booking of bottom tongue surface moraines. Another remote method, a radar study using the GPR Oko-2, made it possible to determine that the ice volume of this glacier decreased by 3.7 times, from 0.026 to 0.007 km³. More accurate the GPR survey allowed to determine that the greatest thickness of the main ice body is 40 m. Given an estimate of the thickness of the glacier by S.P. Peretolchin in 1908—85 m, the thickness of the ice body has been cut in half. The second largest Radde glacier decreased from 0.3 to 0.18 km². In addition, it was divided into two parts. One main glacier flows down from the Eskadrilia top, that accumulates on the Rigel and it turns North. The second glacier is severely degraded. He early represented an additional area of nutrition. Now rests on this Rigel with the formation of a small glacial lake. Booking the bottom of the glacier also becomes more intense every year.

Keywords

The Eastern Siberia, Munku-Sardyk ridge, nival-glacial formations, glacier, stone glacier, icing, radar-tracking researches, remote sensing researches of the Earth.

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For citation: Kitov A.D., Gladkov A.S., Lunina O.V., Plyusnin V.M., Ivanov E.N., Serebrykov E.V., Afon’kin A.M. GPR AND REMOTE MONITORING OF GLACIERS OF THE RIDGE MUNKU-SARDYK (THE EAST SAYAN) Proceedings of the International conference “InterCarto. InterGIS”. 2018;24(2):206–215 http://doi.org/10.24057/2414-9179-2018-2-24-206-215