Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)

Kharchenko, S.; Tsyplenkov, A.; Petrakov, D.; Golosov, V.

Авторы: Kharchenko Sergey, Tsyplenkov Anatoly, Petrakov Dmitry, Golosov Valentin
Журнал: E3S Web of Conferences
Том: 163
Год издания: 2020
Издательство: EDP Sciences
Местоположение издательства: France
DOI: 10.1051/e3sconf/202016302003
Аннотация: The restructuring of the lower reach of the Koiavgan Creekchannel (the right bank tributary of the Djankuat River) occurred on 1 July2015 after continuous rainfall with a total precipitation amount of 227 mm.This led to the breakthrough of the Djankuat Glacier lateral moraine. Thelower reach of the creek channel was initially formed at the junction of thebedrock slopes and lateral moraine and descended sharply at the end of themoraine to a wide glacial valley of the Djankuat River. The part of thechannel from the end of the moraine line to the creek’s outlet in the bottomof the glacial valley had a height difference of 125 m at a distance of about250 m. The active landslide has been recorded in the place of futurebreakthrough based on interpretation of 2014 summer satellite image. Thelinear erosion began to form on the wall of the disruption. Thermokarstprocesses probably also contributed to this breakthrough. The total volumeof sediment eroded during the breakthrough and for four years after ism3.156 500The breakthrough has formed the largest sediment cone 300meters wide and more than 200 m long in the bottom of the Djankuat Rivervalley.
Добавил в систему: Голосов Валентин Николаевич

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Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)статья

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