Conditions of the alimentation and the variability of glaciers of the Severnaya Zemlya Archipelago from observations of 2014–2015

• Published in: Ice and Snow
• Main Authors: D. Bolshiyanov Yu., V. Sokolov T., I. Yozhikov S., R. Bulatov K., A. Rachkova N., G. Fedorov B., A. Paramzin S., Д. Большиянов Ю., В. Соколов Т., И. Ёжиков С., Р. Булатов К., А. Рачкова Н., Г. Федоров Б., А. Парамзин С.
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: IGRAS 2016
• Subjects: positive glacier mass balance;surge of the Vavilov Glacier; подвижка ледника Вавилова;положительный баланс ледников; Arctic; Antarctic; Severnaya Zemlya; Mushketov Glacier; Baranova; Antarc*; Arctic and Antarctic Research Institute; Ice cap; ААНИИ
• Online Access: https://ice-snow.igras.ru/jour/article/view/323; https://doi.org/10.15356/2076-6734-2016-3-358-368

Glaciological investigations on the Severnaya Zemlya archipelago were resumed in 2013 when a new research station «Ice base Cape Baranova» had been organized by Arctic and Antarctic Research Institute in the North-West of the Island Bolshevik. In 2014–2015, the glaciological polygon named after Leonid Govorukha was established on glaciers Mushketov and Semenov-Tyan-Shanskiy. Two years of observations on the glaciers allowed us to estimate the mass balance of the Mushketov Glacier, which was positive in the 2013–2015. By the end of the melting periods, a superimposed ice was formed on the glacier with thickness of 4 cm in 2014 and 17 cm in 2015, on the average. A snow-firn mass with its vertical thickness exceeding 3 m had been found on the upper part of the Semenov-Tyan-Shansky Glacier. Based on analyses of summer air temperatures and precipitation at the meteorological station «The Golomyanny Island», we assumed that in 2013–2015 the mass balance was also positive on the other glaciers of the archipelago, located to the North of the studied glaciers on the Island of Bolshevik. Data of remote sensing of the catastrophic advancing of the outlet glacier from the Vavilov Ice Cap, obtained in 2013–2016, testify that for much longer period, i.e. during 25 years, conditions for the ice mass accumulation were favorable on the southern and eastern slopes of the Vavilov Ice Cap. Гляциологические исследования ААНИИ продолжены работами 2014–2015 гг. на ледниках о. Большевик (архипелаг Северная Земля): Мушкетова высотой 560 м и Семенова-Тян-Шанского высотой 725 м. Работы на полигоне показали положительный баланс массы ледника Мушкетова, питающегося наложенным льдом, и наличие мощной (более 3 м) снежно-фирновой толщи в вершинной части ледника Семенова-Тян-Шанского. Данные метеостанции «Ледовая база «Мыс Баранова» и автоматической метеостанции на леднике Мушкетова позволили определить условия накопления льда. Катастрофическая подвижка на запад выводного ледника из ледникового купола Вавилова обусловлена более чем 25-летним ...