Glaciological and geophysical investigations aimed at organization of a new airfield at the Station Mirny (East Antarctica)

Main results of glaciological and geophysical engineering surveys, conducted during three summer field seasons of 2013– 2016 (59–61st Russian Antarctic Expeditions – RAE) near the Russian Station Mirny (East Antarctica), are discussed in the paper. Objective of these works was to site and then to or...

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Bibliographic Details
Published in:Ice and Snow
Main Authors: S. Popov V., S. Mezhonov V., S. Polyakov P., V. Mart'yanov L., V. Lukin V., С. Попов В., С. Межонов В., С. Поляков П., В. Мартьянов Л., В. Лукин В.
Other Authors: экипаж борта RA-31021 вертолёта КА-32 под командованием В.В. Щербинина (ЗАО «Авиалифт Владивосток»), сотрудники РАЭ: С.В. Вольф, Е.Г. Грузинов, С.В. Кашин, А.И. Куцуруба, Е.В. Медведев, Ю.И. Нездеров, А.Л. Новиков, Д.П. Овечкин и С.С. Пряхин, начальник станции Мирный В.М. Виноградов
Format: Article in Journal/Newspaper
Language:Russian
Published: IGRAS 2016
Subjects:
airfield;crevasse detection;East Antarctica;GPR profiling;Station Mirny
Восточная Антарктида;выявление трещин;георадарное профилирование;лётное поле;станция Мирный
Antarctic
East Antarctica
The Landing
Rae
Mirny
Antarc*
Antarctica
ice core
Антарктида
Online Access:https://ice-snow.igras.ru/jour/article/view/328
https://doi.org/10.15356/2076-6734-2016-3-413-426
Description
Summary:Main results of glaciological and geophysical engineering surveys, conducted during three summer field seasons of 2013– 2016 (59–61st Russian Antarctic Expeditions – RAE) near the Russian Station Mirny (East Antarctica), are discussed in the paper. Objective of these works was to site and then to organize a new airfield for landing of medium-range aircrafts with ski landing gears. Investigations included aerial photography, GPR surveys (georadar profiling), ice core drilling, and installation of landmarks to measure velocity of the glacier motion. The GSSI ground-penetrating radars with the main frequencies of 270 MHz and 900 MHz were used. In addition, special explorations were conducted for detecting the englacial crevasses by means of remote-sensing methods. The GPR data allowed a revealing the boundary between snow-andfirn thickness and atmospheric ice. In the course of processing of 252 travel-time curves of the diffracted waves a kinematic model of the sub-surface part of the glacier has been constructed. It was found that the dielectric permittivity of the snowfirn thickness averages 2.43; similar value for the atmospheric ice amounts to 3.0. The GPR data made it possible to determine intraglacial (englacial) crevasses and to choose the most favorable field for the landing. On February 10, 2016, the first middle-range aircraft DC-3T (BT-67) had landed onto the new run-way near the station Mirny. Рассматриваются результаты гляциогеофизических инженерных изысканий в трёх летних полевых сезонах 2013–2016 гг. (59–61-я Российские антарктические экспедиции) в районе станции Мирный (Восточ- ная Антарктида). Цель работы – выбор места посадочной площадки для приёма среднемагистральных самолётов на лыжном шасси и последующая её организация. Работы предусматривали проведение аэрофотосъёмки, георадарного профилирования, кернового бурения, а также установку вех для изме- рения скорости течения ледника. Георадарные данные позволили выявить внутриледниковые трещины и выбрать наиболее удачное место для посадочной ...

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