Vast ice depression in Dålk Glacier, East Antarctica

Standard

Vast ice depression in Dålk Glacier, East Antarctica. / Popov, S. V.; Pryakhin, S. S.; Bliakharskii, D. P.; Pryakhina, G. V.; Tyurin, S. V.

In: Led i Sneg, Vol. 57, No. 3, 01.01.2017, p. 427-432.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4036ca95f2a94e98b60e3d562441fb10,

title = "Vast ice depression in D{\aa}lk Glacier, East Antarctica",

abstract = "In the afternoon of January 30, 2017, the wide depression in the western part of the D{\aa}lk Glacier, East Antarctica, was formed. By coincidence, aerial surveying was carried out in this area, so it is possible to assess the extent of this catastrophic phenomenon. Aerial photos were taken on January 20 and February 9, 2017, respectively. Based on the photographic data, the size of the depression were 183 × 220 m, and its area reached 40.260 m2. The depth of the depression in the early days was 20-30 meters; the maximum measured depth was 43 m. An approximate volume of the cavern was about 884, 013 m3. On preliminary conclusions, this event should be the similar jokulhlaups, when the water of Boulder Lake broke the icy border and rushed downstream under D{\aa}lk Glacier to Prudz Bay.",

keywords = "Antarctic glaciology, Glacier hydrology, Jokulhlaups, Subglacial processes, Subglacier floods",

author = "Popov, {S. V.} and Pryakhin, {S. S.} and Bliakharskii, {D. P.} and Pryakhina, {G. V.} and Tyurin, {S. V.}",

year = "2017",

month = jan,

day = "1",

doi = "10.15356/2076-6734-2017-3-427-432",

language = "English",

volume = "57",

pages = "427--432",

journal = "Лед и Снег",

issn = "2076-6734",

publisher = "Институт географии РАН",

number = "3",

}

RIS

TY - JOUR

T1 - Vast ice depression in Dålk Glacier, East Antarctica

AU - Popov, S. V.

AU - Pryakhin, S. S.

AU - Bliakharskii, D. P.

AU - Pryakhina, G. V.

AU - Tyurin, S. V.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - In the afternoon of January 30, 2017, the wide depression in the western part of the Dålk Glacier, East Antarctica, was formed. By coincidence, aerial surveying was carried out in this area, so it is possible to assess the extent of this catastrophic phenomenon. Aerial photos were taken on January 20 and February 9, 2017, respectively. Based on the photographic data, the size of the depression were 183 × 220 m, and its area reached 40.260 m2. The depth of the depression in the early days was 20-30 meters; the maximum measured depth was 43 m. An approximate volume of the cavern was about 884, 013 m3. On preliminary conclusions, this event should be the similar jokulhlaups, when the water of Boulder Lake broke the icy border and rushed downstream under Dålk Glacier to Prudz Bay.

AB - In the afternoon of January 30, 2017, the wide depression in the western part of the Dålk Glacier, East Antarctica, was formed. By coincidence, aerial surveying was carried out in this area, so it is possible to assess the extent of this catastrophic phenomenon. Aerial photos were taken on January 20 and February 9, 2017, respectively. Based on the photographic data, the size of the depression were 183 × 220 m, and its area reached 40.260 m2. The depth of the depression in the early days was 20-30 meters; the maximum measured depth was 43 m. An approximate volume of the cavern was about 884, 013 m3. On preliminary conclusions, this event should be the similar jokulhlaups, when the water of Boulder Lake broke the icy border and rushed downstream under Dålk Glacier to Prudz Bay.

KW - Antarctic glaciology

KW - Glacier hydrology

KW - Jokulhlaups

KW - Subglacial processes

KW - Subglacier floods

UR - http://www.scopus.com/inward/record.url?scp=85032475095&partnerID=8YFLogxK

U2 - 10.15356/2076-6734-2017-3-427-432

DO - 10.15356/2076-6734-2017-3-427-432

M3 - Article

AN - SCOPUS:85032475095

VL - 57

SP - 427

EP - 432

JO - Лед и Снег

JF - Лед и Снег

SN - 2076-6734

IS - 3

ER -

ID: 35985840