Insights on the surge behavior of Storstrømmen and L. Bistrup Bræ, Northeast Greenland, over the last century

Jeremie Mouginot; Anders Anker Bjørk; Romain Millan; Bernd Scheuchl; Eric Rignot

Insights on the surge behavior of Storstrømmen and L. Bistrup Bræ, Northeast Greenland, over the last century

Jeremie Mouginot, Anders Anker Bjørk, Romain Millan, Bernd Scheuchl, Eric Rignot

9 Citationer (Scopus)

Abstract

We use a multisensor approach to assess the surge history over the past century of Storstrømmen and L. Bistrup Bræ, which drain the Northeast Ice Stream, Greenland. Storstrømmen surged around 1910 and Bistrup in 1913 and during the 1950s. Between 1978 and 1982, the speed of Storstrømmen peaked at 3 km/year during an active surge phase that lasted 10 years and the glacier has stayed in a quiescent phase since. Bistrup started to surge in 1988, peaked in 1993, and stopped in 1996. Both glaciers displayed a slow surge initiation and termination. Since 1993, ice builds up in the upper part of Storstrømmen at a 1 m/year, its lower part is thinning at its ablation rate of 1.4 m/year, and the grounding line has retreated by 10 km between 1992 and 2017, or 400 m/year. At these current rates, we project that Storstrømmen will meet presurge conditions in 2027–2030.

Originalsprog	Engelsk
Artikelnummer	11,197-11,205
Tidsskrift	Geophysical Research Letters
Vol/bind	45
Udgave nummer	20
Antal sider	9
ISSN	1944-8007
Status	Udgivet - 28 okt. 2018

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title = "Insights on the surge behavior of Storstr{\o}mmen and L. Bistrup Br{\ae}, Northeast Greenland, over the last century",

abstract = "We use a multisensor approach to assess the surge history over the past century of Storstr{\o}mmen and L. Bistrup Br{\ae}, which drain the Northeast Ice Stream, Greenland. Storstr{\o}mmen surged around 1910 and Bistrup in 1913 and during the 1950s. Between 1978 and 1982, the speed of Storstr{\o}mmen peaked at 3 km/year during an active surge phase that lasted 10 years and the glacier has stayed in a quiescent phase since. Bistrup started to surge in 1988, peaked in 1993, and stopped in 1996. Both glaciers displayed a slow surge initiation and termination. Since 1993, ice builds up in the upper part of Storstr{\o}mmen at a 1 m/year, its lower part is thinning at its ablation rate of 1.4 m/year, and the grounding line has retreated by 10 km between 1992 and 2017, or 400 m/year. At these current rates, we project that Storstr{\o}mmen will meet presurge conditions in 2027–2030.",

keywords = "Greenland, cryosphere, multisensor, surging glacier",

author = "Jeremie Mouginot and Bj{\o}rk, {Anders Anker} and Romain Millan and Bernd Scheuchl and Eric Rignot",

year = "2018",

month = oct,

day = "28",

language = "English",

volume = "45",

journal = "Geophysical Research Letters",

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TY - JOUR

T1 - Insights on the surge behavior of Storstrømmen and L. Bistrup Bræ, Northeast Greenland, over the last century

AU - Mouginot, Jeremie

AU - Bjørk, Anders Anker

AU - Millan, Romain

AU - Scheuchl, Bernd

AU - Rignot, Eric

PY - 2018/10/28

Y1 - 2018/10/28

N2 - We use a multisensor approach to assess the surge history over the past century of Storstrømmen and L. Bistrup Bræ, which drain the Northeast Ice Stream, Greenland. Storstrømmen surged around 1910 and Bistrup in 1913 and during the 1950s. Between 1978 and 1982, the speed of Storstrømmen peaked at 3 km/year during an active surge phase that lasted 10 years and the glacier has stayed in a quiescent phase since. Bistrup started to surge in 1988, peaked in 1993, and stopped in 1996. Both glaciers displayed a slow surge initiation and termination. Since 1993, ice builds up in the upper part of Storstrømmen at a 1 m/year, its lower part is thinning at its ablation rate of 1.4 m/year, and the grounding line has retreated by 10 km between 1992 and 2017, or 400 m/year. At these current rates, we project that Storstrømmen will meet presurge conditions in 2027–2030.

AB - We use a multisensor approach to assess the surge history over the past century of Storstrømmen and L. Bistrup Bræ, which drain the Northeast Ice Stream, Greenland. Storstrømmen surged around 1910 and Bistrup in 1913 and during the 1950s. Between 1978 and 1982, the speed of Storstrømmen peaked at 3 km/year during an active surge phase that lasted 10 years and the glacier has stayed in a quiescent phase since. Bistrup started to surge in 1988, peaked in 1993, and stopped in 1996. Both glaciers displayed a slow surge initiation and termination. Since 1993, ice builds up in the upper part of Storstrømmen at a 1 m/year, its lower part is thinning at its ablation rate of 1.4 m/year, and the grounding line has retreated by 10 km between 1992 and 2017, or 400 m/year. At these current rates, we project that Storstrømmen will meet presurge conditions in 2027–2030.

KW - Greenland

KW - cryosphere

KW - multisensor

KW - surging glacier

M3 - Journal article

SN - 0094-8276

VL - 45

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 20

M1 - 11,197-11,205

ER -

Insights on the surge behavior of Storstrømmen and L. Bistrup Bræ, Northeast Greenland, over the last century

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