Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation

Odin Haga, Robert McNabb, Bas Altena, Christopher Nuth

Research output: Contribution to conferenceAbstract

Abstract

Negribreen, a tidewater glacier located in mid-eastern Svalbard, began accelerating rapidly during spring/summer 2016. Ice horizontal velocities have reached above 30 meters per day making it one of the fastest flowing glaciers on the archipelago. The last surge is thought to have occurred in the 1930s, but due to a very long quiescent phase, prior investigations of this glacier have been limited. As Negribreen is part of one of the largest glacier systems in Svalbard, investigating its current surge event will provide important information on surge behavior within the region. Here, we demonstrate the surge development and propagation using a time series of digital elevation models from various sources (ca. 1970-2018) and surface velocities from the newly available Global Land and Ice Thickness Velocity Extraction from Landsat 8 (GoLIVE) dataset. Preliminary analysis of changes in surface elevation and velocity shows similarities to other Arctic surging glaciers with rapid acceleration of the terminus leading to slight advance and draw down further up-glacier. Finally, we demonstrate the feasibility of using dense time series of data derived from optical sensors to study rapid glacier changes in the High Arctic.

Conference

Conference27th IUGG General Assembly
CountryCanada
CityMontreal
Period8/07/1918/07/19
Internet address

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glacier
time series
tidewater glacier
ice thickness
archipelago
Landsat
digital elevation model
sensor
ice
summer

Cite this

Haga, O., McNabb, R., Altena, B., & Nuth, C. (2019). Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation. Abstract from 27th IUGG General Assembly, Montreal, Canada.
Haga, Odin ; McNabb, Robert ; Altena, Bas ; Nuth, Christopher. / Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation. Abstract from 27th IUGG General Assembly, Montreal, Canada.
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title = "Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation",
abstract = "Negribreen, a tidewater glacier located in mid-eastern Svalbard, began accelerating rapidly during spring/summer 2016. Ice horizontal velocities have reached above 30 meters per day making it one of the fastest flowing glaciers on the archipelago. The last surge is thought to have occurred in the 1930s, but due to a very long quiescent phase, prior investigations of this glacier have been limited. As Negribreen is part of one of the largest glacier systems in Svalbard, investigating its current surge event will provide important information on surge behavior within the region. Here, we demonstrate the surge development and propagation using a time series of digital elevation models from various sources (ca. 1970-2018) and surface velocities from the newly available Global Land and Ice Thickness Velocity Extraction from Landsat 8 (GoLIVE) dataset. Preliminary analysis of changes in surface elevation and velocity shows similarities to other Arctic surging glaciers with rapid acceleration of the terminus leading to slight advance and draw down further up-glacier. Finally, we demonstrate the feasibility of using dense time series of data derived from optical sensors to study rapid glacier changes in the High Arctic.",
author = "Odin Haga and Robert McNabb and Bas Altena and Christopher Nuth",
year = "2019",
month = "7",
day = "9",
language = "English",
note = "27th IUGG General Assembly ; Conference date: 08-07-2019 Through 18-07-2019",
url = "http://iugg2019montreal.com/",

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Haga, O, McNabb, R, Altena, B & Nuth, C 2019, 'Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation' 27th IUGG General Assembly, Montreal, Canada, 8/07/19 - 18/07/19, .

Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation. / Haga, Odin; McNabb, Robert; Altena, Bas; Nuth, Christopher.

2019. Abstract from 27th IUGG General Assembly, Montreal, Canada.

Research output: Contribution to conferenceAbstract

TY - CONF

T1 - Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation

AU - Haga, Odin

AU - McNabb, Robert

AU - Altena, Bas

AU - Nuth, Christopher

PY - 2019/7/9

Y1 - 2019/7/9

N2 - Negribreen, a tidewater glacier located in mid-eastern Svalbard, began accelerating rapidly during spring/summer 2016. Ice horizontal velocities have reached above 30 meters per day making it one of the fastest flowing glaciers on the archipelago. The last surge is thought to have occurred in the 1930s, but due to a very long quiescent phase, prior investigations of this glacier have been limited. As Negribreen is part of one of the largest glacier systems in Svalbard, investigating its current surge event will provide important information on surge behavior within the region. Here, we demonstrate the surge development and propagation using a time series of digital elevation models from various sources (ca. 1970-2018) and surface velocities from the newly available Global Land and Ice Thickness Velocity Extraction from Landsat 8 (GoLIVE) dataset. Preliminary analysis of changes in surface elevation and velocity shows similarities to other Arctic surging glaciers with rapid acceleration of the terminus leading to slight advance and draw down further up-glacier. Finally, we demonstrate the feasibility of using dense time series of data derived from optical sensors to study rapid glacier changes in the High Arctic.

AB - Negribreen, a tidewater glacier located in mid-eastern Svalbard, began accelerating rapidly during spring/summer 2016. Ice horizontal velocities have reached above 30 meters per day making it one of the fastest flowing glaciers on the archipelago. The last surge is thought to have occurred in the 1930s, but due to a very long quiescent phase, prior investigations of this glacier have been limited. As Negribreen is part of one of the largest glacier systems in Svalbard, investigating its current surge event will provide important information on surge behavior within the region. Here, we demonstrate the surge development and propagation using a time series of digital elevation models from various sources (ca. 1970-2018) and surface velocities from the newly available Global Land and Ice Thickness Velocity Extraction from Landsat 8 (GoLIVE) dataset. Preliminary analysis of changes in surface elevation and velocity shows similarities to other Arctic surging glaciers with rapid acceleration of the terminus leading to slight advance and draw down further up-glacier. Finally, we demonstrate the feasibility of using dense time series of data derived from optical sensors to study rapid glacier changes in the High Arctic.

M3 - Abstract

ER -

Haga O, McNabb R, Altena B, Nuth C. Investigating the Surge of Negribreen, Svalbard, from Evolving Surface Velocities and Elevation. 2019. Abstract from 27th IUGG General Assembly, Montreal, Canada.