Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010.
Accelerated discharge through marine-terminating outlet glaciers has been a key component of the rapid mass loss from Arctic glaciers since the 1990s. However, glacier retreat and its climatic controls have not been assessed at the pan-Arctic scale. Consequently, the spatial and temporal variability...
Published in: | Annals of Glaciology |
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Cambridge University Press
2017
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Online Access: | http://dro.dur.ac.uk/23802/ http://dro.dur.ac.uk/23802/1/23802.pdf http://dro.dur.ac.uk/23802/2/23802.pdf https://doi.org/10.1017/aog.2017.3 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:23802 2023-05-15T14:45:35+02:00 Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. Carr, R. Stokes, C.R. Vieli, A. 2017-04-01 application/pdf http://dro.dur.ac.uk/23802/ http://dro.dur.ac.uk/23802/1/23802.pdf http://dro.dur.ac.uk/23802/2/23802.pdf https://doi.org/10.1017/aog.2017.3 unknown Cambridge University Press dro:23802 issn:0022-1430 issn: 1727-5652 doi:10.1017/aog.2017.3 http://dro.dur.ac.uk/23802/ https://doi.org/10.1017/aog.2017.3 http://dro.dur.ac.uk/23802/1/23802.pdf http://dro.dur.ac.uk/23802/2/23802.pdf © The Author(s) 2017. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Journal of glaciology, 2017, Vol.58(4), pp.72-91 [Peer Reviewed Journal] Article PeerReviewed 2017 ftunivdurham https://doi.org/10.1017/aog.2017.3 2020-05-28T22:38:58Z Accelerated discharge through marine-terminating outlet glaciers has been a key component of the rapid mass loss from Arctic glaciers since the 1990s. However, glacier retreat and its climatic controls have not been assessed at the pan-Arctic scale. Consequently, the spatial and temporal variability in the magnitude of retreat, and the possible drivers are uncertain. Here we use remotely sensed data acquired over 273 outlet glaciers, located across the entire Atlantic Arctic (i.e. areas potentially influenced by North Atlantic climate and/or ocean conditions, specifically: Greenland, Novaya Zemlya, Franz Josef Land and Svalbard), to demonstrate high-magnitude, accelerating and near-ubiquitous retreat between 1992 and 2010. Overall, mean retreat rates increased by a factor of 3.5 between 1992 and 2000 (−30.5 m a−1 ) and 2000–10 (−105.8 m a−1 ), with 97% of the study glaciers retreating during the latter period. The Retreat was greatest in northern, western and south-eastern Greenland and also increased substantially on the Barents Sea coast of Novaya Zemlya. Glacier retreat showed no significant or consistent relationship with summer air temperatures at decadal timescales. The rate of frontal position change showed a significant, but weak, correlation with changes in sea-ice concentrations. We highlight large variations in retreat rates within regions and suggest that fjord topography plays an important role. We conclude that marine-terminating Arctic outlet glaciers show a common response of rapid and accelerating retreat at decadal timescales. Article in Journal/Newspaper Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Franz Josef Land glacier glacier Greenland Journal of Glaciology North Atlantic Novaya Zemlya Sea ice Svalbard Durham University: Durham Research Online Arctic Barents Sea Franz Josef Land ENVELOPE(55.000,55.000,81.000,81.000) Greenland Svalbard Annals of Glaciology 58 74 72 91 |
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Open Polar |
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Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
Accelerated discharge through marine-terminating outlet glaciers has been a key component of the rapid mass loss from Arctic glaciers since the 1990s. However, glacier retreat and its climatic controls have not been assessed at the pan-Arctic scale. Consequently, the spatial and temporal variability in the magnitude of retreat, and the possible drivers are uncertain. Here we use remotely sensed data acquired over 273 outlet glaciers, located across the entire Atlantic Arctic (i.e. areas potentially influenced by North Atlantic climate and/or ocean conditions, specifically: Greenland, Novaya Zemlya, Franz Josef Land and Svalbard), to demonstrate high-magnitude, accelerating and near-ubiquitous retreat between 1992 and 2010. Overall, mean retreat rates increased by a factor of 3.5 between 1992 and 2000 (−30.5 m a−1 ) and 2000–10 (−105.8 m a−1 ), with 97% of the study glaciers retreating during the latter period. The Retreat was greatest in northern, western and south-eastern Greenland and also increased substantially on the Barents Sea coast of Novaya Zemlya. Glacier retreat showed no significant or consistent relationship with summer air temperatures at decadal timescales. The rate of frontal position change showed a significant, but weak, correlation with changes in sea-ice concentrations. We highlight large variations in retreat rates within regions and suggest that fjord topography plays an important role. We conclude that marine-terminating Arctic outlet glaciers show a common response of rapid and accelerating retreat at decadal timescales. |
format |
Article in Journal/Newspaper |
author |
Carr, R. Stokes, C.R. Vieli, A. |
spellingShingle |
Carr, R. Stokes, C.R. Vieli, A. Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
author_facet |
Carr, R. Stokes, C.R. Vieli, A. |
author_sort |
Carr, R. |
title |
Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
title_short |
Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
title_full |
Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
title_fullStr |
Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
title_full_unstemmed |
Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic : 1992-2010. |
title_sort |
threefold increase in marine-terminating outlet glacier retreat rates across the atlantic arctic : 1992-2010. |
publisher |
Cambridge University Press |
publishDate |
2017 |
url |
http://dro.dur.ac.uk/23802/ http://dro.dur.ac.uk/23802/1/23802.pdf http://dro.dur.ac.uk/23802/2/23802.pdf https://doi.org/10.1017/aog.2017.3 |
long_lat |
ENVELOPE(55.000,55.000,81.000,81.000) |
geographic |
Arctic Barents Sea Franz Josef Land Greenland Svalbard |
geographic_facet |
Arctic Barents Sea Franz Josef Land Greenland Svalbard |
genre |
Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Franz Josef Land glacier glacier Greenland Journal of Glaciology North Atlantic Novaya Zemlya Sea ice Svalbard |
genre_facet |
Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Franz Josef Land glacier glacier Greenland Journal of Glaciology North Atlantic Novaya Zemlya Sea ice Svalbard |
op_source |
Journal of glaciology, 2017, Vol.58(4), pp.72-91 [Peer Reviewed Journal] |
op_relation |
dro:23802 issn:0022-1430 issn: 1727-5652 doi:10.1017/aog.2017.3 http://dro.dur.ac.uk/23802/ https://doi.org/10.1017/aog.2017.3 http://dro.dur.ac.uk/23802/1/23802.pdf http://dro.dur.ac.uk/23802/2/23802.pdf |
op_rights |
© The Author(s) 2017. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1017/aog.2017.3 |
container_title |
Annals of Glaciology |
container_volume |
58 |
container_issue |
74 |
container_start_page |
72 |
op_container_end_page |
91 |
_version_ |
1766316978275876864 |