Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013
Novaya Zemlya (NVZ) has experienced rapid ice loss and accelerated marine-terminating glacier retreat during the past 2 decades. However, it is unknown whether this retreat is exceptional longer term and/or whether it has persisted since 2010. Investigating this is vital, as dynamic thinning may con...
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Online Access: | https://eprints.lancs.ac.uk/id/eprint/87676/ https://doi.org/10.5194/tc-11-2149-2017 |
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ftulancaster:oai:eprints.lancs.ac.uk:87676 2023-08-27T04:10:54+02:00 Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 Carr, J. Rachel Bell, Heather Killick, Rebecca Claire Holt, Tom 2017-09-08 https://eprints.lancs.ac.uk/id/eprint/87676/ https://doi.org/10.5194/tc-11-2149-2017 unknown Carr, J. Rachel and Bell, Heather and Killick, Rebecca Claire and Holt, Tom (2017) Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013. Cryosphere, 11 (5). pp. 2149-2174. ISSN 1994-0416 Journal Article PeerReviewed 2017 ftulancaster https://doi.org/10.5194/tc-11-2149-2017 2023-08-03T22:31:52Z Novaya Zemlya (NVZ) has experienced rapid ice loss and accelerated marine-terminating glacier retreat during the past 2 decades. However, it is unknown whether this retreat is exceptional longer term and/or whether it has persisted since 2010. Investigating this is vital, as dynamic thinning may contribute substantially to ice loss from NVZ, but is not currently included in sea level rise predictions. Here, we use remotely sensed data to assess controls on NVZ glacier retreat between 1973/76 and 2015. Glaciers that terminate into lakes or the ocean receded 3.5 times faster than those that terminate on land. Between 2000 and 2013, retreat rates were significantly higher on marine-terminating outlet glaciers than during the previous 27 years, and we observe widespread slowdown in retreat, and even advance, between 2013 and 2015. There were some common patterns in the timing of glacier retreat, but the magnitude varied between individual glaciers. Rapid retreat between 2000 and 2013 corresponds to a period of significantly warmer air temperatures and reduced sea ice concentrations, and to changes in the North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO). We need to assess the impact of this accelerated retreat on dynamic ice losses from NVZ to accurately quantify its future sea level rise contribution. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Novaya Zemlya Sea ice Lancaster University: Lancaster Eprints The Cryosphere 11 5 2149 2174 |
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Open Polar |
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Lancaster University: Lancaster Eprints |
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ftulancaster |
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description |
Novaya Zemlya (NVZ) has experienced rapid ice loss and accelerated marine-terminating glacier retreat during the past 2 decades. However, it is unknown whether this retreat is exceptional longer term and/or whether it has persisted since 2010. Investigating this is vital, as dynamic thinning may contribute substantially to ice loss from NVZ, but is not currently included in sea level rise predictions. Here, we use remotely sensed data to assess controls on NVZ glacier retreat between 1973/76 and 2015. Glaciers that terminate into lakes or the ocean receded 3.5 times faster than those that terminate on land. Between 2000 and 2013, retreat rates were significantly higher on marine-terminating outlet glaciers than during the previous 27 years, and we observe widespread slowdown in retreat, and even advance, between 2013 and 2015. There were some common patterns in the timing of glacier retreat, but the magnitude varied between individual glaciers. Rapid retreat between 2000 and 2013 corresponds to a period of significantly warmer air temperatures and reduced sea ice concentrations, and to changes in the North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO). We need to assess the impact of this accelerated retreat on dynamic ice losses from NVZ to accurately quantify its future sea level rise contribution. |
format |
Article in Journal/Newspaper |
author |
Carr, J. Rachel Bell, Heather Killick, Rebecca Claire Holt, Tom |
spellingShingle |
Carr, J. Rachel Bell, Heather Killick, Rebecca Claire Holt, Tom Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
author_facet |
Carr, J. Rachel Bell, Heather Killick, Rebecca Claire Holt, Tom |
author_sort |
Carr, J. Rachel |
title |
Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
title_short |
Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
title_full |
Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
title_fullStr |
Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
title_full_unstemmed |
Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
title_sort |
exceptional retreat of novaya zemlya's marine-terminating outlet glaciers between 2000 and 2013 |
publishDate |
2017 |
url |
https://eprints.lancs.ac.uk/id/eprint/87676/ https://doi.org/10.5194/tc-11-2149-2017 |
genre |
North Atlantic North Atlantic oscillation Novaya Zemlya Sea ice |
genre_facet |
North Atlantic North Atlantic oscillation Novaya Zemlya Sea ice |
op_relation |
Carr, J. Rachel and Bell, Heather and Killick, Rebecca Claire and Holt, Tom (2017) Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013. Cryosphere, 11 (5). pp. 2149-2174. ISSN 1994-0416 |
op_doi |
https://doi.org/10.5194/tc-11-2149-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
5 |
container_start_page |
2149 |
op_container_end_page |
2174 |
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1775353291649056768 |