The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls
The Nioghalvfjerdsfjorden glacier (also known as the 79∘ North Glacier) drains approximately 8 % of the Greenland Ice Sheet. Supraglacial lakes (SGLs), or surface melt ponds, are a persistent summertime feature and are thought to drain rapidly to the base of the glacier and influence seasonal ice ve...
Published in: | The Cryosphere |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2021
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00057820 2023-05-15T16:20:59+02:00 The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls Turton, Jenny V. Hochreuther, Philipp Reimann, Nathalie Blau, Manuel T. 2021-08 electronic https://doi.org/10.5194/tc-15-3877-2021 https://noa.gwlb.de/receive/cop_mods_00057820 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057470/tc-15-3877-2021.pdf https://tc.copernicus.org/articles/15/3877/2021/tc-15-3877-2021.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-3877-2021 https://noa.gwlb.de/receive/cop_mods_00057820 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057470/tc-15-3877-2021.pdf https://tc.copernicus.org/articles/15/3877/2021/tc-15-3877-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/tc-15-3877-2021 2022-02-08T22:33:24Z The Nioghalvfjerdsfjorden glacier (also known as the 79∘ North Glacier) drains approximately 8 % of the Greenland Ice Sheet. Supraglacial lakes (SGLs), or surface melt ponds, are a persistent summertime feature and are thought to drain rapidly to the base of the glacier and influence seasonal ice velocity. However, seasonal development and spatial distribution of SGLs in the north-east of Greenland are poorly understood, leaving a substantial error in the estimate of meltwater and its impacts on ice velocity. Using results from an automated detection of melt ponds, atmospheric and surface mass balance modelling, and reanalysis products, we investigate the role of specific climatic conditions in melt onset, extent, and duration from 2016 to 2019. The summers of 2016 and 2019 were characterised by above-average air temperatures, particularly in June, as well as a number of rainfall events, which led to extensive melt ponds to elevations up to 1600 m. Conversely, 2018 was particularly cold, with a large accumulated snowpack, which limited the development of lakes to altitudes less than 800 m. There is evidence of inland expansion and increases in the total area of lakes compared to the early 2000s, as projected by future global warming scenarios. Article in Journal/Newspaper glacier Greenland Ice Sheet Nioghalvfjerdsfjorden The Cryosphere Niedersächsisches Online-Archiv NOA Greenland Nioghalvfjerdsfjorden ENVELOPE(-21.500,-21.500,79.500,79.500) The Cryosphere 15 8 3877 3896 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Turton, Jenny V. Hochreuther, Philipp Reimann, Nathalie Blau, Manuel T. The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
topic_facet |
article Verlagsveröffentlichung |
description |
The Nioghalvfjerdsfjorden glacier (also known as the 79∘ North Glacier) drains approximately 8 % of the Greenland Ice Sheet. Supraglacial lakes (SGLs), or surface melt ponds, are a persistent summertime feature and are thought to drain rapidly to the base of the glacier and influence seasonal ice velocity. However, seasonal development and spatial distribution of SGLs in the north-east of Greenland are poorly understood, leaving a substantial error in the estimate of meltwater and its impacts on ice velocity. Using results from an automated detection of melt ponds, atmospheric and surface mass balance modelling, and reanalysis products, we investigate the role of specific climatic conditions in melt onset, extent, and duration from 2016 to 2019. The summers of 2016 and 2019 were characterised by above-average air temperatures, particularly in June, as well as a number of rainfall events, which led to extensive melt ponds to elevations up to 1600 m. Conversely, 2018 was particularly cold, with a large accumulated snowpack, which limited the development of lakes to altitudes less than 800 m. There is evidence of inland expansion and increases in the total area of lakes compared to the early 2000s, as projected by future global warming scenarios. |
format |
Article in Journal/Newspaper |
author |
Turton, Jenny V. Hochreuther, Philipp Reimann, Nathalie Blau, Manuel T. |
author_facet |
Turton, Jenny V. Hochreuther, Philipp Reimann, Nathalie Blau, Manuel T. |
author_sort |
Turton, Jenny V. |
title |
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
title_short |
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
title_full |
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
title_fullStr |
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
title_full_unstemmed |
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls |
title_sort |
distribution and evolution of supraglacial lakes on 79° n glacier (north-eastern greenland) and interannual climatic controls |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-3877-2021 https://noa.gwlb.de/receive/cop_mods_00057820 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057470/tc-15-3877-2021.pdf https://tc.copernicus.org/articles/15/3877/2021/tc-15-3877-2021.pdf |
long_lat |
ENVELOPE(-21.500,-21.500,79.500,79.500) |
geographic |
Greenland Nioghalvfjerdsfjorden |
geographic_facet |
Greenland Nioghalvfjerdsfjorden |
genre |
glacier Greenland Ice Sheet Nioghalvfjerdsfjorden The Cryosphere |
genre_facet |
glacier Greenland Ice Sheet Nioghalvfjerdsfjorden The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-3877-2021 https://noa.gwlb.de/receive/cop_mods_00057820 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057470/tc-15-3877-2021.pdf https://tc.copernicus.org/articles/15/3877/2021/tc-15-3877-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-15-3877-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
8 |
container_start_page |
3877 |
op_container_end_page |
3896 |
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1766009003221975040 |