Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013
peer reviewed The Greenland ice sheet (GrIS) has experienced dramatic ice loss during recent decades, but the drivers of the surface mass balance (SMB) variation remain unclear. From a dynamical perspective, extratropical cyclones and anticyclones are the major systems influencing Greenland weather...
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Online Access: | https://orbi.uliege.be/handle/2268/189112 https://doi.org/10.1002/joc.4565 |
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ftorbi:oai:orbi.ulg.ac.be:2268/189112 2024-04-21T08:02:59+00:00 Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 Chen, L. Fettweis, Xavier Knudsen, E. Johannessen, O. 2016 https://orbi.uliege.be/handle/2268/189112 https://doi.org/10.1002/joc.4565 en eng John Wiley & Sons Ltd. http://onlinelibrary.wiley.com/doi/10.1002/joc.4565/abstract?campaign=wolearlyview urn:issn:0899-8418 urn:issn:1097-0088 https://orbi.uliege.be/handle/2268/189112 info:hdl:2268/189112 doi:10.1002/joc.4565 scopus-id:2-s2.0-84979903088 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess International Journal of Climatology (2016) cyclonic activity Greenland ice sheet Surface Mass Balance Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2016 ftorbi https://doi.org/10.1002/joc.4565 2024-03-27T14:53:04Z peer reviewed The Greenland ice sheet (GrIS) has experienced dramatic ice loss during recent decades, but the drivers of the surface mass balance (SMB) variation remain unclear. From a dynamical perspective, extratropical cyclones and anticyclones are the major systems influencing Greenland weather conditions. Seasonal cyclonic and anticyclonic activities have been quantified for the area of 50°–90°N, 80°W–10°E during 1980–2013. Based on a singular value decomposition (SVD) analysis, we investigated the role of synoptic scale cyclonic and anticyclonic activities in determining snow accumulation (SA) and surface air temperature (SAT). Thus, the SA-driven and melt-driven SMB variability has been determined. SA-related synoptic patterns identified from the leading and the second SVD modes explain up to 80% of the inter-annual SMB variance, especially in southern and northwestern Greenland, where we found the largest and second largest amount of annual SA. SAT-related patterns account for up to 80% of the inter-annual SMB variation along the west and northwest coast of Greenland, where significant surface mass loss has been observed over the last decades. It should be noted that the negative phase of the SA-related pattern derived from the first SVD mode in June-July-August and the positive phase of the SAT-related (anti)cyclonic patterns have occurred more frequently since 2005, meaning that the phase change of these patterns has made a major contribution to the accelerated GrIS surface ice loss during recent years. Article in Journal/Newspaper Greenland Ice Sheet University of Liège: ORBi (Open Repository and Bibliography) International Journal of Climatology 36 10 3423 3433 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
cyclonic activity Greenland ice sheet Surface Mass Balance Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
cyclonic activity Greenland ice sheet Surface Mass Balance Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Chen, L. Fettweis, Xavier Knudsen, E. Johannessen, O. Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
topic_facet |
cyclonic activity Greenland ice sheet Surface Mass Balance Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed The Greenland ice sheet (GrIS) has experienced dramatic ice loss during recent decades, but the drivers of the surface mass balance (SMB) variation remain unclear. From a dynamical perspective, extratropical cyclones and anticyclones are the major systems influencing Greenland weather conditions. Seasonal cyclonic and anticyclonic activities have been quantified for the area of 50°–90°N, 80°W–10°E during 1980–2013. Based on a singular value decomposition (SVD) analysis, we investigated the role of synoptic scale cyclonic and anticyclonic activities in determining snow accumulation (SA) and surface air temperature (SAT). Thus, the SA-driven and melt-driven SMB variability has been determined. SA-related synoptic patterns identified from the leading and the second SVD modes explain up to 80% of the inter-annual SMB variance, especially in southern and northwestern Greenland, where we found the largest and second largest amount of annual SA. SAT-related patterns account for up to 80% of the inter-annual SMB variation along the west and northwest coast of Greenland, where significant surface mass loss has been observed over the last decades. It should be noted that the negative phase of the SA-related pattern derived from the first SVD mode in June-July-August and the positive phase of the SAT-related (anti)cyclonic patterns have occurred more frequently since 2005, meaning that the phase change of these patterns has made a major contribution to the accelerated GrIS surface ice loss during recent years. |
format |
Article in Journal/Newspaper |
author |
Chen, L. Fettweis, Xavier Knudsen, E. Johannessen, O. |
author_facet |
Chen, L. Fettweis, Xavier Knudsen, E. Johannessen, O. |
author_sort |
Chen, L. |
title |
Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
title_short |
Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
title_full |
Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
title_fullStr |
Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
title_full_unstemmed |
Impact of cyclonic and anticyclonic activity on Greenland ice sheet surface mass balance variation during 1980–2013 |
title_sort |
impact of cyclonic and anticyclonic activity on greenland ice sheet surface mass balance variation during 1980–2013 |
publisher |
John Wiley & Sons Ltd. |
publishDate |
2016 |
url |
https://orbi.uliege.be/handle/2268/189112 https://doi.org/10.1002/joc.4565 |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
International Journal of Climatology (2016) |
op_relation |
http://onlinelibrary.wiley.com/doi/10.1002/joc.4565/abstract?campaign=wolearlyview urn:issn:0899-8418 urn:issn:1097-0088 https://orbi.uliege.be/handle/2268/189112 info:hdl:2268/189112 doi:10.1002/joc.4565 scopus-id:2-s2.0-84979903088 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/joc.4565 |
container_title |
International Journal of Climatology |
container_volume |
36 |
container_issue |
10 |
container_start_page |
3423 |
op_container_end_page |
3433 |
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1796943013394513920 |