Modelling annual mass balances of eight Scandinavian glaciers using statistical models
Mass balances of Scandinavian glaciers are mainly influenced by winter precipitation and summer temperature. We used simple statistical models to assess the relative importance of summer temperature and winter precipitation for annual balances of eight glaciers in Scandinavia. Winter precipitation w...
Published in: | The Cryosphere |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications on behalf of the European Geosciences Union
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/1956/10991 https://doi.org/10.5194/tc-9-1401-2015 |
id |
ftunivbergen:oai:bora.uib.no:1956/10991 |
---|---|
record_format |
openpolar |
spelling |
ftunivbergen:oai:bora.uib.no:1956/10991 2023-05-15T17:34:19+02:00 Modelling annual mass balances of eight Scandinavian glaciers using statistical models Trachsel, Mathias Nesje, Atle 2015-12-21T20:13:56Z application/pdf http://hdl.handle.net/1956/10991 https://doi.org/10.5194/tc-9-1401-2015 eng eng Copernicus Publications on behalf of the European Geosciences Union urn:issn:1994-0424 http://hdl.handle.net/1956/10991 https://doi.org/10.5194/tc-9-1401-2015 cristin:1264398 Attribution CC BY 3.0 http://creativecommons.org/licenses/by/3.0 Copyright Author(s) 2015 Scandinavian glaciers VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Peer reviewed Journal article 2015 ftunivbergen https://doi.org/10.5194/tc-9-1401-2015 2023-03-14T17:39:58Z Mass balances of Scandinavian glaciers are mainly influenced by winter precipitation and summer temperature. We used simple statistical models to assess the relative importance of summer temperature and winter precipitation for annual balances of eight glaciers in Scandinavia. Winter precipitation was more important for maritime glaciers, whereas summer temperature was more important for annual balances of continental glaciers. Most importantly relative importances of summer temperature and winter precipitation were not stable in time. For instance, winter precipitation was more important than summer temperature for all glaciers in the 25-year period 1972–1996, whereas the relative importance of summer temperature was increasing towards the present. Between 1963 and 1996 the Atlantic Multidecadal Oscillation (AMO) index was consistently negative and the North Atlantic Oscillation (NAO) Index was consistently positive between 1987 and 1995, both being favourable for glacier growth. Winter precipitation was more important than summer temperature for annual balances when only considering subsets of years with high NAO-index and negative AMO-index, respectively, whereas the importance of summer temperature was increased analysing subsets of years with low NAO-index and positive AMO-index, respectively. Hence, the relative importance of precipitation and temperature for mass balances was probably influenced by the state of the AMO and the NAO, as these two indexes are associated with changes in summer temperature (AMO) and winter precipitation (NAO). publishedVersion Article in Journal/Newspaper North Atlantic North Atlantic oscillation University of Bergen: Bergen Open Research Archive (BORA-UiB) The Cryosphere 9 4 1401 1414 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Scandinavian glaciers VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
Scandinavian glaciers VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Trachsel, Mathias Nesje, Atle Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
topic_facet |
Scandinavian glaciers VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
Mass balances of Scandinavian glaciers are mainly influenced by winter precipitation and summer temperature. We used simple statistical models to assess the relative importance of summer temperature and winter precipitation for annual balances of eight glaciers in Scandinavia. Winter precipitation was more important for maritime glaciers, whereas summer temperature was more important for annual balances of continental glaciers. Most importantly relative importances of summer temperature and winter precipitation were not stable in time. For instance, winter precipitation was more important than summer temperature for all glaciers in the 25-year period 1972–1996, whereas the relative importance of summer temperature was increasing towards the present. Between 1963 and 1996 the Atlantic Multidecadal Oscillation (AMO) index was consistently negative and the North Atlantic Oscillation (NAO) Index was consistently positive between 1987 and 1995, both being favourable for glacier growth. Winter precipitation was more important than summer temperature for annual balances when only considering subsets of years with high NAO-index and negative AMO-index, respectively, whereas the importance of summer temperature was increased analysing subsets of years with low NAO-index and positive AMO-index, respectively. Hence, the relative importance of precipitation and temperature for mass balances was probably influenced by the state of the AMO and the NAO, as these two indexes are associated with changes in summer temperature (AMO) and winter precipitation (NAO). publishedVersion |
format |
Article in Journal/Newspaper |
author |
Trachsel, Mathias Nesje, Atle |
author_facet |
Trachsel, Mathias Nesje, Atle |
author_sort |
Trachsel, Mathias |
title |
Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
title_short |
Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
title_full |
Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
title_fullStr |
Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
title_full_unstemmed |
Modelling annual mass balances of eight Scandinavian glaciers using statistical models |
title_sort |
modelling annual mass balances of eight scandinavian glaciers using statistical models |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2015 |
url |
http://hdl.handle.net/1956/10991 https://doi.org/10.5194/tc-9-1401-2015 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
urn:issn:1994-0424 http://hdl.handle.net/1956/10991 https://doi.org/10.5194/tc-9-1401-2015 cristin:1264398 |
op_rights |
Attribution CC BY 3.0 http://creativecommons.org/licenses/by/3.0 Copyright Author(s) 2015 |
op_doi |
https://doi.org/10.5194/tc-9-1401-2015 |
container_title |
The Cryosphere |
container_volume |
9 |
container_issue |
4 |
container_start_page |
1401 |
op_container_end_page |
1414 |
_version_ |
1766133112046092288 |