Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes
In this paper, we give an overview of changes in area, length, surface elevation and mass balance of glaciers in mainland Norway since the 1960s. Frontal advances have been recorded in all regions except the northernmost glaciers in Troms and Finnmark (Storsteinsfjellbreen, Lyngen and Langfjordjøkel...
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Cambridge University Press
2020
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ftdoajarticles:oai:doaj.org/article:1c4af901c1b74535adb1dc166f03c97e 2023-05-15T16:13:42+02:00 Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes Liss M. Andreassen Hallgeir Elvehøy Bjarne Kjøllmoen Joaquín M. C. Belart 2020-04-01T00:00:00Z https://doi.org/10.1017/jog.2020.10 https://doaj.org/article/1c4af901c1b74535adb1dc166f03c97e EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143020000106/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.10 0022-1430 1727-5652 https://doaj.org/article/1c4af901c1b74535adb1dc166f03c97e Journal of Glaciology, Vol 66, Pp 313-328 (2020) Glacier fluctuations glacier mapping glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/jog.2020.10 2023-03-12T01:30:57Z In this paper, we give an overview of changes in area, length, surface elevation and mass balance of glaciers in mainland Norway since the 1960s. Frontal advances have been recorded in all regions except the northernmost glaciers in Troms and Finnmark (Storsteinsfjellbreen, Lyngen and Langfjordjøkelen). More than half of the observed glaciers, 27 of 49, had marked advances in the 1990s. The glaciological mass-balance values for the period 1962–2018, where 43 glaciers have been measured, show great inter-annual variability. The results reveal accelerated deficit since 2000, the most negative decade being 2001–2010. Some years with a positive mass balance (or less negative) after 2010s can be attributed to variations in large-scale atmospheric circulation. A surface elevation change and geodetic mass balance were calculated for a sample of 131 glaciers covering 817 km2 in the ‘1960s’ and 734 km2 in the ‘2010s’, giving an area reduction of 84 km2, or 10%. The sample covers many of the largest glaciers in Norway, and they had an overall change in surface elevation of −15.5 m for the ~50 year period. Converted to a geodetic mass balance this gives a mean mass balance of −0.27 ± 0.05 m w.e. a−1. Article in Journal/Newspaper Finnmark glacier Journal of Glaciology Lyngen Finnmark Lyngen Troms Directory of Open Access Journals: DOAJ Articles Norway Langfjordjøkelen ENVELOPE(21.721,21.721,70.140,70.140) Journal of Glaciology 66 256 313 328 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Glacier fluctuations glacier mapping glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Glacier fluctuations glacier mapping glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Liss M. Andreassen Hallgeir Elvehøy Bjarne Kjøllmoen Joaquín M. C. Belart Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
topic_facet |
Glacier fluctuations glacier mapping glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
In this paper, we give an overview of changes in area, length, surface elevation and mass balance of glaciers in mainland Norway since the 1960s. Frontal advances have been recorded in all regions except the northernmost glaciers in Troms and Finnmark (Storsteinsfjellbreen, Lyngen and Langfjordjøkelen). More than half of the observed glaciers, 27 of 49, had marked advances in the 1990s. The glaciological mass-balance values for the period 1962–2018, where 43 glaciers have been measured, show great inter-annual variability. The results reveal accelerated deficit since 2000, the most negative decade being 2001–2010. Some years with a positive mass balance (or less negative) after 2010s can be attributed to variations in large-scale atmospheric circulation. A surface elevation change and geodetic mass balance were calculated for a sample of 131 glaciers covering 817 km2 in the ‘1960s’ and 734 km2 in the ‘2010s’, giving an area reduction of 84 km2, or 10%. The sample covers many of the largest glaciers in Norway, and they had an overall change in surface elevation of −15.5 m for the ~50 year period. Converted to a geodetic mass balance this gives a mean mass balance of −0.27 ± 0.05 m w.e. a−1. |
format |
Article in Journal/Newspaper |
author |
Liss M. Andreassen Hallgeir Elvehøy Bjarne Kjøllmoen Joaquín M. C. Belart |
author_facet |
Liss M. Andreassen Hallgeir Elvehøy Bjarne Kjøllmoen Joaquín M. C. Belart |
author_sort |
Liss M. Andreassen |
title |
Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
title_short |
Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
title_full |
Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
title_fullStr |
Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
title_full_unstemmed |
Glacier change in Norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
title_sort |
glacier change in norway since the 1960s – an overview of mass balance, area, length and surface elevation changes |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/jog.2020.10 https://doaj.org/article/1c4af901c1b74535adb1dc166f03c97e |
long_lat |
ENVELOPE(21.721,21.721,70.140,70.140) |
geographic |
Norway Langfjordjøkelen |
geographic_facet |
Norway Langfjordjøkelen |
genre |
Finnmark glacier Journal of Glaciology Lyngen Finnmark Lyngen Troms |
genre_facet |
Finnmark glacier Journal of Glaciology Lyngen Finnmark Lyngen Troms |
op_source |
Journal of Glaciology, Vol 66, Pp 313-328 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143020000106/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.10 0022-1430 1727-5652 https://doaj.org/article/1c4af901c1b74535adb1dc166f03c97e |
op_doi |
https://doi.org/10.1017/jog.2020.10 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
256 |
container_start_page |
313 |
op_container_end_page |
328 |
_version_ |
1765999536631709696 |