Glacier area and length changes in Norway from repeat inventories
In this study, we assess glacier area and length changes in mainland Norway from repeat Landsat TM/ETM+-derived inventories and digitized topographic maps. The multi-temporal glacier inventory consists of glacier outlines from three time ranges: 1947 to 1985 (GIn50), 1988 to 1997 (GI1990), and 1999...
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National Snow and Ice Data Center
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ftoslouniv:oai:www.duo.uio.no:10852/43551 2023-05-15T16:21:50+02:00 Glacier area and length changes in Norway from repeat inventories Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian 2014-06-11T14:18:57Z http://hdl.handle.net/10852/43551 http://urn.nb.no/URN:NBN:no-47918 https://doi.org/10.5194/tc-8-1885-2014 EN eng National Snow and Ice Data Center Winsvold, Solveig Havstad (2017) Mapping glaciers using time-series of remote sensing data. Doctoral thesis. http://urn.nb.no/URN:NBN:no-58403 http://urn.nb.no/URN:NBN:no-58403 http://urn.nb.no/URN:NBN:no-47918 Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian . Glacier area and length changes in Norway from repeat inventories. The Cryosphere. 2014, 8(5), 1885-1903 http://hdl.handle.net/10852/43551 1137502 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The Cryosphere&rft.volume=8&rft.spage=1885&rft.date=2014 The Cryosphere 8 1885 1903 http://dx.doi.org/10.5194/tc-8-1885-2014 URN:NBN:no-47918 Fulltext https://www.duo.uio.no/bitstream/handle/10852/43551/2/tc-8-1885-2014-winsvold.pdf Attribution 3.0 Unported http://creativecommons.org/licenses/by/3.0/ CC-BY 1994-0416 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2014 ftoslouniv https://doi.org/10.5194/tc-8-1885-2014 2020-06-21T08:48:17Z In this study, we assess glacier area and length changes in mainland Norway from repeat Landsat TM/ETM+-derived inventories and digitized topographic maps. The multi-temporal glacier inventory consists of glacier outlines from three time ranges: 1947 to 1985 (GIn50), 1988 to 1997 (GI1990), and 1999 to 2006 (GI2000). For the northernmost regions, we include an additional inventory (GI1900) based on historic maps surveyed between 1895 and 1907. Area and length changes are assessed per glacier unit, 36 subregions, and for three main parts of Norway: southern, central, and northern. The results show a decrease in the glacierized area from 2994 km2 in GIn50 to 2668 km2 in GI2000 (total 2722 glacier units), corresponding to an area reduction of −326 km2, or −11% of the initial GIn50 area. The average length change for the full epoch (within GIn50 and GI2000) is −240 m. Overall, the comparison reveals both area and length reductions as general patterns, even though some glaciers have advanced. The three northernmost subregions show the highest retreat rates, whereas the central part of Norway shows the lowest change rates. Glacier area and length changes indicate that glaciers in maritime areas in southern Norway have retreated more than glaciers in the interior, and glaciers in the north have retreated more than southern glaciers. These observed spatial trends in glacier change are related to a combination of several factors such as glacier geometry, elevation, and continentality, especially in southern Norway. Article in Journal/Newspaper glacier The Cryosphere Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Norway The Cryosphere 8 5 1885 1903 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
In this study, we assess glacier area and length changes in mainland Norway from repeat Landsat TM/ETM+-derived inventories and digitized topographic maps. The multi-temporal glacier inventory consists of glacier outlines from three time ranges: 1947 to 1985 (GIn50), 1988 to 1997 (GI1990), and 1999 to 2006 (GI2000). For the northernmost regions, we include an additional inventory (GI1900) based on historic maps surveyed between 1895 and 1907. Area and length changes are assessed per glacier unit, 36 subregions, and for three main parts of Norway: southern, central, and northern. The results show a decrease in the glacierized area from 2994 km2 in GIn50 to 2668 km2 in GI2000 (total 2722 glacier units), corresponding to an area reduction of −326 km2, or −11% of the initial GIn50 area. The average length change for the full epoch (within GIn50 and GI2000) is −240 m. Overall, the comparison reveals both area and length reductions as general patterns, even though some glaciers have advanced. The three northernmost subregions show the highest retreat rates, whereas the central part of Norway shows the lowest change rates. Glacier area and length changes indicate that glaciers in maritime areas in southern Norway have retreated more than glaciers in the interior, and glaciers in the north have retreated more than southern glaciers. These observed spatial trends in glacier change are related to a combination of several factors such as glacier geometry, elevation, and continentality, especially in southern Norway. |
format |
Article in Journal/Newspaper |
author |
Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian |
spellingShingle |
Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian Glacier area and length changes in Norway from repeat inventories |
author_facet |
Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian |
author_sort |
Winsvold, Solveig Havstad |
title |
Glacier area and length changes in Norway from repeat inventories |
title_short |
Glacier area and length changes in Norway from repeat inventories |
title_full |
Glacier area and length changes in Norway from repeat inventories |
title_fullStr |
Glacier area and length changes in Norway from repeat inventories |
title_full_unstemmed |
Glacier area and length changes in Norway from repeat inventories |
title_sort |
glacier area and length changes in norway from repeat inventories |
publisher |
National Snow and Ice Data Center |
publishDate |
2014 |
url |
http://hdl.handle.net/10852/43551 http://urn.nb.no/URN:NBN:no-47918 https://doi.org/10.5194/tc-8-1885-2014 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
glacier The Cryosphere |
genre_facet |
glacier The Cryosphere |
op_source |
1994-0416 |
op_relation |
Winsvold, Solveig Havstad (2017) Mapping glaciers using time-series of remote sensing data. Doctoral thesis. http://urn.nb.no/URN:NBN:no-58403 http://urn.nb.no/URN:NBN:no-58403 http://urn.nb.no/URN:NBN:no-47918 Winsvold, Solveig Havstad Andreassen, Liss Marie Kienholz, Christian . Glacier area and length changes in Norway from repeat inventories. The Cryosphere. 2014, 8(5), 1885-1903 http://hdl.handle.net/10852/43551 1137502 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The Cryosphere&rft.volume=8&rft.spage=1885&rft.date=2014 The Cryosphere 8 1885 1903 http://dx.doi.org/10.5194/tc-8-1885-2014 URN:NBN:no-47918 Fulltext https://www.duo.uio.no/bitstream/handle/10852/43551/2/tc-8-1885-2014-winsvold.pdf |
op_rights |
Attribution 3.0 Unported http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-8-1885-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1885 |
op_container_end_page |
1903 |
_version_ |
1766009807471378432 |