A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment
Glaciers are widely recognized as key indicators of climate change, and their meltwater plays an important role in hydropower production in Norway. Since the last glacier inventory was compiled in northern Norway in the 1970s, marked fluctuations in glacier length and mass balance have been reported...
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International Glaciological Society
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ftunivzuerich:oai:www.zora.uzh.ch:28451 2024-09-30T14:35:25+00:00 A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment Paul, F Andreassen, L M 2009 application/pdf https://www.zora.uzh.ch/id/eprint/28451/ https://www.zora.uzh.ch/id/eprint/28451/1/Paul_Andreassen_A_new_glacier_inventory_2009.pdf https://doi.org/10.5167/uzh-28451 https://doi.org/10.3189/002214309789471003 eng eng International Glaciological Society https://www.zora.uzh.ch/id/eprint/28451/1/Paul_Andreassen_A_new_glacier_inventory_2009.pdf doi:10.5167/uzh-28451 doi:10.3189/002214309789471003 urn:issn:0022-1430 info:eu-repo/semantics/openAccess Paul, F; Andreassen, L M (2009). A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment. Journal of Glaciology, 55(192):607-618. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article 2009 ftunivzuerich https://doi.org/10.5167/uzh-2845110.3189/002214309789471003 2024-09-04T00:39:05Z Glaciers are widely recognized as key indicators of climate change, and their meltwater plays an important role in hydropower production in Norway. Since the last glacier inventory was compiled in northern Norway in the 1970s, marked fluctuations in glacier length and mass balance have been reported for individual glaciers, and the current overall glacier state is thus not well known. Within the framework of the Global Land Ice Measurements from Space (GLIMS) initiative, we have created a new inventory for 489 glaciers in the Svartisen region, northern Norway, using a Landsat Enhanced Thematic Mapper Plus (ETM+) satellite scene from 7 September 1999 and automated multispectral glacier mapping (thresholded band ratios). In addition, visual inspection and correction of the generated glacier outlines has been applied. Adverse snow conditions and uncertain drainage divides made glacier mapping challenging in some regions of the study site. Glacier outlines from 1968, as digitized from a topographic map, were used for a quantitative change assessment for a selection of 300 glaciers. The overall area change of this sample from 1968 to 1999 was close to zero, but with a strongly increasing scatter towards smaller glaciers, large area gains (>50%) for small glaciers (<1km2), and an unexpected stronger relative area loss towards the wetter coast. The overall size changes are small (<1%) for the three largest ice masses in the study region (Vestisen, Østisen and Bla˚mannsisen). Article in Journal/Newspaper glacier Journal of Glaciology Northern Norway Svartisen University of Zurich (UZH): ZORA (Zurich Open Repository and Archive New Glacier ENVELOPE(162.400,162.400,-77.033,-77.033) Norway Svartisen ENVELOPE(13.698,13.698,66.642,66.642) |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel |
spellingShingle |
Institute of Geography 910 Geography & travel Paul, F Andreassen, L M A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
Glaciers are widely recognized as key indicators of climate change, and their meltwater plays an important role in hydropower production in Norway. Since the last glacier inventory was compiled in northern Norway in the 1970s, marked fluctuations in glacier length and mass balance have been reported for individual glaciers, and the current overall glacier state is thus not well known. Within the framework of the Global Land Ice Measurements from Space (GLIMS) initiative, we have created a new inventory for 489 glaciers in the Svartisen region, northern Norway, using a Landsat Enhanced Thematic Mapper Plus (ETM+) satellite scene from 7 September 1999 and automated multispectral glacier mapping (thresholded band ratios). In addition, visual inspection and correction of the generated glacier outlines has been applied. Adverse snow conditions and uncertain drainage divides made glacier mapping challenging in some regions of the study site. Glacier outlines from 1968, as digitized from a topographic map, were used for a quantitative change assessment for a selection of 300 glaciers. The overall area change of this sample from 1968 to 1999 was close to zero, but with a strongly increasing scatter towards smaller glaciers, large area gains (>50%) for small glaciers (<1km2), and an unexpected stronger relative area loss towards the wetter coast. The overall size changes are small (<1%) for the three largest ice masses in the study region (Vestisen, Østisen and Bla˚mannsisen). |
format |
Article in Journal/Newspaper |
author |
Paul, F Andreassen, L M |
author_facet |
Paul, F Andreassen, L M |
author_sort |
Paul, F |
title |
A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
title_short |
A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
title_full |
A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
title_fullStr |
A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
title_full_unstemmed |
A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment |
title_sort |
new glacier inventory for the svartisen region, norway, from landsat etm+ data: challenges and change assessment |
publisher |
International Glaciological Society |
publishDate |
2009 |
url |
https://www.zora.uzh.ch/id/eprint/28451/ https://www.zora.uzh.ch/id/eprint/28451/1/Paul_Andreassen_A_new_glacier_inventory_2009.pdf https://doi.org/10.5167/uzh-28451 https://doi.org/10.3189/002214309789471003 |
long_lat |
ENVELOPE(162.400,162.400,-77.033,-77.033) ENVELOPE(13.698,13.698,66.642,66.642) |
geographic |
New Glacier Norway Svartisen |
geographic_facet |
New Glacier Norway Svartisen |
genre |
glacier Journal of Glaciology Northern Norway Svartisen |
genre_facet |
glacier Journal of Glaciology Northern Norway Svartisen |
op_source |
Paul, F; Andreassen, L M (2009). A new glacier inventory for the Svartisen region, Norway, from Landsat ETM+ data: challenges and change assessment. Journal of Glaciology, 55(192):607-618. |
op_relation |
https://www.zora.uzh.ch/id/eprint/28451/1/Paul_Andreassen_A_new_glacier_inventory_2009.pdf doi:10.5167/uzh-28451 doi:10.3189/002214309789471003 urn:issn:0022-1430 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-2845110.3189/002214309789471003 |
_version_ |
1811638693545377792 |