Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results
Due to their sensitive reaction to changes in climatic conditions, glaciers have been selected as an essential climate variable (ECV). Although a large amount of ice is located in the Himalayas, this region is yet only sparsely represented in global glacier databases. Accordingly, a sound and compre...
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ftunivzuerich:oai:www.zora.uzh.ch:64590 2024-09-15T18:11:42+00:00 Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results Frey, Holger Paul, Frank Strozzi, Tazio 2012 application/pdf https://www.zora.uzh.ch/id/eprint/64590/ https://www.zora.uzh.ch/id/eprint/64590/1/2012_FreyH_Frey_etal_RSE_2012_ZoraVersion.pdf https://www.zora.uzh.ch/id/eprint/64590/2/2012_FreyH_frey_etal_RSE_2012.pdf https://doi.org/10.5167/uzh-64590 https://doi.org/10.1016/j.rse.2012.06.020 eng eng Elsevier https://www.zora.uzh.ch/id/eprint/64590/1/2012_FreyH_Frey_etal_RSE_2012_ZoraVersion.pdf https://www.zora.uzh.ch/id/eprint/64590/2/2012_FreyH_frey_etal_RSE_2012.pdf doi:10.5167/uzh-64590 doi:10.1016/j.rse.2012.06.020 urn:issn:0034-4257 info:eu-repo/semantics/openAccess Frey, Holger; Paul, Frank; Strozzi, Tazio (2012). Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results. Remote Sensing of Environment, 124:832-843. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/publishedVersion 2012 ftunivzuerich https://doi.org/10.5167/uzh-6459010.1016/j.rse.2012.06.020 2024-08-14T00:23:55Z Due to their sensitive reaction to changes in climatic conditions, glaciers have been selected as an essential climate variable (ECV). Although a large amount of ice is located in the Himalayas, this region is yet only sparsely represented in global glacier databases. Accordingly, a sound and comprehensive change assessment or determination of water resources was not yet possible. In this study, we present a new glacier inventory for the western Himalayas, compiled from Landsat ETM+ scenes acquired between 2000 and 2002, coherence images from ALOS PALSAR image pairs, the SRTM digital elevation model (DEM) and the ASTER Global DEM (GDEM). Several specific challenges for glacier mapping were found in this region and addressed. They are related to debris cover, orographic clouds, locally variable snow conditions, and creeping permafrost features in cold-dry regions. Additional to seven topographic parameters that are obtained from the ASTER GDEM for each glacier, we also determined the relative amount of debris cover on the glacier surface. The inventory contains 11,400 glaciers larger than 0.02 km2, which cover a total area of 9,310 km2. Analysis of the inventory data revealed characteristic patterns of mean glacier elevation and relative debris cover amounts that might be related to the governing climatic conditions. The full dataset will be freely available in the GLIMS glacier database to foster further analyses and modeling of the glaciers in this region. Article in Journal/Newspaper Ice permafrost University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
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 Frey, Holger Paul, Frank Strozzi, Tazio Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
Due to their sensitive reaction to changes in climatic conditions, glaciers have been selected as an essential climate variable (ECV). Although a large amount of ice is located in the Himalayas, this region is yet only sparsely represented in global glacier databases. Accordingly, a sound and comprehensive change assessment or determination of water resources was not yet possible. In this study, we present a new glacier inventory for the western Himalayas, compiled from Landsat ETM+ scenes acquired between 2000 and 2002, coherence images from ALOS PALSAR image pairs, the SRTM digital elevation model (DEM) and the ASTER Global DEM (GDEM). Several specific challenges for glacier mapping were found in this region and addressed. They are related to debris cover, orographic clouds, locally variable snow conditions, and creeping permafrost features in cold-dry regions. Additional to seven topographic parameters that are obtained from the ASTER GDEM for each glacier, we also determined the relative amount of debris cover on the glacier surface. The inventory contains 11,400 glaciers larger than 0.02 km2, which cover a total area of 9,310 km2. Analysis of the inventory data revealed characteristic patterns of mean glacier elevation and relative debris cover amounts that might be related to the governing climatic conditions. The full dataset will be freely available in the GLIMS glacier database to foster further analyses and modeling of the glaciers in this region. |
format |
Article in Journal/Newspaper |
author |
Frey, Holger Paul, Frank Strozzi, Tazio |
author_facet |
Frey, Holger Paul, Frank Strozzi, Tazio |
author_sort |
Frey, Holger |
title |
Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
title_short |
Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
title_full |
Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
title_fullStr |
Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
title_full_unstemmed |
Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results |
title_sort |
compilation of a glacier inventory for the western himalayas from satellite data: methods, challenges, and results |
publisher |
Elsevier |
publishDate |
2012 |
url |
https://www.zora.uzh.ch/id/eprint/64590/ https://www.zora.uzh.ch/id/eprint/64590/1/2012_FreyH_Frey_etal_RSE_2012_ZoraVersion.pdf https://www.zora.uzh.ch/id/eprint/64590/2/2012_FreyH_frey_etal_RSE_2012.pdf https://doi.org/10.5167/uzh-64590 https://doi.org/10.1016/j.rse.2012.06.020 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Frey, Holger; Paul, Frank; Strozzi, Tazio (2012). Compilation of a glacier inventory for the western Himalayas from satellite data: methods, challenges, and results. Remote Sensing of Environment, 124:832-843. |
op_relation |
https://www.zora.uzh.ch/id/eprint/64590/1/2012_FreyH_Frey_etal_RSE_2012_ZoraVersion.pdf https://www.zora.uzh.ch/id/eprint/64590/2/2012_FreyH_frey_etal_RSE_2012.pdf doi:10.5167/uzh-64590 doi:10.1016/j.rse.2012.06.020 urn:issn:0034-4257 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-6459010.1016/j.rse.2012.06.020 |
_version_ |
1810449274211663872 |