A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications
Despite its large area covered by glaciers and ice caps, detailed glacier inventory data are not yet available for most parts of Baffin Island, Canada. Automated classification of satellite data could help to overcome the data gaps. Along-track stereo sensors allow the derivation of a digital elevat...
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International Glaciological Society
2009
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ftunivzuerich:oai:www.zora.uzh.ch:28531 2024-06-23T07:45:37+00:00 A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications Paul, F Svoboda, F 2009 application/pdf https://www.zora.uzh.ch/id/eprint/28531/ https://www.zora.uzh.ch/id/eprint/28531/8/Paul_Svoboda_A_new_glacier_Baffin_2009.pdf https://doi.org/10.5167/uzh-28531 https://doi.org/10.3189/172756410790595921 eng eng International Glaciological Society https://www.zora.uzh.ch/id/eprint/28531/8/Paul_Svoboda_A_new_glacier_Baffin_2009.pdf doi:10.5167/uzh-28531 doi:10.3189/172756410790595921 urn:issn:0260-3055 info:eu-repo/semantics/openAccess Paul, F; Svoboda, F (2009). A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications. Annals of Glaciology, 50(53):22-31. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article 2009 ftunivzuerich https://doi.org/10.5167/uzh-2853110.3189/172756410790595921 2024-06-05T00:20:45Z Despite its large area covered by glaciers and ice caps, detailed glacier inventory data are not yet available for most parts of Baffin Island, Canada. Automated classification of satellite data could help to overcome the data gaps. Along-track stereo sensors allow the derivation of a digital elevation model (DEM) and glacier outlines from the same point in time, and are particularly useful for this task. While part I of this study describes the remote-sensing methods, in part II we present an analysis of the derived glacier inventory data for 662 glaciers and an application to glacier volume and volume-change calculations. Among other things, the analysis reveals a mean glacier elevation of 990 m, with a weak dependence on aspect and a close agreement of the arithmetic mean with the statistical mean elevation as derived from the DEM. A strong scatter of mean slope is observed for glaciers <1 km2, and the derived glacier thickness differs by a factor of two for glaciers of the same size. For the period from about 1920 to 2000 the relative area change is –12.5% (264 glaciers), with a strong dependence on glacier size. Mean mass loss as derived from volume changes is about –0.15mw.e. a–1 Article in Journal/Newspaper Annals of Glaciology Baffin Island Baffin glacier* University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Baffin Island Canada New Glacier ENVELOPE(162.400,162.400,-77.033,-77.033) |
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 Svoboda, F A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
Despite its large area covered by glaciers and ice caps, detailed glacier inventory data are not yet available for most parts of Baffin Island, Canada. Automated classification of satellite data could help to overcome the data gaps. Along-track stereo sensors allow the derivation of a digital elevation model (DEM) and glacier outlines from the same point in time, and are particularly useful for this task. While part I of this study describes the remote-sensing methods, in part II we present an analysis of the derived glacier inventory data for 662 glaciers and an application to glacier volume and volume-change calculations. Among other things, the analysis reveals a mean glacier elevation of 990 m, with a weak dependence on aspect and a close agreement of the arithmetic mean with the statistical mean elevation as derived from the DEM. A strong scatter of mean slope is observed for glaciers <1 km2, and the derived glacier thickness differs by a factor of two for glaciers of the same size. For the period from about 1920 to 2000 the relative area change is –12.5% (264 glaciers), with a strong dependence on glacier size. Mean mass loss as derived from volume changes is about –0.15mw.e. a–1 |
format |
Article in Journal/Newspaper |
author |
Paul, F Svoboda, F |
author_facet |
Paul, F Svoboda, F |
author_sort |
Paul, F |
title |
A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
title_short |
A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
title_full |
A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
title_fullStr |
A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
title_full_unstemmed |
A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications |
title_sort |
new glacier inventory on southern baffin island, canada, from aster data: ii. data analysis, glacier change and applications |
publisher |
International Glaciological Society |
publishDate |
2009 |
url |
https://www.zora.uzh.ch/id/eprint/28531/ https://www.zora.uzh.ch/id/eprint/28531/8/Paul_Svoboda_A_new_glacier_Baffin_2009.pdf https://doi.org/10.5167/uzh-28531 https://doi.org/10.3189/172756410790595921 |
long_lat |
ENVELOPE(162.400,162.400,-77.033,-77.033) |
geographic |
Baffin Island Canada New Glacier |
geographic_facet |
Baffin Island Canada New Glacier |
genre |
Annals of Glaciology Baffin Island Baffin glacier* |
genre_facet |
Annals of Glaciology Baffin Island Baffin glacier* |
op_source |
Paul, F; Svoboda, F (2009). A new glacier inventory on southern Baffin Island, Canada, from ASTER data: II. Data analysis, glacier change and applications. Annals of Glaciology, 50(53):22-31. |
op_relation |
https://www.zora.uzh.ch/id/eprint/28531/8/Paul_Svoboda_A_new_glacier_Baffin_2009.pdf doi:10.5167/uzh-28531 doi:10.3189/172756410790595921 urn:issn:0260-3055 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-2853110.3189/172756410790595921 |
_version_ |
1802641571993092096 |