Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models
Greenland’s peripheral glaciers and ice caps are key indicators of climate change in the Arctic, but quantitative observational data of their recent evolution are sparse. Three recently released high-resolution digital elevation models (DEMs)—AeroDEM (based on images from 1978 to 1987), ArcticDEM (2...
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Online Access: | https://www.zora.uzh.ch/id/eprint/159601/ https://www.zora.uzh.ch/id/eprint/159601/1/2018_Albedyll_etal_AAAR_2018.pdf https://doi.org/10.5167/uzh-159601 https://doi.org/10.1080/15230430.2018.1523638 |
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ftunivzuerich:oai:www.zora.uzh.ch:159601 2024-06-23T07:48:03+00:00 Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models von Albedyll, Luisa Machguth, Horst Nussbaumer, Samuel U Zemp, Michael 2018-01-01 application/pdf https://www.zora.uzh.ch/id/eprint/159601/ https://www.zora.uzh.ch/id/eprint/159601/1/2018_Albedyll_etal_AAAR_2018.pdf https://doi.org/10.5167/uzh-159601 https://doi.org/10.1080/15230430.2018.1523638 eng eng Taylor & Francis https://www.zora.uzh.ch/id/eprint/159601/1/2018_Albedyll_etal_AAAR_2018.pdf doi:10.5167/uzh-159601 doi:10.1080/15230430.2018.1523638 urn:issn:1523-0430 info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ von Albedyll, Luisa; Machguth, Horst; Nussbaumer, Samuel U; Zemp, Michael (2018). Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models. Arctic, Antarctic, and Alpine Research, 50(1):e1523638. Institute of Geography 910 Geography & travel Earth-Surface Processes Global and Planetary Change Ecology Evolution Behavior and Systematics Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftunivzuerich https://doi.org/10.5167/uzh-15960110.1080/15230430.2018.1523638 2024-05-29T00:53:22Z Greenland’s peripheral glaciers and ice caps are key indicators of climate change in the Arctic, but quantitative observational data of their recent evolution are sparse. Three recently released high-resolution digital elevation models (DEMs)—AeroDEM (based on images from 1978 to 1987), ArcticDEM (2012–2015), and TanDEM-X (2010–2014)—provide the possibility to calculate elevation changes spanning almost four decades along the margins of the Greenland Ice Sheet. This study explores the potential of these DEMs by calculating elevation changes for the Holm Land Ice Cap (865 km2), northeast Greenland. Co-registration indicated no significant shifts between the DEMs but we encountered localized vertical offsets in AeroDEM. The data quality of ArcticDEM and TanDEM-X is high, but AeroDEM suffers from 19 percent low-quality data, which were treated as data voids. Applying two approaches to fill the data voids in the difference grid between ArcticDEM and AeroDEM, mean surface-elevation change over the Holm Land Ice Cap and a period of approximately 35 y is in the range of −8.30 ±0.30 m. Comparing ArcticDEM and TanDEM-X reveals a glacier elevation difference of 2.54 m, which may be partly related to the different retrieval techniques (optical and SAR). Overall, the DEMs have good potential for large-scale and long-term assessment of geodetic glacier mass balance. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Climate change glacier Greenland Holm land Ice cap Ice Sheet University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Arctic Geodetic Glacier ENVELOPE(163.800,163.800,-77.750,-77.750) Greenland Holm Land ENVELOPE(-18.000,-18.000,80.367,80.367) |
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 Earth-Surface Processes Global and Planetary Change Ecology Evolution Behavior and Systematics |
spellingShingle |
Institute of Geography 910 Geography & travel Earth-Surface Processes Global and Planetary Change Ecology Evolution Behavior and Systematics von Albedyll, Luisa Machguth, Horst Nussbaumer, Samuel U Zemp, Michael Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
topic_facet |
Institute of Geography 910 Geography & travel Earth-Surface Processes Global and Planetary Change Ecology Evolution Behavior and Systematics |
description |
Greenland’s peripheral glaciers and ice caps are key indicators of climate change in the Arctic, but quantitative observational data of their recent evolution are sparse. Three recently released high-resolution digital elevation models (DEMs)—AeroDEM (based on images from 1978 to 1987), ArcticDEM (2012–2015), and TanDEM-X (2010–2014)—provide the possibility to calculate elevation changes spanning almost four decades along the margins of the Greenland Ice Sheet. This study explores the potential of these DEMs by calculating elevation changes for the Holm Land Ice Cap (865 km2), northeast Greenland. Co-registration indicated no significant shifts between the DEMs but we encountered localized vertical offsets in AeroDEM. The data quality of ArcticDEM and TanDEM-X is high, but AeroDEM suffers from 19 percent low-quality data, which were treated as data voids. Applying two approaches to fill the data voids in the difference grid between ArcticDEM and AeroDEM, mean surface-elevation change over the Holm Land Ice Cap and a period of approximately 35 y is in the range of −8.30 ±0.30 m. Comparing ArcticDEM and TanDEM-X reveals a glacier elevation difference of 2.54 m, which may be partly related to the different retrieval techniques (optical and SAR). Overall, the DEMs have good potential for large-scale and long-term assessment of geodetic glacier mass balance. |
format |
Article in Journal/Newspaper |
author |
von Albedyll, Luisa Machguth, Horst Nussbaumer, Samuel U Zemp, Michael |
author_facet |
von Albedyll, Luisa Machguth, Horst Nussbaumer, Samuel U Zemp, Michael |
author_sort |
von Albedyll, Luisa |
title |
Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
title_short |
Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
title_full |
Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
title_fullStr |
Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
title_full_unstemmed |
Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
title_sort |
elevation changes of the holm land ice cap, northeast greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models |
publisher |
Taylor & Francis |
publishDate |
2018 |
url |
https://www.zora.uzh.ch/id/eprint/159601/ https://www.zora.uzh.ch/id/eprint/159601/1/2018_Albedyll_etal_AAAR_2018.pdf https://doi.org/10.5167/uzh-159601 https://doi.org/10.1080/15230430.2018.1523638 |
long_lat |
ENVELOPE(163.800,163.800,-77.750,-77.750) ENVELOPE(-18.000,-18.000,80.367,80.367) |
geographic |
Arctic Geodetic Glacier Greenland Holm Land |
geographic_facet |
Arctic Geodetic Glacier Greenland Holm Land |
genre |
Antarctic and Alpine Research Arctic Arctic Climate change glacier Greenland Holm land Ice cap Ice Sheet |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Climate change glacier Greenland Holm land Ice cap Ice Sheet |
op_source |
von Albedyll, Luisa; Machguth, Horst; Nussbaumer, Samuel U; Zemp, Michael (2018). Elevation changes of the Holm Land Ice Cap, northeast Greenland, from 1978 to 2012–2015, derived from high-resolution digital elevation models. Arctic, Antarctic, and Alpine Research, 50(1):e1523638. |
op_relation |
https://www.zora.uzh.ch/id/eprint/159601/1/2018_Albedyll_etal_AAAR_2018.pdf doi:10.5167/uzh-159601 doi:10.1080/15230430.2018.1523638 urn:issn:1523-0430 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5167/uzh-15960110.1080/15230430.2018.1523638 |
_version_ |
1802638446169161728 |