Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland
Most Icelandic glaciers show high-accumulation rates during winter and strong surface melting during summer. Although it is difficult to establish and maintain mass-balance programs on these glaciers, mass-balance series do exist for several of the ice caps (Bjornsson and others, 2013). We make use...
Published in: | Journal of Glaciology |
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Ludwig-Maximilians-Universität München
2017
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Online Access: | https://epub.ub.uni-muenchen.de/55958/1/Mayer-2016-Local-surface-mass-balance-reconstr.pdf https://epub.ub.uni-muenchen.de/55958/ http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-55958-7 https://doi.org/10.1017/jog.2016.119 |
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ftmuenchenepub:oai:epub.ub.uni-muenchen.de:55958 2023-05-15T16:21:44+02:00 Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Voelksen, Christof Minet, Christian Münzer, Ulrich 2017-01-01 application/pdf https://epub.ub.uni-muenchen.de/55958/1/Mayer-2016-Local-surface-mass-balance-reconstr.pdf https://epub.ub.uni-muenchen.de/55958/ http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-55958-7 https://doi.org/10.1017/jog.2016.119 eng eng Ludwig-Maximilians-Universität München Mayer, Christoph; Jaenicke, Julia; Lambrecht, Astrid; Braun, Ludwig; Voelksen, Christof; Minet, Christian; Münzer, Ulrich (2017): Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland. In: Journal of Glaciology, Vol. 63, Nr. 237: S. 79-87 [PDF, 653kB] https://epub.ub.uni-muenchen.de/55958/1/Mayer-2016-Local-surface-mass-balance-reconstr.pdf http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-55958-7 https://epub.ub.uni-muenchen.de/55958/ doi:10.1017/jog.2016.119 Journal of Glaciology Department für Geo- und Umweltwissenschaften ddc:550 doc-type:article Zeitschriftenartikel NonPeerReviewed 2017 ftmuenchenepub https://doi.org/10.1017/jog.2016.119 2022-04-25T12:47:55Z Most Icelandic glaciers show high-accumulation rates during winter and strong surface melting during summer. Although it is difficult to establish and maintain mass-balance programs on these glaciers, mass-balance series do exist for several of the ice caps (Bjornsson and others, 2013). We make use of the frequent volcanic eruptions in Iceland, which cause widespread internal tephra layers in the ice caps, to reconstruct the surface mass balance (SMB) in the ablation zone. This method requires information about surface geometry and ice velocity, derived from remote-sensing information. In addition, the emergence angle of the tephra layer needs to be known. As a proof-of concept, we utilize a prominent tephra layer of the Myrdalsjokull Ice Cap to infer local SMB estimates in the ablation area back to 1988. Using tephra-layer outcrop locations across the glacier at different points in time it is possible to determine local mass changes (loss and redistribution) for a large part of the ablation zone, without the use of historic elevation models, which often are not available. Article in Journal/Newspaper glacier Ice cap Iceland Journal of Glaciology Mýrdalsjökull Open Access LMU (Ludwig-Maximilians-University Munich) Mýrdalsjökull ENVELOPE(-19.174,-19.174,63.643,63.643) Journal of Glaciology 63 237 79 87 |
institution |
Open Polar |
collection |
Open Access LMU (Ludwig-Maximilians-University Munich) |
op_collection_id |
ftmuenchenepub |
language |
English |
topic |
Department für Geo- und Umweltwissenschaften ddc:550 |
spellingShingle |
Department für Geo- und Umweltwissenschaften ddc:550 Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Voelksen, Christof Minet, Christian Münzer, Ulrich Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
topic_facet |
Department für Geo- und Umweltwissenschaften ddc:550 |
description |
Most Icelandic glaciers show high-accumulation rates during winter and strong surface melting during summer. Although it is difficult to establish and maintain mass-balance programs on these glaciers, mass-balance series do exist for several of the ice caps (Bjornsson and others, 2013). We make use of the frequent volcanic eruptions in Iceland, which cause widespread internal tephra layers in the ice caps, to reconstruct the surface mass balance (SMB) in the ablation zone. This method requires information about surface geometry and ice velocity, derived from remote-sensing information. In addition, the emergence angle of the tephra layer needs to be known. As a proof-of concept, we utilize a prominent tephra layer of the Myrdalsjokull Ice Cap to infer local SMB estimates in the ablation area back to 1988. Using tephra-layer outcrop locations across the glacier at different points in time it is possible to determine local mass changes (loss and redistribution) for a large part of the ablation zone, without the use of historic elevation models, which often are not available. |
format |
Article in Journal/Newspaper |
author |
Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Voelksen, Christof Minet, Christian Münzer, Ulrich |
author_facet |
Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Voelksen, Christof Minet, Christian Münzer, Ulrich |
author_sort |
Mayer, Christoph |
title |
Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
title_short |
Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
title_full |
Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
title_fullStr |
Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
title_full_unstemmed |
Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland |
title_sort |
local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of mýrdalsjökull, iceland |
publisher |
Ludwig-Maximilians-Universität München |
publishDate |
2017 |
url |
https://epub.ub.uni-muenchen.de/55958/1/Mayer-2016-Local-surface-mass-balance-reconstr.pdf https://epub.ub.uni-muenchen.de/55958/ http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-55958-7 https://doi.org/10.1017/jog.2016.119 |
long_lat |
ENVELOPE(-19.174,-19.174,63.643,63.643) |
geographic |
Mýrdalsjökull |
geographic_facet |
Mýrdalsjökull |
genre |
glacier Ice cap Iceland Journal of Glaciology Mýrdalsjökull |
genre_facet |
glacier Ice cap Iceland Journal of Glaciology Mýrdalsjökull |
op_source |
Journal of Glaciology |
op_relation |
Mayer, Christoph; Jaenicke, Julia; Lambrecht, Astrid; Braun, Ludwig; Voelksen, Christof; Minet, Christian; Münzer, Ulrich (2017): Local surface mass-balance reconstruction from a tephra layer - a case study on the northern slope of Mýrdalsjökull, Iceland. In: Journal of Glaciology, Vol. 63, Nr. 237: S. 79-87 [PDF, 653kB] https://epub.ub.uni-muenchen.de/55958/1/Mayer-2016-Local-surface-mass-balance-reconstr.pdf http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-55958-7 https://epub.ub.uni-muenchen.de/55958/ doi:10.1017/jog.2016.119 |
op_doi |
https://doi.org/10.1017/jog.2016.119 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
237 |
container_start_page |
79 |
op_container_end_page |
87 |
_version_ |
1766009721397968896 |