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 (Björnsson and others, 2013). We make use...
Published in: | Journal of Glaciology |
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Cambridge University Press
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ftdlr:oai:elib.dlr.de:107440 2023-05-15T16:21:43+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 Völksen, Christof Minet, Christian Münzer, Ulrich 2016-10-20 application/pdf https://elib.dlr.de/107440/ https://elib.dlr.de/107440/1/local-surface-mass-balance-reconstruction-from-a-tephra-layer-a-case-study-on-the-northern-slope-of-myrdalsjokull-iceland.pdf https://www.cambridge.org/core/journals/journal-of-glaciology en eng Cambridge University Press https://elib.dlr.de/107440/1/local-surface-mass-balance-reconstruction-from-a-tephra-layer-a-case-study-on-the-northern-slope-of-myrdalsjokull-iceland.pdf Mayer, Christoph und Jaenicke, Julia und Lambrecht, Astrid und Braun, Ludwig und Völksen, Christof und Minet, Christian und Münzer, Ulrich (2016) Local surface mass-balance reconstruction from a tephra layer – a case study on the northern slope of Mýrdalsjökull, Iceland. Journal of Glaciology, 235, Seiten 1-9. Cambridge University Press. doi:10.1017/jog.2016.119 <https://doi.org/10.1017/jog.2016.119>. ISSN 0022-1430. cc_by_nc_nd CC-BY-NC-ND SAR-Signalverarbeitung Zeitschriftenbeitrag PeerReviewed 2016 ftdlr https://doi.org/10.1017/jog.2016.119 2021-11-22T00:09:19Z 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 (Björnsson 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 Mýrdalsjökull 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. Other Non-Article Part of Journal/Newspaper glacier Ice cap Iceland Journal of Glaciology Mýrdalsjökull German Aerospace Center: elib - DLR electronic library Mýrdalsjökull ENVELOPE(-19.174,-19.174,63.643,63.643) Journal of Glaciology 63 237 79 87 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
SAR-Signalverarbeitung |
spellingShingle |
SAR-Signalverarbeitung Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Völksen, 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 |
SAR-Signalverarbeitung |
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 (Björnsson 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 Mýrdalsjökull 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 |
Other Non-Article Part of Journal/Newspaper |
author |
Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Völksen, Christof Minet, Christian Münzer, Ulrich |
author_facet |
Mayer, Christoph Jaenicke, Julia Lambrecht, Astrid Braun, Ludwig Völksen, 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 |
Cambridge University Press |
publishDate |
2016 |
url |
https://elib.dlr.de/107440/ https://elib.dlr.de/107440/1/local-surface-mass-balance-reconstruction-from-a-tephra-layer-a-case-study-on-the-northern-slope-of-myrdalsjokull-iceland.pdf https://www.cambridge.org/core/journals/journal-of-glaciology |
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_relation |
https://elib.dlr.de/107440/1/local-surface-mass-balance-reconstruction-from-a-tephra-layer-a-case-study-on-the-northern-slope-of-myrdalsjokull-iceland.pdf Mayer, Christoph und Jaenicke, Julia und Lambrecht, Astrid und Braun, Ludwig und Völksen, Christof und Minet, Christian und Münzer, Ulrich (2016) Local surface mass-balance reconstruction from a tephra layer – a case study on the northern slope of Mýrdalsjökull, Iceland. Journal of Glaciology, 235, Seiten 1-9. Cambridge University Press. doi:10.1017/jog.2016.119 <https://doi.org/10.1017/jog.2016.119>. ISSN 0022-1430. |
op_rights |
cc_by_nc_nd |
op_rightsnorm |
CC-BY-NC-ND |
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_ |
1766009712970563584 |