Brief Communication: Further summer speedup of Jakobshavn Isbræ
We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as tha...
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2014
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Online Access: | https://elib.dlr.de/92560/ https://elib.dlr.de/92560/1/Joughin_et_al_Jakobshavn_tc-8-209-2014.pdf http://www.the-cryosphere.net/8/209/2014/ |
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ftdlr:oai:elib.dlr.de:92560 2023-07-16T03:59:17+02:00 Brief Communication: Further summer speedup of Jakobshavn Isbræ Joughin, Ian Smith, Ben Shean, David Floricioiu, Dana Bamber, Jonathan L. Gruber, Stephan Gudmunsson, Hilmar G. van den Broeke, Michiel 2014 application/pdf https://elib.dlr.de/92560/ https://elib.dlr.de/92560/1/Joughin_et_al_Jakobshavn_tc-8-209-2014.pdf http://www.the-cryosphere.net/8/209/2014/ en eng Copernicus Publications https://elib.dlr.de/92560/1/Joughin_et_al_Jakobshavn_tc-8-209-2014.pdf Joughin, Ian und Smith, Ben und Shean, David und Floricioiu, Dana (2014) Brief Communication: Further summer speedup of Jakobshavn Isbræ. The Cryosphere, 8, Seiten 209-214. Copernicus Publications. doi:10.5194/tc-8-209-2014 <https://doi.org/10.5194/tc-8-209-2014>. ISSN 1994-0416. SAR-Signalverarbeitung Zeitschriftenbeitrag PeerReviewed 2014 ftdlr https://doi.org/10.5194/tc-8-209-2014 2023-06-27T08:28:08Z We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak summer speeds are more than a factor of four greater. These speeds were achieved as the glacier terminus appears to have retreated to the bottom of an over-deepened basin with a depth of ~1300m below sea level. The terminus is likely to reach the deepest section of the trough within a few decades, after which it could rapidly retreat to the shallower regions ~50 km farther upstream, potentially by the end of this century. Article in Journal/Newspaper Jakobshavn Jakobshavn isbræ The Cryosphere German Aerospace Center: elib - DLR electronic library Jakobshavn Isbræ ENVELOPE(-49.917,-49.917,69.167,69.167) The Cryosphere 8 1 209 214 |
institution |
Open Polar |
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German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
SAR-Signalverarbeitung |
spellingShingle |
SAR-Signalverarbeitung Joughin, Ian Smith, Ben Shean, David Floricioiu, Dana Brief Communication: Further summer speedup of Jakobshavn Isbræ |
topic_facet |
SAR-Signalverarbeitung |
description |
We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak summer speeds are more than a factor of four greater. These speeds were achieved as the glacier terminus appears to have retreated to the bottom of an over-deepened basin with a depth of ~1300m below sea level. The terminus is likely to reach the deepest section of the trough within a few decades, after which it could rapidly retreat to the shallower regions ~50 km farther upstream, potentially by the end of this century. |
author2 |
Bamber, Jonathan L. Gruber, Stephan Gudmunsson, Hilmar G. van den Broeke, Michiel |
format |
Article in Journal/Newspaper |
author |
Joughin, Ian Smith, Ben Shean, David Floricioiu, Dana |
author_facet |
Joughin, Ian Smith, Ben Shean, David Floricioiu, Dana |
author_sort |
Joughin, Ian |
title |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_short |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_full |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_fullStr |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_full_unstemmed |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_sort |
brief communication: further summer speedup of jakobshavn isbræ |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://elib.dlr.de/92560/ https://elib.dlr.de/92560/1/Joughin_et_al_Jakobshavn_tc-8-209-2014.pdf http://www.the-cryosphere.net/8/209/2014/ |
long_lat |
ENVELOPE(-49.917,-49.917,69.167,69.167) |
geographic |
Jakobshavn Isbræ |
geographic_facet |
Jakobshavn Isbræ |
genre |
Jakobshavn Jakobshavn isbræ The Cryosphere |
genre_facet |
Jakobshavn Jakobshavn isbræ The Cryosphere |
op_relation |
https://elib.dlr.de/92560/1/Joughin_et_al_Jakobshavn_tc-8-209-2014.pdf Joughin, Ian und Smith, Ben und Shean, David und Floricioiu, Dana (2014) Brief Communication: Further summer speedup of Jakobshavn Isbræ. The Cryosphere, 8, Seiten 209-214. Copernicus Publications. doi:10.5194/tc-8-209-2014 <https://doi.org/10.5194/tc-8-209-2014>. ISSN 1994-0416. |
op_doi |
https://doi.org/10.5194/tc-8-209-2014 |
container_title |
The Cryosphere |
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8 |
container_issue |
1 |
container_start_page |
209 |
op_container_end_page |
214 |
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