Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano
Abstract Many volcanic systems around the world are located beneath, or in close proximity to, ice caps. Mass change of these ice caps causes surface movements, which are typically neglected when interpreting surface deformation measurements around these volcanoes. These movements can however be sig...
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crspringernat:10.1038/srep10285 2023-05-15T16:50:16+02:00 Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano Spaans, Karsten Hreinsdóttir, Sigrún Hooper, Andrew Ófeigsson, Benedikt Gunnar 2015 http://dx.doi.org/10.1038/srep10285 http://www.nature.com/articles/srep10285 http://www.nature.com/articles/srep10285.pdf en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 5, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2015 crspringernat https://doi.org/10.1038/srep10285 2022-01-04T14:58:14Z Abstract Many volcanic systems around the world are located beneath, or in close proximity to, ice caps. Mass change of these ice caps causes surface movements, which are typically neglected when interpreting surface deformation measurements around these volcanoes. These movements can however be significant and may closely resemble movements due to magma accumulation. Here we show such an example, from Katla volcano, Iceland. Horizontal movements observed by GPS on the flank of Katla have led to the inference of significant inflow of magma into a chamber beneath the caldera, starting in 2000 and continuing over several years. We use satellite radar interferometry and GPS data to show that between 2001 and 2010, the horizontal movements seen on the flank can be explained by the response to the long term shrinking of ice caps and that erratic movements seen at stations within the caldera are also not likely to signify magma inflow. It is important that interpretations of geodetic measurements at volcanoes in glaciated areas consider the effect of ice mass change and previous studies should be carefully reevaluated. Article in Journal/Newspaper Iceland Katla Springer Nature (via Crossref) Katla ENVELOPE(-19.062,-19.062,63.631,63.631) Scientific Reports 5 1 |
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Springer Nature (via Crossref) |
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English |
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Multidisciplinary |
spellingShingle |
Multidisciplinary Spaans, Karsten Hreinsdóttir, Sigrún Hooper, Andrew Ófeigsson, Benedikt Gunnar Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
topic_facet |
Multidisciplinary |
description |
Abstract Many volcanic systems around the world are located beneath, or in close proximity to, ice caps. Mass change of these ice caps causes surface movements, which are typically neglected when interpreting surface deformation measurements around these volcanoes. These movements can however be significant and may closely resemble movements due to magma accumulation. Here we show such an example, from Katla volcano, Iceland. Horizontal movements observed by GPS on the flank of Katla have led to the inference of significant inflow of magma into a chamber beneath the caldera, starting in 2000 and continuing over several years. We use satellite radar interferometry and GPS data to show that between 2001 and 2010, the horizontal movements seen on the flank can be explained by the response to the long term shrinking of ice caps and that erratic movements seen at stations within the caldera are also not likely to signify magma inflow. It is important that interpretations of geodetic measurements at volcanoes in glaciated areas consider the effect of ice mass change and previous studies should be carefully reevaluated. |
format |
Article in Journal/Newspaper |
author |
Spaans, Karsten Hreinsdóttir, Sigrún Hooper, Andrew Ófeigsson, Benedikt Gunnar |
author_facet |
Spaans, Karsten Hreinsdóttir, Sigrún Hooper, Andrew Ófeigsson, Benedikt Gunnar |
author_sort |
Spaans, Karsten |
title |
Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
title_short |
Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
title_full |
Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
title_fullStr |
Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
title_full_unstemmed |
Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano |
title_sort |
crustal movements due to iceland’s shrinking ice caps mimic magma inflow signal at katla volcano |
publisher |
Springer Science and Business Media LLC |
publishDate |
2015 |
url |
http://dx.doi.org/10.1038/srep10285 http://www.nature.com/articles/srep10285 http://www.nature.com/articles/srep10285.pdf |
long_lat |
ENVELOPE(-19.062,-19.062,63.631,63.631) |
geographic |
Katla |
geographic_facet |
Katla |
genre |
Iceland Katla |
genre_facet |
Iceland Katla |
op_source |
Scientific Reports volume 5, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep10285 |
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Scientific Reports |
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5 |
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1 |
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1766040435815350272 |