Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry
International audience We apply swath processing to CryoSat-2 interferometric mode data acquired over the Icelandic ice caps to generate maps of rates of surface elevation change at 0.5 km postings. This high-resolution mapping reveals complex surface elevation changes in the region, related to clim...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559/document https://hal-insu.archives-ouvertes.fr/insu-03707559/file/Geophysical%20Research%20Letters%20-%202016%20-%20Foresta%20-%20Surface%20elevation%20change%20and%20mass%20balance%20of%20Icelandic%20ice%20caps%20derived.pdf https://doi.org/10.1002/2016GL071485 |
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ftinsu:oai:HAL:insu-03707559v1 2023-06-18T03:41:08+02:00 Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry Foresta, L. Gourmelen, N. Pálsson, F. Nienow, P. Björnsson, H. Shepherd, A. Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2016 https://hal-insu.archives-ouvertes.fr/insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559/document https://hal-insu.archives-ouvertes.fr/insu-03707559/file/Geophysical%20Research%20Letters%20-%202016%20-%20Foresta%20-%20Surface%20elevation%20change%20and%20mass%20balance%20of%20Icelandic%20ice%20caps%20derived.pdf https://doi.org/10.1002/2016GL071485 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL071485 insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559/document https://hal-insu.archives-ouvertes.fr/insu-03707559/file/Geophysical%20Research%20Letters%20-%202016%20-%20Foresta%20-%20Surface%20elevation%20change%20and%20mass%20balance%20of%20Icelandic%20ice%20caps%20derived.pdf BIBCODE: 2016GeoRL.4312138F doi:10.1002/2016GL071485 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03707559 Geophysical Research Letters, 2016, 43, pp.12,138-12,145. ⟨10.1002/2016GL071485⟩ mass balance ice caps iceland radar altimetry swath processing [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.1002/2016GL071485 2023-06-05T20:26:36Z International audience We apply swath processing to CryoSat-2 interferometric mode data acquired over the Icelandic ice caps to generate maps of rates of surface elevation change at 0.5 km postings. This high-resolution mapping reveals complex surface elevation changes in the region, related to climate, ice dynamics, and subglacial geothermal and magmatic processes. We estimate rates of volume and mass change independently for the six major Icelandic ice caps, 90% of Iceland's permanent ice cover, for five glaciological years between October 2010 and September 2015. Annual mass balance is highly variable; during the 2014/2015 glaciological year, the Vatnajökull ice cap ( 70% of the glaciated area) experienced positive mass balance for the first time since 1992/1993. Our results indicate that between glaciological years 2010/2011and 2014/2015 Icelandic ice caps have lost 5.8 ± 0.7 Gt a -1 on average, 40% less than the preceding 15 years, contributing 0.016 ± 0.002 mm a -1 to sea level rise. Article in Journal/Newspaper Ice cap Iceland Vatnajökull Institut national des sciences de l'Univers: HAL-INSU Vatnajökull ENVELOPE(-16.823,-16.823,64.420,64.420) Geophysical Research Letters 43 23 12,138 12,145 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
mass balance ice caps iceland radar altimetry swath processing [SDU]Sciences of the Universe [physics] |
spellingShingle |
mass balance ice caps iceland radar altimetry swath processing [SDU]Sciences of the Universe [physics] Foresta, L. Gourmelen, N. Pálsson, F. Nienow, P. Björnsson, H. Shepherd, A. Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
topic_facet |
mass balance ice caps iceland radar altimetry swath processing [SDU]Sciences of the Universe [physics] |
description |
International audience We apply swath processing to CryoSat-2 interferometric mode data acquired over the Icelandic ice caps to generate maps of rates of surface elevation change at 0.5 km postings. This high-resolution mapping reveals complex surface elevation changes in the region, related to climate, ice dynamics, and subglacial geothermal and magmatic processes. We estimate rates of volume and mass change independently for the six major Icelandic ice caps, 90% of Iceland's permanent ice cover, for five glaciological years between October 2010 and September 2015. Annual mass balance is highly variable; during the 2014/2015 glaciological year, the Vatnajökull ice cap ( 70% of the glaciated area) experienced positive mass balance for the first time since 1992/1993. Our results indicate that between glaciological years 2010/2011and 2014/2015 Icelandic ice caps have lost 5.8 ± 0.7 Gt a -1 on average, 40% less than the preceding 15 years, contributing 0.016 ± 0.002 mm a -1 to sea level rise. |
author2 |
Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Foresta, L. Gourmelen, N. Pálsson, F. Nienow, P. Björnsson, H. Shepherd, A. |
author_facet |
Foresta, L. Gourmelen, N. Pálsson, F. Nienow, P. Björnsson, H. Shepherd, A. |
author_sort |
Foresta, L. |
title |
Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
title_short |
Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
title_full |
Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
title_fullStr |
Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
title_full_unstemmed |
Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry |
title_sort |
surface elevation change and mass balance of icelandic ice caps derived from swath mode cryosat-2 altimetry |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559/document https://hal-insu.archives-ouvertes.fr/insu-03707559/file/Geophysical%20Research%20Letters%20-%202016%20-%20Foresta%20-%20Surface%20elevation%20change%20and%20mass%20balance%20of%20Icelandic%20ice%20caps%20derived.pdf https://doi.org/10.1002/2016GL071485 |
long_lat |
ENVELOPE(-16.823,-16.823,64.420,64.420) |
geographic |
Vatnajökull |
geographic_facet |
Vatnajökull |
genre |
Ice cap Iceland Vatnajökull |
genre_facet |
Ice cap Iceland Vatnajökull |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03707559 Geophysical Research Letters, 2016, 43, pp.12,138-12,145. ⟨10.1002/2016GL071485⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL071485 insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559 https://hal-insu.archives-ouvertes.fr/insu-03707559/document https://hal-insu.archives-ouvertes.fr/insu-03707559/file/Geophysical%20Research%20Letters%20-%202016%20-%20Foresta%20-%20Surface%20elevation%20change%20and%20mass%20balance%20of%20Icelandic%20ice%20caps%20derived.pdf BIBCODE: 2016GeoRL.4312138F doi:10.1002/2016GL071485 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2016GL071485 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
23 |
container_start_page |
12,138 |
op_container_end_page |
12,145 |
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1769006572984336384 |