Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry
A decade-long pronounced increase in temperatures in the Arctic, especially in the Barents Sea region, resulted in a global warming hotspot over Svalbard. Associated changes in the cryosphere are the consequence and lead to a demand for monitoring of the glacier changes. This study uses spaceborne l...
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Online Access: | https://doi.org/10.3390/rs13112089 https://doaj.org/article/02cd17906d5e48cda56a33156e93a6aa |
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ftdoajarticles:oai:doaj.org/article:02cd17906d5e48cda56a33156e93a6aa 2023-05-15T14:57:43+02:00 Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry Lukas Sochor Thorsten Seehaus Matthias H. Braun 2021-05-01T00:00:00Z https://doi.org/10.3390/rs13112089 https://doaj.org/article/02cd17906d5e48cda56a33156e93a6aa EN eng MDPI AG https://www.mdpi.com/2072-4292/13/11/2089 https://doaj.org/toc/2072-4292 doi:10.3390/rs13112089 2072-4292 https://doaj.org/article/02cd17906d5e48cda56a33156e93a6aa Remote Sensing, Vol 13, Iss 2089, p 2089 (2021) ICESat ICESat-2 laser altimetry svalbard barents sea Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs13112089 2022-12-31T16:18:31Z A decade-long pronounced increase in temperatures in the Arctic, especially in the Barents Sea region, resulted in a global warming hotspot over Svalbard. Associated changes in the cryosphere are the consequence and lead to a demand for monitoring of the glacier changes. This study uses spaceborne laser altimetry data from the ICESat and ICESat-2 missions to obtain ice elevation and mass change rates between 2003–2008 and 2019. Elevation changes are derived at orbit crossover locations throughout the study area, and regional volume and mass changes are estimated using a hypsometric approach. A Svalbard-wide annual elevation change rate of −0.30 ± 0.15 m yr −1 was found, which corresponds to a mass loss rate of −12.40 ± 4.28 Gt yr −1 . Compared to the ICESat period (2003–2009), thinning has increased over most regions, including the highest negative rates along the west coast and areas bordering the Barents Sea. The overall negative regime is expected to be linked to Arctic warming in the last decades and associated changes in glacier climatic mass balance. Further, observed increased thinning rates and pronounced changes at the eastern side of Svalbard since the ICESat period are found to correlate with atmospheric and oceanic warming in the respective regions. Article in Journal/Newspaper Arctic Barents Sea glacier Global warming Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea Svalbard Remote Sensing 13 11 2089 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ICESat ICESat-2 laser altimetry svalbard barents sea Science Q |
spellingShingle |
ICESat ICESat-2 laser altimetry svalbard barents sea Science Q Lukas Sochor Thorsten Seehaus Matthias H. Braun Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
topic_facet |
ICESat ICESat-2 laser altimetry svalbard barents sea Science Q |
description |
A decade-long pronounced increase in temperatures in the Arctic, especially in the Barents Sea region, resulted in a global warming hotspot over Svalbard. Associated changes in the cryosphere are the consequence and lead to a demand for monitoring of the glacier changes. This study uses spaceborne laser altimetry data from the ICESat and ICESat-2 missions to obtain ice elevation and mass change rates between 2003–2008 and 2019. Elevation changes are derived at orbit crossover locations throughout the study area, and regional volume and mass changes are estimated using a hypsometric approach. A Svalbard-wide annual elevation change rate of −0.30 ± 0.15 m yr −1 was found, which corresponds to a mass loss rate of −12.40 ± 4.28 Gt yr −1 . Compared to the ICESat period (2003–2009), thinning has increased over most regions, including the highest negative rates along the west coast and areas bordering the Barents Sea. The overall negative regime is expected to be linked to Arctic warming in the last decades and associated changes in glacier climatic mass balance. Further, observed increased thinning rates and pronounced changes at the eastern side of Svalbard since the ICESat period are found to correlate with atmospheric and oceanic warming in the respective regions. |
format |
Article in Journal/Newspaper |
author |
Lukas Sochor Thorsten Seehaus Matthias H. Braun |
author_facet |
Lukas Sochor Thorsten Seehaus Matthias H. Braun |
author_sort |
Lukas Sochor |
title |
Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
title_short |
Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
title_full |
Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
title_fullStr |
Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
title_full_unstemmed |
Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry |
title_sort |
increased ice thinning over svalbard measured by icesat/icesat-2 laser altimetry |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13112089 https://doaj.org/article/02cd17906d5e48cda56a33156e93a6aa |
geographic |
Arctic Barents Sea Svalbard |
geographic_facet |
Arctic Barents Sea Svalbard |
genre |
Arctic Barents Sea glacier Global warming Svalbard |
genre_facet |
Arctic Barents Sea glacier Global warming Svalbard |
op_source |
Remote Sensing, Vol 13, Iss 2089, p 2089 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/13/11/2089 https://doaj.org/toc/2072-4292 doi:10.3390/rs13112089 2072-4292 https://doaj.org/article/02cd17906d5e48cda56a33156e93a6aa |
op_doi |
https://doi.org/10.3390/rs13112089 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
11 |
container_start_page |
2089 |
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1766329844717584384 |