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...
Published in: | Remote Sensing |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2021
|
Subjects: | |
Online Access: | https://doi.org/10.3390/rs13112089 |
id |
ftmdpi:oai:mdpi.com:/2072-4292/13/11/2089/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2072-4292/13/11/2089/ 2023-08-20T04:04:19+02:00 Increased Ice Thinning over Svalbard Measured by ICESat/ICESat-2 Laser Altimetry Lukas Sochor Thorsten Seehaus Matthias H. Braun agris 2021-05-26 application/pdf https://doi.org/10.3390/rs13112089 EN eng Multidisciplinary Digital Publishing Institute Environmental Remote Sensing https://dx.doi.org/10.3390/rs13112089 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 13; Issue 11; Pages: 2089 ICESat ICESat-2 laser altimetry svalbard barents sea geodesy glacier ice cap elevation change mass change Text 2021 ftmdpi https://doi.org/10.3390/rs13112089 2023-08-01T01:48:37Z 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. Text Arctic Barents Sea glacier Global warming Ice cap Svalbard MDPI Open Access Publishing Arctic Svalbard Barents Sea Remote Sensing 13 11 2089 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
ICESat ICESat-2 laser altimetry svalbard barents sea geodesy glacier ice cap elevation change mass change |
spellingShingle |
ICESat ICESat-2 laser altimetry svalbard barents sea geodesy glacier ice cap elevation change mass change 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 geodesy glacier ice cap elevation change mass change |
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 |
Text |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13112089 |
op_coverage |
agris |
geographic |
Arctic Svalbard Barents Sea |
geographic_facet |
Arctic Svalbard Barents Sea |
genre |
Arctic Barents Sea glacier Global warming Ice cap Svalbard |
genre_facet |
Arctic Barents Sea glacier Global warming Ice cap Svalbard |
op_source |
Remote Sensing; Volume 13; Issue 11; Pages: 2089 |
op_relation |
Environmental Remote Sensing https://dx.doi.org/10.3390/rs13112089 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs13112089 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
11 |
container_start_page |
2089 |
_version_ |
1774714715202650112 |