Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021
The glaciers in Arctic Archipelago of Svalbard, located in the hotspot of global warming, are sensitive to climate change. The assessment of glacier mass balance in Svalbard is one of the hotspots in Arctic research. In this study, we use the laser altimetry ICESat-2 data to investigate the elevatio...
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ftmdpi:oai:mdpi.com:/2073-4433/13/8/1255/ 2023-08-20T04:03:13+02:00 Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 Junhao Wang Yuande Yang Chuya Wang Leiyu Li agris 2022-08-08 application/pdf https://doi.org/10.3390/atmos13081255 EN eng Multidisciplinary Digital Publishing Institute Climatology https://dx.doi.org/10.3390/atmos13081255 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 13; Issue 8; Pages: 1255 Svalbard ICESat-2 satellite altimetry elevation change mass change Text 2022 ftmdpi https://doi.org/10.3390/atmos13081255 2023-08-01T06:00:08Z The glaciers in Arctic Archipelago of Svalbard, located in the hotspot of global warming, are sensitive to climate change. The assessment of glacier mass balance in Svalbard is one of the hotspots in Arctic research. In this study, we use the laser altimetry ICESat-2 data to investigate the elevation and mass change of Svalbard from 2019 to 2021 by a hypsometric approach. It is shown that the Svalbard-wide elevation change rate is −0.775 ± 0.225 m yr−1 in 2019–2021, corresponding to the mass change of −14.843 ± 4.024 Gt yr−1. All regions exhibit a negative mass balance, and the highest mass loss rates are observed at Northwestern Spitsbergen. Compared with ICESat/ICESat-2 (2003–2008 to 2019) and Cryosat-2 (2011–2017) periods, the elevation change from 2019 to 2021 has accelerated, with an increase by 158.3% and 31.5%, respectively, leading to equilibrium line altitude increasing to 750 m. Among the seven subregions, four are accelerated. It is shown that the overall accelerated glacier mass loss in Svalbard is expected to be caused by increasing surge events and temperature rise. Text Arctic Archipelago Arctic Climate change glacier Global warming Svalbard Spitsbergen MDPI Open Access Publishing Arctic Svalbard Atmosphere 13 8 1255 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Svalbard ICESat-2 satellite altimetry elevation change mass change |
spellingShingle |
Svalbard ICESat-2 satellite altimetry elevation change mass change Junhao Wang Yuande Yang Chuya Wang Leiyu Li Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
topic_facet |
Svalbard ICESat-2 satellite altimetry elevation change mass change |
description |
The glaciers in Arctic Archipelago of Svalbard, located in the hotspot of global warming, are sensitive to climate change. The assessment of glacier mass balance in Svalbard is one of the hotspots in Arctic research. In this study, we use the laser altimetry ICESat-2 data to investigate the elevation and mass change of Svalbard from 2019 to 2021 by a hypsometric approach. It is shown that the Svalbard-wide elevation change rate is −0.775 ± 0.225 m yr−1 in 2019–2021, corresponding to the mass change of −14.843 ± 4.024 Gt yr−1. All regions exhibit a negative mass balance, and the highest mass loss rates are observed at Northwestern Spitsbergen. Compared with ICESat/ICESat-2 (2003–2008 to 2019) and Cryosat-2 (2011–2017) periods, the elevation change from 2019 to 2021 has accelerated, with an increase by 158.3% and 31.5%, respectively, leading to equilibrium line altitude increasing to 750 m. Among the seven subregions, four are accelerated. It is shown that the overall accelerated glacier mass loss in Svalbard is expected to be caused by increasing surge events and temperature rise. |
format |
Text |
author |
Junhao Wang Yuande Yang Chuya Wang Leiyu Li |
author_facet |
Junhao Wang Yuande Yang Chuya Wang Leiyu Li |
author_sort |
Junhao Wang |
title |
Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
title_short |
Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
title_full |
Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
title_fullStr |
Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
title_full_unstemmed |
Accelerated Glacier Mass Loss over Svalbard Derived from ICESat-2 in 2019–2021 |
title_sort |
accelerated glacier mass loss over svalbard derived from icesat-2 in 2019–2021 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13081255 |
op_coverage |
agris |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Archipelago Arctic Climate change glacier Global warming Svalbard Spitsbergen |
genre_facet |
Arctic Archipelago Arctic Climate change glacier Global warming Svalbard Spitsbergen |
op_source |
Atmosphere; Volume 13; Issue 8; Pages: 1255 |
op_relation |
Climatology https://dx.doi.org/10.3390/atmos13081255 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos13081255 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
8 |
container_start_page |
1255 |
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1774713628992208896 |