ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023
The estimation of the worldwide glacier mass balance between 2019 and 2023 was accomplished through the utilization of ICESat-2 ATL06 data by employing a quadratic surface model fitting approach. Glaciers have a mass change of −331.68 ± 59.07 Gt/yr during this four-y...
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IEEE
2025-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
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| Online Access: | https://ieeexplore.ieee.org/document/10803955/ |
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| author | Yubin Fan Lanhua Luo Chang-Qing Ke Genyu Wang |
| author_facet | Yubin Fan Lanhua Luo Chang-Qing Ke Genyu Wang |
| author_sort | Yubin Fan |
| collection | DOAJ |
| description | The estimation of the worldwide glacier mass balance between 2019 and 2023 was accomplished through the utilization of ICESat-2 ATL06 data by employing a quadratic surface model fitting approach. Glaciers have a mass change of −331.68 ± 59.07 Gt/yr during this four-year span, which can be equivalated to a sea level rise of 0.916 ± 0.163 mm/yr. Accelerated but contrasting patterns of glacier mass change have been observed, with an accelerated mass loss found in regions such as Svalbard, Russian Arctic, the High Mountain Asia, and the southern Andes. In contrast, Alaska exhibited a decelerated mass loss, and some Antarctic glaciers experienced a slight mass gain. In the maritime regions, land-terminating glaciers have experienced more extensive mass loss except Svalbard and the Russian Arctic. The analysis of seasonal glacier changes indicated that the majority of regions demonstrated their lowest glacier mass in the summer of 2022, and lost approximately 50% mass during 2022–2023. These results provide valuable reference data for the assessment of glacier mass balance using ICESat-2. |
| format | Article |
| id | doaj-art-3f207b0533e147e3a29306ff2b17d2e4 |
| institution | Kabale University |
| issn | 1939-1404 2151-1535 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj-art-3f207b0533e147e3a29306ff2b17d2e42025-01-04T00:00:26ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-01182370238210.1109/JSTARS.2024.351848010803955ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023Yubin Fan0https://orcid.org/0000-0002-9311-6795Lanhua Luo1Chang-Qing Ke2https://orcid.org/0000-0003-0212-4069Genyu Wang3School of Geography and Planning, Chizhou University, Chizhou, ChinaJiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing, ChinaJiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing, ChinaJiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing, ChinaThe estimation of the worldwide glacier mass balance between 2019 and 2023 was accomplished through the utilization of ICESat-2 ATL06 data by employing a quadratic surface model fitting approach. Glaciers have a mass change of −331.68 ± 59.07 Gt/yr during this four-year span, which can be equivalated to a sea level rise of 0.916 ± 0.163 mm/yr. Accelerated but contrasting patterns of glacier mass change have been observed, with an accelerated mass loss found in regions such as Svalbard, Russian Arctic, the High Mountain Asia, and the southern Andes. In contrast, Alaska exhibited a decelerated mass loss, and some Antarctic glaciers experienced a slight mass gain. In the maritime regions, land-terminating glaciers have experienced more extensive mass loss except Svalbard and the Russian Arctic. The analysis of seasonal glacier changes indicated that the majority of regions demonstrated their lowest glacier mass in the summer of 2022, and lost approximately 50% mass during 2022–2023. These results provide valuable reference data for the assessment of glacier mass balance using ICESat-2.https://ieeexplore.ieee.org/document/10803955/Glacier mass balanceICESat-2quadratic surface fitseasonal glacier change |
| spellingShingle | Yubin Fan Lanhua Luo Chang-Qing Ke Genyu Wang ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Glacier mass balance ICESat-2 quadratic surface fit seasonal glacier change |
| title | ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 |
| title_full | ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 |
| title_fullStr | ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 |
| title_full_unstemmed | ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 |
| title_short | ICESat-2 Reveals Accelerated Global Glacier Mass Loss Except Alaska From 2019 to 2023 |
| title_sort | icesat 2 reveals accelerated global glacier mass loss except alaska from 2019 to 2023 |
| topic | Glacier mass balance ICESat-2 quadratic surface fit seasonal glacier change |
| url | https://ieeexplore.ieee.org/document/10803955/ |
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