Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods
One of the most striking manifestations of ongoing climate change is a rapid shrinking of the Arctic sea ice area (SIA). An important feature of the observed SIA loss is a nonlinear rate of a decline with an accelerated decrease in the 2000–2019 period relative to a more gradual decline in 1979–1999...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/9/1434 |
| _version_ | 1797491370785505280 |
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| author | Tatiana A. Matveeva Vladimir A. Semenov |
| author_facet | Tatiana A. Matveeva Vladimir A. Semenov |
| author_sort | Tatiana A. Matveeva |
| collection | DOAJ |
| description | One of the most striking manifestations of ongoing climate change is a rapid shrinking of the Arctic sea ice area (SIA). An important feature of the observed SIA loss is a nonlinear rate of a decline with an accelerated decrease in the 2000–2019 period relative to a more gradual decline in 1979–1999. In this study, we perform a quantitative assessment and comparison of the spatial-temporal SIA changes during these two periods. It was found that winter Arctic SIA loss is primarily associated with changes in the Barents Sea, where the SIA decline in 2000–2019 has accelerated more than three-fold in comparison with 1979–1999. In summer and autumn, rates of SIA decline in 2000–2019 increased most strongly in the Kara, Beaufort Seas, the Northwestern Passage, and inner Arctic Ocean. The amplitude of the SIA seasonal cycle has also increased in 2000–2019 in comparison with the earlier period, with the largest changes in the inner Arctic Ocean, the Kara, Laptev, East Siberian and Beaufort Seas in summer and in the Barents Sea in winter. The results may reflect a transition to a new dynamic state in the recent two decades with the triggering of positive feedbacks in the Arctic climate system. |
| first_indexed | 2024-03-10T00:46:30Z |
| format | Article |
| id | doaj.art-d1b8cb177fb048458104bca86ac2fde6 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T00:46:30Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-d1b8cb177fb048458104bca86ac2fde62023-11-23T14:59:34ZengMDPI AGAtmosphere2073-44332022-09-01139143410.3390/atmos13091434Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 PeriodsTatiana A. Matveeva0Vladimir A. Semenov1Institute of Geography, Russian Academy of Science, Staromonetny Lane, 29, 119017 Moscow, RussiaInstitute of Geography, Russian Academy of Science, Staromonetny Lane, 29, 119017 Moscow, RussiaOne of the most striking manifestations of ongoing climate change is a rapid shrinking of the Arctic sea ice area (SIA). An important feature of the observed SIA loss is a nonlinear rate of a decline with an accelerated decrease in the 2000–2019 period relative to a more gradual decline in 1979–1999. In this study, we perform a quantitative assessment and comparison of the spatial-temporal SIA changes during these two periods. It was found that winter Arctic SIA loss is primarily associated with changes in the Barents Sea, where the SIA decline in 2000–2019 has accelerated more than three-fold in comparison with 1979–1999. In summer and autumn, rates of SIA decline in 2000–2019 increased most strongly in the Kara, Beaufort Seas, the Northwestern Passage, and inner Arctic Ocean. The amplitude of the SIA seasonal cycle has also increased in 2000–2019 in comparison with the earlier period, with the largest changes in the inner Arctic Ocean, the Kara, Laptev, East Siberian and Beaufort Seas in summer and in the Barents Sea in winter. The results may reflect a transition to a new dynamic state in the recent two decades with the triggering of positive feedbacks in the Arctic climate system.https://www.mdpi.com/2073-4433/13/9/1434Arctic sea iceArctic climateclimate changeERA5 |
| spellingShingle | Tatiana A. Matveeva Vladimir A. Semenov Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods Atmosphere Arctic sea ice Arctic climate climate change ERA5 |
| title | Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods |
| title_full | Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods |
| title_fullStr | Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods |
| title_full_unstemmed | Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods |
| title_short | Regional Features of the Arctic Sea Ice Area Changes in 2000–2019 versus 1979–1999 Periods |
| title_sort | regional features of the arctic sea ice area changes in 2000 2019 versus 1979 1999 periods |
| topic | Arctic sea ice Arctic climate climate change ERA5 |
| url | https://www.mdpi.com/2073-4433/13/9/1434 |
| work_keys_str_mv | AT tatianaamatveeva regionalfeaturesofthearcticseaiceareachangesin20002019versus19791999periods AT vladimirasemenov regionalfeaturesofthearcticseaiceareachangesin20002019versus19791999periods |