Seasonal and Regional Manifestation of Arctic Sea Ice Loss
The Arctic Ocean is currently on a fast track toward seasonally ice-free conditions. Although most attention has been on the accelerating summer sea ice decline, large changes are also occurring in winter. This study assesses past, present, and possible future change in regional Northern Hemisphere...
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AMER METEOROLOGICAL SOC
2018
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ftucl:oai:eprints.ucl.ac.uk.OAI2:10059612 2023-12-24T10:13:33+01:00 Seasonal and Regional Manifestation of Arctic Sea Ice Loss Onarheim, IH Eldevik, T Smedsrud, LH Stroeve, JC 2018-06 text https://discovery.ucl.ac.uk/id/eprint/10059612/1/jcli-d-17-0427.1.pdf https://discovery.ucl.ac.uk/id/eprint/10059612/ eng eng AMER METEOROLOGICAL SOC https://discovery.ucl.ac.uk/id/eprint/10059612/1/jcli-d-17-0427.1.pdf https://discovery.ucl.ac.uk/id/eprint/10059612/ open JOURNAL OF CLIMATE , 31 (12) pp. 4917-4932. (2018) Arctic Sea ice Climate change Article 2018 ftucl 2023-11-27T13:07:38Z The Arctic Ocean is currently on a fast track toward seasonally ice-free conditions. Although most attention has been on the accelerating summer sea ice decline, large changes are also occurring in winter. This study assesses past, present, and possible future change in regional Northern Hemisphere sea ice extent throughout the year by examining sea ice concentration based on observations back to 1950, including the satellite record since 1979. At present, summer sea ice variability and change dominate in the perennial ice-covered Beaufort, Chukchi, East Siberian, Laptev, and Kara Seas, with the East Siberian Sea explaining the largest fraction of September ice loss (22%). Winter variability and change occur in the seasonally ice-covered seas farther south: the Barents Sea, Sea of Okhotsk, Greenland Sea, and Baffin Bay, with the Barents Sea carrying the largest fraction of loss in March (27%). The distinct regions of summer and winter sea ice variability and loss have generally been consistent since 1950, but appear at present to be in transformation as a result of the rapid ice loss in all seasons. As regions become seasonally ice free, future ice loss will be dominated by winter. The Kara Sea appears as the first currently perennial ice-covered sea to become ice free in September. Remaining on currently observed trends, the Arctic shelf seas are estimated to become seasonally ice free in the 2020s, and the seasonally ice-covered seas farther south to become ice free year-round from the 2050s. Article in Journal/Newspaper Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Barents Sea Chukchi Climate change East Siberian Sea Greenland Greenland Sea Kara Sea laptev Sea ice University College London: UCL Discovery Arctic Arctic Ocean Barents Sea Okhotsk Kara Sea Baffin Bay Greenland East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Arctic Sea ice Climate change |
spellingShingle |
Arctic Sea ice Climate change Onarheim, IH Eldevik, T Smedsrud, LH Stroeve, JC Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
topic_facet |
Arctic Sea ice Climate change |
description |
The Arctic Ocean is currently on a fast track toward seasonally ice-free conditions. Although most attention has been on the accelerating summer sea ice decline, large changes are also occurring in winter. This study assesses past, present, and possible future change in regional Northern Hemisphere sea ice extent throughout the year by examining sea ice concentration based on observations back to 1950, including the satellite record since 1979. At present, summer sea ice variability and change dominate in the perennial ice-covered Beaufort, Chukchi, East Siberian, Laptev, and Kara Seas, with the East Siberian Sea explaining the largest fraction of September ice loss (22%). Winter variability and change occur in the seasonally ice-covered seas farther south: the Barents Sea, Sea of Okhotsk, Greenland Sea, and Baffin Bay, with the Barents Sea carrying the largest fraction of loss in March (27%). The distinct regions of summer and winter sea ice variability and loss have generally been consistent since 1950, but appear at present to be in transformation as a result of the rapid ice loss in all seasons. As regions become seasonally ice free, future ice loss will be dominated by winter. The Kara Sea appears as the first currently perennial ice-covered sea to become ice free in September. Remaining on currently observed trends, the Arctic shelf seas are estimated to become seasonally ice free in the 2020s, and the seasonally ice-covered seas farther south to become ice free year-round from the 2050s. |
format |
Article in Journal/Newspaper |
author |
Onarheim, IH Eldevik, T Smedsrud, LH Stroeve, JC |
author_facet |
Onarheim, IH Eldevik, T Smedsrud, LH Stroeve, JC |
author_sort |
Onarheim, IH |
title |
Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
title_short |
Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
title_full |
Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
title_fullStr |
Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
title_full_unstemmed |
Seasonal and Regional Manifestation of Arctic Sea Ice Loss |
title_sort |
seasonal and regional manifestation of arctic sea ice loss |
publisher |
AMER METEOROLOGICAL SOC |
publishDate |
2018 |
url |
https://discovery.ucl.ac.uk/id/eprint/10059612/1/jcli-d-17-0427.1.pdf https://discovery.ucl.ac.uk/id/eprint/10059612/ |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean Barents Sea Okhotsk Kara Sea Baffin Bay Greenland East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea Okhotsk Kara Sea Baffin Bay Greenland East Siberian Sea |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Barents Sea Chukchi Climate change East Siberian Sea Greenland Greenland Sea Kara Sea laptev Sea ice |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Barents Sea Chukchi Climate change East Siberian Sea Greenland Greenland Sea Kara Sea laptev Sea ice |
op_source |
JOURNAL OF CLIMATE , 31 (12) pp. 4917-4932. (2018) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10059612/1/jcli-d-17-0427.1.pdf https://discovery.ucl.ac.uk/id/eprint/10059612/ |
op_rights |
open |
_version_ |
1786183695743320064 |