Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer
In recent decades, Arctic summer sea ice extent (SIE) has shown a rapid decline overlaid with large interannual variations, both of which are influenced by geopotential height anomalies over Greenland (GL-high) and the central Arctic (CA-high). In this study, we find that SIE along coastal Siberia (...
Published in: | Advances in Atmospheric Sciences |
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ftoceanrep:oai:oceanrep.geomar.de:57346 2024-02-11T09:54:53+01:00 Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer Wang, Shaoyin Liu, Jiping Cheng, Xiao Greatbatch, Richard John Wei, Zixin Chen, Zhuoqi Li, Hua 2023-12 text https://oceanrep.geomar.de/id/eprint/57346/ https://oceanrep.geomar.de/id/eprint/57346/13/s00376-022-2176-1.pdf https://link.springer.com/article/10.1007/s00376-022-2176-1 https://doi.org/10.1007/s00376-022-2176-1 en eng Springer https://oceanrep.geomar.de/id/eprint/57346/13/s00376-022-2176-1.pdf Wang, S., Liu, J., Cheng, X., Greatbatch, R. J. , Wei, Z., Chen, Z. and Li, H. (2023) Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer. Advances in Atmospheric Sciences, 40 . pp. 2344-2361. DOI 10.1007/s00376-022-2176-1 <https://doi.org/10.1007/s00376-022-2176-1>. doi:10.1007/s00376-022-2176-1 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2023 ftoceanrep https://doi.org/10.1007/s00376-022-2176-1 2024-01-15T00:26:12Z In recent decades, Arctic summer sea ice extent (SIE) has shown a rapid decline overlaid with large interannual variations, both of which are influenced by geopotential height anomalies over Greenland (GL-high) and the central Arctic (CA-high). In this study, we find that SIE along coastal Siberia (Sib-SIE) and Alaska (Ala-SIE) accounts for about 65% and 21% of the Arctic SIE interannual variability, respectively. Variability in Ala-SIE is related to the GL-high, whereas variability in Sib-SIE is related to the CA-high. A decreased Ala-SIE is associated with decreased cloud cover and increased easterly winds along the Alaskan coast, promoting ice-albedo feedback. A decreased Sib-SIE is associated with a significant increase in water vapor and downward longwave radiation (DLR) along the Siberian coast. The years 2012 and 2020 with minimum recorded ASIE are used as examples. Compared to climatology, summer 2012 is characterized by a significantly enhanced GL-high with major sea ice loss along the Alaskan coast, while summer 2020 is characterized by an enhanced CA-high with sea ice loss focused along the Siberian coast. In 2012, the lack of cloud cover along the Alaskan coast contributed to an increase in incoming solar radiation, amplifying ice-albedo feedback there; while in 2020 the opposite occurs with an increase in cloud cover along the Alaskan coast, resulting in a slight increase in sea ice there. Along the Siberian coast, increased DLR in 2020 plays a dominant role in sea ice loss and increased cloud cover and water vapor both contribute to the increased DLR. Article in Journal/Newspaper albedo Arctic Arctic Greenland Sea ice Alaska Siberia OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Greenland Advances in Atmospheric Sciences |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
In recent decades, Arctic summer sea ice extent (SIE) has shown a rapid decline overlaid with large interannual variations, both of which are influenced by geopotential height anomalies over Greenland (GL-high) and the central Arctic (CA-high). In this study, we find that SIE along coastal Siberia (Sib-SIE) and Alaska (Ala-SIE) accounts for about 65% and 21% of the Arctic SIE interannual variability, respectively. Variability in Ala-SIE is related to the GL-high, whereas variability in Sib-SIE is related to the CA-high. A decreased Ala-SIE is associated with decreased cloud cover and increased easterly winds along the Alaskan coast, promoting ice-albedo feedback. A decreased Sib-SIE is associated with a significant increase in water vapor and downward longwave radiation (DLR) along the Siberian coast. The years 2012 and 2020 with minimum recorded ASIE are used as examples. Compared to climatology, summer 2012 is characterized by a significantly enhanced GL-high with major sea ice loss along the Alaskan coast, while summer 2020 is characterized by an enhanced CA-high with sea ice loss focused along the Siberian coast. In 2012, the lack of cloud cover along the Alaskan coast contributed to an increase in incoming solar radiation, amplifying ice-albedo feedback there; while in 2020 the opposite occurs with an increase in cloud cover along the Alaskan coast, resulting in a slight increase in sea ice there. Along the Siberian coast, increased DLR in 2020 plays a dominant role in sea ice loss and increased cloud cover and water vapor both contribute to the increased DLR. |
format |
Article in Journal/Newspaper |
author |
Wang, Shaoyin Liu, Jiping Cheng, Xiao Greatbatch, Richard John Wei, Zixin Chen, Zhuoqi Li, Hua |
spellingShingle |
Wang, Shaoyin Liu, Jiping Cheng, Xiao Greatbatch, Richard John Wei, Zixin Chen, Zhuoqi Li, Hua Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
author_facet |
Wang, Shaoyin Liu, Jiping Cheng, Xiao Greatbatch, Richard John Wei, Zixin Chen, Zhuoqi Li, Hua |
author_sort |
Wang, Shaoyin |
title |
Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
title_short |
Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
title_full |
Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
title_fullStr |
Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
title_full_unstemmed |
Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer |
title_sort |
separation of atmospheric circulation patterns governing regional variability of arctic sea ice in summer |
publisher |
Springer |
publishDate |
2023 |
url |
https://oceanrep.geomar.de/id/eprint/57346/ https://oceanrep.geomar.de/id/eprint/57346/13/s00376-022-2176-1.pdf https://link.springer.com/article/10.1007/s00376-022-2176-1 https://doi.org/10.1007/s00376-022-2176-1 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
albedo Arctic Arctic Greenland Sea ice Alaska Siberia |
genre_facet |
albedo Arctic Arctic Greenland Sea ice Alaska Siberia |
op_relation |
https://oceanrep.geomar.de/id/eprint/57346/13/s00376-022-2176-1.pdf Wang, S., Liu, J., Cheng, X., Greatbatch, R. J. , Wei, Z., Chen, Z. and Li, H. (2023) Separation of Atmospheric Circulation Patterns Governing Regional Variability of Arctic Sea Ice in Summer. Advances in Atmospheric Sciences, 40 . pp. 2344-2361. DOI 10.1007/s00376-022-2176-1 <https://doi.org/10.1007/s00376-022-2176-1>. doi:10.1007/s00376-022-2176-1 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00376-022-2176-1 |
container_title |
Advances in Atmospheric Sciences |
_version_ |
1790609554688442368 |