Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s
Characteristics of sea ice extent (SIE) have been rapidly changing in the Pacific Arctic sector (PAS) in recent years. The SIE variability in PAS during the late spring and early summer (i.e., April–May–June, AMJ) plays a key role in determining the SIE during the following fall when SIE is at a min...
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ftpubmed:oai:pubmedcentral.nih.gov:7567812 2023-05-15T15:05:18+02:00 Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s Kim, Hyerim Yeh, Sang-Wook An, Soon-Il Song, Se-Yong 2020-10-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567812/ http://www.ncbi.nlm.nih.gov/pubmed/33067517 https://doi.org/10.1038/s41598-020-74260-0 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567812/ http://www.ncbi.nlm.nih.gov/pubmed/33067517 http://dx.doi.org/10.1038/s41598-020-74260-0 © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Sci Rep Article Text 2020 ftpubmed https://doi.org/10.1038/s41598-020-74260-0 2020-10-25T00:45:59Z Characteristics of sea ice extent (SIE) have been rapidly changing in the Pacific Arctic sector (PAS) in recent years. The SIE variability in PAS during the late spring and early summer (i.e., April–May–June, AMJ) plays a key role in determining the SIE during the following fall when SIE is at a minimum. We find that the Pacific Decadal Oscillation (PDO), which is the most dominant variability of sea surface temperature (SST) on the low-frequency timescales, differently influences the SIE in PAS during AMJ before and after the mid-1990s. While a positive phase of PDO during the previous winter acts to increases SIE during AMJ before the mid-1990s, it acts to decrease SIE during AMJ after the mid-1990s. Further analysis indicates that atmospheric circulation associated with PDO differently influences the variability of SIE in the PAS during AMJ by modulating poleward moisture transport across the Alaska or the Far East Asia peninsula. This results in the change in the relationship of PDO and SIE in the PAS before and after the mid-1990s. Text Arctic Pacific Arctic Sea ice Alaska PubMed Central (PMC) Arctic Pacific Scientific Reports 10 1 |
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Article Kim, Hyerim Yeh, Sang-Wook An, Soon-Il Song, Se-Yong Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
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Characteristics of sea ice extent (SIE) have been rapidly changing in the Pacific Arctic sector (PAS) in recent years. The SIE variability in PAS during the late spring and early summer (i.e., April–May–June, AMJ) plays a key role in determining the SIE during the following fall when SIE is at a minimum. We find that the Pacific Decadal Oscillation (PDO), which is the most dominant variability of sea surface temperature (SST) on the low-frequency timescales, differently influences the SIE in PAS during AMJ before and after the mid-1990s. While a positive phase of PDO during the previous winter acts to increases SIE during AMJ before the mid-1990s, it acts to decrease SIE during AMJ after the mid-1990s. Further analysis indicates that atmospheric circulation associated with PDO differently influences the variability of SIE in the PAS during AMJ by modulating poleward moisture transport across the Alaska or the Far East Asia peninsula. This results in the change in the relationship of PDO and SIE in the PAS before and after the mid-1990s. |
format |
Text |
author |
Kim, Hyerim Yeh, Sang-Wook An, Soon-Il Song, Se-Yong |
author_facet |
Kim, Hyerim Yeh, Sang-Wook An, Soon-Il Song, Se-Yong |
author_sort |
Kim, Hyerim |
title |
Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
title_short |
Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
title_full |
Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
title_fullStr |
Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
title_full_unstemmed |
Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s |
title_sort |
changes in the role of pacific decadal oscillation on sea ice extent variability across the mid-1990s |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567812/ http://www.ncbi.nlm.nih.gov/pubmed/33067517 https://doi.org/10.1038/s41598-020-74260-0 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Pacific Arctic Sea ice Alaska |
genre_facet |
Arctic Pacific Arctic Sea ice Alaska |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567812/ http://www.ncbi.nlm.nih.gov/pubmed/33067517 http://dx.doi.org/10.1038/s41598-020-74260-0 |
op_rights |
© The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-74260-0 |
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