Changes in the role of Pacific decadal oscillation on sea ice extent variability across the mid-1990s
Abstract 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 i...
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crspringernat:10.1038/s41598-020-74260-0 2023-05-15T15:05:48+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 http://dx.doi.org/10.1038/s41598-020-74260-0 https://www.nature.com/articles/s41598-020-74260-0.pdf https://www.nature.com/articles/s41598-020-74260-0 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 10, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2020 crspringernat https://doi.org/10.1038/s41598-020-74260-0 2022-01-04T07:16:44Z Abstract 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. Article in Journal/Newspaper Arctic Pacific Arctic Sea ice Alaska Springer Nature (via Crossref) Arctic Pacific Scientific Reports 10 1 |
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Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary 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 |
topic_facet |
Multidisciplinary |
description |
Abstract 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 |
Article in Journal/Newspaper |
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 |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41598-020-74260-0 https://www.nature.com/articles/s41598-020-74260-0.pdf https://www.nature.com/articles/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 |
Scientific Reports volume 10, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-74260-0 |
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Scientific Reports |
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10 |
container_issue |
1 |
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1766337442702426112 |