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Memory effects of Eurasian land processes cause enhanced cooling in response to sea ice loss
Amplified Arctic warming and its relevance to mid-latitude cooling in winter have been intensively studied. Observational evidence has shown strong connections between decreasing sea ice and cooling over the Siberian/East Asian regions. However, the robustness of such connections remains a matter of...
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Published in: | Nature communications 2019-11, Vol.10 (1), p.5111-8, Article 5111 |
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description | Amplified Arctic warming and its relevance to mid-latitude cooling in winter have been intensively studied. Observational evidence has shown strong connections between decreasing sea ice and cooling over the Siberian/East Asian regions. However, the robustness of such connections remains a matter of discussion because modeling studies have shown divergent and controversial results. Here, we report a set of general circulation model experiments specifically designed to extract memory effects of land processes that can amplify sea ice–climate impacts. The results show that sea ice–induced cooling anomalies over the Eurasian continent are memorized in the snow amount and soil temperature fields, and they reemerge in the following winters to enhance negative Arctic Oscillation-like anomalies. The contribution from this memory effect is similar in magnitude to the direct effect of sea ice loss. The results emphasize the essential role of land processes in understanding and evaluating the Arctic–mid-latitude climate linkage.
The connection between Arctic sea ice loss and mid-latitude cooling in Eurasia has been widely debated. Here, model experiments reveal that the persistence of sea ice loss-related snow and soil temperature anomalies in Eurasia may lead to further cooling in the following winters. |
doi_str_mv | 10.1038/s41467-019-13124-2 |
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The connection between Arctic sea ice loss and mid-latitude cooling in Eurasia has been widely debated. Here, model experiments reveal that the persistence of sea ice loss-related snow and soil temperature anomalies in Eurasia may lead to further cooling in the following winters.</description><identifier>ISSN: 2041-1723</identifier><identifier>EISSN: 2041-1723</identifier><identifier>DOI: 10.1038/s41467-019-13124-2</identifier><identifier>PMID: 31704932</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>119/118 ; 704/106 ; 704/106/125 ; 704/106/35/823 ; 704/106/694 ; Amplification ; Anomalies ; Cooling ; Cooling effects ; General circulation models ; Humanities and Social Sciences ; Ice ; Ice environments ; Latitude ; multidisciplinary ; Polar environments ; Science ; Science (multidisciplinary) ; Sea ice ; Soil temperature</subject><ispartof>Nature communications, 2019-11, Vol.10 (1), p.5111-8, Article 5111</ispartof><rights>The Author(s) 2019</rights><rights>2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c650t-3f5949ce089cee046ba4ab7f5083be3d4de54f4a9dc7c2cc9c470e221829bcf93</citedby><cites>FETCH-LOGICAL-c650t-3f5949ce089cee046ba4ab7f5083be3d4de54f4a9dc7c2cc9c470e221829bcf93</cites><orcidid>0000-0002-2056-7392 ; 0000-0001-6541-742X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2313063029/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2313063029?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31704932$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nakamura, Tetsu</creatorcontrib><creatorcontrib>Yamazaki, Koji</creatorcontrib><creatorcontrib>Sato, Tomonori</creatorcontrib><creatorcontrib>Ukita, Jinro</creatorcontrib><title>Memory effects of Eurasian land processes cause enhanced cooling in response to sea ice loss</title><title>Nature communications</title><addtitle>Nat Commun</addtitle><addtitle>Nat Commun</addtitle><description>Amplified Arctic warming and its relevance to mid-latitude cooling in winter have been intensively studied. Observational evidence has shown strong connections between decreasing sea ice and cooling over the Siberian/East Asian regions. However, the robustness of such connections remains a matter of discussion because modeling studies have shown divergent and controversial results. Here, we report a set of general circulation model experiments specifically designed to extract memory effects of land processes that can amplify sea ice–climate impacts. The results show that sea ice–induced cooling anomalies over the Eurasian continent are memorized in the snow amount and soil temperature fields, and they reemerge in the following winters to enhance negative Arctic Oscillation-like anomalies. The contribution from this memory effect is similar in magnitude to the direct effect of sea ice loss. The results emphasize the essential role of land processes in understanding and evaluating the Arctic–mid-latitude climate linkage.
The connection between Arctic sea ice loss and mid-latitude cooling in Eurasia has been widely debated. 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subjects | 119/118 704/106 704/106/125 704/106/35/823 704/106/694 Amplification Anomalies Cooling Cooling effects General circulation models Humanities and Social Sciences Ice Ice environments Latitude multidisciplinary Polar environments Science Science (multidisciplinary) Sea ice Soil temperature |
title | Memory effects of Eurasian land processes cause enhanced cooling in response to sea ice loss |
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