Thresholds in East Asian marginal seas circulation due to deglacial sea level rise
Abstract East Asian marginal seas (EAMS) circulation is closely configurated by sea level rise during the last deglaciation. Here, we perform simulations to reconstruct the EAMS circulation on the basis of sea levels from −90 to 0 m of the present, using a high-resolution regional ocean circulation...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-025-00927-y |
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| author | Xun Gong Yang Yu Xuefa Shi Xiaopei Lin Guangliang Liu Zhi Dong Xuesong Wang Jiong Zheng Lester Lembke-Jene Gerrit Lohmann |
| author_facet | Xun Gong Yang Yu Xuefa Shi Xiaopei Lin Guangliang Liu Zhi Dong Xuesong Wang Jiong Zheng Lester Lembke-Jene Gerrit Lohmann |
| author_sort | Xun Gong |
| collection | DOAJ |
| description | Abstract East Asian marginal seas (EAMS) circulation is closely configurated by sea level rise during the last deglaciation. Here, we perform simulations to reconstruct the EAMS circulation on the basis of sea levels from −90 to 0 m of the present, using a high-resolution regional ocean circulation model under present-day fixed surface and lateral boundary conditions. Our results show that the EAMS circulation underwent twice abrupt changes: a rapid initiation of its modern structure when sea level rise exceeded −40 m, followed by a temporary overshoot of the Japan-Sea throughflows at −5 m. These nonlinear processes are caused by the opening of the Soya Strait and thus formation of the modern EAMS-circulation structure, and a transient absence of the circulation resembling a Kuroshio Large Meander following around-island integral constraint, respectively. Conceptually, our findings introduce the around-island integral constraint on abrupt shift in the global marginal-sea circulation during the last deglaciation. |
| format | Article |
| id | doaj-art-737a09d0e2db4af5b85bb9e153293e4e |
| institution | DOAJ |
| issn | 2397-3722 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-737a09d0e2db4af5b85bb9e153293e4e2025-08-20T03:04:18ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-03-01811710.1038/s41612-025-00927-yThresholds in East Asian marginal seas circulation due to deglacial sea level riseXun Gong0Yang Yu1Xuefa Shi2Xiaopei Lin3Guangliang Liu4Zhi Dong5Xuesong Wang6Jiong Zheng7Lester Lembke-Jene8Gerrit Lohmann9Key Laboratory of Computing Power Network and Information Security, Ministry of Education, Shandong Computer Science Center, Qilu University of Technology (Shandong Academy of Sciences)CAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of SciencesLaboratory for Marine Geology, Qingdao Marine Science and Technology Center Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of ChinaKey Laboratory of Computing Power Network and Information Security, Ministry of Education, Shandong Computer Science Center, Qilu University of Technology (Shandong Academy of Sciences)Laboratory for Marine Geology, Qingdao Marine Science and Technology CenterInstitute for Advanced Marine Research, China University of GeosciencesInstitute for Advanced Marine Research, China University of GeosciencesAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und MeeresforschungAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und MeeresforschungAbstract East Asian marginal seas (EAMS) circulation is closely configurated by sea level rise during the last deglaciation. Here, we perform simulations to reconstruct the EAMS circulation on the basis of sea levels from −90 to 0 m of the present, using a high-resolution regional ocean circulation model under present-day fixed surface and lateral boundary conditions. Our results show that the EAMS circulation underwent twice abrupt changes: a rapid initiation of its modern structure when sea level rise exceeded −40 m, followed by a temporary overshoot of the Japan-Sea throughflows at −5 m. These nonlinear processes are caused by the opening of the Soya Strait and thus formation of the modern EAMS-circulation structure, and a transient absence of the circulation resembling a Kuroshio Large Meander following around-island integral constraint, respectively. Conceptually, our findings introduce the around-island integral constraint on abrupt shift in the global marginal-sea circulation during the last deglaciation.https://doi.org/10.1038/s41612-025-00927-y |
| spellingShingle | Xun Gong Yang Yu Xuefa Shi Xiaopei Lin Guangliang Liu Zhi Dong Xuesong Wang Jiong Zheng Lester Lembke-Jene Gerrit Lohmann Thresholds in East Asian marginal seas circulation due to deglacial sea level rise npj Climate and Atmospheric Science |
| title | Thresholds in East Asian marginal seas circulation due to deglacial sea level rise |
| title_full | Thresholds in East Asian marginal seas circulation due to deglacial sea level rise |
| title_fullStr | Thresholds in East Asian marginal seas circulation due to deglacial sea level rise |
| title_full_unstemmed | Thresholds in East Asian marginal seas circulation due to deglacial sea level rise |
| title_short | Thresholds in East Asian marginal seas circulation due to deglacial sea level rise |
| title_sort | thresholds in east asian marginal seas circulation due to deglacial sea level rise |
| url | https://doi.org/10.1038/s41612-025-00927-y |
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