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| Main Authors: | , , , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2020
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.920797 |
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| _version_ | 1867171374773043200 |
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| author | Wu, Yonghua Shi, Xuefa Gong, Xun Jian, Zhimin Zou, Jianjun Liu, Yanguang Lohmann, Gerrit Gorbarenko, Sergey A Tiedemann, Ralf Lembke-Jene, Lester |
| author_facet | Wu, Yonghua Shi, Xuefa Gong, Xun Jian, Zhimin Zou, Jianjun Liu, Yanguang Lohmann, Gerrit Gorbarenko, Sergey A Tiedemann, Ralf Lembke-Jene, Lester |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Paleoceanographic evidence commonly indicates that Last Glacial Maximum surface temperatures in the Japan Sea were comparable to modern conditions, in striking difference to colder neighboring regions. Here, based on a core from the central Japan Sea, our results show similar UK′37- and TEXL86-derived temperatures between 24.7-16.3 ka BP, followed by an abrupt divergence at ~16.3 ka BP and a weakening of divergence after ~ 8.7 ka BP. We attribute this process to a highly stratified glacial upper ocean controlled by the East Asian Summer Monsoon, increasing thermal gradient between surface and subsurface layers during the deglaciation and the intrusion of Tsushima Warm Current since the mid Holocene, respectively. Therefore, we suggest threshold-like changes in upper-ocean temperatures linked to sea-level rise and monsoon dynamics, rather than just sea surface temperatures, play a critical role in shaping the thermal and ventilation history of this NW Pacific marginal sea. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_920797 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Evolution of the upper ocean stratification in the Japan Sea since the last glacial Wu, Yonghua Shi, Xuefa Gong, Xun Jian, Zhimin Zou, Jianjun Liu, Yanguang Lohmann, Gerrit Gorbarenko, Sergey A Tiedemann, Ralf Lembke-Jene, Lester AWI_Paleo; Biomarker; Japan Sea; Last Glacial; LV53-19-1; North Pacific; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; paleo-oceanography; PC; Piston corer; sea-level; SST; TEX86; UK'37; upper ocean Paleoceanographic evidence commonly indicates that Last Glacial Maximum surface temperatures in the Japan Sea were comparable to modern conditions, in striking difference to colder neighboring regions. Here, based on a core from the central Japan Sea, our results show similar UK′37- and TEXL86-derived temperatures between 24.7-16.3 ka BP, followed by an abrupt divergence at ~16.3 ka BP and a weakening of divergence after ~ 8.7 ka BP. We attribute this process to a highly stratified glacial upper ocean controlled by the East Asian Summer Monsoon, increasing thermal gradient between surface and subsurface layers during the deglaciation and the intrusion of Tsushima Warm Current since the mid Holocene, respectively. Therefore, we suggest threshold-like changes in upper-ocean temperatures linked to sea-level rise and monsoon dynamics, rather than just sea surface temperatures, play a critical role in shaping the thermal and ventilation history of this NW Pacific marginal sea. |
| title | Evolution of the upper ocean stratification in the Japan Sea since the last glacial |
| topic | AWI_Paleo; Biomarker; Japan Sea; Last Glacial; LV53-19-1; North Pacific; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; paleo-oceanography; PC; Piston corer; sea-level; SST; TEX86; UK'37; upper ocean |
| url | https://doi.org/10.1594/PANGAEA.920797 |