Alkenone-based SST record in sediment core YJ from northern South China Sea
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2019
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| author | Zhang, Yancheng Zhu, Kai Huang, Chao Kong, Deming He, Yuxin Wang, Huanye Liu, Weiguo Xie, Zhouqing Wei, Gangjian Liu, Zhonghui |
| author_facet | Zhang, Yancheng Zhu, Kai Huang, Chao Kong, Deming He, Yuxin Wang, Huanye Liu, Weiguo Xie, Zhouqing Wei, Gangjian Liu, Zhonghui |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Independent inference of the Asian winter monsoon (AWM), albeit achieved at several sparse sites, has reached no consensus for its variability through the Holocene. A sediment core from the northern coast of the South China Sea (SCS) was utilized to analyze organic biomarkers at (bi‐)decadal resolution, unveiling how SCS oceanic conditions fingerprint the AWM signal. Generally, alkenone sea surface temperature (SST) record, resembling the temporal structures of integrated tropical SST over the past 7500 years, shows abnormal cool temperatures (up to ~4°C) during the Little Ice Age (LIA) and between ~1200 and 2500 yr BP, when windborne terrigenous hopane compounds experienced considerable increases superimposed on a general increasing trend. Our results, together with augmented SST gradient between the SCS coast and open ocean, consistently suggest AWM strengthening toward the late Holocene. An intensified AWM during cold intervals like the LIA would have provided strong positive feedback to enhance coastal cooling. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_905642 |
| institution | PANGAEA |
| language | en |
| publishDate | 2019 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Alkenone-based SST record in sediment core YJ from northern South China Sea Zhang, Yancheng Zhu, Kai Huang, Chao Kong, Deming He, Yuxin Wang, Huanye Liu, Weiguo Xie, Zhouqing Wei, Gangjian Liu, Zhonghui Age; AGE; Alkenone, C37:3+C37:2; alkenone SST; Biomarkers; DEPTH, sediment/rock; GC; Gravity corer; Hopane, total; northern coast; Sample code/label; SCS_YJ; Sea surface temperature; South China Sea; SST, from UK'37 Independent inference of the Asian winter monsoon (AWM), albeit achieved at several sparse sites, has reached no consensus for its variability through the Holocene. A sediment core from the northern coast of the South China Sea (SCS) was utilized to analyze organic biomarkers at (bi‐)decadal resolution, unveiling how SCS oceanic conditions fingerprint the AWM signal. Generally, alkenone sea surface temperature (SST) record, resembling the temporal structures of integrated tropical SST over the past 7500 years, shows abnormal cool temperatures (up to ~4°C) during the Little Ice Age (LIA) and between ~1200 and 2500 yr BP, when windborne terrigenous hopane compounds experienced considerable increases superimposed on a general increasing trend. Our results, together with augmented SST gradient between the SCS coast and open ocean, consistently suggest AWM strengthening toward the late Holocene. An intensified AWM during cold intervals like the LIA would have provided strong positive feedback to enhance coastal cooling. |
| title | Alkenone-based SST record in sediment core YJ from northern South China Sea |
| topic | Age; AGE; Alkenone, C37:3+C37:2; alkenone SST; Biomarkers; DEPTH, sediment/rock; GC; Gravity corer; Hopane, total; northern coast; Sample code/label; SCS_YJ; Sea surface temperature; South China Sea; SST, from UK'37 |
| url | https://doi.org/10.1594/PANGAEA.905642 |