文献类型：期刊文献

英文题名：Enhanced North Pacific subtropical gyre circulation during the late Holocene

作者：Zhang, Yancheng[1,2];Zheng, Xufeng[3,4];Kong, Deming[5];Yan, Hong[6];Liu, Zhonghui[2]

机构：[1]Sun Yat Sen Univ, Sch Marine Sci, Zhuhai 519082, Peoples R China;[2]Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China;[3]Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China;[4]Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China;[5]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[6]Chinese Acad Sci, Inst Earth Environm, Ctr Excellence Quaternary Sci & Global Change, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China

年份：2021

卷号：12

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000706749500005)、、Scopus(收录号：2-s2.0-85117208923)、WOS

基金：This work was supported by the Strategic Priority Research Program of Chinese Academy of Sciences (XDB40000000), National Key Research and Development Program of China (2016YFA0601204 and 2018YFA0605601), HK Research Grants Council (17325516). X.Z. is also supported by the National Natural Science Foundation of China (41776061, 91958106, 41876068), Pearl River S&T Nova Program of Guangzhou (201906010050), and the Special Support Program for Training High-Level Talents in Guangdong (2019TQ05H572). We thank Darrell Kaufman (and his team) for kind permission to modify the original MATLAB code and to compute the probabilistic stack (shown in Figs. 2 and 4).

语种：英文

外文摘要：The North Pacific Subtropical Gyre circulation redistributes heat from the Western Pacific Warm Pool towards the mid- to high-latitude North Pacific. However, the driving mechanisms of this circulation and how it changed over the Holocene remain poorly understood. Here, we present alkenone-based sea surface temperature reconstructions along the Kuroshio, California and Alaska currents that cover the past similar to 7,000 years. These and other paleorecords collectively demonstrate a coherent intensification of the boundary currents, and thereby the basin-scale subtropical gyre circulation, since similar to 3,000-4,000 years ago. Such enhanced circulation during the late Holocene appears to have resulted from a long-term southward migration of the Intertropical Convergence Zone, associated with Holocene ocean cooling. Our results imply that the North Pacific Subtropical Gyre circulation could be weakened under future global warming. Long-term variability of the North Pacific Subtropical Gyre (NPSG) circulation is not well understood. Here, the authors present data from different boundary currents that shows an enhanced NPSG circulation since similar to 3000-4000 years ago, linked to a southward migration of the Intertropical Convergence Zone.