冲绳海槽南部岩芯长链烯酮数据集（过去20 ka）

通过分析冲绳海槽南部Oki02岩芯中过去20 ka的长链烯酮，探讨了该区域海表温度(SST)变化历史。基于长链烯酮的SST记录显示，在约3000-4000年前以来的晚全新世期间，冬季发生的黑潮/北太平洋副热带环流（KC/NPSG）强度明显增强是引起北太平洋边缘海域普遍升温（约1-2 °C）唯一可能的合理解释。在晚（中）全新世期间，KC/NPSG系统的整体性增强（弱）似乎与同步出现的赤道辐合带纬向南（北）移直接相关。

By analyzing long-chain alkenones in core Oki02 from the southern Okinawa Trough covering the past 20 ka, this study investigates the historical variability of sea surface temperature (SST) in this region. The SST record derived from long-chain alkenones reveals that during the late Holocene epoch since approximately 3000–4000 years ago, the markedly intensified wintertime Kuroshio Current/North Pacific Subtropical Gyre (KC/NPSG) represents the only plausible driver for the widespread sea surface warming (approximately 1–2 °C) in the North Pacific marginal seas. During the late (mid-) Holocene, the overall intensification (weakening) of the KC/NPSG system appears to be directly correlated with the synchronous latitudinal southward (northward) shift of the Intertropical Convergence Zone (ITCZ).