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学科主题: Geosciences, Multidisciplinary
题名: Holocene evolution of the Indonesian throughflow and the western Pacific warm pool
作者: Linsley, BK ; Rosenthal, Y ; Oppo, DW
通讯作者: blinsley@albany.edu
刊名: NATURE GEOSCIENCE
发表日期: 2010-01-01
卷: 3, 期:8, 页:578-583
收录类别: sci
部门归属: [Linsley, Braddock K.] SUNY Albany, Dept Atmospher & Environm Sci, Albany, NY 12222 USA; [Rosenthal, Yair] Rutgers State Univ, Inst Marine & Coastal Sci, New Brunswick, NJ 08901 USA; [Rosenthal, Yair] Rutgers State Univ, Dept Earth & Planetary Sci, New Brunswick, NJ 08901 USA; [Oppo, Delia W.] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA
摘要: High sea surface temperatures in the western Pacific warm pool fuel atmospheric convection and influence tropical climate. This region also hosts the Indonesian throughflow, the network of currents through which surface and thermocline waters are transported from the western equatorial Pacific Ocean into the Indian Ocean. Here we show, using records of the delta O-18 and Mg/Ca of planktonic foraminifera from eight sediment cores, that from about 10,000 to 7,000 years ago, sea surface temperatures in the western sector of the western Pacific warm pool were about 0.5 degrees C higher than during pre-industrial times. We also find that about 9,500 years ago, when the South China and Indonesian seas were connected by rising sea level, surface waters in the Makassar Strait became relatively fresher. We suggest that the permanent reduction of surface salinity initiated the enhanced flow at lower, thermocline depths seen in the modern Indonesian throughflow. However, the uniformly warm sea surface temperatures found upstream and downstream of the Indonesian throughflow indicate that the early Holocene warmth in this region was not directly related to reduced heat transport by the throughflow that may have resulted from surface freshening of the Makassar Strait. Instead, we propose that the elevated temperatures were the result of a westward shift or expansion of the boundaries of the western Pacific warm pool.
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/8393
Appears in Collections:海洋科技动态信息-印太暖池系统研究_期刊论文

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Linsley, BK; Rosenthal, Y; Oppo, DW.Holocene evolution of the Indonesian throughflow and the western Pacific warm pool,NATURE GEOSCIENCE,2010,3(8):578-583
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文件名: Holocene evolution of the Indonesian throughflow and the western Pacific warm pool.pdf
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