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学科主题: Multidisciplinary Sciences
题名: Magnitude and timing of temperature change in the Indo-Pacific warm pool during deglaciation
作者: Visser, K ; Thunell, R ; Stott, L
刊名: NATURE
发表日期: 2003-01-01
卷: 421, 期:6919, 页:152-155
收录类别: sci
部门归属: Univ S Carolina, Dept Geol Sci, Columbia, SC 29205 USA; Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA
摘要: Ocean-atmosphere interactions in the tropical Pacific region have a strong influence on global heat and water vapour transport and thus constitute an important component of the climate system(1,2). Changes in sea surface temperatures and convection in the tropical Indo-Pacific region are thought to be responsible for the interannual to decadal climate variability observed in extratropical regions(1,3), but the role of the tropics in climate changes on millennial and orbital timescales is less clear. Here we analyse oxygen isotopes and Mg/Ca ratios of foraminiferal shells from the Makassar strait in the heart of the Indo-Pacific warm pool, to obtain synchronous estimates of sea surface temperatures and ice volume. We find that sea surface temperatures increased by 3.5-4.0 degreesC during the last two glacial-interglacial transitions, synchronous with the global increase in atmospheric CO2 and Antarctic warming, but the temperature increase occurred 2,000-3,000 years before the Northern Hemisphere ice sheets melted. Our observations suggest that the tropical Pacific region plays an important role in driving glacial-interglacial cycles, possibly through a system similar to how El Nino/Southern Oscillation regulates the poleward flux of heat and water vapour.
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/344004/8495
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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Visser, K; Thunell, R; Stott, L.Magnitude and timing of temperature change in the Indo-Pacific warm pool during deglaciation,NATURE,2003,421(6919):152-155
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文件名: Magnitude and timing of temperature change in the Indo-Pacific warm pool during deglaciation.pdf
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