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学科主题: Geosciences, Multidisciplinary; Oceanography; Paleontology
题名: Reliability of coral isotope records from the western Pacific warm pool: A comparison using age-optimized records
作者: Guilderson, TP ; Schrag, DP
刊名: PALEOCEANOGRAPHY
发表日期: 1999-01-01
卷: 14, 期:4, 页:457-464
收录类别: sci
部门归属: Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA; Univ Calif Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA
摘要: Stable isotope analysis of two separate corals from Nauru Island in the warm pool of the western tropical Pacific confirm that coral oxygen isotopes are a robust recorder of environmental variables. Coral delta(18)O faithfully records interannual variability even when strongly influenced by kinetic effects. Interannual to decadal variability of coral delta(13)C remains enigmatic; only one of the two corals exhibits the expected light-delta(13)C response in the interannual band. Coral delta(18)O from this region has a great similarity to global instrumental temperature records reflecting the impact of the Pacific warm pool and variations of the Indonesian Low in concert with El Nino-Southern Oscillation on global climate. Since 1896, coral delta(18)O has exhibited a cumulative decrease of 0.7 parts per thousand, which reflects a combination of warming and more frequent El Nino events (precipitation) affecting the surface waters of this region.
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/344004/8509
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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Guilderson, TP; Schrag, DP.Reliability of coral isotope records from the western Pacific warm pool: A comparison using age-optimized records,PALEOCEANOGRAPHY,1999,14(4):457-464
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文件名: Reliability of coral isotope records from the western Pacific warm pool A comparison using age-optimized records.pdf
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