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学科主题: Geology
题名: 3500 yr record of centennial-scale climate variability from the Western Pacific Warm Pool
作者: Langton, SJ ; Linsley, BK ; Robinson, RS ; Rosenthal, Y ; Oppo, DW ; Eglinton, TI ; Howe, SS ; Djajadihardja, YS ; Syamsudin, F
关键词: climate ; El Nino Southern Oscillation ; Western Pacific Warm Pool ; Indonesia
刊名: GEOLOGY
发表日期: 2008-01-01
卷: 36, 期:10, 页:795-798
收录类别: sci
部门归属: [Langton, S. J.; Linsley, B. K.; Howe, S. S.] SUNY Albany, Dept Earth & Atmospher Sci, Albany, NY 12222 USA; [Robinson, R. S.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA; [Rosenthal, Y.] Rutgers State Univ, Inst Marine & Coastal Sci, Piscataway, NJ 08854 USA; [Oppo, D. W.; Eglinton, T. I.] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; [Djajadihardja, Y. S.; Syamsudin, F.] Agcy Assessment & Applicat Technol, BPPT, Jakarta 10340, Indonesia
摘要: We use geochemical data from a sediment core in the shallow-silled and intermittently dysoxic Kau Bay in Halmahera (Indonesia, lat 1 degrees N, long 127.5 degrees E) to reconstruct century-scale climate variability within the Western Pacific Warm Pool over the past similar to 3500 yr. Downcore variations in bulk sedimentary delta N-15 appear to reflect century-scale variability in basin ventilation, attributed to changes in oceanographic conditions related to century-scale fluctuations in El Nino Southern Oscillation (ENSO). We infer an increase in century-scale El Nino activity beginning ca. 1700 yr B.P. with peaks in El Nino activity ca. 1500 yr B.P., 1150 yr B.P., and ca. 700 yr B.P. The Kau Bay results suggest that there was diminished ENSO amplitude or frequency, or a departure from El Nino-like conditions during the Medieval Warm Period, and distinctive, but steadily decreasing, El Nino activity during and after the Little Ice Age.
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/8427
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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Langton, SJ; Linsley, BK; Robinson, RS; Rosenthal, Y; Oppo, DW; Eglinton, TI; Howe, SS; Djajadihardja, YS; Syamsudin, F.3500 yr record of centennial-scale climate variability from the Western Pacific Warm Pool,GEOLOGY,2008,36(10):795-798
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