过去两个世纪热带太平洋对西印度洋年代际海表温度变化的强迫作用。

Tropical pacific forcing of decadal SST variability in the western indian ocean over the past two centuries.

作者信息

Cole JE, Dunbar RB, McClanahan TR, Muthiga NA

机构信息

Department of Geological Sciences/Institute of Arctic and Alpine Research (INSTAAR)/Program in Atmospheric and Ocean Sciences, University of Colorado, Boulder, CO 80309, USA. Department of Geological and Environmental Sciences, Stanfor.

出版信息

Science. 2000 Jan 28;287(5453):617-20. doi: 10.1126/science.287.5453.617.

DOI:10.1126/science.287.5453.617

PMID:10649987

Abstract

A 194-year annual record of skeletal delta(18)O from a coral growing at Malindi, Kenya, preserves a history of sea surface temperature (SST) change that is coherent with instrumental and proxy records of tropical Pacific climate variability over interannual to decadal periods. This variability is superimposed on a warming of as much as 1.3 degrees C since the early 1800s. These results suggest that the tropical Pacific imparts substantial decadal climate variability to the western Indian Ocean and, by implication, may force decadal variability in other regions with strong El Nino-Southern Oscillation teleconnections.

摘要

来自肯尼亚马林迪一处珊瑚的194年骨骼δ(18)O年度记录，保存了海面温度（SST）变化的历史，这与热带太平洋气候在年际到年代际尺度上变化的仪器记录和代用记录相一致。自19世纪初以来，这种变化叠加在高达1.3摄氏度的变暖之上。这些结果表明，热带太平洋给印度洋西部带来了显著的年代际气候变率，并且意味着，它可能在其他与厄尔尼诺-南方涛动有强遥相关的地区引发年代际变率。