Oceanic evidence of climate change in southern Australia over the last three centuries

作者：Ronald E. Thresher, Stephen Rich Rintoul, J. Anthony Koslow, Chris Weidman, Jess F. Adkins, Craig Proctor · 发表于：Geophysical Research Letters · 年份：2004 · DOI：10.1029/2003gl018869 · 被引用次数：76 · 研究领域：Geology and Paleoclimatology Research、Marine animal studies overview、Marine and fisheries research

Chemical analysis of deepwater octocorals collected at 1000 m depth off southern Australia indicates long‐term cooling, beginning in the mid‐18th century. This cooling appears to reflect shoaling of isotherms along the continental shelf, that can be related statistically, observationally and by modeling to increasing coastal sea‐surface temperatures, that in turn reflect a poleward extension of the SW Pacific boundary current (the East Australian Current). The oceanographic changes implied by the coral record suggest climate change in temperate Australia starting about the time of European settlement. Correlations between temperate Australian and Antarctic indices suggest these long‐term changes might also be relevant to Antarctic climate.