Kaiser, J.; Lamy, F.; Hebbeln, Dierk (2005): A 70-kyr sea surface temperature record off southern Chile (Ocean Drilling Program Site 1233). American Geophysical Union, Washington, DC, United States, Paleoceanography, 20 (4), PA4009, georefid:2007-021970
Abstract:
We present the first high-resolution alkenone-derived sea surface temperature (SST) reconstruction in the southeast Pacific (Ocean Drilling Program Site 1233) covering the major part of the last glacial period and the Holocene. The record shows a clear millennial-scale pattern that is very similar to climate fluctuations observed in Antarctic ice cores, suggesting that the Southern Hemisphere high-latitude climate changes extended into the midlatitudes, involving simultaneous changes in air temperatures over Antarctica, sea ice extent, extension of the Antarctic Circumpolar Current, and westerly atmospheric circulation. A comparison to other midlatitude surface ocean records suggests that this "Antarctic" millennial-scale pattern was probably a hemisphere-wide phenomenon. (mod. journ. abst.)
Coverage:
West: -74.2700 East: -74.2700 North: -41.0000 South: -41.0000
Relations:
Data access: