Southeast Pacific High Resolution Alkenone SST Reconstruction Kaiser, J.; Lamy, F.; Hebbeln, D. Kaiser, J. Lamy, F. Hebbeln, D. Sea Surface Temperature Reconstruction earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (ODP 1233>LATITUDE -41>LONGITUDE -74.45) 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. In addition, we performed SST gradient reconstructions over the complete latitudinal range of the Pacific Eastern Boundary Current System for different time intervals during the last 70 kyr. The main results suggest an equatorward displaced subtropical gyre circulation during marine isotope stages 2 and 4. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kaiser, J. Investigator : Lamy, F. Investigator : Hebbeln, D. 2005-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/2630 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kaiser2005 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1233k-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kaiser2005 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1233k-tab.txt English https://www.ncdc.noaa.gov/paleo/study/2630 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kaiser2005 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1233k-tab.txt Kaiser, J., F. Lamy, and D. Hebbeln. 2005. A 70-kyr sea surface temperature record off southern Chile(Ocean Drilling Program Site 1233). Paleoceanography 20, PA4009. START YEAR: 69847 14C yr BP * END YEAR: -50 14C yr BP -74.45 -41 -74.45 -41