Southeast Pacific Alkenone Sea Surface Temperature Reconstruction --------------------------------------------------------------------- NOAA Paleoclimatology Program and World Data Center for Paleoclimatology, Boulder --------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Southeast Pacific Alkenone Sea Surface Temperature Reconstruction LAST UPDATE: 1/2005 (Original Receipt by WDC Paleo) CONTRIBUTOR: Frank Lamy, GeoForschungsZentrum-Potsdam IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2005-005 SUGGESTED DATA CITATION: Lamy, F., et al.. 2005. Southeast Pacific Alkenone Sea Surface Temperature Reconstruction. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series #2005-005. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Lamy,F., J.Kaiser, U.Ninnemann, D.Hebbeln, H.W.Arz, and J.Stoner. 2004. Antarctic Timing of Surface Water Changes off Chile and Patagonian Ice Sheet Response. Science, Vol. 304, No. 5679, pp.1959-1962, 25 June 2004. ABSTRACT: Marine sediments from the Chilean continental margin are used to infer millennial-scale changes in southeast Pacific surface ocean water properties and Patagonian ice sheet extent since the last glacial period. Our data show a clear "Antarctic" timing of sea surface temperature changes, which appear systematically linked to meridional displacements in sea ice, westerly winds, and the circumpolar current system. Proxy data for ice sheet changes show a similar pattern as oceanographic variations offshore, but reveal a variable glacier-response time of up to ~1000 years, which may explain some of the current discrepancies among terrestrial records in southern South America. PERIOD OF RECORD: 8-50 KYrBP DESCRIPTION: Alkenone-based Sea Surface Temperature Reconstruction. Alkenone data from ODP Site 1233: 41 deg. 0.005'S 74 deg. 26.992'W water depth 838m. DATA: Column 1: Calendar Age (kyr) Column 2: SST (degrees C) Age (KYr) SST 7.79 14.49 8.47 14.74 8.99 14.95 9.39 15.37 9.77 15.37 10.15 15.39 10.53 14.9 10.92 15.62 11.32 14.85 11.64 14.89 11.71 14.95 12.1 15.42 12.44 14.06 12.75 13.28 13.05 13.22 13.36 13.15 13.69 12.79 14.24 12.85 14.82 13.01 15.36 12.6 15.91 11.98 16.45 11.97 16.98 12.14 17.43 12.65 17.78 11.5 18.16 10.93 18.47 10.33 18.53 9.99 18.9 9.79 19.27 9.35 19.64 9.44 19.7 9.51 20 9.66 20.36 9.91 20.71 10.24 21.08 10.04 21.43 9.83 21.65 9.31 21.69 9.44 21.93 9.66 22.13 8.4 22.17 8.69 22.37 9.53 22.42 9.95 22.46 9.83 22.73 9.06 23.07 9.4 23.4 10.5 23.67 10.83 23.73 10.98 24.03 10.91 24.09 10.07 24.47 9.39 24.78 8.81 24.84 9.3 25.21 10.12 25.59 10.19 25.98 8.52 26.42 9.31 26.51 9.1 26.61 9.64 26.99 9.77 27.08 9.5 27.65 9.81 28.22 11.27 28.77 10.69 29.06 10.48 29.33 10.47 29.51 10.84 29.63 10.18 29.75 10.71 29.89 9.86 30.04 10.71 30.11 10.57 30.18 10.32 30.43 10.76 30.54 9.55 31.01 9.61 31.37 8.7 31.44 8.56 31.86 10.05 32.29 10.48 32.99 10.29 33.74 10.45 34.65 9.95 35.36 9.64 35.96 9.97 36.08 10.21 36.69 10.21 37.24 10.84 37.8 9.95 38.36 10.01 38.96 10.3 39.3 11.17 39.57 10.59 39.62 10.48 39.87 10.46 39.92 11.07 40.06 10.62 40.14 9.42 40.18 9.5 40.3 8.98 40.42 9.47 40.68 9.28 40.84 9.47 40.88 9.2 40.92 9.2 41 8.56 41.21 10.19 41.46 9.33 41.51 9.6 41.86 10.87 41.91 9.98 41.96 9.56 42.22 10.63 42.5 9.43 42.52 9.52 42.67 9.27 42.81 9.13 42.82 9.51 42.97 10.01 43.13 10.13 43.43 10.98 43.73 10.17 43.88 10.21 44.01 8.72 44.17 8 44.32 8.27 44.47 8.45 44.61 8.36 44.76 8.53 44.91 9.21 45.04 10.31 45.19 10.31 45.34 10.64 45.5 11.11 45.63 11.59 45.78 11.55 45.93 10.16 46.08 9.85 46.23 9.48 46.38 9.47 46.51 10.56 46.66 11.11 46.96 11.23 47.25 9.91 47.55 9.29 47.85 9.85 48.13 9.3 48.43 9 48.72 10.9 49.01 10.5 49.31 11.15 49.6 11.1 49.9 10.38