South Australia MD03-2611 Deglacial Alkenone SST Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: South Australia MD03-2611 Deglacial Alkenone SST Data LAST UPDATE: 12/2008 (Original receipt by WDC Paleo) CONTRIBUTOR: Eva Calvo, Institut de Ciències del Mar, CSIC IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2008-120 WDC PALEO CONTRIBUTION SERIES CITATION: Calvo, E., et al. 2008. South Australian MD03-2611 Deglacial Alkenone SST Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2008-120. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Calvo, E., C. Pelejero, P. De Deckker, and G.A. Logan. 2007. Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia. Geophys. Res. Lett., 34, L13707, doi:10.1029/2007GL029937. ABSTRACT: Comparison of ice cores from Greenland and Antarctica shows an asynchronous two-step warming at these high latitudes during the Last Termination. However, the question whether this asynchrony extends to lower latitudes is unclear mainly due to the scarcity of paleorecords from the Southern Hemisphere. New data from a marine core collected off South Australia (~36ºS) allows a detailed reconstruction of sea-surface temperatures over the Last Termination. This confirms the existence of an Antarctic-type deglacial pattern and shows no indication of cooling associated with the Northern Hemisphere YD event. The SST record also provides a new comparison with the more extensive paleoclimatic data available from continental Australia. This shows a strong climatic link between onshore and offshore records for Australia and to Southern Hemisphere paleorecords. We also show a progressive SST drop over the last ~6.5 kyr not seen before for the Australian region. GEOGRAPHIC REGION: Southern Ocean offshore South Australia PERIOD OF RECORD: 30 KYRBP - present FUNDING SOURCES: Spanish MEC and Generalitat de Catalunya (E.C. and C.P.). The Australian National Oceans Office provided all the contract funds for RV Marion Dufresne. Stable isotopes analyses were funded by an ARC DP grant awarded to PDD. AMS dates were funded through AINSE grant 05/036. DESCRIPTION: Alkenone SST and G. bulloides oxygen isotope data from core MD03-2611 in the Murray Canyons area off Kangaroo Island, South Australia. Core MD03-2611: 36º44'S, 136º33'E, 2420m. depth. DATA: 1. MD032611 alkenone SST Column 1: Age, KyrBP Column 2: UK37' SST Age SST 0.68 17.63 0.87 18.12 1.25 18.10 1.63 18.39 2.22 18.26 2.54 18.32 2.86 18.39 3.19 18.47 3.51 18.87 4.04 19.11 4.58 19.37 4.89 19.34 5.20 19.43 5.51 19.49 5.82 19.62 6.33 19.76 6.84 19.66 7.15 19.52 7.46 19.82 7.74 19.49 8.02 19.36 8.35 19.20 8.68 19.23 9.02 18.67 9.37 18.71 9.68 18.70 9.99 18.80 10.48 19.09 10.97 19.29 11.46 18.72 11.95 18.14 12.39 17.98 12.83 16.94 13.27 15.52 13.72 15.53 14.37 15.62 15.46 16.12 15.91 15.78 16.35 15.90 16.80 14.93 17.01 14.36 17.23 14.36 17.44 13.20 17.66 12.13 17.77 11.29 17.87 12.06 18.09 11.58 18.30 11.63 18.52 11.31 18.73 11.20 18.84 11.56 19.02 11.04 19.37 11.61 19.73 11.35 20.08 11.63 20.44 11.63 20.62 12.09 20.79 11.48 21.15 11.95 21.50 11.96 21.86 11.21 22.21 11.12 22.39 11.41 22.57 11.20 22.92 10.98 23.28 11.27 23.76 11.60 24.25 12.35 24.50 11.62 24.74 12.66 25.23 12.63 25.72 12.38 26.21 11.91 26.69 11.88 26.94 11.86 27.18 12.22 27.67 11.79 28.16 11.39 28.65 12.43 29.14 12.68 29.38 12.79 29.62 13.40 30.11 12.53 2. MD032611 Oxygen Isotope Data Column 1: Age, KyrBP Column 2: d18O, G. bulloides Age d18O 0.68 0.51 0.87 0.35 1.25 0.29 1.63 0.47 1.92 0.28 2.22 0.45 2.54 0.41 2.86 0.50 3.19 0.49 3.51 0.43 4.04 0.69 4.58 0.30 4.89 0.27 5.20 0.32 5.51 0.73 5.82 0.21 6.33 0.72 6.84 0.51 7.15 0.50 7.46 0.45 7.74 0.61 8.02 0.48 8.35 0.56 8.68 0.53 9.02 0.82 9.37 0.58 9.68 0.70 9.99 0.81 10.48 0.78 10.97 0.65 11.46 0.83 11.95 0.60 12.39 1.19 12.83 1.15 13.27 1.78 13.72 1.39 14.37 1.60 15.02 1.25 15.46 1.61 15.91 1.58 16.35 2.06 16.80 1.77 17.23 2.17 17.77 2.26 18.30 2.46 18.84 2.79 19.73 2.42 20.62 2.44 21.50 2.34 22.39 2.48 23.28 2.56 24.50 2.37 25.72 2.41 26.94 2.32 28.16 2.28 29.38 2.02 30.60 2.04