Tasmaloum - Fossil Coral d18O, Sr/Ca, and SST Reconstruction Corrège, T.; Gagan, M.K.; Beck, J.W.; Burr, G.S.; Cabioch, G.; Le Cornec, F. Corrège, T. Gagan, M.K. Beck, J.W. Burr, G.S. Cabioch, G. Le Cornec, F. Sea Surface Temperature Reconstruction earth science/paleoclimate/climate reconstructions|corals and sclerosponges (delta 18O,delta 18O|sea water|strontium/calcium,null,per mil,monthly,climate reconstructions|corals and sclerosponges,null,null,N,sea surface) earth science/paleoclimate/corals and sclerosponges (delta 18O,Diploastrea heliopora,null,per mil VPDB,null,corals and sclerosponges,interpolated,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/corals and sclerosponges (strontium/calcium,Diploastrea heliopora,null,millimole per mole,null,corals and sclerosponges,raw,inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/corals and sclerosponges (strontium/calcium,Diploastrea heliopora,null,millimole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,null) earth science/paleoclimate/climate reconstructions|corals and sclerosponges (age,null,null,calendar year before present,null,climate reconstructions|corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (delta 18O,Diploastrea heliopora,null,per mil VPDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/climate reconstructions|corals and sclerosponges (sea surface temperature,delta 18O,null,degree Celsius,null,climate reconstructions|corals and sclerosponges,null,null,N,null) earth science/paleoclimate/climate reconstructions|corals and sclerosponges (sea surface temperature,strontium/calcium,null,degree Celsius,monthly,climate reconstructions|corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Tasmaloum>LATITUDE -15.67>LONGITUDE 167) During the Younger Dryas event, about 12,000 years ago, the Northern Hemisphere cooled by between 2 and 10 degrees C, whereas East Antarctica experienced warming. But the spatial signature of the event in the southern mid-latitudes and tropics is less well known, as records are sparse and inconclusive. Here we present high-resolution analyses of skeletal Sr/Ca and 18O/16O ratios for a giant fossil Diploastrea heliopora coral that was preserved in growth position on the raised reef terraces of Espiritu Santo Island, Vanuatu, in the southwestern tropical Pacific Ocean. Our data indicate that sea surface temperatures in Vanuatu were on average 4.5ą1.3 deg. C cooler during the Younger Dryas event than today, with a significant interdecadal modulation. The amplified annual cycle of sea surface temperatures, relative to today, indicates that cooling was caused by the compression of tropical waters towards the Equator. The positive correlation in our record between the oxygen isotope ratios of seawater and sea surface temperatures suggests that the South Pacific convergence zone, which brings 18O-depleted precipitation to the area today, was not active during the Younger Dryas period. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Corrège, T. Investigator : Gagan, M.K. Investigator : Beck, J.W. Investigator : Burr, G.S. Investigator : Cabioch, G. Investigator : Le Cornec, F. 2004-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/1882 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/tasmaloum_2004.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/tasmaloum_2004.txt English https://www.ncdc.noaa.gov/paleo/study/1882 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/tasmaloum_2004.txt Corrčge, T., M.K. Gagan, J.W. Beck, G.S. Burr, G. Cabioch, and F. Le Cornec. 2004. Interdecadal variation in the extent of South Pacific tropical waters during the Younger Dryas event. Nature 428:927-929 (29 April 2004). START YEAR: -10449 AD * END YEAR: -9956 AD 167 -15.67 167 -15.67