Eastern Tropical Atlantic Alkenones and Sea Surface Temperatures Zhao, M.; Beveridge, N.A.S.; Shackleton, N.J.; Sarnthein, M.; Eglinton, G. Zhao, M. Beveridge, N.A.S. Shackleton, N.J. Sarnthein, M. Eglinton, G. earth science/paleoclimate/paleoceanography (C37 alkenone,null,null,microgram per gram,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,radiocarbon 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 (alkenone unsaturation index Uk37 prime,null,null,dimensionless,null,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 earth science/paleoclimate/paleocean (ODP658C>LATITUDE 20.75>LONGITUDE -18.58) (BOFS-31K>LATITUDE 19>LONGITUDE -20.17) The molecular stratigraphy of BOFS core 31K and ODP Hole 658C has been studied for C37 alkenone abundances over the past 80 kaat high resolution (~circa 200-500 years). The derived Uk37 sea surface temperature record for both cores shows a range of temperatures from about 18C during the last glacial to 21.5C during the early Holocene. Both records also reveal changes in SST as much as 2C - 4C over a few hundred years, which correlate well with similar abrupt climatic changes observed in cores from elsewhere in the NE Atlantic, associated with ""Heinrich events"". Our results indicate that meltwater produced by these ice-rafting events was transmitted southward by the Canary Current, where it had considerable impact on SSTs in the subtropical eastern Atlantic. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Zhao, M. Investigator : Beveridge, N.A.S. Investigator : Shackleton, N.J. Investigator : Sarnthein, M. Investigator : Eglinton, G. 1995-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/2603 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp658cz-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/bofs-31k-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao1995 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp658cz-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/bofs-31k-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao1995 English https://www.ncdc.noaa.gov/paleo/study/2603 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp658cz-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/bofs-31k-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao1995 Zhao, M., N.A.S. Beveridge, N.J. Shackleton, M. Sarnthein, and G. Eglinton. 1995. Molecular stratigraphy of cores off northwest Africa: Sea surface temperature history over the last 80 ka. Paleoceanography 10(3):661-675. START YEAR: 83906 14C yr BP * END YEAR: 46 14C yr BP -20.17 19 -18.58 20.75