Angola-Benguela Front ODP1078C 25KYr Alkenone SST Reconstructions Kim, J.-H.; Schneider, R.R.; Mulitza, S.; Mueller, P.G. Kim, J.-H. Schneider, R.R. Mulitza, S. Mueller, P.G. Sea Surface Temperature Reconstruction earth science/paleoclimate/paleoceanography (depth,null,null,meter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (notes,null,null,null,null,paleoceanography,null,null,C,sample code/label) 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/paleocean earth science/paleoclimate/paleocean (ODP1078C>LATITUDE -11.92>LONGITUDE 13.4) A prominent feature in the Southeast Atlantic is the Angola-Benguela Front (ABF), the convergence between warm tropical and cold subtropical upwelled waters. At present, the sea-surface temperature (SST) gradient across the ABF and its position are influenced by the strength of southeasterly (SE) trade winds. Here, we present a record of changes in the ABF SST gradient over the last 25 kyr. Variations in this SST contrast indicate that periods of strengthened SE trade-wind intensity occurred during the Last Glacial Maximum, the Younger Dryas, and the Mid to Late Holocene, while Heinrich Event 1, the early part of the Bølling-Allerød, and the Early Holocene were periods of weakened SE trade-winds. STUDY NOTES: Alkenone sea-surface temperature (SST) estimates for the past 33 kyr from a sediment core located near the modern Angola-Benguela Front. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kim, J.-H. Investigator : Schneider, R.R. Investigator : Mulitza, S. Investigator : Mueller, P.G. 2011-06-17 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/11207 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.txt English https://www.ncdc.noaa.gov/paleo/study/11207 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kim2003/kim2003.txt Kim, J.-H., R.R. Schneider, S. Mulitza, and P.J. Müller. 2003. Reconstruction of SE trade-wind intensity based on sea-surface temperature gradients in the Southeast Atlantic over the last 25 kyr. Geophys. Res. Lett., 30(22), 2144, doi:10.1029/2003GL017557. START YEAR: 24740 cal yr BP * END YEAR: 20 cal yr BP 13.4 -11.92 13.4 -11.92