Northeastern Caribbean Late Holocene SST Reconstruction Nyberg, J.; Malmgren, B.A.; Kuijpers, A.; Winter, A. Nyberg, J. Malmgren, B.A. Kuijpers, A. Winter, A. Sea Surface Temperature Reconstruction earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,null,null,degree Celsius,Feb,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (salinity,sea surface,null,practical salinity unit,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,null,null,degree Celsius,Aug,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (depth,null,null,centimeter,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (age,null,null,year Common Era,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Globigerinoides ruber white,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (PRB12>LATITUDE 17.88>LONGITUDE -66.6) (PRP12>LATITUDE 17.88>LONGITUDE -66.6) Sea-surface temperature (SST) and sea-surface salinity (SSS) fluctuations in the northeastern Caribbean have been reconstructed through the last 2000 yr using an artificial neural network and d18O analyses of planktonic foraminifera. A warmer period prevailed in the NE Caribbean from AD ~700-950, which may reflect the occurrence of stronger and/or more frequent El Niņo events. A ~2°C cooling of winter SSTs, from AD ~1400 to 1550, coincides with the occurrence of reduced solar output, the Spörer event. Episodes of lower SSSs with marked minima at the onsets of the Dark Ages in Europe (AD ~500-600) and Little Ice Age (AD ~1400) are cyclically recurrent at intervals of 200-400 yr, and coincide with drier periods in Mexico. This may indicate that the tropical Atlantic evaporation-precipitation budget and SSSs are affected by a centennial-scale modulation involving the freshwater export (import) from (into) the Atlantic Ocean. Coeval changes recorded in the deep North Atlantic circulation indicate that low-latitude SSS anomalies may be advected polewards by the North Atlantic current system, thus affecting deep-ocean convection and strength of the thermohaline circulation. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Nyberg, J. Investigator : Malmgren, B.A. Investigator : Kuijpers, A. Investigator : Winter, A. 2002-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/2566 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prp12-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nyberg2002 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prb12-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prp12-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nyberg2002 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prb12-tab.txt English https://www.ncdc.noaa.gov/paleo/study/2566 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prp12-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nyberg2002 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/prb12-tab.txt Nyberg, J., B.A. Malmgren, A. Kuijpers, and A. Winter. 2002. A centennial-scale variability of tropical North Atlantic surface hydrography during the late Holocene. Palaeogeography, Palaeoclimatology, Palaeoecology 183:25-41. Nyberg, J., A. Kuijpers, B.A. Malmgren, and H. Kunzendorf. 2001. Late Holocene changes in precipitation and hydrography recorded in marine sediments from the northeastern Caribbean Sea. Quaternary Research 56:87-102. Malmgren, B.A., M. Kucera, J. Nyberg, and C. Waelbroeck. 2001. Comparison of statistical and artificial neural network techniques for estimating past sea-surface temperatures from planktonic foraminifer census data. Paleoceanography 16(5):520-530. START YEAR: 1817 14C yr BP * END YEAR: -43 14C yr BP -66.6 17.88 -66.6 17.88