Laurentian Fan 2000 Year Planktonic Foraminifera Census Data Keigwin, L.D.; Pickart, R.S. Keigwin, L.D. Pickart, R.S. North Atlantic Oscillation earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,depth interval) earth science/paleoclimate/paleoceanography (identified foraminifer,null,null,count,null,paleoceanography,null,null,N,other planktics) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (carbonate,sediment,null,percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (Neogloboquadrina pachyderma,null,null,count,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (notes,null,null,null,null,paleoceanography,null,null,N,Split 1/n) earth science/paleoclimate/paleoceanography (chroma,sediment,null,dimensionless,null,paleoceanography,null,null,N,sediment redness) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean (OCE326-MC13A>LATITUDE 43.0833>LONGITUDE -55.8) (OCE326-MC25A>LATITUDE 43.45>LONGITUDE -54.8167) The strength and position of surface and deep currents in the slope water south of Newfoundland are thought to vary as a coupled system in relation to the dipole in atmospheric sea level pressure known as the North Atlantic oscillation (NAO). Paleoceanographic data from the Laurentian Fan, used as a proxy for sea surface temperature, reveal that surface slope waters north of the Gulf Stream experienced warming during the Little Ice Age of the 16th to 19th centuries and support the notion of an NAO-driven coupled system. The NAO may be a useful model for millennial-scale ocean variability during interglacial climate states. STUDY NOTES: High resolution planktonic foraminifera census and geochemical data from two cores in the Laurentian Fan region of the North Atlantic, for the last 2000 years. The abundance of the left-coiling form of Neogloboquadrina pachyderma (N.pachy.s.), as a percentage of the total planktonic foraminiferal fauna in the >150um size fraction, is utilized as a paleotemperature proxy. Data include N.pachy.s. and total planktonic foraminifera counts, plus carbonate content and sediment "redness" measurements. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Keigwin, L.D. Investigator : Pickart, R.S. 2011-04-22 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/10890 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.xls English https://www.ncdc.noaa.gov/paleo/study/10890 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/keigwin1999b/keigwin1999b.xls Keigwin, L.D. and R.S. Pickart. 1999. Slope Water Current over the Laurentian Fan on Interannual to Millennial Time Scales. Science, Vol. 286, no. 5439, pp. 520-523, 15 October 1999. DOI: 10.1126/science.286.5439.520 START YEAR: 1948 cal yr BP * END YEAR: 17 cal yr BP -55.8 43.0833 -54.8167 43.45