noaa-ocean-17716 Labrador Current Sea Surface Temperature Reconstruction over the last 2000 years Sicre, M.-A.; Weckström, K.; Seidenkrantz, M.-S.; Kuijpers, A.; Benetti, M.; Massé, G.; Ezat, U.; Schmidt, S.; Bouloubassi, I.; Olsen, J.; Khodri, M.; Mignot, J. Labrador Current Sea Surface Temperature Reconstruction over the last 2000 years 2015-01-12 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/17716 Investigator M.-A. Sicre Investigator K. Weckström Investigator M.-S. Seidenkrantz Investigator A. Kuijpers Investigator M. Benetti Investigator G. Massé Investigator U. Ezat Investigator S. Schmidt Investigator I. Bouloubassi Investigator J. Olsen Investigator M. Khodri Investigator J. Mignot earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,alkenone unsaturation index,null,degree Celsius,spring,climate reconstructions|paleoceanography,null,null,N,Calibration: PRA1988; Alkenone calibration to SST (Prahl et al. 1988) late spring earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,null earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,alkenone unsaturation index,null,degree Celsius,spring,climate reconstructions|paleoceanography,null,null,N,Calibration: PRA1988; Alkenone calibration to SST (Prahl et al. 1988) early spring earth science paleoclimate paleoceanography age,null,null,year Common Era,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean reconstruction geoscientificInformation Sea Surface Temperature Reconstruction 6000 cal yr BP -56 cal yr BP Complete 47.133 48.733 -54.6 -53.483 -329 -230 Ocean Atlantic Ocean North Atlantic Ocean AI07-12G and AI07-11BC>LATITUDE 47.183>LONGITUDE -54.575 Ocean Atlantic Ocean North Atlantic Ocean AI07-03G and AI07-04BC>LATITUDE 48.733>LONGITUDE -53.483 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Sicre, M.-A., K. Weckström, M.-S. Seidenkrantz, A. Kuijpers, M. Benetti, G. Massé, U. Ezat, S. Schmidt, I. Bouloubassi, J. Olsen, M. Khodri, J. Mignot 2014 Earth and Planetary Science Letters 400 26-32 10.1016/j.epsl.2014.05.016

The ice-loaded Labrador Current (LC) is an important component of the western North Atlantic circulation that influences the position and strength of the northern limb of the North Atlantic Current (NAC). This flow of cold and fresh Polar Waters originating from the Arctic has a marked impact on the North Atlantic climate, yet little is known about its variability beyond the instrumental period. In this study, we present the first sub-decadal alkenone-based 2000-year long sea-surface temperature (SST) records from the western Labrador Sea, a climatically crucial region at the boundary between the LC and the NAC. Our results show a clear link between the LC strength and the Northern Annular Mode (NAM),with a stronger NAM and a more vigorous LC during the Medieval Climate Anomaly (MCA). This suggests enhanced LC activity upon future global warming with implications for the Atlantic Meridional overturning circulation (AMOC). STUDY NOTES: SST based on alkenones in the flow past of the Labrador Current; SST variability strongly linked to the Northern Annular Mode with +NaM giving low SST. AI07-12G (47.133 N, 54.55 W) and AI07-11BC (47.233 N, 54.6 W) are from Placentia Bay, southeastern Newfoundland. AI07-03G and AI07-04BC are from Bonavista Bay, northeastern Newfoundland. Provided Keywords: Sea surface temperature, alkenones, Northern Annular Mode, Labrador Current Strength, Gulf Stream, Atlantic Meridional Overturning Circulation (AMOC), Little Ice Age, Medieval Climate Anomaly, seesaw pattern, 2000 years

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sicre2014/sicre2014-03g-04bc.txt Formatted Text File; AI07-03G and AI07-04BC SST GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sicre2014/sicre2014-12g-11bc.txt Formatted Text File; AI07-12G and AI07-11BC SST USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11