noaa-ocean-24250 North Pacific Holocene Alkenone Sea Surface Temperature Reconstruction Isono, D.; Yamamoto, M.; Irino, T.; Oba, T.; Murayama, M.; Nakamura, T.; Kawahata, H. North Pacific Holocene Alkenone Sea Surface Temperature Reconstruction 2018-05-27 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/24250 Investigator D. Isono Investigator M. Yamamoto Investigator T. Irino Investigator T. Oba Investigator M. Murayama Investigator T. Nakamura Investigator H. Kawahata earth science paleoclimate climate reconstructions|paleoceanography sample identification,null,null,null,null,climate reconstructions|paleoceanography,null,null,C,null earth science paleoclimate climate reconstructions|paleoceanography age,null,null,calendar kiloyear before present,null,climate reconstructions|paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography depth,null,null,centimeter,null,climate reconstructions|paleoceanography,null,null,N,sample midpoint depth 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,sediment,null,dimensionless,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean biomarkers geoscientificInformation Sea Surface Temperature Reconstruction 10970 cal yr BP -40 cal yr BP Complete 36.02 36.02 141.78 141.78 -2224 -2224 Ocean Pacific Ocean North Pacific Ocean MD01-2421>LATITUDE 36.02>LONGITUDE 141.78 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 Dai Isono, Masanobu Yamamoto, Tomohisa Irino, Tadamichi Oba, Masafumi Murayama, Toshio Nakamura, Hodaka Kawahata 2009 Geology 37 7 591-594 10.1130/G25667A.1 https://pubs.geoscienceworld.org/gsa/geology/article/37/7/591/30001/The-1500year-climate-oscillation-in-the

Suborbital climate variability during the last glacial period is suggested to have involved a 1500-year pacing cycle, but the expression and spatial distribution of the ~1500-year oscillation during interglacials remains unclear. We generated a multidecade resolution record of alkenone sea surface temperature (SST) in the northwestern Pacific off central Japan during the Holocene. The SST record showed centennial and millennial variability with an amplitude of ~1C throughout the entire Holocene. Spectral analysis for SST variation revealed a statistically significant peak with 1470-year periodicity. The SST variation partly correlated with the variations of ice-rafted hematite-stained grain content in North Atlantic sediments. These findings indicate that the mean latitude of the Kuroshio Extension has varied on a 1500-year cycle, and suggest that a climatic link exists between the North Pacific gyre system and the high-latitude North Atlantic thermohaline circulation. The regular pacing at 1500-year intervals seen throughout both the Holocene and the last glacial period suggests that the oscillation was a response to external forcing. STUDY NOTES: Alkenone unsaturation index and sea surface temperature reconstruction for 3 co-located North Pacific sediment cores over the Holocene

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/isono2009/isono2009.txt NOAA Template File; North Pacific Holocene Alkenone SST USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11