noaa-ocean-2639 Northwest Pacific Stable Isotope Data and SSS/SST Reconstructions Oba, T.; Murayama, M. Northwest Pacific Stable Isotope Data and SSS/SST Reconstructions 2004-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/2639 Investigator T. Oba Investigator M. Murayama earth science paleoclimate paleoceanography delta 18O,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Uvigerina senticosa earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,delta 18O,null,degree Celsius,null,climate reconstructions|paleoceanography,corrected,null,N,corrected for LGM bottom water temperature earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Uvigerina akitaensis earth science paleoclimate climate reconstructions|paleoceanography sea surface temperature,delta 18O,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Globorotalia inflata,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Bulimina aculeata earth science paleoclimate climate reconstructions|paleoceanography salinity,delta 18O|sea surface,null,practical salinity unit,null,climate reconstructions|paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Elphidium batialis earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Uvigerina senticosa earth science paleoclimate paleoceanography delta 18O,Globorotalia inflata,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Bulimina aculeata earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Elphidium batialis earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,benthic foraminifer,null,per mil PDB,null,paleoceanography,null,null,N,Uvigerina akitaensis earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean carbon isotopes earth science paleoclimate paleocean reconstruction earth science paleoclimate paleocean age control geoscientificInformation Sea Surface Temperature Reconstruction 20719 14C yr BP 0 14C yr BP 24908 cal yr BP 0 cal yr BP Complete 36.02 42.45 141.78 144.32 -2630 -1083 Ocean Pacific Ocean North Pacific Ocean KH94-3,LM-8>LATITUDE 38.88>LONGITUDE 143.37 Ocean Pacific Ocean North Pacific Ocean MD01-2421>LATITUDE 36.02>LONGITUDE 141.78 Ocean Pacific Ocean North Pacific Ocean KT90-9,21>LATITUDE 42.45>LONGITUDE 144.32 Ocean Pacific Ocean North Pacific Ocean CH84-04>LATITUDE 36.77>LONGITUDE 142.22 Ocean Pacific Ocean North Pacific Ocean KT90-9,5>LATITUDE 41.12>LONGITUDE 143.52 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 Oba, T. and M. Murayama. 2004. Sea-surface temperature and salinity changes in the northwest Pacific since the Last Glacial Maximum. Journal of Quaternary Science, 19(4), 335 - 346.

The oxygen isotope records of both benthic and planktonic Foraminifera in five piston cores, collected from the region between the Oyashio and Kuroshio Currents near Japan, clearly show the marked latitudinal shifts of these two currents during the past 25 kyr. Under the present hydrographic condition, a clear relationship between the sea-surface temperature (SST) and oxygen isotope differences from benthic to planktonic Foraminifera is observed in this region. Using this relationship, we find decreased SSTs of 12-13°C (maximum 15°C) in the southernmost core site at the Last Glacial Maximum (LGM), indicating the Oyashio Current shifted southward. The SSTs at the southern two core sites abruptly increased more than 10°C at 10-11 ka, suggesting the Kuroshio Current shifted northward over these sites at 10-11 ka. In contrast, the northern two core sites have remained under the influence of the cold Oyashio Current for the past 25 kyr. With the reasonable estimate of bottom-water temperature decrease of 2.5°C at the LGM, the SSTs estimated by this new method give exactly the same SST values calculated from Mg/Ca ratio of planktonic Foraminifera, allowing palaeosea-surface salinities to be reconstructed. The result suggests that the ice volume effect was 1.0 ą 0.1 per mil at the LGM.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k90-9_21-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md1-2421-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/kt90-9_5-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/ch8404ob-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k943_lm8-tab.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/oba2004 USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11