Northwest Pacific Stable Isotope Data and SSS/SST Reconstructions Oba, T.; Murayama, M. Oba, T. Murayama, M. Sea Surface Temperature Reconstruction 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 earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (KH94-3,LM-8>LATITUDE 38.88>LONGITUDE 143.37) (MD01-2421>LATITUDE 36.02>LONGITUDE 141.78) (KT90-9,21>LATITUDE 42.45>LONGITUDE 144.32) (CH84-04>LATITUDE 36.77>LONGITUDE 142.22) (KT90-9,5>LATITUDE 41.12>LONGITUDE 143.52) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Oba, T. Investigator : Murayama, M. 2004-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/2639 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k90-9_21-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md1-2421-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/kt90-9_5-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/ch8404ob-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k943_lm8-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/oba2004 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k90-9_21-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md1-2421-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/kt90-9_5-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/ch8404ob-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k943_lm8-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/oba2004 English https://www.ncdc.noaa.gov/paleo/study/2639 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k90-9_21-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md1-2421-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/kt90-9_5-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/ch8404ob-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/k943_lm8-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/oba2004 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. START YEAR: 20719 14C yr BP * END YEAR: 0 14C yr BP 141.78 36.02 144.32 42.45