2.8 million years of alkenone and TEX86 data and surface and subsurface temperature in the northern South China Sea Li, D.; Zhao, M.; Tian, J. Li, D. Zhao, M. Tian, J. Sea Surface Temperature Reconstruction earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,glycerol dialkyl glycerol tetraether index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,calculated after Jia et al. (2012)) 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 (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,calculated after Mueller et al.(1998)) earth science/paleoclimate/paleoceanography (alkenone unsaturation index Uk37 prime,null,null,dimensionless,null,paleoceanography,null,null,N,calculated after Prahl and Wakeham (1987)) earth science/paleoclimate/paleoceanography (tetraether index of 86 carbon atoms,null,null,dimensionless,null,paleoceanography,null,null,N,calculated after Schouten et al. (2002)) earth science/paleoclimate/climate reconstructions|paleoceanography (depth,null,null,meter,null,climate reconstructions|paleoceanography,null,null,N,mcd) earth science/paleoclimate/climate reconstructions|paleoceanography (sample identification,null,null,null,null,climate reconstructions|paleoceanography,null,null,C,core name) earth science/paleoclimate/paleoceanography (branched and isoprenoid tetraether index,null,null,dimensionless,null,paleoceanography,null,null,N,calculated after Hopmans et al. (2004)) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (ODP 1148>LATITUDE 18.836>LONGITUDE 116.566) Variability of the East Asian winter monsoon (EAWM), stronger during glacials and weaker during interglacials, has been tightly linked to the wax and wane of the Northern Hemisphere ice sheets (NHIS) via the Siberian High over the last 2.8 million years (Myr). However, the long eccentricity cycle (ca. 400 kyr) in the EAWM record from the late Pliocene to early-Pleistocene (2.8Ƀ1.2 Ma) could not be linked to NHIS changes, which lacked the long eccentricity cycle in the Pleistocene. Here, we present the first low latitude EAWM record of the last 2.8 Myr using surface and subsurface temperature difference from the northern South China Sea to evaluate interactions between tropical ocean and EAWM changes. The results show that the EAWM variability displayed significant 400 kyr cycle between 2.8 Ma and 1.2 Ma, with weak (strong) EAWM during high (low) earth orbital eccentricity state. A super El Ni?oɃSouthern Oscillation (ENSO) proxy record, calculated using west-east equatorial Pacific sea surface temperature differences, revealed 400 kyr cycles throughout the last 2.8 Myr with warm phase during high eccentricity state. Thus, we propose that super ENSO mean state strongly modulated the EAWM strength through remote forcing to generate the 400 kyr cycle between 2.8 Ma and 1.2 Ma, while low NHIS volume was not sufficient to dominate the EAWM variation as it did over the last 0.9 Myr with 100 kyr cycles in dominance. STUDY NOTES: Surface and subsurface temperature difference from the northern South China Sea was used to reconstruct east Asian winter monsoon.The 400 kyr cycle in east Asian winter monsoon was generated from remote forcing by super tropical Pacific ENSO. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Li, D. Investigator : Zhao, M. Investigator : Tian, J. 2017-08-28 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22588 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/li2017/li2017.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/li2017/li2017.txt English https://www.ncdc.noaa.gov/paleo/study/22588 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/li2017/li2017.txt Li, D., M. Zhao, and J. Tian2017Low-high latitude interaction forcing on the evolution of the 400 kyr cycle in East Asian winter monsoon records during the last 2.8 MyrQuaternary Science Reviews17272-8210.1016/j.quascirev.2017.08.005http://www.sciencedirect.com/science/article/pii/S0277379117300914 START YEAR: 2785481 cal yr BP * END YEAR: 257 cal yr BP 116.566 18.836 116.566 18.836