Dongdao Island 1000 Year Grain Size and Stable Isotope Data Yan, H.; Sun, L.; Oppo, D.W.; Wang, Y.; Liu, Z.; Xie, Z.; Liu, X.; Cheng, W. Yan, H. Sun, L. Oppo, D.W. Wang, Y. Liu, Z. Xie, Z. Liu, X. Cheng, W. ENSO Intertropical Convergence Zone (ITCZ) earth science/paleoclimate/paleolimnology (delta 13C,ostracod,null,per mil VPDB,null,paleolimnology,null,null,N,Cyprinotus cingalensis) earth science/paleoclimate/paleolimnology (grain size mean,sediment,null,micrometer,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (delta 13C,ostracod,one standard error,per mil VPDB,null,paleolimnology,null,null,N,Cyprinotus cingalensis) earth science/paleoclimate/paleolimnology (age,null,null,year Common Era,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (delta 18O,ostracod,one standard error,per mil VPDB,null,paleolimnology,null,null,N,Cyprinotus cingalensis) earth science/paleoclimate/paleolimnology (delta 18O,ostracod,null,per mil VPDB,null,paleolimnology,null,null,N,Cyprinotus cingalensis) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Cattle Pond>LATITUDE 16.7>LONGITUDE 112.7) The relative importance of north-south migrations of the intertropical convergence zone (ITCZ) versus El Niño-Southern Oscillation and its associated Pacific Walker Circulation (PWC) variability for past hydrological change in the western tropical Pacific is unclear. Here we show that north-south ITCZ migration was not the only mechanism of tropical Pacific hydrologic variability during the last millennium, and that PWC variability profoundly influenced tropical Pacific hydrology. We present hydrological reconstructions from Cattle Pond, Dongdao Island of the South China Sea, where multi-decadal rainfall and downcore grain size variations are correlated to the Southern Oscillation Index during the instrumental era. Our downcore grain size reconstructions indicate that this site received less precipitation during relatively warm periods, AD 1000-1400 and AD 1850-2000, compared with the cool period (AD 1400-1850). Including our new reconstructions in a synthesis of tropical Pacific records results in a spatial pattern of hydrologic variability that implicates the PWC. STUDY NOTES: Sediment mean grain size (MGS) and stable isotope (d13C and d18O) data from 3 cores collected in Cattle Pond, Dongdao Island, South China Sea, covering the last 1000 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Yan, H. Investigator : Sun, L. Investigator : Oppo, D.W. Investigator : Wang, Y. Investigator : Liu, Z. Investigator : Xie, Z. Investigator : Liu, X. Investigator : Cheng, W. 2011-05-22 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/11197 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.xls English https://www.ncdc.noaa.gov/paleo/study/11197 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/pacific/dongdao2011.xls Yan, H., L. Sun, D.W. Oppo, Y. Wang, Z. Liu, Z. Xie, X. Liu, and W. Cheng. 2011. South China Sea hydrological changes and Pacific Walker Circulation variations over the last millennium. Nature Communications, 2:293 DOI: 10.1038/ncomms1297 START YEAR: 1024 AD * END YEAR: 1996 AD 112.7 16.7 112.7 16.7