Lake Huguang Maar 16KYr High Resolution Ti and Magnetic Data Yancheva, G.; Nowaczyk, N.R.; Mingram, J.; Dulski, P.; Schettler, G.; Negendank, J.F.W.; Liu, J.; Sigman, D.M.; Peterson, L.C.; Haug, G.H. Yancheva, G. Nowaczyk, N.R. Mingram, J. Dulski, P. Schettler, G. Negendank, J.F.W. Liu, J. Sigman, D.M. Peterson, L.C. Haug, G.H. earth science/paleoclimate/paleolimnology (manganese/iron,sediment,null,dimensionless,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,units x 10-3) earth science/paleoclimate/paleolimnology (S-ratio,sediment,null,dimensionless,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (organic carbon,sediment,null,weight percent,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,magnetic susceptibility measurement,N,x10-6 units) earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (sulfur,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleolimnology (titanium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleolimnology (titanium,sediment,null,count per second,null,paleolimnology,smoothed,energy-dispersive x-ray fluorescence spectroscopy,N,smoothed with a 9 point triangular window) earth science/paleoclimate/paleolimnology (iron,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleolimnology (biogenic silica,sediment,null,milligram per square centimeter per year,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (manganese/titanium,sediment,null,dimensionless,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,units x 10-3) earth science/paleoclimate/paleolimnology (sulfur,sediment,null,weight percent,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (biogenic silica,sediment,null,weight percent,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (age,null,null,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (manganese,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleolimnology (Lake Huguang Maar>LATITUDE 21.15>LONGITUDE 110.283) The Asian-Australian monsoon is an important component of the Earth's climate system that influences the societal and economic activity of roughly half the world's population. The past strength of the rain-bearing East Asian summer monsoon can be reconstructed with archives such as cave deposits, but the winter monsoon has no such signature in the hydrological cycle and has thus proved difficult to reconstruct. Here we present high- resolution records of the magnetic properties and the titanium content of the sediments of Lake Huguang Maar in coastal southeast China over the past 16,000 years, which we use as proxies for the strength of the winter monsoon winds. We find evidence for stronger winter monsoon winds before the Bølling-Allerød warming, during the Younger Dryas episode and during the middle and late Holocene, when cave stalagmites suggest weaker summer monsoons. We conclude that this anticorrelation is best explained by migrations in the intertropical convergence zone. Similar migrations of the intertropical convergence zone have been observed in Central America for the period AD 700 to 900, suggesting global climatic changes at that time. From the coincidence in timing, we suggest that these migrations in the tropical rain belt could have contributed to the declines of both the Tang dynasty in China and the Classic Maya in Central America. STUDY NOTES: High resolution titanium and magnetic sediment data from Lake Huguang Maar, southeast China. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Yancheva, G. Investigator : Nowaczyk, N.R. Investigator : Mingram, J. Investigator : Dulski, P. Investigator : Schettler, G. Investigator : Negendank, J.F.W. Investigator : Liu, J. Investigator : Sigman, D.M. Investigator : Peterson, L.C. Investigator : Haug, G.H. 2007-01-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/5450 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.txt English https://www.ncdc.noaa.gov/paleo/study/5450 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/china/huguang-maar2007.txt Yancheva, G., N.R. Nowaczyk, J. Mingram, P. Dulski, G. Schettler, J.F.W. Negendank, J. Liu, D.M. Sigman, L.C. Peterson, G.H. Haug. 2007. Influence of the intertropical convergence zone on the East Asian monsoon. Nature Vol 445, pp. 74-77, 4 January 2007 START YEAR: 16453 cal yr BP * END YEAR: 102 cal yr BP 110.283 21.15 110.283 21.15