Bittoo Cave, India 280,000 Year Oxygen and Carbon Isotope Data Kathayat, G.; Cheng, H.; Sinha, A.; Spötl, C.; Edwards, R.L.; Zhang, H.; Li, X.; Yi, L.; Ning, Y.F.; Cai, Y.; Lui, W.L.; Breitenbach, S.F.M. Kathayat, G. Cheng, H. Sinha, A. Spötl, C. Edwards, R.L. Zhang, H. Li, X. Yi, L. Ning, Y.F. Cai, Y. Lui, W.L. Breitenbach, S.F.M. Monsoon earth science/paleoclimate/speleothems (depth,null,null,millimeter,null,speleothems,null,null,N,distance from top) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,composited,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (sample identification,null,null,null,null,speleothems,null,null,N,stalagmite ID) earth science/paleoclimate/speleothems (age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,composited,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems earth science/paleoclimate/speleothems (Bittoo Cave>LATITUDE 30.7903>LONGITUDE 77.7764) The Indian summer monsoon (ISM) monsoon is critical to billions of people living in the region. Yet, significant debates remain on primary ISM drivers on millennial-orbital timescales. Here, we use speleothem oxygen isotope (d18O) data from Bittoo cave, Northern India to reconstruct ISM variability over the past 280,000 years. We find strong coherence between North Indian and Chinese speleothem d18O records from the East Asian monsoon domain, suggesting that both Asian monsoon subsystems exhibit a coupled response to changes in Northern Hemisphere summer insolation (NHSI) without significant temporal lags, supporting the view that the tropical-subtropical monsoon variability is driven directly by precession-induced changes in NHSI. Comparisons of the North Indian record with both Antarctic ice core and sea-surface temperature records from the southern Indian Ocean over the last glacial period do not suggest a dominant role of Southern Hemisphere climate processes in regulating the ISM variability on millennial-orbital timescales. STUDY NOTES: Stable isotope (d18O and d13C) data from speleothems collected in Bittoo Cave, Himachal Pradesh state, North India, for the past 280,000 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kathayat, G. Investigator : Cheng, H. Investigator : Sinha, A. Investigator : Spötl, C. Investigator : Edwards, R.L. Investigator : Zhang, H. Investigator : Li, X. Investigator : Yi, L. Investigator : Ning, Y.F. Investigator : Cai, Y. Investigator : Lui, W.L. Investigator : Breitenbach, S.F.M. 2016-08-30 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/20449 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016iso.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016composite.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016iso.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016composite.txt English https://www.ncdc.noaa.gov/paleo/study/20449 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016iso.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/bittoo2016composite.txt Gayatri Kathayat, Hai Cheng, Ashish Sinha, Christoph Spötl, R. Lawrence Edwards, Haiwei Zhang, Xianglei Li, Liang Yi, Youfeng Ning, Yanjun Cai, Weiguo Lui Lui, Sebastian F.M. Breitenbach2016Indian monsoon variability on millennial-orbital timescalesScientific Reports24374610.1038/srep24374http://www.nature.com/articles/srep24374 START YEAR: 283817 cal yr BP * END YEAR: 874 cal yr BP 77.7764 30.7903 77.7764 30.7903