noaa-cave-23212 Mawmluh Cave, India 16-6 KYrBP Speleothem Stable Isotope Data Lechleitner, F.A.; Breitenbach, S.F.M.; Cheng, H.; Plessen, B.; Rehfeld, K.; Goswami, BH.; Marwan, N.; Eroglu, D.; Adkins, J.F.; Haug, G.H. Mawmluh Cave, India 16-6 KYrBP Speleothem Stable Isotope Data 2017-12-07 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23212 Investigator F.A. Lechleitner Investigator S.F.M. Breitenbach Investigator H. Cheng Investigator B. Plessen Investigator K. Rehfeld Investigator BH. Goswami Investigator N. Marwan Investigator D. Eroglu Investigator J.F. Adkins Investigator G.H. Haug earth science paleoclimate speleothems depth,null,null,millimeter,null,speleothems,null,null,N,null earth science paleoclimate speleothems delta 13C,calcite,95% confidence interval lower bound,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems delta 18O,calcite,95% confidence interval lower bound,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,original d18O earth science paleoclimate speleothems delta 18O,calcite,95% confidence interval lower bound,per mil VPDB,null,speleothems,corrected,isotope ratio mass spectrometry,N,Corrected for ice volume changes earth science paleoclimate speleothems delta 13C,calcite,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems delta 13C,calcite,95% confidence interval upper bound,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems delta 18O,calcite,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,original d18O earth science paleoclimate speleothems delta 18O,calcite,95% confidence interval upper bound,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,original d18O earth science paleoclimate speleothems delta 18O,calcite,null,per mil VPDB,null,speleothems,corrected,isotope ratio mass spectrometry,N,Corrected for ice volume changes earth science paleoclimate speleothems delta 18O,calcite,95% confidence interval upper bound,per mil VPDB,null,speleothems,corrected,isotope ratio mass spectrometry,N,Corrected for ice volume changes earth science paleoclimate speleothems carbon isotopes earth science paleoclimate speleothems oxygen isotopes geoscientificInformation Monsoon 15897 cal yr BP 6510 cal yr BP Complete 25.2622 25.2622 91.8167 91.8167 1290 1290 Continent Asia Southcentral Asia India Mawmluh Cave>LATITUDE 25.2622>LONGITUDE 91.8167 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Franziska A. Lechleitner, Sebastian F.M. Breitenbach, Hai Cheng, Birgit Plessen, Kira Rehfeld, Bedartha Goswami, Norbert Marwan, Deniz Eroglu, Jess Adkins, and Gerald Haug 2017 Quaternary Research 88 3 458-471 10.1017/qua.2017.72 https://www.cambridge.org/core/journals/quaternary-research/article/climatic-and-incave-influences-on-18o-and-13c-in-a-stalagmite-from-northeastern-india-through-the-last-deglaciation/48CC429FE2174B261AF342A2F6171F89

Northeastern (NE) India experiences extraordinarily pronounced seasonal climate, governed by the Indian summer monsoon (ISM). The vulnerability of this region to floods and droughts calls for detailed and highly resolved paleoclimate reconstructions to assess the recurrence rate and driving factors of ISM changes. We use stable oxygen and carbon isotope ratios (d18O and d13C) from stalagmite MAW-6 from Mawmluh Cave to infer climate and environmental conditions in NE India over the last deglaciation (16-6ka). We interpret stalagmite d18O as reflecting ISM strength, whereas d13C appears to be driven by local hydroclimate conditions. Pronounced shifts in ISM strength over the deglaciation are apparent from the d18O record, similarly to other records from monsoonal Asia. The ISM is weaker during the late glacial (LG) period and the Younger Dryas, and stronger during the Bolling-Allerød and Holocene. Local conditions inferred from the d13C record appear to have changed less substantially over time, possibly related to the masking effect of changing precipitation seasonality. Time series analysis of the d18O record reveals more chaotic conditions during the late glacial and higher predictability during the Holocene, likely related to the strengthening of the seasonal recurrence of the ISM with the onset of the Holocene. STUDY NOTES: Stalagmite stable isotope (d18O, d13C) data for reconstruction of Indian Summer Monsoon strength and local hydrology at Mawmluh Cave, NE India, over the last deglaciation.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/mawmluh2017.txt NOAA Template File; Mawmluh Cave Stable Isotope Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11