noaa-cave-17287 Yangkou Cave, Southwest China 124-206KYrBP Stalagmite d18O Data Li, T.-Y.; Shen, C.-C.; Huang, L.-J.; Jiang, X.-Y.; Yang, X.-L.; Mii, H.-S.; Lee, S.-Y.; Lo, L. Yangkou Cave, Southwest China 124-206KYrBP Stalagmite d18O Data 2014-10-08 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/17287 Investigator T.-Y. Li Investigator C.-C. Shen Investigator L.-J. Huang Investigator X.-Y. Jiang Investigator X.-L. Yang Investigator H.-S. Mii Investigator S.-Y. Lee Investigator L. Lo earth science paleoclimate speleothems depth,null,null,millimeter,null,speleothems,null,null,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 age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems oxygen isotopes geoscientificInformation Monsoon 206839 cal yr BP 95506 cal yr BP Complete 29.0333 29.0333 107.1833 107.1833 2140 2140 Continent Asia Eastern Asia China Yangkou Cave>LATITUDE 29.0333>LONGITUDE 107.1833 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 T.-Y. Li, C.-C. Shen, L.-J. Huang, X.-Y. Jiang, X.-L. Yang, H.-S. Mii, S.-Y. Lee, and L. Lo 2014 Climate of the Past 10 3 1211-1219 10.5194/cp-10-1211-2014 http://www.clim-past.net/10/1211/2014/cp-10-1211-2014.html

The orbital-timescale dynamics of the Quaternary Asian summer monsoons (ASM) are frequently attributed to precession-dominated northern hemispheric summer insolation. However, this long-term continuous ASM variability is inferred primarily from oxygen isotope records of stalagmites, mainly from Sanbao cave in mainland China, and may not provide a comprehensive picture of ASM evolution. A new spliced stalagmite oxygen isotope record from Yangkou cave tracks summer monsoon precipitation variation from 124 to 206 thousand years ago in Chongqing, southwest China. Our Yangkou record supports that the evolution of ASM was dominated by the North Hemisphere solar insolation on orbital timescales. When superimposed on the Sanbao record, the precipitation time series referred from Yangkou cave stalagmites supports the strong ASM periods at marine isotope stages (MIS) 6.3, 6.5, and 7.1 and weak ASM intervals at MIS 6.2, 6.4, and 7.0. This consistency confirms that ASM events affected most of mainland China. Except for the solar insolation forcing, the large amplitude of minimum d18O values in Yangkou record during glacial period, such as MIS 6.5, could stem from the enhanced prevailing Pacific trade wind and/or continental shelf exposure in the Indo-Pacific warm pool. STUDY NOTES: Oxygen isotope (d18O) data from 5 stalagmites collected in Yangkou Cave, Chongqing, southwest China, covering the interval from 124,000 to 206,000 years before present.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk23.txt Text Data File; Stalagmite YK23 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014.xls Excel Data File; All Yangkou Cave Stalagmite d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk12.txt Text Data File; Stalagmite YK12 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk47.txt Text Data File; Stalagmite YK47 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk05.txt Text Data File; Stalagmite YK05 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk61.txt Text Data File; Stalagmite YK61 d18O Data USA/NOAA DIF Version 9.8.4 2019-04-01 2019-04-01