noaa-cave-26510 Chongqing, Southwest China Holocene Stalagmite Oxygen Isotope Data Yang, X.-L.; Yang, H.; Wang, B.; Huang, L.-J.; Shen, C.-C.; Edwards, R.L.; Cheng, H. Chongqing, Southwest China Holocene Stalagmite Oxygen Isotope Data 2019-03-29 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/26510 Investigator X.-L. Yang Investigator H. Yang Investigator B. Wang Investigator L.-J. Huang Investigator C.-C. Shen Investigator R.L. Edwards Investigator H. Cheng earth science paleoclimate speleothems oxygen isotopes geoscientificInformation Monsoon 11630 cal yr BP 20 cal yr BP Complete 29 29.7 106.2881 107.2 401 2132 Continent Asia Eastern Asia China Heifeng Cave>LATITUDE 29.0167>LONGITUDE 107.1792 Continent Asia Eastern Asia China Shizi Cave>LATITUDE 29.6822>LONGITUDE 106.2881 Continent Asia Eastern Asia China Chongqing>LATITUDE >LONGITUDE Continent Asia Eastern Asia China Jinfo Cave>LATITUDE 29.0167>LONGITUDE 107.1792 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 Xunlin Yang, Hong Yang, Baoyan Wang, Li-Jung Huang, Chuan-Chou Shen, R. Lawrence Edwards, Hai Cheng 2019 The Holocene 10.1177/0959683619831433 https://journals.sagepub.com/doi/10.1177/0959683619831433

The timing and duration of the Holocene East Asian summer monsoon (EASM) maximum and the interpretation of Chinese stalagmite d18O records have long been disputed. Notably, interpretations of Holocene EASM variations are frequently based on a single record or study area and are often contradictory. In this study, we conducted stable isotope analyses of four Holocene stalagmites from Chongqing, southwest China. The results reveal differences in the timing of the Holocene EASM maximum and to try to resolve the inconsistency we analyzed and statistically integrated a total of 16 Holocene stalagmite records from 14 caves in the EASM region. The resulting synthesized Holocene stalagmite d18O (d18Osyn) record is in agreement with other EASM records and confirms that stalagmite d18O records are a valid indicator of EASM intensity, rather of local precipitation amount. The d18Osyn record shows that the EASM intensified rapidly from the onset of the early Holocene; notably, however, there were distinct EASM oscillations in the early Holocene, consisting of three abrupt millennial-scale events. This indicates that, contrary to several previous interpretations, the early Holocene EASM was unstable. Subsequently, during 8-6 kyr BP, the EASM was relatively stable and strong, with the strongest monsoon occurring during 8-7 kyr BP. This evidence of a stable and strong mid-Holocene EASM in eastern China is in accord with the classical view of a mid-Holocene Optimum in China. STUDY NOTES: Oxygen isotope (d18O) data from 4 Holocene stalagmites collected from three caves in Chongqing, southwest China. Included are data from stalagmite QM09 from Shizi Cave, stalagmites J12 and J13 from Jinfo Cave, stalagmite HF01 from Heifeng Cave, plus stacked data from all 4 Chongqing stalagmites.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/jinfo2019j13d18o.txt NOAA Template File; Jinfo Cave Stalagmite J13 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/jinfo2019j12d18o.txt NOAA Template File; Jinfo Cave Stalagmite J12 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/chongqing2019d18o.txt NOAA Template File; Chongqing Stacked d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/shizi2019qm09d18o.txt NOAA Template File; Shizi Cave Stalagmite QM09 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/heifeng2019hf01d18o.txt NOAA Template File; Heifeng Cave Stalagmite HF01 d18O Data USA/NOAA DIF Version 9.8.4 2019-04-01 2019-04-01