noaa-cave-24710 Shenqi Cave, Southeastern Tibetan Plateau 2300 Year Speleothem d18O Data Tan, L.; Cai, Y.; Cheng, H.; Edwards, R.L.; Lan, J.; Zhang, H.; Li, D.; Ma, L.; Zhao, P.; Gao, Y. Shenqi Cave, Southeastern Tibetan Plateau 2300 Year Speleothem d18O Data 2018-07-24 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/24710 Investigator L. Tan Investigator Y. Cai Investigator H. Cheng Investigator R.L. Edwards Investigator J. Lan Investigator H. Zhang Investigator D. Li Investigator L. Ma Investigator P. Zhao Investigator Y. Gao earth science paleoclimate speleothems delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,null,isotope ratio mass spectrometry,N,null earth science paleoclimate climate reconstructions|speleothems age,null,null,year Common Era,null,climate reconstructions|speleothems,null,null,N,null earth science paleoclimate climate reconstructions|speleothems precipitation,delta 18O,null,dimensionless,null,climate reconstructions|speleothems,null,principal component analysis,N,Precipitation Index for southwest China earth science paleoclimate speleothems age,null,null,year Common Era,null,speleothems,null,null,N,null earth science paleoclimate speleothems earth science paleoclimate speleothems oxygen isotopes geoscientificInformation Monsoon -317 AD 2010 AD 2267 cal yr BP -60 cal yr BP Complete 28.93 28.93 103.1 103.1 1407 1407 Continent Asia Eastern Asia China Shenqi Cave>LATITUDE 28.93>LONGITUDE 103.1 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 Liangcheng Tan, Yanjun Cai, Hai Cheng, R. Lawrence Edwards, Jianghu Lan, Haiwei Zhang, Dong Li, Le Ma, Peipei Zhao, Yongli Gao 2018 Quaternary Science Reviews 195 122-132 10.1016/j.quascirev.2018.07.021 https://www.sciencedirect.com/science/article/pii/S0277379118302920

Climate changes on Southeastern Tibetan Plateau have important impacts on social and economic development, as well as the ecosystem of southwestern China and Indo-China Peninsula. Here, we collected two stalagmites from Shenqi (Miraculous) cave in southern Sichuan, China. The stalagmite d18O record shows good coherence with local instrumental rainfall record, as well as tree ring- and pollen-based moisture reconstructions from southeastern Tibetan Plateau during overlapped time periods. As a result, we reconstructed high-resolution (~4.9 yrs) monsoon precipitation variations on southeastern Tibetan Plateau over the past 2300 years by using the combined stalagmite d18O record. The result reveals an overall decreasing precipitation trend, with two most notable wet periods occurred in 60-280 AD and 370-510 AD. The most remarkably dry period is the recent 200 years. Some decadal scale wet and dry intervals were also identified. The abnormal drought during 1160-1245 AD might have accelerated Dali kingdom's demise at 1253 AD. Power spectrum analysis indicated significant 373-, 187-, 22-, 12- and 11- yr cycles in our stalagmite record, suggesting the impact of solar activity. Increased monsoon precipitation on southeastern TP was observed in solar activity minima during the last millennium. We further synthesized an integrated precipitation record for southwestern China and discussed spatial patterns of precipitation over China during the last two millennia. The comparisons confirm a "dry southern and wet northern" pattern in monsoonal China during the Medieval Warm Period and a "wet southern and dry northern" pattern during the Little Ice Age and Dark Age Cold Period. Solar activity, the strength of westerly jet and summer monsoon, as well as the SST of tropical Indo-Pacific might play important roles on the rainfall spatial patterns over monsoonal China during the last 2000 years. STUDY NOTES: Speleothem oxygen isotope (d18O) records from Shenqi Cave, southeastern Tibetan Plateau over the past 2300 years, plus reconstructed precipitation index (PI) for southwest China.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/shenqi2018pi.txt NOAA Template File; Precipitation Index Reconstruction for Southwest China GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/shenqi2018sq1.txt NOAA Template File; Shenqi Cave Speleothem SQ1 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/shenqi2018sq1-sq7.txt NOAA Template File; Shenqi Cave Combined Speleothem SQ1 and SQ7 d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/shenqi2018sq7.txt NOAA Template File; Shenqi Cave Speleothem SQ7 d18O Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11