{"NOAAStudyId":"11177","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2011-06-02","dataPublisher":"NOAA","dataType":"SPELEOTHEMS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-11177.xml","doi":null,"earliestYearBP":1812,"earliestYearCE":138,"entryId":"noaa-cave-11177","funding":[{"fundingAgency":"National Basic Research Program of China","fundingGrant":"2010CB833405"},{"fundingAgency":"National Science Foundation of China ","fundingGrant":"40773009"},{"fundingAgency":"State Key Laboratory of Loess and Quaternary Geology of China","fundingGrant":"51QDJF0902101, SKLLQG0825"},{"fundingAgency":"US National Science Foundation","fundingGrant":"0502535"},{"fundingAgency":"Gary Comer Science and Education Foundation","fundingGrant":"CC8"}],"investigators":"Tan, L.; Cai, Y.; An, Z.; Edwards, R.L.; Cheng, H.; Shen, C.-C.; Zhang, H.","mostRecentYearBP":-32,"mostRecentYearCE":1982,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/11177","originalSource":null,"publication":[{"abstract":"We developed a composite oxygen isotopic record of cave calcite \nfor the last 1860 years based on three stalagmites from the Huangye \nCave in eastern Gansu Province, northern China. The d18O values \nreflect monsoon precipitation changes, with lower d18O values \nrepresenting higher precipitation and vice versa. Three intervals \nof high precipitation were identified at AD 138-450, AD 730-1200, \nand AD 1860-1960. Two intervals of low precipitation occurred at \nAD 1320-1410 and AD 1530-1860. The reconstructed monsoon precipitation \nvariations correlate well with other records further east in the \neastern Yellow River Basin, suggesting synchronous precipitation \nchanges during the late Holocene in the semi-humid region of northern \nChina on decadal to centennial scales. Peak periods of warfare in \ndynastic transition times, such as at AD 391-420, AD 601-630, \nAD 1111-1140, AD 1351-1380, and AD 1621-1650, correspond to sharp \ndeclines in precipitation or temperature in semi-humid northern China, \nindicating a strong connection between climatic and societal changes. \nOur study suggests that climatic deterioration in semi-humid northern \nChina has played an important role in Chinese societal evolution. ","author":null,"citation":"Tan, L., Y. Cai, Z. An, R.L. Edwards, H. Cheng, C.-C. Shen, \rand H. Zhang. 2011\r. Centennial- to decadal-scale monsoon precipitation variability \rin the semi-humid region, northern China during the last 1860 years: \r\nRecords from stalagmites in Huangye Cave. \rThe Holocene, Vol. 21(2), 287-296.  \rDOI: 10.1177/0959683610378880","edition":null,"identifier":{"id":"10.1177/0959683610378880","type":"doi","url":"http://dx.doi.org/10.1177/0959683610378880"},"issue":null,"journal":"The Holocene","pages":null,"pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Centennial- to decadal-scale monsoon precipitation variability in the semi-humid region, northern China during the last 1860 years:  Records from stalagmites in Huangye Cave","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Monsoon"],"site":[{"NOAASiteId":"48123","geo":{"geoType":"Feature","geometry":{"coordinates":["33.5833","105.1167"],"type":"POINT"},"properties":{"easternmostLongitude":"105.1167","maxElevationMeters":"1650","minElevationMeters":"1650","northernmostLatitude":"33.5833","southernmostLatitude":"33.5833","westernmostLongitude":"105.1167"}},"locationName":"Continent>Asia>Eastern Asia>China","mappable":"Y","paleoData":[{"NOAADataTableId":"19752","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/huangye2011.txt","linkText":"huangye2011.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":"Stalagmite 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HY3","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Stalagmite HY3","cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"HY1+HY2+HY3","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/huangye2011.xls","linkText":"huangye2011.xls","urlDescription":"Speleothem","variables":[]}],"dataTableName":"HY1","dataTableNotes":null,"earliestYear":760,"earliestYearBP":1190,"earliestYearCE":760,"mostRecentYear":1982,"mostRecentYearBP":-32,"mostRecentYearCE":1982,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"19753","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/huangye2011.txt","linkText":"huangye2011.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":"Stalagmite HY1","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>sample identification"},{"cvAdditionalInfo":"Stalagmite 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spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"HY1+HY2+HY3","cvDataType":"SPELEOTHEMS","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"Stalagmite HY1","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":"Stalagmite HY1","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age 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mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"HY1+HY2+HY3","cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/huangye2011.xls","linkText":"huangye2011.xls","urlDescription":"Speleothem","variables":[]}],"dataTableName":"HY2","dataTableNotes":null,"earliestYear":138,"earliestYearBP":1812,"earliestYearCE":138,"mostRecentYear":877,"mostRecentYearBP":1073,"mostRecentYearCE":877,"species":[],"timeUnit":"AD"}],"siteName":"Huangye Cave"}],"studyCode":null,"studyName":"Huangye Cave, China 1860 Year Oxygen Isotope Data","studyNotes":"Oxygen isotope (d18O) data from three stalagmites from Huangye Cave \nin eastern Gansu Province, northern China, combined to construct \na precisely dated, continuous d18O record for the last 1860 years. \nTo generate the composite record for the last 1860 years from the \nthree stalagmites, we adjusted the d18O offsets to the HY2 (0.2 per mil) \nand HY3 (1.1 per mil) records on the level of HY1. The HY1 record \nand the adjusted HY2 and HY3 records were then combined to construct \na new record. The new record was composed of: \n(i) the HY3 record from AD 1308 to the present (adjusted to the level of HY1), \n(ii) the original HY1 record between AD 760 and 1305, and \n(iii) the HY2 record between AD 138 and 754 (adjusted to the level of HY1). \nFinally, the new record was normalized and a composite Huangye d18OR record \nwas generated. \n","version":"1.0","xmlId":"9597"}