{"NOAAStudyId":"17287","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":"2014-10-08","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-17287.xml","doi":null,"earliestYearBP":206839,"earliestYearCE":-204889,"entryId":"noaa-cave-17287","funding":[{"fundingAgency":"Taiwan ROC NSC","fundingGrant":"101-2116-M-002-009, 102-2116-M-002-016, 101R7625"},{"fundingAgency":"National Natural Science Foundation China","fundingGrant":"41030103, 41172165, 41072141, 41272192"},{"fundingAgency":"State Key Laboratory of Loess and Quaternary Geology of China","fundingGrant":"SKLLQG1310"}],"investigators":"Li, T.-Y.; Shen, C.-C.; Huang, L.-J.; Jiang, X.-Y.; Yang, X.-L.; Mii, H.-S.; Lee, S.-Y.; Lo, L.","mostRecentYearBP":95506,"mostRecentYearCE":-93556,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/17287","originalSource":null,"publication":[{"abstract":"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.","author":{"name":"T.-Y. Li, C.-C. Shen, L.-J. Huang, X.-Y. Jiang, X.-L. Yang, H.-S. Mii, S.-Y. Lee, and L. Lo"},"citation":"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. Stalagmite-inferred variability of the Asian summer monsoon during the penultimate glacial-interglacial period. Climate of the Past, 10(3), 1211-1219. doi: 10.5194/cp-10-1211-2014","edition":null,"identifier":{"id":"10.5194/cp-10-1211-2014","type":"doi","url":"http://dx.doi.org/10.5194/cp-10-1211-2014"},"issue":"3","journal":"Climate of the Past","pages":"1211-1219","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Stalagmite-inferred variability of the Asian summer monsoon during the penultimate glacial-interglacial period","type":"publication","volume":"10"}],"reconstruction":"N","scienceKeywords":["Monsoon"],"site":[{"NOAASiteId":"56305","geo":{"geoType":"Feature","geometry":{"coordinates":["29.0333","107.1833"],"type":"POINT"},"properties":{"easternmostLongitude":"107.1833","maxElevationMeters":"2140","minElevationMeters":"2140","northernmostLatitude":"29.0333","southernmostLatitude":"29.0333","westernmostLongitude":"107.1833"}},"locationName":"Continent>Asia>Eastern Asia>China","mappable":"Y","paleoData":[{"NOAADataTableId":"27502","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014yk05.txt","linkText":"Stalagmite YK05 d18O Data","urlDescription":"Text Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"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 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variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"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"}]},{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/yangkou2014.xls","linkText":"All Yangkou Cave Stalagmite d18O Data","urlDescription":"Excel Data 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