{"NOAAStudyId":"12403","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":"2012-01-18","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-12403.xml","doi":null,"earliestYearBP":499500,"earliestYearCE":-497550,"entryId":"noaa-cave-12403","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"0502535, 0908792, 1103403"},{"fundingAgency":"National Science Foundation of China ","fundingGrant":"40631003, 40772110, 40973007"},{"fundingAgency":"State Key Laboratory of Loess and Quaternary Geology of China","fundingGrant":null},{"fundingAgency":"Chinese Academy of Sciences","fundingGrant":"SKLLQG1001"},{"fundingAgency":"Gary Comer Science and Education Foundation","fundingGrant":"CC8 and CP52"},{"fundingAgency":"Austrian Science Fund FWF","fundingGrant":null}],"investigators":"Cheng, H.; Zhang, P.Z.; Spötl, C.; Edwards, R.L.; Cai, Y.; Zhang, D.Z.; Sang, W.C.; Tan, M.; An, Z.","mostRecentYearBP":5,"mostRecentYearCE":1945,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12403","originalSource":null,"publication":[{"abstract":"Central Asia is currently a semiarid-arid region, dominated by \r\nthe Westerlies. It is important to understand mechanisms of \r\nclimate and precipitation changes here, as water availability \r\nin the region is crucial today and in the future. High-resolution, \r\nabsolutely-dated oxygen isotope (d18O) records of stalagmites \r\nfrom Kesang Cave characterize a dynamic precipitation history \r\nover most of the past 500,000 years. This record demonstrates, \r\nfor the first time, that climate change in the region exhibits \r\na processional rhythm with abrupt inceptions of low d18O \r\nspeleothem growth at times of high Northern Hemisphere summer\r\ninsolation followed by gradual d18O increases that track\r\ndecreases of insolation. These observations and interpretations\r\ncontrast with the interpretation of nearby, but higher elevation \r\nice core records. The absolutely-dated cave d18O shifts can be \r\nused to correlate the regional climate variability by providing \r\nchronological marks. Combined with other paleoclimate records, \r\nthe Kesang observations suggest that possible incursions of \r\nAsian summer monsoon rainfall or related moisture into the \r\nKesang site and/or adjacent areas during the high insolation \r\ntimes may play an important role in changing orbital-scale \r\nhydrology of the region. Based on our record, arid climate \r\nwill prevail in this region for the next several millennia, \r\nproviding that anthropogenic effects do not supersede natural \r\nprocesses. \r\n","author":null,"citation":"Cheng, H., P.Z. Zhang, C. Spötl, R.L. Edwards, Y.J. Cai, \r\nD.Z. Zhang, W.C. Sang, M. Tan, and Z.S. An. 2012. \r\nThe climatic cyclicity in semiarid-arid central Asia \r\nover the past 500,000 years. \r\nGeophys. Res. Lett., 39, L01705, doi:10.1029/2011GL050202. \r\n\r\n","edition":null,"identifier":{"id":"10.1029/2011GL050202","type":"doi","url":"http://dx.doi.org/10.1029/2011GL050202"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"The climatic cyclicity in semiarid-arid central Asia  over the past 500,000 years","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Monsoon"],"site":[{"NOAASiteId":"52597","geo":{"geoType":"Feature","geometry":{"coordinates":["42.8667","81.75"],"type":"POINT"},"properties":{"easternmostLongitude":"81.75","maxElevationMeters":"2000","minElevationMeters":"2000","northernmostLatitude":"42.8667","southernmostLatitude":"42.8667","westernmostLongitude":"81.75"}},"locationName":"Continent>Asia>Eastern Asia>China>Xinjiang","mappable":"Y","paleoData":[{"NOAADataTableId":"20756","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/kesang2012.txt","linkText":"kesang2012.txt","urlDescription":"Speleothem","variables":[{"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/kesang2012.xls","linkText":"kesang2012.xls","urlDescription":"Speleothem","variables":[]}],"dataTableName":"KS08-1-H","dataTableNotes":null,"earliestYear":499500,"earliestYearBP":499500,"earliestYearCE":-497550,"mostRecentYear":5,"mostRecentYearBP":5,"mostRecentYearCE":1945,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Kesang Cave"}],"studyCode":null,"studyName":"Kesang Cave, Western China 500KYr Speleothem d18O Data ","studyNotes":"High resolusion and absolutely dated oxygen isotope record \nfrom Kesang Cave, Tekesi County, Xinjiang, western China. \n","version":"1.0","xmlId":"10447"}