{"NOAAStudyId":"16997","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":"2014-07-30","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-16997.xml","doi":null,"earliestYearBP":540020,"earliestYearCE":-538070,"entryId":"noaa-cave-16997","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"1103403 and 1337693"},{"fundingAgency":"National Basic Research Program of China","fundingGrant":null},{"fundingAgency":"National Science Foundation of China ","fundingGrant":null},{"fundingAgency":"Korea Institute of Geoscience and Mineral Resources","fundingGrant":"K-IODP, GP2009-005"}],"investigators":"Jo, K.; Woo, K.S.; Yi, S.; Yang, D.Y.; Lim, H.S.; Wang, Y.; Cheng, H.; Edwards, R.L.","mostRecentYearBP":730,"mostRecentYearCE":1220,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/16997","originalSource":null,"publication":[{"abstract":"An interhemispheric hydrologic seesaw - in which latitudinal migrations of the Intertropical Convergence Zone (ITCZ) produce simultaneous wetting (increased precipitation) in one hemisphere and drying in the other - has been discovered in some tropical and subtropical regions. For instance, Chinese and Brazilian subtropical speleothem (cave formations such as stalactites and stalagmites) records show opposite trends in time series of oxygen isotopes (a proxy for precipitation variability) at millennial to orbital timescales, suggesting that hydrologic cycles were antiphased in the northerly versus southerly subtropics. This tropical to subtropical hydrologic phenomenon is likely to be an initial and important climatic response to orbital forcing. The impacts of such an interhemispheric hydrologic seesaw on higher-latitude regions and the global climate system, however, are unknown. Here we show that the antiphasing seen in the tropical records is also present in both hemispheres of the mid-latitude western Pacific Ocean. Our results are based on a new 550,000-year record of the growth frequency of speleothems from the Korean peninsula, which we compare to Southern Hemisphere equivalents. The Korean data are discontinuous and derived from 24 separate speleothems, but still allow the identification of periods of peak speleothem growth and, thus, precipitation. The clear hemispheric antiphasing indicates that the sphere of influence of the interhemispheric hydrologic seesaw over the past 550,000 years extended at least to the mid-latitudes, such as northeast Asia, and that orbital-timescale ITCZ shifts can have serious effects on temperate climate systems. Furthermore, our result implies that insolation-driven ITCZ dynamics may provoke water vapour and vegetation feedbacks in northern mid-latitude regions and could have regulated global climate conditions throughout the late Quaternary ice age cycles.","author":{"name":"Kyoung-nam Jo, Kyung Sik Woo, Sangheon Yi, Dong Yoon Yang, Hyoun Soo Lim, Yongjin Wang, Hai Cheng and R. Lawrence Edwards"},"citation":"Kyoung-nam Jo, Kyung Sik Woo, Sangheon Yi, Dong Yoon Yang, Hyoun Soo Lim, Yongjin Wang, Hai Cheng and R. Lawrence Edwards. 2014. Mid-latitude interhemispheric hydrologic seesaw over the past 550,000 years. Nature, 508(7496), 378-382. doi: 10.1038/nature13076","edition":null,"identifier":{"id":"10.1038/nature13076","type":"doi","url":"http://dx.doi.org/10.1038/nature13076"},"issue":"7496","journal":"Nature","pages":"378-382","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Mid-latitude interhemispheric hydrologic seesaw over the past 550,000 years","type":"publication","volume":"508"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"56257","geo":{"geoType":"Feature","geometry":{"coordinates":["37.1","128.5014"],"type":"POINT"},"properties":{"easternmostLongitude":"128.5014","maxElevationMeters":"265","minElevationMeters":"265","northernmostLatitude":"37.1","southernmostLatitude":"37.1","westernmostLongitude":"128.5014"}},"locationName":"Continent>Asia>Eastern Asia>South Korea","mappable":"Y","paleoData":[{"NOAADataTableId":"27277","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/korea/jo2014korea230th.txt","linkText":"Korean Speleothem 230Th Age Data","urlDescription":"Text Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>sample identification"},{"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":null,"cvError":"95% confidence interval margin of error","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear","cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>speleothems>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/korea/jo2014korea230th.xlsx","linkText":"Korean Speleothem 230Th Age Data - Supplemental File F2","urlDescription":"Excel Data File","variables":[]}],"dataTableName":"Jo2014Korea230Th","dataTableNotes":null,"earliestYear":540020,"earliestYearBP":540020,"earliestYearCE":-538070,"mostRecentYear":730,"mostRecentYearBP":730,"mostRecentYearCE":1220,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Eden Cave"}],"studyCode":null,"studyName":"Korean Speleothem 550KYr Growth Frequency 230Th Age Data","studyNotes":"Korean Speleothem growth frequency record based on 230Th ages from 24 speleothems collected on the Korean peninsula. ","version":"1.0","xmlId":"14703"}