{"NOAAStudyId":"14312","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":"2013-05-01","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-14312.xml","doi":null,"earliestYearBP":8553,"earliestYearCE":-6603,"entryId":"noaa-cave-14312","funding":[{"fundingAgency":"Natural Environment Research Council (NERC)","fundingGrant":"NE/G003416/1"},{"fundingAgency":"Gary Comer Science and Education Foundation","fundingGrant":"Abrupt Climate Change Fellowship"},{"fundingAgency":"National Basic Research Program of China","fundingGrant":"2011CB808800"},{"fundingAgency":"National Science Foundation of China ","fundingGrant":"40972219"}],"investigators":"Liu, Y.-H.; Henderson, G.M.; Hu, C.-Y.; Mason, A.J.; Charnley, N.; Johnson, K.R.; Xie, S.-C.","mostRecentYearBP":7784,"mostRecentYearCE":-5834,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/14312","originalSource":null,"publication":[{"abstract":"An abrupt cooling event in the North Atlantic region 8,200 years ago affected climate throughout the Northern Hemisphere. The event is well constrained in Greenland ice cores, but lack of resolution in records from other regions has challenged our understanding of the timing and nature of the associated teleconnections. Speleothem records from East Asia have suggested monsoonal changes associated with the 8,200 year event, but the nature of these changes remains controversial. Here we assess changes in East Asian precipitation during the event from a sub-annually resolved stalagmite record from central China. Using d18O and Mg/Ca measurements of the speleothem carbonate, we show that climate dried significantly about 8,200 years ago. Based on our annual-layer-counted chronology, we show that the dry event lasted 150 years, with a central period of pronounced aridity that lasted 70 years. The duration and evolution of the event is indistinguishable from that observed in the Greenland ice cores. We therefore conclude that an effective and rapid atmospheric teleconnection exists between the North Atlantic and the monsoon system in warm climates similar to today's.","author":null,"citation":"Y-H. Liu, G.M. Henderson, C-Y. Hu, A.J. Mason, N. Charnley, K.R. Johnson, and S-C. Xie. 2013.\r\nLinks between the East Asian monsoon and North Atlantic climate during the 8,200 year event. Nature Geoscience, Vol. 6, Issue 2, pp. 117-120. DOI: 10.1038/ngeo1708","edition":null,"identifier":{"id":"10.1038/ngeo1708","type":"doi","url":"http://dx.doi.org/10.1038/ngeo1708"},"issue":null,"journal":"Nature Geoscience","pages":null,"pubRank":"1","pubYear":2013,"reportNumber":null,"title":"Links between the East Asian monsoon and North Atlantic climate during the 8,200 year event","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["abrupt climate change"],"site":[{"NOAASiteId":"20553","geo":{"geoType":"Feature","geometry":{"coordinates":["30.45","110.416"],"type":"POINT"},"properties":{"easternmostLongitude":"110.416","maxElevationMeters":"294","minElevationMeters":"294","northernmostLatitude":"30.45","southernmostLatitude":"30.45","westernmostLongitude":"110.416"}},"locationName":"Continent>Asia>Eastern Asia>China","mappable":"Y","paleoData":[{"NOAADataTableId":"24286","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes","earth science>paleoclimate>speleothems>carbon isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/heshang2013iso.txt","linkText":"heshang2013iso.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year 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 13C"},{"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"}]}],"dataTableName":"Heshang2013H4iso","dataTableNotes":null,"earliestYear":8294,"earliestYearBP":8294,"earliestYearCE":-6344,"mostRecentYear":8061,"mostRecentYearBP":8061,"mostRecentYearCE":-6111,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"24287","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>lithology"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/heshang2013layer.txt","linkText":"heshang2013layer.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year 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":"image analysis","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter per year","cvWhat":"formation property>formation rate>growth rate"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"}]}],"dataTableName":"Heshang2013H4layer","dataTableNotes":null,"earliestYear":8553,"earliestYearBP":8553,"earliestYearCE":-6603,"mostRecentYear":7784,"mostRecentYearBP":7784,"mostRecentYearCE":-5834,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Heshang Cave"}],"studyCode":null,"studyName":"Heshang Cave, China 8.2ka Subannual Stalagmite Stable Isotope Data","studyNotes":"The dataset is a sub-annual resolution d18O and d13C record for the 8.2kyr event from Heshang cave in the Yangtze Valley in central China. Stable isotope samples were micro-milled continuously at ~40 um intervals from 235.3 cm to 231.9 cm of HS-4 with an average resolution of ~0.3 years. A total of 869 samples were measured on a Thermo Delta V Advantage Isotope Ratio Mass spectrometer fitted with a Kiel Carbonate Device IV at Oxford Department of Earth Sciences, with a precision of ±0.08 per mil. The chronology of stalagmite HS-4 during 8.2 kyr event has been established independently by U-Th dating (9 samples measured by MC-ICP-MS at Oxford University) and layer counting. Full details of the chronology and age model are provided in Supplementary Information of Liu et al. 2013.","version":"1.0","xmlId":"12296"}