{"NOAAStudyId":"22270","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":"2017-06-20","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-22270.xml","doi":null,"earliestYearBP":8604,"earliestYearCE":-6654,"entryId":"noaa-cave-22270","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"AGS-1203701, AGS-1554998, AGS-1632913"}],"investigators":"Oster, J.L.; Sharp, W.D.; Covey, A.K.; Gibson, J.; Rogers, B.; Mix, H.","mostRecentYearBP":6926,"mostRecentYearCE":-4976,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22270","originalSource":null,"publication":[{"abstract":"A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka. High frequency, large amplitude variations in carbon isotopes during the 8.2 ka event, coupled with pulsed increases in phosphorus concentrations, indicate more frequent or intense winter storms on the California coast. Decreased magnesium-calcium ratios point toward a sustained increase in effective moisture during the event, however the magnitude of change in Mg/Ca suggests this event was not as pronounced on the western North American coast as anomalies seen in the high northern latitudes and monsoon-influenced areas. Nevertheless, shifts in the White Moon Cave record that are synchronous within age uncertainties with cooling of Greenland, and changes in global monsoon systems, suggest rapid changes in atmospheric circulation occurred in response to freshwater input and associated cooling in the North Atlantic region. Our record is consistent with intensification of the Pacific winter storm track in response to North Atlantic freshwater forcing, a mechanism suggested by simulations of the last deglaciation, and indicates this intensification led to increases in precipitation and infiltration along the California coast during the Holocene.","author":{"name":"Jessica L. Oster, Warren D. Sharp, Aaron K. Covey, Jansen Gibson, Bruce Rogers, and Hari Mix"},"citation":"Jessica L. Oster, Warren D. Sharp, Aaron K. Covey, Jansen Gibson, Bruce Rogers, and Hari Mix. 2017. Climate response to the 8.2 ka event in coastal California. Scientific Reports, 7, 3886. doi: 10.1038/s41598-017-04215-5","edition":"3886","identifier":{"id":"10.1038/s41598-017-04215-5","type":"doi","url":"http://dx.doi.org/10.1038/s41598-017-04215-5"},"issue":null,"journal":"Scientific Reports","pages":null,"pubRank":"1","pubYear":2017,"reportNumber":null,"title":"Climate response to the 8.2 ka event in coastal California","type":"publication","volume":"7"}],"reconstruction":"N","scienceKeywords":["Meridional Overturning Circulation (MOC)"],"site":[{"NOAASiteId":"57253","geo":{"geoType":"Feature","geometry":{"coordinates":["37","-122.183"],"type":"POINT"},"properties":{"easternmostLongitude":"-122.183","maxElevationMeters":"170","minElevationMeters":"170","northernmostLatitude":"37","southernmostLatitude":"37","westernmostLongitude":"-122.183"}},"locationName":"Continent>North America>United States Of America>California","mappable":"Y","paleoData":[{"NOAADataTableId":"33364","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>carbon isotopes","earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/california/whitemoon2017iso.txt","linkText":"White Moon Cave Stable Isotope Data ","urlDescription":"Formatted Text Data File","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>calcite","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>calcite","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"WhiteMoon2017WMC1iso","dataTableNotes":null,"earliestYear":8604,"earliestYearBP":8604,"earliestYearCE":-6654,"mostRecentYear":6926,"mostRecentYearBP":6926,"mostRecentYearCE":-4976,"species":[],"timeUnit":"cal yr BP"}],"siteName":"White Moon Cave"}],"studyCode":null,"studyName":"White Moon Cave, California 8.2ka Speleothem Stable Isotope Data","studyNotes":"Stable isotope (d13C and d18O) data from a stalagmite collected in White Moon Cave, California \tfor the 8.2ka climate event","version":"1.0","xmlId":"20308"}