{"NOAAStudyId":"5462","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":"2003-10-01","dataPublisher":"NOAA","dataType":"PALEOLIMNOLOGY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-5462.xml","doi":null,"earliestYearBP":15588,"earliestYearCE":-13638,"entryId":"noaa-lake-5462","funding":[],"investigators":"von Grafenstein, U.; Erlenkeuser, H.; Brauer, A.; Jouzel, J.; Johnsen, S.J.","mostRecentYearBP":-12,"mostRecentYearCE":1962,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5462","originalSource":null,"publication":[{"abstract":"Oxygen-isotope ratios of precipitation (delta 18OP) inferred from deep-lake ostracods from the Ammersee (southern Germany) provide a climate record with decadal resolution. The record in detail shows many of the rapid climate shifts seen in central Greenland ice cores between 15,000 and 5000 years before the present (B.P.). Negative excursions in the estimated delta 18OP from both of these records likely reflect short weakenings of the thermohaline circulation caused by episodic discharges of continental freshwater into the North Atlantic. Deviating millennial-scale trends, however, indicate that climate gradients between Europe and Greenland changed systematically, reflecting a gradual rearrangement of North Atlantic circulation during deglaciation.","author":null,"citation":"von Grafenstein, U., H. Erlenkeuser, A. Brauer, J. Jouzel, S.J. Johnsen. 1999. A Mid-European Decadal Isotope-Climate Record from 15,500 to 5000 Years B.P.. Science Vol. 284, Number 5420, pp. 1654-1657, Jun 4 1999","edition":null,"identifier":null,"issue":null,"journal":"Science","pages":null,"pubRank":"1","pubYear":1999,"reportNumber":null,"title":"A Mid-European Decadal Isotope-Climate Record from 15,500 to 5000 Years B.P.","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"8908","geo":{"geoType":"Feature","geometry":{"coordinates":["47.9925","11.1308"],"type":"POINT"},"properties":{"easternmostLongitude":"11.1308","maxElevationMeters":"533","minElevationMeters":"533","northernmostLatitude":"47.9925","southernmostLatitude":"47.9925","westernmostLongitude":"11.1308"}},"locationName":"Continent>Europe>Western Europe>Germany","mappable":"Y","paleoData":[{"NOAADataTableId":"7226","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/germany/ammersee_1999.txt","linkText":"ammersee_1999.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>sample identification"},{"cvAdditionalInfo":"reconstruction predictor: ostracod delta 18O; reconstruction technique: Adjust for evaporative enrichment; reconstruction technique: Adjust for temperature-dependent fractionation; reconstruction technique: Adjust for vital effects","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"reconstruction predictor: ostracod delta 18O; reconstruction technique: Adjust for evaporative enrichment; reconstruction technique: Adjust for temperature-dependent fractionation; reconstruction technique: Adjust for vital effects","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>precipitation","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","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":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>ostracod","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"Ammersee Core AMMERSEE","dataTableNotes":null,"earliestYear":15588,"earliestYearBP":15588,"earliestYearCE":-13638,"mostRecentYear":-12,"mostRecentYearBP":-12,"mostRecentYearCE":1962,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Ammersee"}],"studyCode":null,"studyName":"Ammersee 15,000 Year Ostracod Oxygen Isotope Data","studyNotes":"Ammersee ostracod oxygen isotope data.  Oxygen-isotope values of calcite shells of Candona sp. (juveniles of Fabaeformiscandona levanderi and Fabaeformiscandona tricicatricosa) from sediment cores AS92-5, AS93-1, and AS96-1.","version":"1.0","xmlId":"658"}