noaa-lake-5462 Ammersee 15,000 Year Ostracod Oxygen Isotope Data von Grafenstein, U.; Erlenkeuser, H.; Brauer, A.; Jouzel, J.; Johnsen, S.J. Ammersee 15,000 Year Ostracod Oxygen Isotope Data 2003-10-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/5462 Investigator U. von Grafenstein Investigator H. Erlenkeuser Investigator A. Brauer Investigator J. Jouzel Investigator S.J. Johnsen earth science paleoclimate paleolimnology delta 18O,ostracod,null,per mil PDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,null earth science paleoclimate paleolimnology sample identification,null,null,null,null,paleolimnology,null,null,C,null earth science paleoclimate climate reconstructions|paleolimnology age,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology delta 18O,delta 18O|precipitation,null,per mil PDB,null,climate reconstructions|paleolimnology,null,null,N,reconstruction predictor: ostracod delta 18O; reconstruction technique: Adjust for evaporative enrichment; reconstruction technique: Adjust for temperature-dependent fractionation; reconstruction technique: Adjust for vital effects earth science paleoclimate climate reconstructions|paleolimnology depth,null,null,centimeter,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate paleolimnology oxygen isotopes geoscientificInformation 15588 cal yr BP -12 cal yr BP Complete 47.9925 47.9925 11.1308 11.1308 533 533 Continent Europe Western Europe Germany Ammersee>LATITUDE 47.9925>LONGITUDE 11.1308 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII 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

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. STUDY NOTES: 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.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/germany/ammersee_1999.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11