{"NOAAStudyId":"23235","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":"2017-11-17","dataPublisher":"NOAA","dataType":"ICE CORES","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-23235.xml","doi":null,"earliestYearBP":55,"earliestYearCE":1895,"entryId":"noaa-icecore-23235","funding":[{"fundingAgency":"Deutsche Forschungsgemeinschaft","fundingGrant":"Re-762/2"},{"fundingAgency":"European Science Foundation/European Commission","fundingGrant":"ENV4-CT95-0074"}],"investigators":"Oerter, H.; Graf, W.; Wilhelms, F.; Minikin, A.; Miller, H.","mostRecentYearBP":-46,"mostRecentYearCE":1996,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/23235","originalSource":null,"publication":[{"abstract":"The paper focuses on studies of snow-pit samples and shallow firn cores taken during the 1995–96 and 1996–97 field seasons at Amundsenisen, Dronning Maud Land, Antarctica. The dating of the firn is based on the artificial tritium distribution in the snow cover and on several reference horizons identified by electrical measurements. The early 1964 through 1965 horizon is marked by the deposition of sulfate released to the atmosphere during the eruption of the Agung volcano in March 1963; this horizon was detected by dielectric profiling and electrical conductivity measurements; the proof by chemical analysis has still to be seen. At the ten investigated sites on Amundsenisen the 1964–65 horizon was identified 4.1–5.7 m below the surface. The accumulation rates on Amundsenisen are 41–91 kg m-2a-1. The cores are up to 100 years old. A relationship between isotope content and the mean air temperature on a regional scale can be based on measurements of firn temperature at 10 m depth at the drilling sites. Between Neumayer station at the coast and Heimefrontfjella, the temperature gradient of the deuterium content is 9.6‰ K-1. South of Heimefrontfjella, on the Amundsenisen plateau, it is only 5.5‰ K-1. Time series of yearly accumulation rates show no significant trend. For the isotope records a significant trend to higher values with gradients of 0.1–0.2 ?2H‰a-1 can be seen in five of the ten time series.","author":{"name":"Oerter, Hans; Graf, Wolfgang; Wilhelms, Frank; Minikin, Andreas; and Miller, Heinz"},"citation":"Oerter, Hans; Graf, Wolfgang; Wilhelms, Frank; Minikin, Andreas; and Miller, Heinz. 1999. Accumulation studies on Amundsenisen, Dronning Maud Land, Antarctica, by means of tritium, dielectric profiling and stable-isotope measurements: first results from the 1995–96 and 1996–97 field seasons. Annals of Glaciology, 29(1), 1-9. doi: 10.3189/172756499781820914","edition":null,"identifier":{"id":"10.3189/172756499781820914","type":"doi","url":"http://dx.doi.org/10.3189/172756499781820914"},"issue":"1","journal":"Annals of Glaciology","pages":"1-9","pubRank":"1","pubYear":1999,"reportNumber":null,"title":"Accumulation studies on Amundsenisen, Dronning Maud Land, Antarctica, by means of tritium, dielectric profiling and stable-isotope measurements: first results from the 1995–96 and 1996–97 field seasons","type":"publication","volume":"29"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"57574","geo":{"geoType":"Feature","geometry":{"coordinates":["-74.8583","-2.55"],"type":"POINT"},"properties":{"easternmostLongitude":"-2.55","maxElevationMeters":"2817","minElevationMeters":"2817","northernmostLatitude":"-74.8583","southernmostLatitude":"-74.8583","westernmostLongitude":"-2.55"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"34757","coreLengthMeters":10,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_08-PAGESAnt2k-DML_Plateau_FB96DML01.txt","linkText":"DML01 d18O Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":"\"titrium content; 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