{"NOAAStudyId":"23233","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-23233.xml","doi":null,"earliestYearBP":58,"earliestYearCE":1892,"entryId":"noaa-icecore-23233","funding":[{"fundingAgency":"Alfred Wegener Institute for Polar and Marine Research","fundingGrant":null}],"investigators":"Schlosser, E.; Oerter, H.; Graf, W.","mostRecentYearBP":-41,"mostRecentYearCE":1991,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/23233","originalSource":null,"publication":[{"abstract":null,"author":{"name":"Schlosser, Elisabeth; Oerter, Hans; Graf, Wolfgang"},"citation":"Schlosser, Elisabeth; Oerter, Hans; Graf, Wolfgang. 1999. Snow accumulation on Ekströmisen, Antarctica, 1980-1996. Reports on Polar Research, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven. , 313. doi: 10.2312/BzP_0313_1999","edition":null,"identifier":{"id":"10.2312/BzP_0313_1999","type":"doi","url":"http://dx.doi.org/10.2312/BzP_0313_1999"},"issue":null,"journal":"Reports on Polar Research, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven","pages":null,"pubRank":"2","pubYear":1999,"reportNumber":"313","title":"Snow accumulation on Ekströmisen, Antarctica, 1980-1996","type":"publication","volume":null},{"abstract":"At the German wintering base Neumayer, an intensive glacio-meteorological programme has been carried out during the last two decades. A complete meteorological dataset and data from surface snow samples, snow pits, firn cores and weekly accumulation measurements from a stake array are available. We first investigated the attenuation of the seasonal ?18O signal due to water-vapour diffusion in the snowpack. A comparison of surface snow samples and firn cores of different ages shows that only onethird of the seasonal ?18O signal of the surface snow samples remains in the cores after the first year. No further significant change in the amplitude of the seasonal ?18O signal is found later. Changes in the seasonal distribution of accumulation can lead to a bias in ice-core properties. This is studied on a short time-scale, using high-time-resolution data of accumulation, stable-isotope ratios and air temperature. Mean annual ?18O values from firn cores are not well correlated to annual mean air temperatures. However, the correlation is improved considerably by calculating an annual mean air temperature using monthly mean temperatures weighted by monthly accumulation. At Neumayer, it is mainly the cyclonic activity in late winter/early spring that determines whether and how the core data are biased.","author":{"name":"Schlosser, Elisabeth and Hans Oerter"},"citation":"Schlosser, Elisabeth and Hans Oerter. 2002. Shallow firn cones from Neumayer, Ekströmisen, Antartica: a comparison of accumulation rates and stable-isotope ratios. Annals of Glaciology, 35(1), 91-96. doi: 10.3189/172756402781816915","edition":null,"identifier":{"id":"10.3189/172756402781816915","type":"doi","url":"http://dx.doi.org/10.3189/172756402781816915"},"issue":"1","journal":"Annals of Glaciology","pages":"91-96","pubRank":"1","pubYear":2002,"reportNumber":null,"title":"Shallow firn cones from Neumayer, Ekströmisen, Antartica: a comparison of accumulation rates and stable-isotope ratios","type":"publication","volume":"35"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"57571","geo":{"geoType":"Feature","geometry":{"coordinates":["-70.6167","-8.3667"],"type":"POINT"},"properties":{"easternmostLongitude":"-8.3667","maxElevationMeters":"28","minElevationMeters":"28","northernmostLatitude":"-70.6167","southernmostLatitude":"-70.6167","westernmostLongitude":"-8.3667"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"34735","coreLengthMeters":57,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_20-PAGESAnt2k-DML_Ekstroem_B04.txt","linkText":"B04 Georg-von-Neumayer d18O Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":"d180 layer counting; tritium content; dielectric profiling","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age>ice age"},{"cvAdditionalInfo":"mean annual values","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"B04 d18O Schlosser2002","dataTableNotes":"B04 (NM01C82_04)","earliestYear":1892,"earliestYearBP":58,"earliestYearCE":1892,"mostRecentYear":1991,"mostRecentYearBP":-41,"mostRecentYearCE":1991,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"34736","coreLengthMeters":51,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>accumulation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site7_20-accum-DML_Ekstroem_B04.txt","linkText":"B04 Georg-von-Neumayer Snow Accumulation Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":"d180 layer counting; tritium content; dielectric profiling","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age>ice age"},{"cvAdditionalInfo":"density and depth interval thinning function applied","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>precipitation>snow","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"kilogram per square meter per year","cvWhat":"formation property>formation rate>accumulation rate"}]}],"dataTableName":"B04 accum Schlosser2002","dataTableNotes":"B04 (NM01C82_04)","earliestYear":1892,"earliestYearBP":58,"earliestYearCE":1892,"mostRecentYear":1991,"mostRecentYearBP":-41,"mostRecentYearCE":1991,"species":[],"timeUnit":"AD"}],"siteName":"B04 Georg-von-Neumayer Station Dronning Maud Land"}],"studyCode":null,"studyName":"Georg-von-Neumayer Station Core B04 Dronning Maud Land oxygen isotope and accumulation rate data from 1892-1981 CE","studyNotes":"Description: DML data contributed to the PAGES 2k project. Data is also available at DOI:10.1594/PANGAEA.690380\r\n      Provided Keywords: oxygen isotope of water, temperature proxy, accumulation rate","version":"1.0","xmlId":"21436"}