{"NOAAStudyId":"22470","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":"2017-05-19","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-22470.xml","doi":null,"earliestYearBP":1255,"earliestYearCE":695,"entryId":"noaa-icecore-22470","funding":[],"investigators":"Horiuchi, K.; Uchida, T.; Sakamoto, Y.; Ohta, A.; Matsuzaki, H.; Shibata, Y.; Motoyama, H.","mostRecentYearBP":55,"mostRecentYearCE":1895,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22470","originalSource":null,"publication":[{"abstract":"The cosmogenic nuclide 10Be was analyzed by using accelerator mass spectrometry on an ice core drilled at the Dome Fuji station, inland Antarctica, for 700-1900 yr CE. The measured concentration of 10Be in the Dome Fuji ice core and the derived 10Be flux show similar fluctuations, with both increasing at known solar-activity minima over the last millennium in agreement with earlier observations of 10Be and 14C. Based on the similar nature of the 10Be flux to the reconstructed 14C production rate patterns, a 10Be-14C correlation age model for the Dome Fuji ice core was successfully constructed. This age model agrees well with the initial version of the tephrochronology of the core. The 10Be-flux record contains information on variability in the amount of cosmic radiation incident on the atmosphere, which is mainly attributable to high-frequency change in solar activity and low-frequency background intensity adjustment of the geomagnetic field. High-resolution 10Be analyses of the Dome Fuji ice cores promise to provide potentially important information on the history of cosmic radiation intensity over the past several hundred thousand years.","author":{"name":"Kazuho Horiuchi, Tomoko Uchida, Yuko Sakamoto, Aoi Ohta, Hiroyuki Matsuzaki, Yasuyuki Shibata, Hideaki Motoyama"},"citation":"Kazuho Horiuchi, Tomoko Uchida, Yuko Sakamoto, Aoi Ohta, Hiroyuki Matsuzaki, Yasuyuki Shibata, Hideaki Motoyama. 2008. Ice core record of 10Be over the past millennium from Dome Fuji, Antarctica: A new proxy record of past solar activity and a powerful tool for stratigraphic dating. Quaternary Geochronology, 3(3), 253-261. doi: 10.1016/j.quageo.2008.01.003","edition":null,"identifier":{"id":"10.1016/j.quageo.2008.01.003","type":"doi","url":"http://dx.doi.org/10.1016/j.quageo.2008.01.003"},"issue":"3","journal":"Quaternary Geochronology","pages":"253-261","pubRank":"1","pubYear":2008,"reportNumber":null,"title":"Ice core record of 10Be over the past millennium from Dome Fuji, Antarctica: A new proxy record of past solar activity and a powerful tool for stratigraphic dating","type":"publication","volume":"3"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"20565","geo":{"geoType":"Feature","geometry":{"coordinates":["-77.32","38.7"],"type":"POINT"},"properties":{"easternmostLongitude":"38.7","maxElevationMeters":"3810","minElevationMeters":"3810","northernmostLatitude":"-77.32","southernmostLatitude":"-77.32","westernmostLongitude":"38.7"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"33593","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/domefuji/domefuji2008d18o.txt","linkText":"Dome Fuji Ice Core Oxygen Isotope Data","urlDescription":"Formatted Text Data File","variables":[{"cvAdditionalInfo":null,"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"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":"composited","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":"DF2008d18O","dataTableNotes":null,"earliestYear":695,"earliestYearBP":1255,"earliestYearCE":695,"mostRecentYear":1895,"mostRecentYearBP":55,"mostRecentYearCE":1895,"species":[],"timeUnit":"AD"}],"siteName":"Dome Fuji"}],"studyCode":null,"studyName":"Dome Fuji, Antarctica Ice Core Oxygen Isotope Data 700-1900 CE","studyNotes":"Oxygen isotope (d18O) data from the Dome Fuji, Antarctica ice core for 700-1900 CE.  ","version":"1.0","xmlId":"20654"}