{"NOAAStudyId":"22602","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":"2017-09-07","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-22602.xml","doi":null,"earliestYearBP":47,"earliestYearCE":1903,"entryId":"noaa-icecore-22602","funding":[],"investigators":"Naik, S.S.; Meloth, T.; Laluraj, C.M.; Redkar, B.L.; Chaturvedi, A.","mostRecentYearBP":-56,"mostRecentYearCE":2006,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22602","originalSource":null,"publication":[{"abstract":"Stable isotope records of oxygen and hydrogen were studied from a 65 m long ice core retrieved from central Dronning Maud Land, East Antarctica, in order to reconstruct the coastal Antarctic climate variability during the last century and its relation to the Southern Annular Mode (SAM) and El Niño-Southern Oscillation (ENSO). The d18O records showed a significant relation to the SAM with a dominant ~4 years variability, except during specific periods (1918-1927, 1938-1947, and 1989-2005) when ENSO teleconnection was established through the in-phase relation between SAM and Southern Oscillation Index (SOI). The combined influence of ENSO and SAM was seen on surface air temperatures in this region mainly during the austral summer season from 1989 to 2005. Further, a significant relationship between d18O and SAM was observed on a decadal scale, which overrides the intermittent influence of ENSO. Major shifts in the deuterium excess record were observed during periods of ENSO teleconnections, which support a shift in moisture source regions during the periods of stronger ENSO teleconnections. Surface air temperatures estimated using the d18O-T spatial slope for this region depicted a significant warming of 1C for the past century. The study reveals that throughout the last century, SAM was the dominant mode of climatic variability in the coastal region of central Dronning Maud Land on a decadal scale.","author":{"name":"Sushant S. Naik, Thamban Meloth, C.M. Laluraj, B.L. Redkar and Arun Chaturvedi "},"citation":"Sushant S. Naik, Thamban Meloth, C.M. Laluraj, B.L. Redkar and Arun Chaturvedi. 2010. A century of climate variability in central Dronning Maud Land, East Antarctica, and its relation to Southern Annular Mode and El Niño-Southern Oscillation. Journal of Geophysical Research: Atmospheres, 115(D16). doi: 10.1029/2009JD013268","edition":null,"identifier":{"id":"10.1029/2009JD013268","type":"doi","url":"http://dx.doi.org/10.1029/2009JD013268"},"issue":"D16","journal":"Journal of Geophysical Research: Atmospheres","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"A century of climate variability in central Dronning Maud Land, East Antarctica, and its relation to Southern Annular Mode and El Niño-Southern Oscillation","type":"publication","volume":"115"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"57445","geo":{"geoType":"Feature","geometry":{"coordinates":["-71.34","11.59"],"type":"POINT"},"properties":{"easternmostLongitude":"11.59","maxElevationMeters":"1300","minElevationMeters":"1300","northernmostLatitude":"-71.34","southernmostLatitude":"-71.34","westernmostLongitude":"11.59"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"33745","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>hydrogen isotopes","earth science>paleoclimate>ice core>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/maud/dronning2010iso.txt","linkText":"Dronning Maud Land Coastal Ice Core dD and d18O 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":"meter","cvWhat":"depth variable>depth"},{"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":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"},{"cvAdditionalInfo":null,"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 2H"}]}],"dataTableName":"IND-25/B5iso","dataTableNotes":null,"earliestYear":1903,"earliestYearBP":47,"earliestYearCE":1903,"mostRecentYear":2006,"mostRecentYearBP":-56,"mostRecentYearCE":2006,"species":[],"timeUnit":"AD"}],"siteName":"IND-25/B5"}],"studyCode":null,"studyName":"Dronning Maud Land Coastal Ice Core 100 Year Subannual dD and d18O Data","studyNotes":"Oxygen and hydrogen isotope (d18O and dD) data from the IND-25/B5 ice core collected in coastal Dronning Maud Land, East Antarctica, for the past 100 years at subannual resolution.","version":"1.0","xmlId":"20803"}