{"NOAAStudyId":"20350","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":"2016-07-22","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-20350.xml","doi":null,"earliestYearBP":50,"earliestYearCE":1900,"entryId":"noaa-icecore-20350","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"ANT-0732655"}],"investigators":"Goodwin, B.P.; Mosley-Thompson, E.; Wilson, A.B.; Porter, S.E.; Sierra-Hernandez, M.R.","mostRecentYearBP":-59,"mostRecentYearCE":2009,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/20350","originalSource":null,"publication":[{"abstract":"A new ice core drilled in 2010 to bedrock from the Bruce Plateau (BP) on the Antarctic Peninsula (AP) provides a high temporal resolution record of environmental conditions in this region. The extremely high annual accumulation rate at this site facilitates analysis of the relationships between annual net accumulation An on the BP and large-scale atmospheric oscillations. Over the last ~45 years, An on the BP has been positively correlated with both the southern annular mode (SAM) and Southern Oscillation index (SOI). Extending this analysis back to 1900 reveals that these relationships are not temporally stable, and they exhibit major shifts in the late-1940s and the mid-1970s that are contemporaneous with phase changes in the Pacific decadal oscillation (PDO). These varying multidecadal characteristics of the An-oscillation relationships are not apparent when only data from the post-1970s era are employed. Analysis of the longer ice core record reveals that the influence of the SAM on An depends not only on the phase of the SAM and SOI but also on the phase of the PDO. When the SAM's influence on BP An is reduced, such as under negative PDO conditions, BP An is modulated by variability in the tropical and subtropical atmosphere through its impacts on the strength and position of the circumpolar westerlies in the AP region. These results demonstrate the importance of using longer-term ice core-derived proxy records to test conventional views of atmospheric circulation variability in the AP region.","author":{"name":"Bradley P. Goodwin, Ellen Mosley-Thompson, Aaron B. Wilson, Stacy E. Porter, M. Roxana Sierra-Hernandez"},"citation":"Bradley P. Goodwin, Ellen Mosley-Thompson, Aaron B. Wilson, Stacy E. Porter, M. Roxana Sierra-Hernandez. 2016. Accumulation Variability in the Antarctic Peninsula: The Role of Large-Scale Atmospheric Oscillations and Their Interactions. Journal of Climate, 29(7), 2579-2596. doi: 10.1175/JCLI-D-15-0354.1","edition":null,"identifier":{"id":"10.1175/JCLI-D-15-0354.1","type":"doi","url":"http://dx.doi.org/10.1175/JCLI-D-15-0354.1"},"issue":"7","journal":"Journal of Climate","pages":"2579-2596","pubRank":"1","pubYear":2016,"reportNumber":null,"title":"Accumulation Variability in the Antarctic Peninsula: The Role of Large-Scale Atmospheric Oscillations and Their Interactions","type":"publication","volume":"29"}],"reconstruction":"N","scienceKeywords":["Southern Annular Mode (SAM)","Pacific Decadal Oscillation"],"site":[{"NOAASiteId":"56813","geo":{"geoType":"Feature","geometry":{"coordinates":["-66.038","-64.078"],"type":"POINT"},"properties":{"easternmostLongitude":"-64.078","maxElevationMeters":"1976","minElevationMeters":"1976","northernmostLatitude":"-66.038","southernmostLatitude":"-66.038","westernmostLongitude":"-64.078"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"31036","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/bruce/bruce2016d18o.txt","linkText":"Bruce Plateau Ice Core d18O","urlDescription":"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>ice age"},{"cvAdditionalInfo":"annual averages","cvDataType":"ICE CORES","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":"cavity ring-down spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"Bruce2016d18O","dataTableNotes":null,"earliestYear":1900,"earliestYearBP":50,"earliestYearCE":1900,"mostRecentYear":2009,"mostRecentYearBP":-59,"mostRecentYearCE":2009,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"31037","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>accumulation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/bruce/bruce2016accum.txt","linkText":"Bruce Plateau Ice Core Annual Net Accumulation ","urlDescription":"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>ice age"},{"cvAdditionalInfo":"annual counting by (MSA); meters of water equivalent","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter per year","cvWhat":"formation property>formation rate>accumulation rate"}]}],"dataTableName":"Bruce2016Accum","dataTableNotes":null,"earliestYear":1900,"earliestYearBP":50,"earliestYearCE":1900,"mostRecentYear":2009,"mostRecentYearBP":-59,"mostRecentYearCE":2009,"species":[],"timeUnit":"AD"}],"siteName":"Bruce Plateau"}],"studyCode":null,"studyName":"Bruce Plateau, Antarctic Peninsula 100yr Ice Core d18O and Accumulation","studyNotes":"Antarctic Peninsula oxygen isotope (d18O) and accumulation rate data from an ice core drilled on Bruce Plateau. ","version":"1.0","xmlId":"18129"}