{"NOAAStudyId":"22710","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":"2017-09-22","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-22710.xml","doi":null,"earliestYearBP":173,"earliestYearCE":1777,"entryId":"noaa-icecore-22710","funding":[],"investigators":"Frezzotti, M.; Urbini, S.; Proposito, M.; Scarchilli, C.; Gandolfi, S.","mostRecentYearBP":-54,"mostRecentYearCE":2004,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22710","originalSource":null,"publication":[{"abstract":"Predictions concerning Antarctica's contribution to sea level change have been hampered by poor knowledge of surface mass balance. Snow accumulation is the most direct climate indicator and has important implications for paleoclimatic reconstruction from ice cores. Snow accumulation measurements (stake, core, snow radar) taken along a 500-km transect crossing Talos Dome (East Antarctica) have been used to assess accumulation signals and the representativeness of ice core records. Stake readings show that accumulation hiatuses can occur at sites with accumulation rates below 120 kg m-2 yr-1. Differences between cores and stakes can lead to statistical misidentification of annual layers determined from seasonal signals at sites with accumulation rates below 200 kg m-2 yr-1 because of nondetection of higher and lower values. Achieving ±10% accuracy in the reconstruction of snow accumulation from single cores requires high accumulation (750 kg m-2 yr-1). Low-accumulation sites are representative if cumulative rates computed over several years are used to reach the 750 kg m-2 yr-1 threshold. Temporal variability of accumulation over the last two centuries shows no significant increase in accumulation. Wind-driven processes are a fundamental component of surface mass balance. Spatial variations in accumulation are well correlated with surface slope changes along the wind direction and may exceed 200 kg m-2 yr-1 within 1 km. Wind-driven sublimation rates are less than 50 kg m-2 yr-1 in plateau areas and up to 260 kg m-2 yr-1 in slope areas and account for 20-75% of precipitation, whereas depositional features are negligible in surface mass balance.","author":{"name":"Massimo Frezzotti, Stefano Urbini, Marco Proposito, Claudio Scarchilli, Stefano Gandolfi"},"citation":"Massimo Frezzotti, Stefano Urbini, Marco Proposito, Claudio Scarchilli, Stefano Gandolfi. 2007. Spatial and temporal variability of surface mass balance near Talos Dome, East Antarctica. Journal of Geophysical Research: Earth Surface, 112(F2). doi: 10.1029/2006JF000638","edition":null,"identifier":{"id":"10.1029/2006JF000638","type":"doi","url":"http://dx.doi.org/10.1029/2006JF000638"},"issue":"F2","journal":"Journal of Geophysical Research: Earth Surface","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Spatial and temporal variability of surface mass balance near Talos Dome, East Antarctica","type":"publication","volume":"112"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"57464","geo":{"geoType":"Feature","geometry":{"coordinates":["-74.03","158.86"],"type":"POINT"},"properties":{"easternmostLongitude":"158.86","maxElevationMeters":"2069","minElevationMeters":"2069","northernmostLatitude":"-74.03","southernmostLatitude":"-74.03","westernmostLongitude":"158.86"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"33850","coreLengthMeters":48,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>accumulation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/itase31dpt-accum.txt","linkText":"Core 31Dpt Snow Accumulation 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":"annual counting by (nssSO4 etc.)","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":"31DptAccum","dataTableNotes":"mean annual accumulation rate 98 mm w.e./year; 1999-2003 values from stake measurements","earliestYear":1777,"earliestYearBP":173,"earliestYearCE":1777,"mostRecentYear":2003,"mostRecentYearBP":-53,"mostRecentYearCE":2003,"species":[],"timeUnit":"AD"}],"siteName":"31Dpt"},{"NOAASiteId":"57465","geo":{"geoType":"Feature","geometry":{"coordinates":["-71.89","158.54"],"type":"POINT"},"properties":{"easternmostLongitude":"158.54","maxElevationMeters":"2184","minElevationMeters":"2184","northernmostLatitude":"-71.89","southernmostLatitude":"-71.89","westernmostLongitude":"158.54"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"33851","coreLengthMeters":48,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>accumulation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/itase-gv5accum.txt","linkText":"Core GV5 Snow Accumulation 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":"annual counting by (nssSO4 etc.)","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":"GV5Accum","dataTableNotes":"mean annual accumulation rate 129 mm w.e./year; 2002-2004 values from stake measurements","earliestYear":1777,"earliestYearBP":173,"earliestYearCE":1777,"mostRecentYear":2004,"mostRecentYearBP":-54,"mostRecentYearCE":2004,"species":[],"timeUnit":"AD"}],"siteName":"GV5"},{"NOAASiteId":"57466","geo":{"geoType":"Feature","geometry":{"coordinates":["-70.68","158.86"],"type":"POINT"},"properties":{"easternmostLongitude":"158.86","maxElevationMeters":"1947","minElevationMeters":"1947","northernmostLatitude":"-70.68","southernmostLatitude":"-70.68","westernmostLongitude":"158.86"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"33852","coreLengthMeters":55,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>accumulation"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/itase-gv7accum.txt","linkText":"Core GV7 Snow Accumulation 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":"annual counting by (nssSO4 etc.)","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":"GV7Accum","dataTableNotes":"mean annual accumulation rate 237 mm w.e./year; 2002-2004 values from stake measurements","earliestYear":1854,"earliestYearBP":96,"earliestYearCE":1854,"mostRecentYear":2004,"mostRecentYearBP":-54,"mostRecentYearCE":2004,"species":[],"timeUnit":"AD"}],"siteName":"GV7"}],"studyCode":null,"studyName":"ITASE 230 Year Antarctic Ice Core Snow Accumulation Data","studyNotes":"Snow accumulation data from 3 ITASE ice cores along a north-south transect collected in the Talos Dome area of East Antarctica.","version":"1.0","xmlId":"20890"}