{"xmlId":"21914","NOAAStudyId":"23750","studyName":"Mt. Hunter, Alaska 230 Year Ice Core Melt Layer Data","doi":"https://doi.org/10.25921/6rma-7j85","uuid":"4dd5be64-5895-4aaf-85d0-87a8007e7010","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"ICE CORES","investigators":"Winski, D.A.; Osterberg, E.; Kreutz, K.J.; Wake, C.; Ferris, D.G.; Campbell, S.; Baum, M.; Bailey, A.; Birkel, S.; Introne, D.S.; Handley, M.","investigatorDetails":[{"firstName":"Dominic","lastName":"Winski","initials":"D.A.","orcId":"0000-0002-9868-7909"},{"firstName":"Erich","lastName":"Osterberg","initials":"E.","orcId":"0000-0002-0675-1230"},{"firstName":"Karl","lastName":"Kreutz","initials":"K.J.","orcId":"0000-0003-1881-2341"},{"firstName":"Cameron","lastName":"Wake","initials":"C.","orcId":"0000-0002-5961-5902"},{"firstName":"David","lastName":"Ferris","initials":"D.G.","orcId":"0000-0003-2336-6163"},{"firstName":"Seth","lastName":"Campbell","initials":"S.","orcId":null},{"firstName":"Mark","lastName":"Baum","initials":"M.","orcId":null},{"firstName":"Adriana","lastName":"Bailey","initials":"A.","orcId":"0000-0002-2614-1560"},{"firstName":"Sean","lastName":"Birkel","initials":"S.","orcId":"0000-0003-0287-5604"},{"firstName":"Douglas","lastName":"Introne","initials":"D.S.","orcId":"0000-0002-3632-3704"},{"firstName":"Michael","lastName":"Handley","initials":"M.","orcId":"0000-0001-6712-9843"}],"version":"1.0","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"AGS-1204035, AGS-1203838, AGS-1203863"}],"studyNotes":"Melt layer stratigraphic data from the Mt. Hunter ice core","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/23750","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-23750.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-icecore-23750.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/ice-core","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2018-03-26","entryId":"noaa-icecore-23750","earliestYearBP":165,"mostRecentYearBP":-63,"earliestYearCE":1785,"mostRecentYearCE":2013,"publication":[{"author":{"name":"Dominic Winski, Erich Osterberg, Karl Kreutz, Cameron Wake, David Ferris, Seth Campbell, Mark Baum, Adriana Bailey, Sean Birkel, Douglas Introne, Mike Handley"},"pubYear":2018,"title":"A 400year ice core melt layer record of summertime warming in the Alaska Range","journal":"Journal of Geophysical Research: Atmospheres","volume":"123","edition":null,"issue":null,"pages":null,"reportNumber":null,"citation":"Dominic Winski, Erich Osterberg, Karl Kreutz, Cameron Wake, David Ferris, Seth Campbell, Mark Baum, Adriana Bailey, Sean Birkel, Douglas Introne, Mike Handley. 2018. A 400year ice core melt layer record of summertime warming in the Alaska Range. Journal of Geophysical Research: Atmospheres, 123. doi: 10.1002/2017JD027539","type":"publication","identifier":{"type":"doi","id":"10.1002/2017JD027539","url":"http://dx.doi.org/10.1002/2017JD027539"},"abstract":"Warming in high-elevation regions has societally important impacts on glacier mass balance, water resources, and sensitive alpine ecosystems, yet very few high-elevation temperature records exist from the middle or high latitudes. While a variety of paleoproxy records provide critical temperature records from low elevations over recent centuries, melt layers preserved in alpine glaciers present an opportunity to develop calibrated, annually-resolved temperature records from high elevations. Here we present a 400-year temperature proxy record based on the melt-layer stratigraphy of two ice cores collected from Mt. Hunter in Denali National Park in the Central Alaska Range. The ice core record shows a 60-fold increase in water equivalent total annual melt between the pre-industrial period (before 1850 CE) and present day. We calibrate the melt record to summer temperatures based on weather station data from the ice core drill site, and find that the increase in melt production represents a summer warming rate of at least 1.92 +/- 0.31C/century during the last 100 years, exceeding rates of temperature increase at most low elevation sites in Alaska. The Mt. Hunter melt layer record is significantly (p < 0.05) correlated with surface temperatures in the central tropical Pacific through a Rossby-wave like pattern that enhances high temperatures over Alaska. Our results show that rapid alpine warming has taken place in the Alaska Range for at least a century and that conditions in the tropical oceans contribute to this warming.","pubRank":"1"}],"site":[{"NOAASiteId":"57580","siteName":"Mt. Hunter","siteCode":null,"mappable":"Y","locationName":"Continent>North America>United States Of America>Alaska","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["62.9333","-151.0833"]},"properties":{"southernmostLatitude":"62.9333","northernmostLatitude":"62.9333","westernmostLongitude":"-151.0833","easternmostLongitude":"-151.0833","minElevationMeters":"3900","maxElevationMeters":"3900"}},"paleoData":[{"dataTableName":"Hunter2018meltcore1","NOAADataTableId":"35593","earliestYear":1952,"mostRecentYear":2011,"timeUnit":"CE","earliestYearBP":-2,"mostRecentYearBP":-61,"earliestYearCE":1952,"mostRecentYearCE":2011,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/icecore/trop/denali/hunter2018melt1.txt","urlDescription":"NOAA Template File","linkText":"Mt. 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