{"xmlId":"78040","NOAAStudyId":"36795","studyName":"Finnish Lapland June-August Air Temperature Reconstruction from 7.5-0 kY","doi":"https://doi.org/10.25921/qk69-4j68","uuid":"9057091e-7602-4e87-b0ed-9379c2f1f256","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":"CLIMATE RECONSTRUCTIONS","investigators":"Helama, S.; Arppe, L.; Timonen, M.; Mielikäinen, K.; Oinonen, M.","investigatorDetails":[{"firstName":"Samuli","lastName":"Helama","initials":"S.","orcId":"0000-0002-9777-3354"},{"firstName":"Laura","lastName":"Arppe","initials":"L.","orcId":null},{"firstName":"Mauri","lastName":"Timonen","initials":"M.","orcId":null},{"firstName":"Kari","lastName":"Mielikäinen","initials":"K.","orcId":null},{"firstName":"Markku","lastName":"Oinonen","initials":"M.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"Academy of Finland","fundingGrant":"251287, 251441, 288083, 288267, 292788, 339788"}],"studyNotes":"Temperature reconstruction (June-August) for Finnish Lapland from tree-ring blue intensity and maximum latewood density over the past 7.5 thousand years","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/36795","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-36795.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-recon-36795.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction","studyCode":null,"scienceKeywords":["Arctic","Air Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2022-09-02","entryId":"noaa-recon-36795","earliestYearBP":7435,"mostRecentYearBP":-60,"earliestYearCE":-5485,"mostRecentYearCE":2010,"publication":[{"author":{"name":"Helama, S., Herva, H., Arppe, L., Gunnarson, B., Frank, T., Holopainen, J., Nöjd, P., Mäkinen, H., Mielikäinen, K., Sutinen, R., Timonen, M., Uusitalo, J., Oinonen, M."},"pubYear":2022,"title":"Disentangling the evidence of Milankovitch forcing from tree-ring and sedimentary records","journal":"Frontiers of Earth Science","volume":"10","edition":null,"issue":null,"pages":null,"reportNumber":"871641","citation":"Helama, S., Herva, H., Arppe, L., Gunnarson, B., Frank, T., Holopainen, J., Nöjd, P., Mäkinen, H., Mielikäinen, K., Sutinen, R., Timonen, M., Uusitalo, J., Oinonen, M. 2022. Disentangling the evidence of Milankovitch forcing from tree-ring and sedimentary records. Frontiers of Earth Science, 10, 871641. doi: 10.3389/feart.2022.871641","type":"publication","identifier":{"type":"doi","id":"10.3389/feart.2022.871641","url":"http://dx.doi.org/10.3389/feart.2022.871641"},"abstract":"Tree-ring records constitute excellent high-resolution data and provide valuable information for climate science and paleoclimatology. Tree-ring reconstructions of past temperature variations agree to show evidence for annual-to-centennial anomalies in past climate and place the industrial-era warming in the context of the late Holocene climate patterns and regimes. Despite their wide use in paleoclimate research, however, tree rings have also been deemed unsuitable as low-frequency indicators of past climate. The arising debate concerns whether the millennia-long tree-ring records show signals of orbital forcing due to the Milankovitch cycles. Here, we produce a summer-temperature reconstruction from tree-ring chronology running through mid- and late-Holocene times (since 5486 BCE) comprising minimum blue channel light intensity (BI). The BI reconstruction correlates with existing and new tree-ring chronologies built from maximum latewood density (MXD) and, unlike the MXD data, shows temperature trends on Milankovitch scales comparable to various types of sedimentary proxy across the circumpolar Arctic. Our results demonstrate an unrevealed potential of novel, unconventional tree-ring variables to contribute to geoscience and climate research by their capability to provide paleoclimate estimates from inter-annual scales up to those relevant to orbital forcing.","pubRank":"1"}],"site":[{"NOAASiteId":"59603","siteName":"Finnish Lapland","siteCode":null,"mappable":"N","locationName":"Continent>Europe>Northern Europe>Scandanavia>Finland","geo":{"geoType":"Feature","geometry":{"type":"POLYGON","coordinates":["66.75","69.91","21.17","28.73"]},"properties":{"southernmostLatitude":"66.75","northernmostLatitude":"69.91","westernmostLongitude":"21.17","easternmostLongitude":"28.73","minElevationMeters":null,"maxElevationMeters":null}},"paleoData":[{"dataTableName":"Finnish Lapland JJA AirTemp Helama2022","NOAADataTableId":"49512","earliestYear":-5485,"mostRecentYear":2010,"timeUnit":"CE","earliestYearBP":7435,"mostRecentYearBP":-60,"earliestYearCE":-5485,"mostRecentYearCE":2010,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/europe/finland/helama2022/helama2022-temp.txt","urlDescription":"NOAA Template File","linkText":"Finnish Lapland Air Temperature Reconstruction","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>year Common Era","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"year_CE"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>ring density","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"maximum latewood density","cvFormat":"Numeric","cvShortName":"mxd_r"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>ring density","cvError":"confidence interval>95% confidence interval lower bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"maximum latewood density","cvFormat":"Numeric","cvShortName":"mxd_L95"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>ring density","cvError":"confidence interval>95% confidence interval upper bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"maximum latewood density","cvFormat":"Numeric","cvShortName":"mxd_U95"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"bi_r"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":"confidence interval>95% confidence interval lower bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"bi_L95"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>temperature>air temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":"confidence interval>95% confidence interval upper bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Jun-Aug","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"bi_U95"}],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}