{"NOAAStudyId":"16790","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":"2014-07-04","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-16790.xml","doi":null,"earliestYearBP":1190,"earliestYearCE":760,"entryId":"noaa-recon-16790","funding":[{"fundingAgency":"Academy of Finland","fundingGrant":null}],"investigators":"Helama, S.; Vartiainen, M.; Holopainen, J.; Mäkelä, H.M.; Kolström, T.; Meriläinen, J.","mostRecentYearBP":-50,"mostRecentYearCE":2000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/16790","originalSource":null,"publication":[{"abstract":"X-ray based tree-ring data of maximum latewood densities (MXD) was combined for south-eastern Finland. This data originated from subfossil and modern pine (Pinus sylvestris L.) materials comprising a continuous dendroclimatic record over the past millennium. Calibrating and verifying the MXD chronologies against the instrumental temperature data showed a promising opportunity to reconstruct warm-season (May through September) temperature variability. A new palaeotemperature record correlated statistically significantly with the long instrumental temperature records in the region and adjacent areas since the 1740s. Comparisons with tree-ring based (MXD and tree-ring width) reconstructions from northern Fennoscandia and northern Finland exhibited consistent summer temperature variations through the Medieval Climate Anomaly, Little Ice Age, and the 20th century warmth. A culmination of the LIA cooling during the early 18th century appeared consistently with the Maunder Minimum, when the solar activity was drastically reduced. A number of coolest reconstructed events between AD 1407 and 1902 were coeval to years of crop failure and famine as documented in the agro-historical chronicles. Results indicate an encouraging possibility of warm-season temperature reconstructions using middle/south boreal tree-ring archives to detail and enhance the understanding of past interactions between humans, ecosystems and the earth.","author":{"name":"Samuli Helama, Matti Vartiainen, Jari Holopainen, Hanna M. Mäkelä, Taneli Kolström, Jouko Meriläinen"},"citation":"Samuli Helama, Matti Vartiainen, Jari Holopainen, Hanna M. Mäkelä, Taneli Kolström, Jouko Meriläinen. 2014. A palaeotemperature record for the Finnish Lakeland based on microdensitometric variations in tree rings. Geochronometria, 41(3), 265-277. doi: 10.2478/s13386-013-0163-0","edition":null,"identifier":{"id":"10.2478/s13386-013-0163-0","type":"doi","url":"http://dx.doi.org/10.2478/s13386-013-0163-0"},"issue":"3","journal":"Geochronometria","pages":"265-277","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"A palaeotemperature record for the Finnish Lakeland based on microdensitometric variations in tree rings","type":"publication","volume":"41"}],"reconstruction":"Y","scienceKeywords":["Air Temperature Reconstruction"],"site":[{"NOAASiteId":"56124","geo":{"geoType":"Feature","geometry":{"coordinates":["61.8","62.85","25.48","31.17"],"type":"POLYGON"},"properties":{"easternmostLongitude":"31.17","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"62.85","southernmostLatitude":"61.8","westernmostLongitude":"25.48"}},"locationName":"Continent>Europe>Northern Europe>Scandanavia>Finland","mappable":"N","paleoData":[{"NOAADataTableId":"26992","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/finland/lakeland2014.txt","linkText":"Finnish Lakeland May-September Temperature Reconstruction","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"based on latewood density","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring density","cvMethod":null,"cvSeasonality":"5-month period>May-Sep","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"based on latewood density","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":"95% confidence interval lower bound","cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring density","cvMethod":null,"cvSeasonality":"5-month period>May-Sep","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"based on latewood density","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":"95% confidence interval upper bound","cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring density","cvMethod":null,"cvSeasonality":"5-month period>May-Sep","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"based on latewood density","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":"99% confidence interval upper bound","cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring density","cvMethod":null,"cvSeasonality":"5-month period>May-Sep","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"based on latewood density","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":"99% confidence interval lower bound","cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring density","cvMethod":null,"cvSeasonality":"5-month period>May-Sep","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"}]}],"dataTableName":"Lakeland2014temp","dataTableNotes":null,"earliestYear":760,"earliestYearBP":1190,"earliestYearCE":760,"mostRecentYear":2000,"mostRecentYearBP":-50,"mostRecentYearCE":2000,"species":[],"timeUnit":"AD"}],"siteName":"Finnish Lakeland"}],"studyCode":null,"studyName":"Finnish Lakeland 1241 Year May-September Temperature Reconstruction","studyNotes":"Finnish Lakeland summer temperature reconstruction over the last millennium based on a maximum latewood density of subfossil and modern tree rings.","version":"1.0","xmlId":"14497"}