{"NOAAStudyId":"22294","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":"2017-02-13","dataPublisher":"NOAA","dataType":"TREE RING","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-tree-22294.xml","doi":"https://doi.org/10.25921/vqn5-0k16","earliestYearBP":131,"earliestYearCE":1819,"entryId":"noaa-tree-22294","funding":[],"investigators":"Kairaitis, J.; Sohar, K.; Vitas, A.","mostRecentYearBP":-21,"mostRecentYearCE":1971,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22294","originalSource":null,"publication":[{"abstract":"Pedunculate oak (Quercus robur L.) is one of the widely used and dendrochronologically investigated species in Europe. Still, it is a problematical dating object if its outermost section is missing partly or totally. Thus, we need sapwood estimation of living trees. As sapwood amount varies geographically, numbers of sapwood rings have been published for different regions in Europe but no such estimation has been done for the Baltic States yet. Therefore, this paper deals with the estimation of pedunculate oak sapwood growing in the eastern Baltic region, i.e. in Finland, Estonia, Latvia, and Lithuania.\r\n\r\nIn total, 668 oak core samples of living trees from 43 stands were investigated. Ring widths were measured and the number of sapwood rings was determined according to two criteria: difference of colour and absence of tyloses in earlywood vessels. The samples were divided into two sets, according to the tH-values between site chronologies and the major geobotanical sub-provinces. Thus, the nine Finnish and western Estonian sites were attributed to the western region and the 34 eastern Estonian, Latvian and Lithuanian sites to the eastern region.\r\n\r\nAs the result of a statistical analysis, we explain that the number of oak sapwood rings ranges from 4.09 to 20.85 and 6.45 to 18.02 within 95% confidence limits in the western and eastern regions, respectively. For the three Baltic countries and southern Finland in general, we recommend to consider a sapwood estimate of 6.18-18.71 rings. Regarding earlier studies, the general European trend of decreasing sapwood ring number towards the east was confirmed. A geographical pattern of eastward decrease of the median sapwood ring number was noticed in the Baltics as well. The chronology based upon 668 samples of living oak trees from all sites covered the period of 1631-2008.","author":{"name":"Kristina Sohar, Adomas Vitas, Alar Läänelaid"},"citation":"Kristina Sohar, Adomas Vitas, Alar Läänelaid. 2012. Sapwood estimates of pedunculate oak (Quercus robur L.) in eastern Baltic. Dendrochronologia, 30(1), 49-56. doi: 10.1016/j.dendro.2011.08.001","edition":null,"identifier":{"id":"10.1016/j.dendro.2011.08.001","type":"doi","url":"http://dx.doi.org/10.1016/j.dendro.2011.08.001"},"issue":"1","journal":"Dendrochronologia","pages":"49-56","pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Sapwood estimates of pedunculate oak (Quercus robur L.) in eastern Baltic","type":"publication","volume":"30"}],"reconstruction":"N","scienceKeywords":["Quercus robur L. = Quercus pendunculata Ehrl.","QURO","English oak"],"site":[{"NOAASiteId":"57283","geo":{"geoType":"Feature","geometry":{"coordinates":["55.565","22.395"],"type":"POINT"},"properties":{"easternmostLongitude":"22.395","maxElevationMeters":"170","minElevationMeters":"170","northernmostLatitude":"55.565","southernmostLatitude":"55.565","westernmostLongitude":"22.395"}},"locationName":"Continent>Europe>Northern Europe>Lithuania","mappable":"Y","paleoData":[{"NOAADataTableId":"33408","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/lith031.txt","linkText":"lith031.txt","urlDescription":"Correlation Stats","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/europe/lith031.rwl","linkText":"lith031.rwl","urlDescription":"Raw Measurements","variables":[{"cvAdditionalInfo":null,"cvDataType":"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":"units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999","cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>total ring width"}]},{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/europe/lith031-noaa.rwl","linkText":"lith031-noaa.rwl","urlDescription":"Raw Measurements - NOAA Template File","variables":[{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":"age_CE","cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Tree ID: KALTIN02; 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