{"xmlId":"75953","NOAAStudyId":"34272","studyName":"Nielsen - Easterville - THOC - ITRDB CANA637","doi":"https://doi.org/10.25921/wvv5-hn91","uuid":"ebdeb9e3-1887-411f-815d-25d227760d24","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":"TREE RING","investigators":"Nielsen, E.; St. George, S.","investigatorDetails":[{"firstName":"Erik","lastName":"Nielsen","initials":"E.","orcId":null},{"firstName":"Scott","lastName":"St. George","initials":"S.","orcId":"0000-0002-0945-4944"}],"version":"1.0","funding":[],"studyNotes":"NOAA Template Raw Measurements file added 2021-10-19.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/34272","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-tree-34272.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-tree-34272.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/tree-ring","studyCode":"CANA637","scienceKeywords":["Thuja occidentalis L.","American arborvitae","THOC","northern white-cedar"],"reconstruction":"N","contributionDate":"2021-09-27","entryId":"noaa-tree-34272","earliestYearBP":353,"mostRecentYearBP":-48,"earliestYearCE":1597,"mostRecentYearCE":1998,"publication":[{"author":{"name":"Scott St. George, David M. Meko, Martin-Philippe Girardin, Glen M. MacDonald, Erik Nielsen, Greg T. Pederson, David J. Sauchyn, Jacques C. Tardif, and Emma Watson"},"pubYear":2009,"title":"The Tree-Ring Record of Drought on the Canadian Prairies","journal":"Journal of Climate","volume":"22","edition":null,"issue":"3","pages":"689-710","reportNumber":null,"citation":"Scott St. George, David M. Meko, Martin-Philippe Girardin, Glen M. MacDonald, Erik Nielsen, Greg T. Pederson, David J. Sauchyn, Jacques C. Tardif, and Emma Watson. 2009. The Tree-Ring Record of Drought on the Canadian Prairies. Journal of Climate, 22(3), 689-710. doi: 10.1175/2008JCLI2441.1","type":"publication","identifier":{"type":"doi","id":"10.1175/2008JCLI2441.1","url":"http://dx.doi.org/10.1175/2008JCLI2441.1"},"abstract":"Ring-width data from 138 sites in the Canadian Prairie Provinces and adjacent regions are used to estimate summer drought severity during the past several hundred years. The network was divided into five regional groups based on geography, tree species, and length of record: the eastern Rockies, northern Saskatchewan, central Manitoba, southern Manitoba, and northwestern Ontario. Regional tree-ring records are primarily related to summer moisture and drought conditions, and are less responsive to droughts caused by deficits in winter precipitation. These summer-sensitive data are not linearly related to major modes of climate variability, including ENSO and the Pacific decadal oscillation (PDO), which primarily affect the climate of western Canada during winter. Extended drought records inferred from tree rings indicate that drought on the Canadian Prairies has exhibited considerable spatial heterogeneity over the last several centuries. For northern Saskatchewan and northwestern Ontario, intervals of persistently low tree growth during the twentieth century were just as long as or longer than low-growth intervals in the eighteenth or nineteenth centuries. Longer records from southern Alberta suggest that the most intense dry spell in that area during the last 500 yr occurred during the 1720s. At the eastern side of the prairies, the longest dry event is centered around 1700 and may coincide with low lake stands in Manitoba, Minnesota, and North Dakota. Although the Canadian Prairies were dry at times during the 1500s, there is no regional analog to the sixteenth-century \"megadroughts\" that affected much of the western United States and northern Mexico.","pubRank":"1"}],"site":[{"NOAASiteId":"59059","siteName":"Easterville","siteCode":null,"mappable":"Y","locationName":"Continent>North America>Canada","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["52.92","-99.18"]},"properties":{"southernmostLatitude":"52.92","northernmostLatitude":"52.92","westernmostLongitude":"-99.18","easternmostLongitude":"-99.18","minElevationMeters":"280","maxElevationMeters":"280"}},"paleoData":[{"dataTableName":"CANA637","NOAADataTableId":"47085","earliestYear":1597,"mostRecentYear":1998,"timeUnit":"CE","earliestYearBP":353,"mostRecentYearBP":-48,"earliestYearCE":1597,"mostRecentYearCE":1998,"coreLengthMeters":null,"dataTableNotes":null,"species":[{"speciesCode":"THOC","scientificName":"Thuja occidentalis L.","resourceId":null,"commonName":["northern white-cedar","American arborvitae"]}],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/cana637.txt","urlDescription":"Correlation Stats","linkText":"cana637.txt","variables":[],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/canada/cana637.rwl","urlDescription":"Raw Measurements","linkText":"cana637.rwl","variables":[{"cvDataType":"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":"age_CE"},{"cvDataType":"TREE RING","cvWhat":"physical property>width>total ring width","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999","cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/canada/cana637-rwl-noaa.txt","urlDescription":"Raw Measurements - NOAA Template File","linkText":"cana637-rwl-noaa.txt","variables":[{"cvDataType":"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":"age_CE"},{"cvDataType":"TREE RING","cvWhat":"physical property>width>total ring width","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"Tree ID: e9502a; 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