{"xmlId":"4284","NOAAStudyId":"2937","studyName":"Chbouki - Tazzeka - CDAT - ITRDB MORC013","doi":"https://doi.org/10.25921/fvdx-zs27","uuid":"925398c2-9aca-4334-9749-c71eed7df7ae","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":"Chbouki, N.; Stockton, C.W.; Meko, D.M.; Harlan, T.P.; Adams, R.K.","investigatorDetails":[{"firstName":"Nabil","lastName":"Chbouki","initials":"N.","orcId":null},{"firstName":"Charles","lastName":"Stockton","initials":"C.W.","orcId":null},{"firstName":"David","lastName":"Meko","initials":"D.M.","orcId":"0000-0002-5171-2724"},{"firstName":"Thomas","lastName":"Harlan","initials":"T.P.","orcId":null},{"firstName":"Rex","lastName":"Adams","initials":"R.K.","orcId":null}],"version":"1.0","funding":[],"studyNotes":"NOAA Template Chronology file added 2018-12-13. NOAA Template Raw Measurements file added 2019-05-01.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/2937","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-tree-2937.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-tree-2937.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/tree-ring","studyCode":"MORC013","scienceKeywords":["Atlas cedar","Cedrus atlantica (Endl.) Manetti ex Carrière","CDAT","Atlantic cedar"],"reconstruction":"N","contributionDate":"2005-08-25","entryId":"noaa-tree-2937","earliestYearBP":105,"mostRecentYearBP":-34,"earliestYearCE":1845,"mostRecentYearCE":1984,"publication":[{"author":{"name":"Chbouki, N."},"pubYear":1992,"title":"Spatio-temporal characteristics of drought as inferred from tree-ring data in Morocco","journal":"PhD dissertation","volume":null,"edition":null,"issue":null,"pages":null,"reportNumber":null,"citation":"Chbouki, N. 1992. Spatio-temporal characteristics of drought as inferred from tree-ring data in Morocco. PhD Dissertation, University of Arizona, Tucson.","type":"publication","identifier":{"type":"online resource","id":"N/A","url":"https://ltrr.arizona.edu/content/spatio-temporal-characteristics-drought-inferred-tree-ring-data-morocco"},"abstract":"Long-term tree-ring series of Cedrus atlantica have been utilized to reconstruct and characterize past drought occurrences in Morocco. Based on the close relationship between tree growth and rainfall variations, the best tree-ring indicator of drought has been found to be, x0 = mu - 0.75 sigma, with mu and sigma the mean and standard deviation of the tree-ring series. In Morocco, drought is a short event lasting 1.7 years on average with 84% of the events lasting less than 2 years. The average maximum duration exceeds 4 years. It is associated with a 40% deficit about normal moisture availability which can add up to more than 125% when the anomalies persist. The average empirical recurrence interval of drought is 8 years. Long-term persistence has been characterized by the Hurst coefficient. Over the domain of study, the mean Hurst coefficient is.765. The tree-ring series show a periodic behavior with two major peaks at 22 and 66 years. Drought characteristics have been extended from the tree-ring sites to other regions such as the agricultural plains using geostatistical methods. The drought prone areas are located in central Morocco, including the Sais, the Gharb and central Middle Atlas, which experience longer, more severe and more persistent droughts. The northern latitudes experience milder and shorter drought events. The cost for spatial extension of the results was greater kriging errors which make the estimates less reliable. However, cokriging significantly improved the reliability and the quality of the estimates. A regionalization, using cluster analysis, was found to follow the natural climatic and orographic zones of north central Morocco. The tree-ring data were used to reconstruct spatial patterns of moisture anomalies for the period 1845-1974. Three atmospheric factors appear to be important: (1) the relative strength and position of the Azores High, (2) the importance and location of the local cyclogenesis centers, (3) the importance of the northeastern perturbations coming from the Mediterranean sea. The periods 1860-1890, 1925-1950 and the 1970's are associated with dry anomalies while the periods 1900-1920 and 1950-1970 are associated with wet anomalies. They exhibit a rhythmic succession with a 20-year periodicity.","pubRank":"1"}],"site":[{"NOAASiteId":"15416","siteName":"Tazzeka","siteCode":null,"mappable":"Y","locationName":"Continent>Africa>Northern Africa>Morocco","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["34.08","-4.18"]},"properties":{"southernmostLatitude":"34.08","northernmostLatitude":"34.08","westernmostLongitude":"-4.18","easternmostLongitude":"-4.18","minElevationMeters":"1900","maxElevationMeters":"1900"}},"paleoData":[{"dataTableName":"MORC013","NOAADataTableId":"4663","earliestYear":1845,"mostRecentYear":1984,"timeUnit":"CE","earliestYearBP":105,"mostRecentYearBP":-34,"earliestYearCE":1845,"mostRecentYearCE":1984,"coreLengthMeters":null,"dataTableNotes":null,"species":[{"speciesCode":"CDAT","scientificName":"Cedrus atlantica (Endl.) Manetti ex Carrière","resourceId":null,"commonName":["Atlantic cedar","Atlas cedar"]}],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/morc013.txt","urlDescription":"Correlation Stats","linkText":"morc013.txt","variables":[],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>more info"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013r-crn-noaa.txt","urlDescription":"Chronology - NOAA Template File","linkText":"morc013r-noaa.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>residual chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013a-crn-noaa.txt","urlDescription":"Chronology - NOAA Template File","linkText":"morc013a-noaa.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>ARSTAN chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013-crn-noaa.txt","urlDescription":"Chronology - NOAA Template File","linkText":"morc013-noaa.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>standard chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013r.crn","urlDescription":"Chronology","linkText":"morc013r.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>residual chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013a.crn","urlDescription":"Chronology","linkText":"morc013a.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>ARSTAN chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/morc013.crn","urlDescription":"Chronology","linkText":"morc013.crn","variables":[{"cvDataType":"TREE RING","cvWhat":"statistical variable>proxy composite>tree ring standardized growth index","cvMaterial":null,"cvError":null,"cvUnit":null,"cvSeasonality":null,"cvDetail":"composited","cvMethod":"computational method>tree ring chronology method>standard chronology method","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"TREE RING","cvWhat":"sampling metadata>number of samples","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless>count","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"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":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/africa/morc013-rwl-noaa.txt","urlDescription":"Raw Measurements - NOAA Template File","linkText":"morc013-rwl-noaa.txt","variables":[{"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: TZK19A; 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":"TZK19A_raw"},{"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: TZK18B; 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":"TZK18B_raw"},{"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: TZK18A; 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":"TZK18A_raw"},{"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: TZK17B; 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":"TZK17B_raw"},{"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: TZK17A; 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":"TZK17A_raw"},{"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: TZK16B; 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":"TZK16B_raw"},{"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: TZK16A; 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":"TZK16A_raw"},{"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: TZK15B; 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":"TZK15B_raw"},{"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: TZK15A; 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":"TZK15A_raw"},{"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: TZK14B; 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":"TZK14B_raw"},{"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: TZK14A; 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":"TZK14A_raw"},{"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: TZK13B; 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":"TZK13B_raw"},{"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: TZK13A; 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":"TZK13A_raw"},{"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: TZK12B; 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":"TZK12B_raw"},{"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: TZK12A; 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":"TZK12A_raw"},{"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: TZK11B; 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":"TZK11B_raw"},{"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: TZK11A; 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":"TZK11A_raw"},{"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: TZK 5B; 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":"TZK_5B_raw"},{"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: TZK 5A; 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":"TZK_5A_raw"},{"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: TZK 4B; 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":"TZK_4B_raw"},{"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: TZK 4A; 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":"TZK_4A_raw"},{"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: TZK 3B; 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":"TZK_3B_raw"},{"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: TZK 3A; 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":"TZK_3A_raw"},{"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: TZK 2B; 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":"TZK_2B_raw"},{"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: TZK 2A; 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":"TZK_2A_raw"},{"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: TZK 1B; 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":"TZK_1B_raw"},{"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: TZK 1A; 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":"TZK_1A_raw"},{"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: TZK19B; 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":"TZK19B_raw"}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>more info"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/africa/morc013.rwl","urlDescription":"Raw Measurements","linkText":"morc013.rwl","variables":[{"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},{"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":null}],"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"]}]}]}],"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}