{"NOAAStudyId":"12784","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":"2010-06-10","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-12784.xml","doi":"https://doi.org/10.25921/5j3z-n494","earliestYearBP":1396,"earliestYearCE":554,"entryId":"noaa-tree-12784","funding":[],"investigators":"Esper, J.; Treydte, K.; Winiger, M.","mostRecentYearBP":-40,"mostRecentYearCE":1990,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12784","originalSource":null,"publication":[{"abstract":"We present an analysis of 28 juniper tree-ring sites sampled over the last decades by several research teams in the Tien Shan and Karakorum mountains of western central Asia. Ring-width chronologies were developed on a site-by-site basis, using a detrending technique designed to retain low-frequency climate variations. Site chronologies were grouped according to their distance from the upper timberline in the Tien Shan (~3,400 m a.s.l.) and Karakorum (~4,000 m), and low- and high-elevation composite chronologies combining data from both mountain systems developed. Comparison of these elevational subsets revealed significant coherence (r = 0.72) over the 1438–1995 common period, which is inconsistent with the concept of differing environmental signals captured in tree-ring data along elevational gradients. It is hypothesized that the uniform growth behavior in central Asian juniper trees has been forced by solar radiation variations controlled via cloud cover changes, but verification of this assumption requires further fieldwork. The high-elevation composite chronology was further compared with existing temperature reconstructions from the Karakorum and Tien Shan, and long-term trend differences discussed. We concluded that the extent of warmth during medieval times cannot be precisely estimated based on ring-width data currently available. ","author":null,"citation":"Esper J, Frank DC, Wilson RJS, Büntgen U, Treydte K (2007) \r\nUniform growth trends among central Asian low and high elevation \r\njuniper tree sites. \r\nTrees - Structure and Function\r\nVolume 21, Number 2, 141-150, DOI: 10.1007/s00468-006-0104-0\r\n","edition":null,"identifier":{"id":"10.1007/s00468-006-0104-0","type":"doi","url":"http://dx.doi.org/10.1007/s00468-006-0104-0"},"issue":null,"journal":"Trees - Structure and Function","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Uniform growth trends among central Asian low and high elevation  juniper tree sites","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["JUSP","juniper","Juniperus spp. L."],"site":[{"NOAASiteId":"52939","geo":{"geoType":"Feature","geometry":{"coordinates":["36.5833","75.0833"],"type":"POINT"},"properties":{"easternmostLongitude":"75.0833","maxElevationMeters":"3600","minElevationMeters":"3600","northernmostLatitude":"36.5833","southernmostLatitude":"36.5833","westernmostLongitude":"75.0833"}},"locationName":"Continent>Asia>Southcentral Asia>Pakistan","mappable":"Y","paleoData":[{"NOAADataTableId":"21117","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/paki011.txt","linkText":"paki011.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/asia/paki011.rwl","linkText":"paki011.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/asia/paki011-noaa.rwl","linkText":"paki011-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: epm0301z; 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