{"NOAAStudyId":"24471","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":"2018-06-22","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-24471.xml","doi":"https://doi.org/10.25921/80sq-9h56","earliestYearBP":327,"earliestYearCE":1623,"entryId":"noaa-tree-24471","funding":[{"fundingAgency":"US Geological Survey","fundingGrant":null}],"investigators":"Marcinkowski, K.; Peterson, D.L.","mostRecentYearBP":-61,"mostRecentYearCE":2011,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/24471","originalSource":null,"publication":[{"abstract":"A stationary response of tree radial growth to climatic variables is assumed as a basis for climatic reconstructions and future growth projections in response to climate change. Mountain hemlock (Tsuga mertensiana (Bong.) Carriere) trees on the western slopes of the North Cascade Range (Washington, USA) were examined for stability in growth response to climatic influences at a small spatial scale. Moving correlation functions demonstrate that climate-growth interactions are nonstationary over time, alternating between periods of significant and nonsignificant responses. Correlations between growth and winter precipitation have weakened, becoming statistically insignificant in the last decade, but correlations with spring temperature and previous-year summer temperature have strengthened, becoming statistically significant. The Pacific Decadal Oscillation influences patterns in climate-growth correlations but does not seem to account for the most recent changes in correlation strength. At an interannual scale, growth differs between El Nino Southern Oscillation phases, specifically between El Nino and La Nina years and between La Nina and neutral phase years. The variability in growth response to climate at interannual and interdecadal time frames, especially with the climate changes emerging in recent decades, will challenge the reliability and accuracy of reconstruction and predictive models.","author":{"name":"Kailey Marcinkowski, David L. Peterson, Gregory J. Ettl"},"citation":"Kailey Marcinkowski, David L. Peterson, Gregory J. Ettl. 2015. Nonstationary temporal response of mountain hemlock growth to climatic variability in the North Cascade Range, Washington, USA. Canadian Journal of Forest Research, 45(6), 676-688. doi: 10.1139/cjfr-2014-0231","edition":null,"identifier":{"id":"10.1139/cjfr-2014-0231","type":"doi","url":"http://dx.doi.org/10.1139/cjfr-2014-0231"},"issue":"6","journal":"Canadian Journal of Forest Research","pages":"676-688","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"Nonstationary temporal response of mountain hemlock growth to climatic variability in the North Cascade Range, Washington, USA","type":"publication","volume":"45"}],"reconstruction":"N","scienceKeywords":["TSME","mountain hemlock","Tsuga mertensiana (Bong.) Carrière"],"site":[{"NOAASiteId":"57671","geo":{"geoType":"Feature","geometry":{"coordinates":["48.573292","-120.826407"],"type":"POINT"},"properties":{"easternmostLongitude":"-120.826407","maxElevationMeters":"1540","minElevationMeters":"1540","northernmostLatitude":"48.573292","southernmostLatitude":"48.573292","westernmostLongitude":"-120.826407"}},"locationName":"Continent>North America>United States Of America>Washington","mappable":"Y","paleoData":[{"NOAADataTableId":"36214","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/wa144.txt","linkText":"wa144.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/northamerica/usa/wa144.rwl","linkText":"wa144.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/northamerica/usa/wa144-noaa.rwl","linkText":"wa144-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: EP12b; 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