{"xmlId":"74513","NOAAStudyId":"32833","studyName":"Greater Yellowstone Ecoregion 1,250 Year Maximum Temperature Reconstruction","doi":"https://doi.org/10.25921/3w61-bq07","uuid":"53485263-01c6-43c4-bc73-62b6b1684785","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":"CLIMATE RECONSTRUCTIONS","investigators":"King, K.E.; Rochner, M.L.; Harley, G.L.","investigatorDetails":[{"firstName":"Karen","lastName":"King","initials":"K.E.","orcId":"0000-0002-9148-5562"},{"firstName":"Maegen","lastName":"Rochner","initials":"M.L.","orcId":"0000-0002-2340-5428"},{"firstName":"Grant","lastName":"Harley","initials":"G.L.","orcId":"0000-0003-1557-8465"}],"version":"1.0","funding":[],"studyNotes":"Reconstruction of late-summer maximum air temperature based on latewood blue intensity from high-elevation Picea engelmannii tree-rings for 770-2019 CE.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/32833","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-32833.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-recon-32833.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction","studyCode":null,"scienceKeywords":["Air Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2021-04-07","entryId":"noaa-recon-32833","earliestYearBP":1180,"mostRecentYearBP":-69,"earliestYearCE":770,"mostRecentYearCE":2019,"publication":[{"author":{"name":"Karen J. Heeter, Maegen L. Rochner, Grant L. Harley"},"pubYear":2021,"title":"1,250 years of summer air temperature for the Greater Yellowstone Ecoregion (770-2019 CE)","journal":"Geophysical Research Letters","volume":null,"edition":null,"issue":null,"pages":null,"reportNumber":null,"citation":"Karen J. Heeter, Maegen L. Rochner, Grant L. Harley. 2021. 1,250 years of summer air temperature for the Greater Yellowstone Ecoregion (770-2019 CE). Geophysical Research Letters. . doi: 10.1029/2020GL092269","type":"publication","identifier":{"type":"doi","id":"10.1029/2020GL092269","url":"http://dx.doi.org/10.1029/2020GL092269"},"abstract":"Projected warming of global surface air temperatures will further exacerbate droughts, wildfires, and other agents of ecosystem stress. We use latewood blue intensity from high-elevation Picea engelmannii to reconstruct late-summer maximum air temperature for the Greater Yellowstone Ecoregion (GYE) spanning 770-2019 CE. Using a robust regression model (r2=0.60), the 1,250-year reconstruction reveals 2016 as the single-warmest year and the warming trend since ca. 2000 as the most intense. The Medieval Climate Anomaly contained the highest-ranking warm event (1050-1070 CE) and was characterized by substantial multi-decadal variability rather than a period of prolonged, homogeneous warming. We document regional expression of past warm and cool events, such as an anomalously warm period spanning the 15th-16th centuries, and the Maunder and Dalton minima of the Little Ice Age. Summer temperature variability across the GYE shows multi-centennial agreement with trends in solar irradiance, volcanic activity, snowpack, and other regional-to-hemispheric temperature records.","pubRank":"1"}],"site":[{"NOAASiteId":"58871","siteName":"Greater Yellowstone Ecoregion","siteCode":null,"mappable":"N","locationName":"Continent>North America>United States Of America","geo":{"geoType":"Feature","geometry":{"type":"POLYGON","coordinates":["44","45","-111","-110"]},"properties":{"southernmostLatitude":"44","northernmostLatitude":"45","westernmostLongitude":"-111","easternmostLongitude":"-110","minElevationMeters":null,"maxElevationMeters":null}},"paleoData":[{"dataTableName":"Yellowstone2021MaxTemp","NOAADataTableId":"45797","earliestYear":770,"mostRecentYear":2019,"timeUnit":"CE","earliestYearBP":1180,"mostRecentYearBP":-69,"earliestYearCE":770,"mostRecentYearCE":2019,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/yellowstone2021maxtemp.txt","urlDescription":"NOAA Template File","linkText":"Greater Yellowstone Ecoregion Maximum Temperature Reconstruction","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|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":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>maximum temperature>maximum surface temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":null,"cvUnit":"mathematical unit>standard deviation unit","cvSeasonality":"1-month period>Aug","cvDetail":"normalized","cvMethod":"computational method>statistical analysis method>regression analysis","cvAdditionalInfo":"maximum temperature (z-scores)","cvFormat":"Numeric","cvShortName":"MaxTemp"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>maximum temperature>maximum surface temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":"confidence interval>95% confidence interval lower bound","cvUnit":"mathematical unit>standard deviation unit","cvSeasonality":"1-month period>Aug","cvDetail":"normalized","cvMethod":"computational method>statistical analysis method>regression analysis","cvAdditionalInfo":"maximum temperature (z-scores) 5% Lower limit (z-scores)","cvFormat":"Numeric","cvShortName":"MaxTemp-"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvWhat":"earth system variable>temperature variable>maximum temperature>maximum surface temperature","cvMaterial":"reconstruction material>physical measurement>blue intensity","cvError":"confidence interval>95% confidence interval upper bound","cvUnit":"mathematical unit>standard deviation unit","cvSeasonality":"1-month period>Aug","cvDetail":"normalized","cvMethod":"computational method>statistical analysis method>regression analysis","cvAdditionalInfo":"maximum temperature (z-scores) 95% Upper limit (z-scores)","cvFormat":"Numeric","cvShortName":"MaxTemp+"}],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]}]}]}],"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}