{"NOAAStudyId":"18319","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":"2015-04-01","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-18319.xml","doi":null,"earliestYearBP":574,"earliestYearCE":1376,"entryId":"noaa-recon-18319","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"EAR-1304351"}],"investigators":"Krusic, P.J.; Cook, E.R.; Dukpa, D.; Putnam, A.; Rupper, S.; Schaefer, J.","mostRecentYearBP":-63,"mostRecentYearCE":2013,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/18319","originalSource":null,"publication":[{"abstract":"High-resolution tree-ring reconstructions from the Himalaya provide essential context for assessing impacts of future climate change on regional water reserves and downstream agriculture. Here we evaluate a small network of tree-ring chronologies from Bhutan to produce a 638-year summer temperature reconstruction, from 1376 - 2013 CE. Relative to the 1950 - 2013 CE average summer temperature three prominent cold periods stand out, 2 in the mid 15th century, and one in the late 17th century. The warmest period began in the first decade of the 21st century coinciding with the timing of general glacier recession in the eastern Himalaya that continues to the present. The Bhutan temperature reconstruction exhibits a significant correlation to known volcanic eruptions (p = 97%) and anomalously cold periods appear to align with solar irradiance minima in the 15th, late 17th and early 19th centuries, implying a link between solar variability and decadal-scale temperature variability.","author":{"name":"Krusic, P.J., E.R. Cook, D. Dukpa, A. Putnam, S. Rupper, and J. Schaefer"},"citation":"Krusic, P.J., E.R. Cook, D. Dukpa, A. Putnam, S. Rupper, and J. Schaefer. 2015. 638 years of summer temperature variability over the Bhutanese Himalaya. Geophysical Research Letters. . doi: 10.1002/2015GL063566","edition":null,"identifier":{"id":"10.1002/2015GL063566","type":"doi","url":"http://dx.doi.org/10.1002/2015GL063566"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2015,"reportNumber":null,"title":"638 years of summer temperature variability over the Bhutanese Himalaya","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Air Temperature Reconstruction"],"site":[{"NOAASiteId":"56503","geo":{"geoType":"Feature","geometry":{"coordinates":["27.4223","90.9675"],"type":"POINT"},"properties":{"easternmostLongitude":"90.9675","maxElevationMeters":"3268","minElevationMeters":"3268","northernmostLatitude":"27.4223","southernmostLatitude":"27.4223","westernmostLongitude":"90.9675"}},"locationName":"Continent>Asia>Southcentral Asia>Bhutan","mappable":"Y","paleoData":[{"NOAADataTableId":"28718","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/asia/bhutan/bhutan2015temp.txt","linkText":"Bhutan Himalaya 638 Year Summer Temperature Reconstruction","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|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":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring width","cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"10 yr low pass filter","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":"filtered","cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>physical measurement>ring width","cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"},{"cvAdditionalInfo":"number of tree ring samples","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count","cvWhat":"sampling metadata>number of samples"},{"cvAdditionalInfo":"original calibration and verification instrumental target temperature series (ACT)","cvDataType":"INSTRUMENTAL","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"}]}],"dataTableName":"Bhutan2015temp","dataTableNotes":null,"earliestYear":1376,"earliestYearBP":574,"earliestYearCE":1376,"mostRecentYear":2013,"mostRecentYearBP":-63,"mostRecentYearCE":2013,"species":[],"timeUnit":"AD"}],"siteName":"Ura-Dhur Composite"}],"studyCode":null,"studyName":"Bhutan 638 Year Tree-Ring Summer Temperature Reconstruction","studyNotes":"638 year summer temperature reconstruction for the Bhutan Himalaya, based on Picea spinulosa tree-ring chronologies.  Tree-ring data are included in the International Tree-Ring Data Bank, Site Code BT021.","version":"1.0","xmlId":"16025"}