{"NOAAStudyId":"12708","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":"2011-05-18","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-12708.xml","doi":"https://doi.org/10.25921/1q87-9452","earliestYearBP":1179,"earliestYearCE":771,"entryId":"noaa-tree-12708","funding":[],"investigators":"Villanueva-Diaz, J.; Stahle, D.W.; Therrell, M.D.; Acuña Soto, R.","mostRecentYearBP":-58,"mostRecentYearCE":2008,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12708","originalSource":null,"publication":[{"abstract":"Ancient Montezuma baldcypress (Taxodium mucronatum) trees \nfound in Barranca de Amealco, Queretaro, have been used to \ndevelop a 1,238-year treering chronology that is correlated \nwith precipitation, temperature, drought indices, and crop \nyields in central Mexico. This chronology has been used to \nreconstruct the spring-early summer soil moisture balance \nover the heartland of the Mesoamerican cultural province, \nand is the first exactly dated, annually resolved paleoclimatic \nrecord for Mesoamerica spanning the Late Classic, Post Classic, \nColonial, and modern eras. The reconstruction indicates that \nthe Terminal Classic drought extended into central Mexico, \nsupporting other sedimentary and speleothem evidence for this \nearly 10th century drought in Mesoamerica. The reconstruction \nalso documents severe and sustained drought during the decline \nof the Toltec state (1149-1167) and during the Spanish conquest \nof the Aztec state (1514-1539), providing a new precisely dated \nclimate framework for Mesoamerican cultural change. ","author":null,"citation":"Stahle, D.W., J.V. Diaz, D.J. Burnette, J.C. Paredes, \nR.R. Heim Jr., F.K. Fye, R. Acuna Soto, M.D. Therrell, \nM.K. Cleaveland, and D.K. Stahle. 2011. \nMajor Mesoamerican droughts of the past millennium. \nGeophysical Research Letters, Vol. 38, L05703, \ndoi:10.1029/2010GL046472.","edition":null,"identifier":{"id":"10.1029/2010GL046472","type":"doi","url":"http://dx.doi.org/10.1029/2010GL046472"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Major Mesoamerican droughts of the past millennium","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["drought"],"site":[{"NOAASiteId":"48120","geo":{"geoType":"Feature","geometry":{"coordinates":["20.35","-100.1167"],"type":"POINT"},"properties":{"easternmostLongitude":"-100.1167","maxElevationMeters":"1970","minElevationMeters":"1970","northernmostLatitude":"20.35","southernmostLatitude":"20.35","westernmostLongitude":"-100.1167"}},"locationName":"Continent>North America>Mexico>Queretaro de Arteaga","mappable":"Y","paleoData":[{"NOAADataTableId":"21017","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/mexi047.txt","linkText":"mexi047.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/mexico/mexi047.rwl","linkText":"mexi047.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/mexico/mexi047-noaa.rwl","linkText":"mexi047-noaa.rwl","urlDescription":"Raw Measurements - NOAA Template File","variables":[{"cvAdditionalInfo":"Tree ID: B0942D; 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