{"NOAAStudyId":"12913","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":"2012-05-17","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-12913.xml","doi":null,"earliestYearBP":316,"earliestYearCE":1634,"entryId":"noaa-recon-12913","funding":[],"investigators":"Pederson, N.; Bell, A.R.; Knight, T.A.; Leland, C.; Malcomb, N.; Anchukaitis, K.J.; Tackett, K.; Scheff, J.; Brice, A.; Catron, B.; Blozan, W.; Riddle, J.","mostRecentYearBP":-60,"mostRecentYearCE":2010,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12913","originalSource":null,"publication":[{"abstract":"The depth of the 2006-9 drought in the humid, southeastern US left several \r\nmetropolitan areas with only a 60-120 day water supply. To put the region's \r\nrecent drought variability in a long-term perspective, a dense and diverse \r\ntree-ring network-including the first records throughout the Apalachicola-\r\nChattahoochee-Flint river basin - is used to reconstruct drought from 1665 \r\nto 2010 CE. The network accounts for up to 58.1% of the annual variance \r\nin warm-season drought during the 20th century and captures wet eras during \r\nthe middle to late 20th century. The reconstruction shows that the recent \r\ndroughts are not unprecedented over the last 346 years. Indeed, droughts \r\nof extended duration occurred more frequently between 1696 and 1820. \r\nOur results indicate that the era in which local and state water supply \r\ndecisions were developed and the period of instrumental data upon which \r\nit is based are amongst the wettest since at least 1665. Given continued \r\ngrowth and subsequent industrial, agricultural and metropolitan demand \r\nthroughout the southeast, insights from paleohydroclimate records suggest \r\nthat the threat of water-related conflict in the region has potential \r\nto grow more intense in the decades to come. \r\n","author":null,"citation":"Pederson, N., A.R. Bell, T.A. Knight, C. Leland, N. Malcomb, K.J. Anchukaitis, \r\nK. Tackett, J. Scheff, A. Brice, B. Catron, W. Blozan, and J. Riddle. 2012. \r\nA long-term perspective on a modern drought in the American Southeast. \r\nEnvironmental Research Letters, Vol. 7, No. 1, 014034, January-March 2012. \r\ndoi:10.1088/1748-9326/7/1/014034 ","edition":null,"identifier":{"id":"10.1088/1748-9326/7/1/014034 ","type":"doi","url":"http://dx.doi.org/10.1088/1748-9326/7/1/014034 "},"issue":null,"journal":"Environmental Research Letters","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"A long-term perspective on a modern drought in the American Southeast","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Palmer Drought Index Reconstruction","drought"],"site":[{"NOAASiteId":"53046","geo":{"geoType":"Feature","geometry":{"coordinates":["32","35","-86","-83"],"type":"POLYGON"},"properties":{"easternmostLongitude":"-83","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"35","southernmostLatitude":"32","westernmostLongitude":"-86"}},"locationName":"Continent>North America>United States Of America","mappable":"N","paleoData":[{"NOAADataTableId":"21256","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>ground water"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/seusa2012pdsi.txt","linkText":"seusa2012pdsi.txt","urlDescription":"Data","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":null,"cvMethod":null,"cvSeasonality":"5-month period>Apr-Aug","cvShortName":null,"cvUnit":"dimensionless","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate index>Palmer Drought Severity Index"},{"cvAdditionalInfo":"20-year spline","cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":"smoothed","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"5-month period>Apr-Aug","cvShortName":null,"cvUnit":"dimensionless","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate index>Palmer Drought Severity Index"},{"cvAdditionalInfo":"number of chronologies","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":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":"verification coefficient of determination","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"5-month period>Apr-Aug","cvShortName":null,"cvUnit":"dimensionless","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate index>Palmer Drought Severity Index"}]},{"NOAAKeywords":["earth science>paleoclimate>reconstructions>ground water"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/seusa2012pdsi.xls","linkText":"seusa2012pdsi.xls","urlDescription":"Data","variables":[]}],"dataTableName":"ACF2012PDSI","dataTableNotes":null,"earliestYear":1634,"earliestYearBP":316,"earliestYearCE":1634,"mostRecentYear":2010,"mostRecentYearBP":-60,"mostRecentYearCE":2010,"species":[],"timeUnit":"AD"}],"siteName":"Apalachicola-Chattahoochee-Flint headwaters"}],"studyCode":null,"studyName":"Southeastern United States 346 Year PDSI Reconstruction","studyNotes":"Tree ring reconstruction of southeastern US drought (Palmer Drought Severity \nIndex, PDSI) for the headwaters of the Apalachicola-Chattahoochee-Flint (ACF) \nriver basin over the last 346 years. \n\nApalachicola-Chattahoochee-Flint (ACF) headwaters region, SE USA: \n~32-35°N, ~83-86°W ","version":"1.0","xmlId":"10979"}