{"xmlId":"85503","NOAAStudyId":"44988","studyName":"Stephens fire data from Illilouette Creek basin - IMPD USILL001","doi":"https://doi.org/10.25921/8vxn-9c28","uuid":"00acea4c-965d-4eef-9eca-0845e05e6712","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":"FIRE HISTORY","investigators":"Stephens, S.L.","investigatorDetails":[{"firstName":"Scott","lastName":"Stephens","initials":"S.L.","orcId":null}],"version":"1.0","funding":[],"studyNotes":"This dataset was contributed as part of the North American Tree-ring Fire Scar Synthesis (NAFSS) project (https://www.ncei.noaa.gov/access/paleo-search/study/34853). Data were contributed to the project from the original data generators.\r\n\r\nSample Storage Location: \r\nDating Method: Dated\r\nRelated ITRDB_Chronology: Not Applicable\r\n\r\nFire scar data from this site are available in FHX2 format at:\r\n  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usill001.fhx\r\nalong with associated metadata at:\r\n  https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usill001-fhx-noaa.txt","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/44988","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-fire-44988.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-fire-44988.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/fire-history","studyCode":"USILL001","scienceKeywords":null,"reconstruction":"N","contributionDate":"2026-07-09","entryId":"noaa-fire-44988","earliestYearBP":327,"mostRecentYearBP":-55,"earliestYearCE":1623,"mostRecentYearCE":2005,"publication":[{"author":{"name":"Collins, B.M. and Stephens, S.L."},"pubYear":2007,"title":"Managing natural wildfires in Sierra Nevada wilderness areas","journal":"Frontiers in Ecology and the Environment","volume":"5","edition":null,"issue":"10","pages":"523-527","reportNumber":null,"citation":"Collins, B.M. and Stephens, S.L. 2007. Managing natural wildfires in Sierra Nevada wilderness areas. Frontiers in Ecology and the Environment, 5(10), 523-527. doi: 10.1890/070007","type":"publication","identifier":{"type":"doi","id":"10.1890/070007","url":"http://dx.doi.org/10.1890/070007"},"abstract":"Past policies of excluding all wildfires from forests throughout the US are giving way to new strategies that incorporate naturally ignited fires into forest and fire management. In this paper, we evaluate the effects of long-standing natural fire programs (now referred to as wildland fire use or WFU) in two Sierra Nevada wilderness areas. We present reconstructions of historical fire occurrence using tree ring proxies, along with chronologies of tree recruitment, to infer the effects of WFU programs on forest structure. Historically, fires burned every 6 to 9 years, which moderated tree recruitment. Fire suppression policies established in the early 1900s successfully excluded fire and allowed for unprecedented tree recruitment. Despite the substantial changes in forest structure and composition, the frequency and extent of fires during the current WFU period (1972present) approach historical levels. This information can provide some necessary insight in implementing WFU policy and developing management plans for similar forest types throughout the western US.","pubRank":"1"}],"site":[{"NOAASiteId":"62203","siteName":"Illilouette Creek basin - IMPD USILL001","siteCode":null,"mappable":"Y","locationName":"Continent>North America>United States Of America>California","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["37.675156","-119.485662"]},"properties":{"southernmostLatitude":"37.675156","northernmostLatitude":"37.675156","westernmostLongitude":"-119.485662","easternmostLongitude":"-119.485662","minElevationMeters":"2239","maxElevationMeters":"2239"}},"paleoData":[{"dataTableName":"USILL001","NOAADataTableId":"59869","earliestYear":1623,"mostRecentYear":2005,"timeUnit":"CE","earliestYearBP":327,"mostRecentYearBP":-55,"earliestYearCE":1623,"mostRecentYearCE":2005,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usill001.fhx","urlDescription":"Fire Scar Data","linkText":"usill001.fhx","variables":[{"cvDataType":"FIRE HISTORY|TREE RING","cvWhat":"formation property>event layer>tree demographic and injury and fire event code","cvMaterial":"biological material>tissue>wood","cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"text description of fire event; refer to IMPD documentation for description of codes","cvFormat":"Character","cvShortName":"rec_type"},{"cvDataType":"FIRE HISTORY|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":"FIRE HISTORY|TREE RING","cvWhat":"sampling metadata>sample identification","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"series"}],"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usill001-fhx-noaa.txt","urlDescription":"More Information","linkText":"usill001-fhx-noaa.txt","variables":[{"cvDataType":"FIRE HISTORY|TREE RING","cvWhat":"formation property>event layer>tree demographic and injury and fire event code","cvMaterial":"biological material>tissue>wood","cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"text description of fire event; refer to IMPD documentation for description of codes","cvFormat":"Character","cvShortName":"rec_type"},{"cvDataType":"FIRE HISTORY|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":"FIRE HISTORY|TREE RING","cvWhat":"sampling metadata>sample identification","cvMaterial":null,"cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"series"}],"NOAAKeywords":["earth science>paleoclimate>fire history>fire scar dates"]}]}]}],"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":"CC0","dataLicenseUrl":"https://creativecommons.org/publicdomain/zero/1.0/"}