{"NOAAStudyId":"17327","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":"2014-03-03","dataPublisher":"NOAA","dataType":"FIRE HISTORY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/fire-history","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-fire-17327.xml","doi":null,"earliestYearBP":3002,"earliestYearCE":-1052,"entryId":"noaa-fire-17327","funding":[],"investigators":"Higuera, P.E.; Chipman, M.L.; Barnes, J.L.; Urban, M.A.; Hu, F.S.","mostRecentYearBP":-57,"mostRecentYearCE":2007,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/17327","originalSource":null,"publication":[{"abstract":"Tundra fires have important ecological impacts permafrost, and carbon cycling, but the on vegetation, wildlife, pattern and controls of historic tundra fire regimes are fire and vegetation history poorly understood. We use sediment records from four lakes to in a highly flammable tundra region develop a 2000-yr and compare this history with previously published fire records to examine spatial across Arctic Alaska. The four sites span and temporal variability a modern climatic gradient of tundra burning in the Noatak National Preserve, from warmer, drier down-valley locations. Modern vegetation valley sites, and pollen data past two millennia. Peaks in event return intervals (FRIs), locations to cooler, generally moister up-valley varies from herb- to shrub-dominated tundra from down- to up- suggest that this spatial pattern in macroscopic charcoal accumulation which did not vary significantly vegetation persisted over the provide estimates of fire- at millennial time scales but did vary across space. Down-valley with median FRIs of 150 years (95% sites burned relatively frequently CI 101-150) over the past similar to those from ancient shrub tundra and modern boreal forest. At significantly longer than those at 128-285). These differences evaporative demand at shaped tundra fire two millennia, and FRI distributions statistically up-valley sites FRIs were down-valley sites, with a median FRI of 218 likely reflect the cooler up-valley sites, but local-scale regimes. Comparisons with other that the tundra biome can sustain a wide range years (95% CI growing-season temperatures and lower variability in vegetation may have also long-term fire records in Alaska reveal of burning, with individual FRIs from as low as 30 years to more than 5000 burning has occurred under a years. These records range of climatic and fire histories within Alaska suggests together indicate that vegetation scenarios. The that the ecological impacts frequent tundra variety of tundra of tundra burning likewise vary widely, for wildlife-habitat maintenance and for the responses with important implications of tundra biophysical and biogeochemical processes Key words: Alaska; Arctic; charcoal analysis; climatic to climatic change.","author":{"name":"Philip E. Higuera, Melissa L. Chipman, Jennifer L. Barnes, Michael A. Urban and\r\nFeng Sheng Hu"},"citation":"Philip E. Higuera, Melissa L. Chipman, Jennifer L. Barnes, Michael A. Urban and\r\nFeng Sheng Hu. 2011. Variability of tundra fire regimes in Arctic Alaska: millennial-scale patterns and ecological implications. Ecological Society of America, 21, 8, 3211-3226. ","edition":"8","identifier":{"id":"N/A","type":"online resource","url":"http://www.jstor.org/stable/41417122"},"issue":null,"journal":"Ecological Society of America","pages":"3211-3226","pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Variability of tundra fire regimes in Arctic Alaska: millennial-scale patterns and ecological implications","type":"publication","volume":"21"}],"reconstruction":"N","scienceKeywords":["Arctic"],"site":[{"NOAASiteId":"56310","geo":{"geoType":"Feature","geometry":{"coordinates":["68.031778","-161.374722"],"type":"POINT"},"properties":{"easternmostLongitude":"-161.374722","maxElevationMeters":"160","minElevationMeters":"160","northernmostLatitude":"68.031778","southernmostLatitude":"68.031778","westernmostLongitude":"-161.374722"}},"locationName":"Continent>North America>United States Of America>Alaska","mappable":"Y","paleoData":[{"NOAADataTableId":"27539","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uspo-001.txt","linkText":"uspo-001.txt","urlDescription":"Charcoal, chronology, and age-depth data","variables":[{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age>age at sample end"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth>depth at sample start"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth>depth at sample end"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age>age at sample start"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment>wet sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"milliliter","cvWhat":"physical property>volume"},{"cvAdditionalInfo":null,"cvDataType":"FIRE HISTORY|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count","cvWhat":"biological material>bulk biological material>charcoal"}]},{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/higuera2011-ak-tundrafirehx-lakesedrecords-2008.kmz","linkText":"higuera2011-ak-tundrafirehx-lakesedrecords-2008.kmz","urlDescription":"Google Earth files (.kmz) with location of lakes and recorded fires in Alaska from 1950 to 2007","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/higuera2011-ak-tundrafires-cavm-2010.kmz","linkText":"higuera2011-ak-tundrafires-cavm-2010.kmz","urlDescription":"Google Earth files (.kmz) with location of lakes and recorded fires in Alaska from 1950 to 2010","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-params.csv","linkText":"uspo-001-po07-char-params.csv","urlDescription":"Supplemental Material: CharAnalysis parameters file","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-results.csv","linkText":"uspo-001-po07-char-results.csv","urlDescription":"Supplemental Material: CharAnalysis results file","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>fire history>charcoal sediment"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-data.csv","linkText":"uspo-001-po07-char-data.csv","urlDescription":"Supplemental Material: Charcoal data in a CharAnalysis input file","variables":[]}],"dataTableName":"USPO-001 CHAR","dataTableNotes":"Supplemental file uspo-001-po07-char-data.csv contains the same charcoal data as the Data section of uspo-001.txt.","earliestYear":3002,"earliestYearBP":3002,"earliestYearCE":-1052,"mostRecentYear":-57,"mostRecentYearBP":-57,"mostRecentYearCE":2007,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Poktovik"}],"studyCode":"USPO-001","studyName":"Higuera fire data from Poktovik Lake, Noatak River Valley, Northwestern Alaska - IMPD USPO-001","studyNotes":null,"version":"1.0","xmlId":"15013"}