noaa-fire-17327 Higuera fire data from Poktovik Lake, Noatak River Valley, Northwestern Alaska - IMPD USPO-001 Higuera, P.E.; Chipman, M.L.; Barnes, J.L.; Urban, M.A.; Hu, F.S. Higuera fire data from Poktovik Lake, Noatak River Valley, Northwestern Alaska - IMPD USPO-001 2014-03-03 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/17327 Investigator P.E. Higuera Investigator M.L. Chipman Investigator J.L. Barnes Investigator M.A. Urban Investigator F.S. Hu earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,count,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology depth at sample start,null,null,centimeter,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology depth at sample end,null,null,centimeter,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology age at sample end,null,null,calendar year before present,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology age at sample start,null,null,calendar year before present,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology volume,wet sediment,null,milliliter,null,fire history|paleolimnology,null,null,N,null earth science paleoclimate fire history charcoal sediment geoscientificInformation Arctic 3002 cal yr BP -57 cal yr BP Complete 68.031778 68.031778 -161.374722 -161.374722 160 160 Continent North America United States Of America Alaska Poktovik>LATITUDE 68.031778>LONGITUDE -161.374722 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Philip E. Higuera, Melissa L. Chipman, Jennifer L. Barnes, Michael A. Urban and Feng Sheng Hu 2011 Ecological Society of America 8 21 3211-3226 http://www.jstor.org/stable/41417122

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.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/uspo-001.txt Charcoal, chronology, and age-depth data; uspo-001.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-data.csv Supplemental Material: Charcoal data in a CharAnalysis input file; uspo-001-po07-char-data.csv GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-results.csv Supplemental Material: CharAnalysis results file; uspo-001-po07-char-results.csv GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/higuera2011-ak-tundrafirehx-lakesedrecords-2008.kmz Google Earth files (.kmz) with location of lakes and recorded fires in Alaska from 1950 to 2007; higuera2011-ak-tundrafirehx-lakesedrecords-2008.kmz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/higuera2011-ak-tundrafires-cavm-2010.kmz Google Earth files (.kmz) with location of lakes and recorded fires in Alaska from 1950 to 2010; higuera2011-ak-tundrafires-cavm-2010.kmz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/charcoal/northamerica/supplemental/uspo-001-po07-char-params.csv Supplemental Material: CharAnalysis parameters file; uspo-001-po07-char-params.csv USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11