noaa-fire-18916 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2023-10-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Tepley fire data from Squaretop Mountain, southwestern Colorado, IMPD USSQM001 2015-06-17 publication doi:10.25921/9ve9-3325 noaa-fire-18916 NCEI DSI 1200_02 NCEI DSI 1200_01 Tepley, A.J. originator Tepley, A.J. author Veblen, T.T. originator Veblen, T.T. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Fire. The data include parameters of fire history|tree ring with a geographic location of Colorado, United States Of America. The time period coverage is from 352 to -62 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other proxies. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. Additional information on the International Multiproxy Database (IMPD) dataset procedures are also available. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-fire.png Paleoclimatology - Fire History PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Fire History theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > fire history|tree ring earth science > paleoclimate > fire history|tree ring earth science > paleoclimate > fire history > fire scar dates theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian QUGA Quercus gambelii Nutt. Gambel oak ABCO Abies concolor (Gordon) Lindl. ex Hildebr. white fir PIPO Pinus ponderosa Douglas ex C. Lawson ponderosa pine western yellow pine PIFL Pinus flexilis E. James limber pine theme What: age; Material: null What: tree demographic and injury and fire event code; Material: wood theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > North America > United States Of America > Colorado > Squaretop Mountain > LATITUDE 37.230414 > LONGITUDE -106.801681 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Tepley, A.J.; Veblen, T.T. (2015-06-17): NOAA/WDS Paleoclimatology - Tepley fire data from Squaretop Mountain, southwestern Colorado, IMPD USSQM001. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/9ve9-3325. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose otherRestrictions None otherRestrictions 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. Spatiotemporal fire dynamics in mixed-conifer and aspen forests in the San Juan Mountains of southwestern Colorado, USA 2015 publication Tepley, Alan, J.;Veblen,Thomas,T.; author Ecological Monographs publisher https://doi.org/10.1890/14-1496.1 HTTPS Web Browser Associated Reference published 2015 Tepley, Alan, J.;Veblen,Thomas,T.;, 2015: Spatiotemporal fire dynamics in mixed-conifer and aspen forests in the San Juan Mountains of southwestern Colorado, USA. Ecological Monographs, , , 10.1890/14-1496.1 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1598 CE to 2012 CE; Date Range: 352 cal yr BP to -62 cal yr BP; -106.801681 -106.801681 37.230414 37.230414 Study Coordinates 37.230414 -106.801681 1598 2012 STUDY NOTES: The fire-scar dataset was collected as part of a study using fire scars and forest stand- and age-structure data to reconstruct the fire history and fire-driven forest dynamics across the gradient from dry to moist mixed-conifer and aspen forests in the San Juan Mountains of southwestern Colorado. The Squaretop Mountain study area is 1,340 ha located on the north side of Rio Blanco, within the Pagosa Ranger District of the San Juan National Forest. Sampling of forest stand- and age-structure data was conducted in 47 contiguous stands across the study area. Fire-scar samples were collected and crosssdated from 48 trees. Ponderosa pine accounts for 87% the samples, limber pine accounts for 9%, and white fir and Gambel oak comprise the remaining 4% samples. Fire scars were collected by searching while hiking to and from each transect, searching the area around each transect, and by making additional trips at the end of the field season to help fill spatial gaps in the dataset. Scars were sampled preferentially from dead trees, but live trees were also sampled to better represent recent fires and to provide a fire record in stands where ponderosa pine was absent and scars were poorly preserved on dead stems of the more rapidly decaying species. The fire-scar data were analyzed along with the age-structure data to reconstruct the extent and severity of each major fire event since the mid-18th century. Lowest elevation: 2421 meters, Highest elevation: 3263 meters. Individual sample information is located at: http://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/ussqm001-individual-sample-information.csv . Alan J. Tepley (Alan.Tepley@Colorado.edu or tepleya@gmail.com). ABSTRACT SUPPLIED BY ORIGINATOR: Mixed-severity fire regimes may be the most extensive yet poorly understood fire regimes of western North America. Understanding their long-term spatiotemporal dynamics is central to debates regarding altered fire regimes and the need for restoration in the context of changing climate and nearly a century of active fire suppression. However, the complexity of fire patterns and forest stand and landscape structures characteristic of mixed-severity regimes poses a substantial challenge to understanding their long-term dynamics. In this study, we develop analysis methods aimed at understanding the fire-driven forest dynamics of mixed-severity systems and apply them in the San Juan Mountains of southwestern Colorado. We sampled fire scars, stand structure, and >4,300 tree ages across two 1,340-ha landscapes (Williams Creek and Squaretop Mountain) that span the environmental gradient of montane mixed-conifer and aspen forests. New approaches were applied to identify pulses of tree recruitment, evaluate climate and fire as potential drivers of synchronous recruitment pulses, and combine fire scar and recruitment data to reconstruct fires. The reconstructions provided detailed fire history for each stand, which in turn was used to develop a fire-severity metric, compare fire frequency and severity by forest type, and develop a simulation procedure to evaluate the degree to which tree regeneration depended on fire by species within each forest type. Twenty fires were reconstructed since 1685 at Williams Creek and 13 fires since 1748 at Squaretop Mountain. Patterns of fire severity varied within each fire and over successive events, including high-severity patches of 100s of ha in both study areas. Dry mixed-conifer forests experienced relatively short fire intervals (mean 21 years) and low fire severity, and regeneration of the main conifer species was largely dependent on open conditions sustained over successive fires. Moist mixed-conifer forests experienced longer fire intervals (mean 32 years) and a 3 broader range of severities, and fire-caused canopy openings were important for initiating pulses of tree recruitment. Most (83%) aspen stands included two or more post-fire cohorts. The methods presented here can be adapted to other mixed-severity systems to better understand their long-term spatial and temporal dynamics and develop restoration priorities. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/9ve9-3325 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/18916 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/fire-history HTTPS Information NCEI Fire Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/ussqm001.txt HTTPS Download /firehistory/firescar/northamerica/ussqm001.txt Fire Scar Data download https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/ussqm001.fhx HTTPS Download /firehistory/firescar/northamerica/ussqm001.fhx Fire Scar Data download https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/ussqm001-individual-tree-information.csv HTTPS Download /firehistory/firescar/northamerica/supplemental/ussqm001-individual-tree-information.csv Fire Scar Data download https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/ussqm001-fire-hist-graph.png HTTPS Download /firehistory/firescar/northamerica/fire-hist-graphs/ussqm001-fire-hist-graph.png Fire Scar Data download https://www.ncei.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/fire-hist-graphs/ussqm001-fire-hist-graph.pdf HTTPS Download /firehistory/firescar/northamerica/fire-hist-graphs/ussqm001-fire-hist-graph.pdf Fire Scar Data download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21