Jon Dewitz 20250929 LF 2001 raster digital data Sioux Falls, SD Earth Resources Observation and Science Center (EROS), U.S. Geological Survey https://doi.org/10.5066/P13KXTGM https://www.landfire.gov Jennifer L. Long Timothy D. Hatten 2023 publication n/a US Geological Survey https://doi.org/10.3133/fs20233044 LANDFIRE’s (LF) 2001 Canopy Bulk Density (CBD) product is defined as the mass of available canopy fuel per unit canopy volume that would burn in a crown fire (Van Wagner 1977; Scott and Reinhardt 2001; Keane et al. 2005). A spatially explicit map of canopy bulk density supplies information used in fire behavior models such as FARSITE (Finney 1998) to determine the spread characteristics of crown fires across the landscape. The CBD mapping process began by deriving field referenced estimates of canopy characteristics through LFRDB plot analysis. Approximately 45,000 plots were acquired throughout the US for estimating LF 2001 CBD. Utilizing these plots, field referenced CBD values were computed for each plot using the canopy fuel estimation software FuelCalc (Reinhardt et al. 2006b). To model the relationship between these stand and canopy characteristics the outputs from the FuelCalc computations were analyzed using a gamma log-link Generalized Linear Model (GLM) (McCullagh and Nelder 1983). The resulting GLM was applied spatially across a mapzone through the use of the LANDFIRE Fuels Change Mapping Tool, or ToFuDelta, to provide a mapped estimate of CBD. These preliminary CBD products were finalized after applying a series of post-processing techniques and logic checks ensuring that the canopy fuel products were relevant in the context of the other fuel layers and fire behavior predictions. The LANDFIRE (LF) 2001 (version 1.0.5) Refresh of the LF National Base Map is the foundational version of LANDFIRE. The initial data released by LANDFIRE, referred to as LANDFIRE (LF) National (version 1.0.0), was completed in the winter of 2010. LF 2001 released in 2011 and incorporated improvements as well as remodeled cover and height layers. LF 2001 also ensured wildland fires through 2001 were represented. When LF 2001 released, it superseded LF National as the revised base map. LF 2001 products are designed to facilitate national and regional level strategic fire and resource management planning and reporting of management activities. The principal purposes of the products include providing: 1) national level landscape scale geospatial products to support fire and fuels management planning and 2) consistent fuels products to support fire planning, analysis, and budgeting to evaluate fire management alternatives. Products are created at a 30-meter raster; however, the applicability of products varies by location and specific use. LF products were designed to support 1) national (all states) strategic planning, 2) regional (single large states or groups of smaller states), and 3) strategic/tactical planning for large sub regional landscapes and Fire Management Units (FMUs) (such as significant portions of states or multiple federal administrative entities). The applicability of LF products to support fire and land management planning on smaller areas will vary by product, location, and specific use. Managers and planners must evaluate LF products according to the scale and requirements specific to their needs. 2001 ground condition Complete None planned -127.9878 -65.2544 51.6497 22.7654 ISO 19115 Topic Category imageryBaseMapsEarthCover biota None raster digital data U.S. Geological Survey (USGS) U.S. Forest Service (USFS) LANDFIRE 2001 LF 2001 Canopy Bulk Density CBD USGS Thesaurus fire hazard preparedness remote sensing image collections geospatial datasets geographic information systems USGS Metadata Identifier USGS:68cc4579d4be021763ac25de Common geographic areas US CONUS United States Conterminous United States Continental U.S. None These data are marked with a Creative Common CC0 1.0 Universal License. These data are in the public domain and do not have any use constraints. LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey Customer Service Representative physical address

47914 252nd Street

Sioux Falls SD 57198 U.S. 605-594-6151 helpdesk@landfire.gov These products were created by the LF team at USGS EROS, Sioux Falls, SD. Refer to the contact information throughout this metadata to contact the LF team. None in place Unclassified If there is ever doubt, contact the appropriate resource staff who has stewardship responsibility and the GIS Coordinator. Microsoft Windows 10; ESRI ArcGIS Suite C. E. Van Wagner 19770301 publication Canadian Journal of Forest Research vol. 7, issue 1 n/a Canadian Science Publishing ppg. 23-34 https://doi.org/10.1139/x77-004 Mark A. Finney 1998 publication Rocky Mountain Research Station USFS Research Paper RMRS-RP-4 Revised https://www.frames.gov/documents/behaveplus/publications/Finney_1998_RMRS-RP-4.pdf Joe H. Scott Elizabeth D. Reinhardt 2001 publication Ft. Collins, CO U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station https://doi.org/10.2737/RMRS-RP-29 Matthew C. Reeves Kevin C. Ryan Matthew G. Rollins Thomas G. Thompson 2009 publication International Journal of Wildland Fire vol. 18, issue 3 n/a CSIRO Publishing ppg. 250 https://doi.org/10.1071/WF08086 Peter McCullagh 198406 publication European Journal of Operational Research vol. 16, issue 3 n/a Elsevier BV ppg. 285-292 https://doi.org/10.1016/0377-2217(84)90282-0 Products were tested to ensure that each attribute is represented consistently across all data sets. Attributes were not validated against in person observations. 0.0 Assessment not applied The products were pixel "truth" tested for consistency of land or water characteristics across all products. Products were formally tested to ensure that valid data was produced for all pixels. Each product was then validated and tested for duplicates, omissions, and errors. US Geological Survey (USGS) 1996 raster digital data https://pubs.usgs.gov/publication/fs20253001 https://www.mrlc.gov/data https://www.mrlc.gov/viewer/ https://www.sciencebase.gov/catalog/item/655ceb8ad34ee4b6e05cc51a Digital and/or Hardcopy 2021 ground condition NLCD LANDFIRE always utilizes the latest products from NLCD, read more about each version of LANDFIRE and its inputs at https://landfire.gov/ US Department of Agriculture (USDA) 1961 application/service https://www.nass.usda.gov/ Digital and/or Hardcopy Unknown ground condition NASS CDL Read more about each version of LANDFIRE and its inputs at https://landfire.gov/ US Geological Survey (USGS) 1982 raster digital data Fact Sheet 2022-3084 Reston, VA USGS https://doi.org/10.3133/fs20223084 https://www.usgs.gov/landsat-missions/landsat-collection-2-level-3-dynamic-surface-water-extent-science-product https://www.usgs.gov/landsat-missions Digital and/or Hardcopy Unknown ground condition DSWE The Landsat Collection 2 (C2) Level-3 Dynamic Surface Water Extent (DSWE) product provides raster layers that represent surface water inundation per-pixel in Landsat data. US Forest Service (USFS) 1928 application/service Check https://www.landfire.gov/reference for more information. https://research.fs.usda.gov/programs/fia Digital and/or Hardcopy Unknown observed FIA Read more about each version of LANDFIRE and its inputs at https://landfire.gov/ LF 2001 ensures wildland fires from 1999 to 2001 are represented. Other improvements include resolving inconsistencies along international borders and updating certain aspects of key classes or areas, including: 1) riparian and wetlands areas, 2) labelling agricultural and urban vegetation class types as burnable, and 3) adjusting the extent of barren and water land cover types. Reference resources utilized in LANDFIRE includes but is not limited to: Forest Inventory and Analysis (FIA) program plot data, Landsat Dynamic Surface Water Extent (DSWE), the National Land Cover Database (NLCD), and National Agricultural Statistics Service (NASS). To read more about LF reference resources go to https://landfire.gov/reference. Information about LF product testing is available by request or via the website at https://www.landfire.gov. 20070131 Raster Grid Cell 97283 154208 1 Albers Conical Equal Area 29.5 45.5 -96.0 23.0 0.0 0.0 row and column 30.0 30.0 meters North_American_Datum_1983 GRS 1980 6378137.0 298.2572221010042 CBD LF 2001 CBD attributes spreadsheet. LF 2001 Value Forest Canopy Bulk Density (CBD) is the mass of available canopy fuel per unit canopy volume that would burn in a crown fire and values range from 0 to 45. LF 2001 -9999 No Data LF 2001 0 45 CBD_kgm3_x_100 CBD is kilograms per meter cubed multiplied by 100. LF 2001 -9999 NoData LF 2001 0 Non-Forested LF 2001 45 CBD greater than 40 LF 2001 LANDFIRE (LF) 2001 Forest Canopy Bulk Density (CBD). An Attribute Table is included with each product download as a .csv and embedded in the metadata. The Attribute Data Dictionary (ADD) can be found at https://www.landfire.gov/. LF 2001 Forest Canopy Bulk Density U.S. Geological Survey GS ScienceBase mailing

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Downloadable Data This product is reproduced from geospatial information prepared by the U.S. Department of the Interior (DOI) USGS EROS. By removing the contents of this package or taking receipt of these files via electronic file transfer methods, you understand that the data stored on this media can be updated at any time. Represented features may not be in an accurate geographic location. USGS EROS makes no expressed or implied warranty, including warranty of merchantability and fitness, with respect to the character, function, or capabilities of the data or their appropriateness for any user's purposes. USGS EROS reserves the right to correct, update, modify, or replace this geospatial information without notification. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. ARCG 20070131 LF 2001 https://doi.org/10.5066/P13KXTGM None ESRI ArcMap Suite and/or Arc/Info software, and supporting operating systems. 20250929 LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey Customer Service Representative physical

47914 252nd Street

Sioux Falls SD 57198 U.S. 605-594-6151 helpdesk@landfire.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None None Unclassified None