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 The LANDFIRE (LF) 2001 Environmental Site Potential (ESP) product represents the vegetation that could be supported at a given site based on the biophysical environment. It is important to note that ESP is an abstract concept and represents neither current nor historical vegetation. Map units are named according to NatureServe's Ecological Systems classification, which is a nationally consistent set of mid-scale ecological units (Comer et al 2003). Usage of these classification units to describe environmental site potential, however, differs from the original intent of Ecological Systems as units of existing vegetation. As used in LF, map unit names represent the natural plant communities that would become established at late or climax stages of successional development in the absence of disturbance. They reflect the current climate and physical environment, as well as the competitive potential of native plant species. The ESP product is similar in concept to other approaches to classifying potential vegetation in the western United States, including habitat types (for example, Daubenmire 1968 and Pfister and others 1977) and plant associations (for example, Henderson and others 1989). To create the ESP product, LF assigned field plots to one of the ESP map unit classes. Assignments were based on presence and abundance of indicator plant species recorded on the plots, and on the ecological amplitude and competitive potential of these species. Plot locations were then intersected with a series of 30m spatially explicit gradient layers. Most of the gradient layers used in the predictive modeling of ESP are derived using the WX-BGC simulation model (Keane and Holsinger, in preparation; Keane et al 2002). WX-BGC simulations are based largely on spatially extrapolated weather data from DAYMET (Thornton et al 1997; Thornton and Running 1999) and on soils data in STATSGO (NRCS 1994). Additional indirect gradient layers, such as elevation, slope, and indices of topographic position, were also used. LF used data from plot locations to develop predictive classification tree models, using See5 data mining software (Quinlan 1993; Rulequest Research 1997), for each LF map zone. These decision trees were applied spatially to predict the ESP for every pixel across the landscape. Finally, ESP pixel values were, in some cases, modified based on a comparison with the LF Existing Vegetation Type (EVT) product created with the use of 30m Landsat ETM satellite imagery. LF made modifications only in non-vegetated areas (such as water, rock, snow, or ice) and where information in the EVT layer clearly enabled a better depiction of the ESP concept. 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. Four attributes are provided in which LANDFIRE EVTs have been cross-walked to existing vegetation classifications. These attributes are provided to help characterize and describe the LANDFIRE EVTs nationally in terms of these existing vegetation classifications but should not be used to create coarser, thematically simplified maps as they encompass a large amount of local variation. The Order, Class, and Subclass attributes are based on the Federal Geographic Data Committee - Vegetation Subcommittee's vegetation classification standard and pertain to upper physiognomic levels of the National Vegetation Classification System hierarchy. Order describes the dominant life forms (tree, shrub, dwarf shrub, herbaceous, or nonvascular) within the Vegetated Division of the hierarchy. Class describes the level in the classification hierarchy defined by the relative percent canopy cover of the tree, shrub, dwarf shrub, herb, and nonvascular life form in the uppermost strata during the peak of the growing season. Subclass describes the predominant leaf phenology of classes defined by tree, shrub, or dwarf shrub stratum (evergreen, deciduous, mixed evergreen-deciduous), and the average vegetation height for the herbaceous stratum (tall, medium, short). In addition to physiognomy, a cross-walk based more on the floristic composition of each EVT is provided using the combined classifications SAF and SRM for forested and rangeland types, respectively. LANDFIRE EVTs that do not apply to these pre-existing categories are cross-walked to coarser, LANDFIRE "cover classes". 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) LF 2001 LANDFIRE 2001 Environmental Site Potential ESP USGS Thesaurus fire hazard preparedness remote sensing image collections geospatial datasets geographic information systems USGS Metadata Identifier USGS:68cc66e1d4be021763ac649f 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 R. Daubenmire Jean B. Daubenmire 1968 publication Daubenmire, R.; Daubenmire, Jean B. 1968. The habitat types. In: Daubenmire, R.; Daubenmire, Jean B. Forest vegetation of eastern Washington and northern Idaho. Tech. Bull. 60. Pullman, WA: Washington State University, Washington Agricultural Experiment Station. p. 7-48. https://research.fs.usda.gov/treesearch/49024 Robert D. Pfister Bernard L. Kovalchik Stephen F. Arno Richard C. Presby 1977 publication Pfister, Robert D.; Kovalchik, Bernard L.; Arno, Stephen F.; Presby, Richard C. 1977. Forest habitat types of Montana. Gen. Tech. Rep. INT-GTR-34. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest & Range Experiment Station. 174 p. https://research.fs.usda.gov/treesearch/41077 Jan A. Henderson David Hallett Peter Robin D. Lesher David C. Shaw 1989 publication https://www.researchgate.net/publication/44046008_Forested_Plant_Associations_of_the_Olympic_National_Forest Robert E Keane Geoffrey J Cary Ian D Davies Michael D Flannigan Robert H Gardner Sandra Lavorel James M Lenihan Chao Li T.Scott Rupp 200411 publication Ecological Modelling vol. 179, issue 1 n/a Elsevier BV ppg. 3-27 https://doi.org/10.1016/j.ecolmodel.2004.03.015 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 ESP LF 2001 ESP attributes spreadsheet. LF 2001 Value Numeric identifier for unique combinations of map zones. LF 2001 -9999 No Data LF 2001 11 1828 ESP_Name ESP name, map units are named according to NatureServe's Ecological Systems classification, which is a nationally consistent set of mid-scale ecological units. LF 2001 Ecological Systems name R Red color value/255 LF 2001 0 255 G Green color value/255 LF 2001 0 255 B Blue color value/255 LF 2001 0 255 Red Red color value. LF 2001 0.0 1.0 Green Green color value. LF 2001 0.0 1.0 Blue Blue color value. LF 2001 0.0 1.0 LANDFIRE (LF) 2001 Environmental Site Potential (ESP). 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 Environmental Site Potential 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