LANDFIRE, Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
20220601
LANDFIRE 2020 Existing Vegetation Type (EVT) CONUS
LF 2020
raster digital data
Sioux Falls, SD
Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
https://www.landfire.gov
LANDFIRE's (LF) 2020 update (LF 2020) Existing Vegetation Type (EVT) represents the current distribution of the terrestrial ecological systems classification developed by NatureServe for the western hemisphere. In this context, a terrestrial ecological system is defined as a group of plant community types that tend to co-occur within landscapes with similar ecological processes, substrates, and/or environmental gradients. EVT also includes ruderal or semi-natural vegetation types within the U.S. National Vegetation Classification [(NVC) http://usnvc.org/]. See the EVT product page (https://www.landfire.gov/evt.php) for more information about ecological systems and NVC. EVT is mapped using decision tree models, field data, Landsat imagery, topography, and biophysical gradient data. Decision tree models are developed separately for tree, shrub, and herbaceous lifeforms which are then used to produce a lifeform specific EVT product. These models are generated for each Environmental Protection Agency (EPA) Level III Ecoregion (https://www.epa.gov/eco-research/ecoregions). Riparian, alpine, sparse, and other site-specific EVTs are constrained by predetermined masks. Urban and developed areas are derived from the National Land Cover Database (NLCD), and the Microsoft Building Footprint dataset, whereas agricultural lands originate from the Cropland Data Layer (CDL) and the California Statewide Crop Mapping layer. Burnable developed classes are identified from building footprint dataset thresholds. LF 2020 retains circa 2016 EVT labels except where shifts in urban, recently disturbed, agriculture, and developed ruderal classes occurred for 2020. EVT is no longer synchronized in ST-SIM outputs for disturbed areas in LF 2020. LF uses EVT as an input for LF 2020 Fuel Vegetation Type (FVT).
LANDFIRE 2020 Update (LF 2020) is designed to produce vegetation, disturbance, and fuels products that inform wildland fire and ecological decision systems. LF 2020 is an update to the new base map, LF 2016 Remap (LF Remap), which improved past methodologies and processes to incorporate current satellite imagery, contemporary data sources, and the latest software and hardware technologies. LF 2020 utilizes the most recent and relevant geospatial data available to offer products that reflect current conditions.
LF 2020 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.
Beginning in the LF 2020 update all CONUS products are created with a 90km buffer into both Canada and Mexico, and LF 2020 AK products feature a 90km buffer into Canada.
2020
ground condition
Annually
-127.9878
-65.2544
51.6497
22.7654
ISO 19115 Topic Category
imageryBaseMapsEarthCover
biota
USGS Thesaurus
fires
hazard preparedness
remote sensing
image collections
geospatial datasets
geographic information systems
None
raster digital data
Existing Vegetation Type
EVT
U.S. Geological Survey (USGS)
U.S. Forest Service (USFS)
LANDFIRE 2020
LF 2020
Common geographic areas
US
CONUS
United States
Continental U.S.
Conterminous United States
None
None
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
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 LF Help Desk at helpdesk@landfire.gov
Microsoft Windows 10; ESRI ArcCatalog 10.7.1
USGS Advanced Research Computing (ARC)
2021
USGS Denali Supercomputer: U.S. Geological Survey
publication
https://www.usgs.gov/advanced-research-computing/usgs-denali-supercomputer
https://www.usgs.gov/advanced-research-computing
LF 2020 EVT for natural vegetation is the same as LF 2016 Remap EVT except in recently disturbed and developed ruderal classes. Modeled vegetation from 2016 replaced these classes, if the pixels were outside of new burnable developed classes or urban. For LF Remap EVT the Auto-Keys process was re-designed. Auto-Keys are used to determine Existing Vegetation Type classification based on plot data in the LF Reference Database (LFRDB). A validation of the EVT product is conducted by comparing the EVT product for a pixel with the Auto-Key EVT assignment for a sample plot contained in that pixel. These agreement assessments have been developed for each LF CONUS GeoArea. To read more about EVT agreement assessments go to https://www.landfire.gov/evt.php
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.
Beginning with the new base map of LF 2016 Remap (LF Remap), products were created using recent advances in image compositing, tiling algorithms, and faster computing hardware to ensure that LF products remained relevant. LF Remap leveraged the Landsat archive, lidar data, and user contributed field plot data compiled into the LF Reference Database (LFRDB), to create new vegetation products. Reference resources included, but were not limited to, Forest Inventory and Analysis (FIA) program plot data (USFS https://fia.fs.fed.us/), Landsat Dynamic Surface Water Extent [(DSWE) USGS https://www.usgs.gov/landsat-missions], the National Land Cover Database [(NLCD) USGS https://www.mrlc.gov/data], and National Agricultural Statistics Service [(NASS) USDA - https://www.nass.usda.gov/].
For LF 2020 reference resources included, but were not limited to, NASS agricultural class layers, NLCD developed and roads classes, TIGER road polylines [https://tigerweb.geo.census.gov/tigerwebmain/TIGERweb_apps.html], 3D Elevation Program Digital Elevation Model [(3DEP DEM) USGS https://www.usgs.gov/3d-elevation-program], Monitoring Trends in Burn Severity [(MTBS) USGS https://mtbs.gov/], Burned Area Reflectance Classification [(BARC) USFS and USGS] and Rapid Assessment of Vegetation Condition after Wildfire [(RAVG) https://burnseverity.cr.usgs.gov/ravg/] and North American Land Change Monitoring System [(NALCMS) https://www.mrlc.gov/data/north-american-land-change-monitoring-system] for the 90km buffer area.
To read more about LF reference resources go to https://www.landfire.gov/reference.php. Information about LF 2020 product testing is available by request or via the website at https://www.landfire.gov.
20220601
Raster
Grid Cell
20729
24853
Albers Conical Equal Area
29.5
45.5
-96.0
23.0
0
0
row and column
30
30
meters
North American Datum of 1983 (NAD 83)
Geodetic Reference System 1980
6378137.000000
298.257222
EVT
LF2020 EVT attributes spreadsheet.
LF 2020
VALUE
Code that identifies the vegetation and land cover types.
LF 2020
-9999
NoData
LF 2020
4401
9994
EVT_NAME
Existing Vegetation Type name.
LF 2020
See the ADD for additional information.
LFRDB
LF Reference Database (LFRDB) code.
LF 2020
NA
NoData
LF 2020
4401
9994
EVT_FUEL
EVT fuel code.
LF 2020
NA
NoData
LF 2020
11
4623
EVT_Fuel_N
EVT fuel name.
LF 2020
NA
NoData
LF 2020
See the ADD for additional information.
EVT_LFEVT lifeform.LF 2020
NA
NoData
LF 2020
Shrub
Shrub lifeform.
LF 2020
Tree
Tree lifeform.
LF 2020
Sparse
Sparse.
LF 2020
Herb
Herbaceous lifeform.
LF 2020
Water
Water.
LF 2020
Barren
Barren.
LF 2020
Developed
Developed.
LF 2020
Snow-Ice
Snow/Ice.
LF 2020
Agriculture
Agriculture.
LF 2020
EVT_PHYSEVT physiognomy.LF 2020
NA
NoData
LF 2020
Shrubland
Shrubland.
LF 2020
Riparian
Riparian.
LF 2020
Sparsely Vegetated
Sparse.
LF 2020
Grassland
Grassland.
LF 2020
Conifer
Conifer.
LF 2020
Hardwood
Hardwood.
LF 2020
Conifer-Hardwood
Conifer- Hardwood
LF 2020
Open Water
Water
LF 2020
Quarries-Strip Mines-Gravel Pits-Well and Wind Pads
Strip mines, gravel pits, well/wind pads.
LF 2020
Developed-Low Intensity
Low intensity.
LF 2020
Developed-Medium Intensity
Medium intensity.
LF 2020
Developed-High Intensity
HIgh intensity.
LF 2020
Developed-Roads
Roads
LF 2020
Developed-Open Space
Open space.
LF 2020
Snow-Ice
Snow.
LF 2020
Agricultural
Agricultural.
LF 2020
Developed
Developed.
LF 2020
Exotic Herbaceous
Exotic herbaceous.
LF 2020
Exotic Tree-Shrub
Exotic tree shrub.
LF 2020
EVT_GP
EVT group code.
LF 2020
NA
NoData
LF 2020
11
829
EVT_GP_N
EVT group name.
LF 2020
NA
NoData
LF 2020
See ADD for additional information.
SAF_SRM
Crosswalk to Society of American Foresters and Society of Range Management cover types.
LF 2020
NA
NoData
LF 2020
Crosswalk to Society of American Foresters and Society of Range Management cover types.
EVT_ORDEREVT physiognomic order from FGDC classification.LF 2020
NA
NoData
LF 2020
Shrub-dominated
Shrub dominated.
LF 2020
No dominant lifeform
No dominant lifeform.
LF 2020
Herbaceous / Nonvascular-dominated
Herbaceous dominated.
LF 2020
Tree-dominated
Tree dominated.
LF 2020
No Dominant Life Form
No dominant life form.
LF 2020
Non-vegetated
Non-vegetated.
LF 2020
EVT_CLASSEVT physiognomic class from FGDC classification.LF 2020
NA
NoData
LF 2020
Dwarf Shrubland
Dward shrub.
LF 2020
Shrubland
Shrubland.
LF 2020
Sparsely Vegetated
Sparsely vegetated.
LF 2020
Herbaceous - forbland
Herbaceous forbs.
LF 2020
Closed tree canopy
Closed tree canopy.
LF 2020
Herbaceous - Shrub Steppe
Herbaceous shrub steppe.
LF 2020
Open Tree Canopy
Open tree canopy.
LF 2020
Herbaceous - Grassland
Herbaceous grassland.
LF 2020
Nonvascular
Non-vascular.
LF 2020
Sparse Tree Canopy
Sparse tree canopy.
LF 2020
Non-vegetated
Non-vegetated.
LF 2020
No Dominant Lifeform
None.
LF 2020
EVT_SBCLS
EVT physiognomic subclass from FGDC classification.
LF 2020
See ADD for additional information.
R
Red color value/255
LF 2020
0
255
G
Green color value/255
LF 2020
0
255
B
Blue color value/255
LF 2020
0
255
RED
Red color value.
LF 2020
0.0
1.0
GREEN
Green color value.
LF 2020
0.0
1.0
BLUE
Blue color value.
LF 2020
0.0
1.0
LANDFIRE (LF) 2020 Existing Vegetation Type (EVT) CONUS. 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/.
https://www.landfire.gov/evt.php
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
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
20220601
LF 2020
https://www.landfire.gov
none
20220601
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 Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
None
Unclassified
None