The Wildland-Urban Interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States from 1990-2020. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a geodatabase and include information such as housing densities for 1990, 2000, 2010, and 2020; wildland vegetation percentages for 1992, 2001, 2011, and 2019; as well as WUI classes in 1990, 2000, 2010, and 2020.This WUI feature class is separate from the WUI datasets maintained by individual forest unites, and it is not the authoritative source data of WUI for forest units. This dataset shows change over time in the WUI data up to 2020.Metadata and Downloads

This dataset was developed for the 2015 Assessment of Forest and Rangelands. It is derived from several data sources, including housing density (input_lsn_HousingDensity12_2), Fire Hazard Severity Zones (FHSZ_Assessment11_1), Unimproved Parcels (input_UnimprovedParcels16_1), and Vegetation Cover (input_FVEG15_2). The current dataset is appropriate for displaying the overall pattern of WUI development at the county level, and comparing counties in terms of development patterns. Until the dataset is refined through a field review process, it is not suited for WUI designations for individual houses or neighborhoods. Housing Density Classes used in the WUI definitions: 1 - Less than one house per 20 acres 2 - One house per 20 acres to one house per 5 acres 3 - More than one house per 5 acres to 1 house per acre 4 - More than 1 house per acreWildland Urban Interface is dense housing adjacent to vegetation that can burn in a wildfire and must meet these criteria: •Housing density class 2, 3 or 4 •In moderate, high, or very high Fire Hazard Severity Zone •Not dominated by wildland vegetation (i.e., lifeform not herbaceous, hardwood, conifer or shrub) •Spatially contiguous groups of 30m cells that are10 acres and largerWildland Urban Intermix is housing development interspersed in an area dominated by wildland vegetation subject to wildfire and must meet these criteria: •Not Interface •Housing density class 2 •Housing density class 3, 4 dominated by wildland vegetation •In Moderate, High or Very High Fire Hazard Severity Zone •Improved parcels only •Spatially contiguous groups of 30m cells 25 acres and largerWildfire Influence Zone is wildfire susceptible vegetation up to 1.5 miles from Wildland Urban Interface or Wildland Urban Intermix and must meet these criteria: •Wildland vegetation up to 1.5 miles from Interface or Intermix

A map with various base layers to be used as a template for creating thematic maps for the Napa County CWPP online maps. Most layers are from Napa County's online gis data catalog but some layers were derived from public data sources such as Wikipedia and others.This map highlights WUI areas as defined by CAL FIRE in their WUI 12_3 layer. Description below:This dataset adds housing density class (DEN4) and wildfire hazard (FHSZ) attributes to WUI12_2 - FRAP’s preliminary result in an effort to capture Wildland Urban Interface (WUI) for the 2015 Assessment. The current dataset is appropriate for displaying the overall pattern of WUI development at the county level, and comparing counties in terms of development patterns. Until the dataset is refined through a field review process, it is not suited for WUI designations for individual houses or neighborhoods.

Three WUI classes are mapped: 1) Wildland Urban Interface – dense housing adjacent to vegetation that can burn in a wildfire, 2) Wildland Urban Intermix - housing development interspersed in an area dominated by wildland vegetation subject to wildfire, and 3) Wildfire Influence Zone - wildfire susceptible vegetation up to 1.5 miles from Wildland Urban Interface or Wildland Urban Intermix.

Housing Density (DEN4) 1) Less than one house per 20 acres 2) One house per 20 acres to one house per 5 acres 3) More than one house per 5 acres to 1 house per acre 4) More than 1 house per acre

Fire Hazard Severity Zone (HAZ_NUM: 1=Moderate, 2=High, 3=Very High) Source: State Resposibility Areas (fhszs06_3), Local Responsibility Areas (fhszl11_1)

State legislation passed in 1992 directed he California Department of Forestry and Fire Protection (Cal Fire) to work with local governments to delineate Fire Hazard Severity Zones throughout California. Cal Fire updated and adopted new Fire Hazard Severity Zone maps for each county in 2007. The agency used various types of data to map out these zones, which are ranked either Very High, High, or Moderate Fire Hazard Severity. All of these adopted zones apply to "State Responsibility Areas," which include land under the jurisdiction of state agencies and counties. Soon after, Cal Fire recommended to "Local Responsibility Area" jurisdictions (cities, towns, etc.) maps of Very High Fire Hazard Severity Zones using the same methods. Areas that are designated as Very High or High Fire Hazard Severity Zones are the most likely to experience wildfire, and structures in these zones can be potentially impacted.We have created this online mapping tool so that you can search for your address to find out if your home or business is located in one of these zones. You will also find more information about the steps you should take if your structure is located in a Fire Hazard Severity Zone.

Intensifying wildfires and human settlement expansion have placed more people and infrastructure at the wildland–urban interface (WUI) areas under risk. Wildfire management and policy response are needed to protect ecosystems and residential communities; however, maps containing spatially explicit information on the distribution of WUI areas are limited to certain countries or local regions, and therefore global WUI patterns and associated wildfire exposure risk remain unclear. Here, we generated the global WUI data layers for 2020 baseline and 1985-2020 time series by incorporating fine-resolution housing and vegetation mapping. We estimated the total global WUI area to be 6.62 million km2. Time-series analysis revealed that global WUI areas experienced a substantial increase of 12.56% between 1985 and 2020. By overlapping 2001-2020 wildfire burned area maps and fine-resolution population dataset, our analysis revealed that globally, 7.07% (12.54%) of WUI areas housing 4.47 million (10.11 million) people are within a 2400-m (4800-m) buffer zone of wildfire threat. Regionally, we found that the United States, Brazil, China, India, and Australia account for the majority of WUI areas, but African countries experience higher wildfire risk. Our quantification of global WUI spatiotemporal patterns and the associated wildfire risk could support improvement of wildfire management.

Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 2010. The wildland-urban interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States for 2010. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a feature class and include information such as housing and population densities for 2010; wildland vegetation percentages for 2011; as well as WUI class in 2010. This WUI feature class is separate from the WUI datasets maintained by individual forest units, and it is not the authoritative source data of WUI for forest units. This map service shows the WUI data for 2010 only.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService For complete information, please visit https://data.gov.

Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 2000. The wildland-urban interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States for 2000. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a feature class and include information such as housing and population densities for 2000; wildland vegetation percentages for 2001; as well as WUI class in 2000. This WUI feature class is separate from the WUI datasets maintained by individual forest units, and it is not the authoritative source data of WUI for forest units. This map service shows the WUI data for 2000 only.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService For complete information, please visit https://data.gov.

OverviewORS 477.490 requires Oregon Sate University (OSU) and the Oregon Department of Forestry (ODF) to develop a statewide wildland-urban interface (WUI) map that will be used in conjunction with the statewide wildfire hazard map (ORS 477.490) by the Oregon State Fire Marshal to determine on which properties defensible space standards apply (ORS 476.392) and by the Building Codes Division to determine to which structures home hardening building codes apply (ORS 455.612).Rules directing development of the WUI are listed in OAR-629-044-1011 and 629-044-1016. A comprehensive description of datasets and geospatial processing is available at https://hazardmap.forestry.oregonstate.edu/understand-map. The official statewide WUI map is available on the Oregon Wildfire Risk Explorer at https://tools.oregonexplorer.info/viewer/wildfire.Following is an overview of the data and methods used develop the statewide WUI map.Wildland-Urban InterfaceCreating a statewide map of the WUI involved two general steps. First, we determined which parts of Oregon met the minimum building density requirements to be classified as WUI. Second, for those areas that met the minimum building density threshold, we evaluated the amount and proximity of wildland or vegetative fuels. Following is a summary of geospatial tasks used to create the WUI.Develop a potential WUI map of all areas that meet the minimum density of structures and other human development - According to OAR 629-044-1011, the boundary of Oregon’s WUI is defined in part as areas with a minimum building density of one building per 40 acres, the same threshold defined in the federal register (Executive Order 13728, 2016), and any area within an Urban Growth Boundary (UGB) regardless of the building density. Step One characterizes all the locations in Oregon that could be considered for inclusion in the WUI on building density and UGB extent alone. The result of Step One was a map of potential WUI which was then further refined into final WUI map based on fuels density and proximity in Step Two.Compile statewide tax lots.Map all eligible structures and other human development.Simplify structure dataset to no more than one structure per tax lotCalculate structure density and identify all areas with greater than one structure per 40 acresAdd urban growth boundaries to all the areas that meet the density requirements from the previous step.Classify WUI based on amount and proximity of fuel. The WUI is also defined by the density and proximity of wildland and vegetative fuels (“fuels”). By including density and proximity of fuels in the definition of the WUI, the urban core is excluded, and the focus is placed on those areas with sufficient building density and sufficient fuels to facilitate a WUI conflagration. Consistent with national standards, we further classified the WUI into three general classes to inform effective risk management strategies. The following describes how we refined the potential WUI output from step one into the fina

This Wildland-Urban Interface (WUI) hazard feature service is a subset of a statewide dataset produced by the Fire and Resource Assessment Program (FRAP) of the California Department of Forestry and Fire Protection. The Metropolitan Transportation Commission clipped the source data to the San Francisco Bay Region and removed the non-WUI hazard areas from the data. The full dataset can be downloaded from the FRAP GIS Data page.Wildland Urban Interface, Wildland Urban Intermix, and Wildfire Influence Zones developed by FRAP for the FRAP 2015 Assessment. This dataset adds housing density class (DEN4) and wildfire hazard (FHSZ) attributes to WUI12_2 - FRAP’s preliminary result in an effort to capture WUI for the 2015 Assessment.This dataset is appropriate for displaying the overall pattern of WUI development at the county level, and comparing counties in terms of development patterns. Until the dataset is refined through a field review process, it is not suited for WUI designations for individual houses or neighborhoods.This dataset is derived from several data sources, including housing density (input_lsn_HousingDensity12_2), Fire Hazard Severity Zones (FHSZ_Assessment11_1), Unimproved Parcels (input_UnimprovedParcels16_1) , and Vegetation Cover (input_FVEG15_2).Spatially accurate representation of the nexus between development and wildfire is underpinned in this dataset by the use of Landscan 2012. Assessment dataset input_lsn_HousingDensity12_2 has four housing density classes: Specifically, remote sensed night time light emissions (Conus Night) data is converted to points, summarized into projected 90m grid cells using methods guided by the West Wide Wildfire Risk Assessment Final Report - Addendum I Detailed Technical Methods, March 31, 2013. The data is then resampled to 30m for consistency with other Assessment data products.Housing Density Classes (DEN4) used in the WUI definitions:Class Definition1 - Less than one house per 20 acres2 - One house per 20 acres to one house per 5 acres3 - More than one house per 5 acres to 1 house per acre4 - More than 1 house per acreInterface (dense housing adjacent to vegetation that can burn in a wildfire):DEN4 Class 2, 3 or 4In Moderate, High, or Very High Fire Hazard Severity ZoneNot dominated by wildland vegetation (i.e., Lifeform not Herbaceous, Hardwood, Conifer or Shrub according to dataset input_FVEG15_2 )Spatially contiguous groups of 30m cells that are 10 acres and largerIntermix (housing development interspersed in an area dominated by wildland vegetation subject to wildfire):Not InterfaceDEN4 Class 2DEN4 Class 3, 4 dominated by wildland vegetationIn Moderate, High or Very High Fire Hazard Severity ZoneImproved Parcels onlySpatially contiguous groups of 30m cells 25 acres and largerWildfire Influence Zone (wildfire susceptible vegetation):Wildland vegetation up to 1.5 miles from Interface or IntermixFire Hazard Severity Zones:PRC 4201 - 4204 and Govt. Code 51175-89 direct the California Department of Forestry and Fire Protection (CAL FIRE) to map areas of significant fire hazards based on fuels, terrain, weather, and other relevant factors. These zones, referred to as Fire Hazard Severity Zones (FHSZ), define the application of various mitigation strategies to reduce risk associated with wildland fires. CAL FIRE is remapping Fire Hazard Severity Zones (FHSZ) for State Responsibility Areas (SRA) and Very High Fire Hazard Severity Zones (VHFHSZ) recommendations in Local Responsibility Areas (LRA) to provide updated map zones, based on new data, science, and technology. Offical "Maps of Fire Hazard Severity Zones in the State Responsibility Area of California" are provided as required by Public Resources Code 4201-4204 and entitled in the California Code of Regulation, Title 14, Section 1280 Fire Hazard Severity Zones, and as adopted by CAL FIRE on November 7, 2007. Maps of the adopted zones in SRA are available at the State Fire Marshal's Fire Hazard Severity Zones Maps page. More information about the project can be found at the Wildfire Hazard Real Estate Disclosure page.-----------------------------------------The Association of Bay Area Governments' Resilience Program makes this data available, along with other hazard data, in an effort to provide a one-stop-shop for local governments to access data for hazard/resilience planning. More information on the program and its work can be accessed from the Resilience Program information page.

The wildland-urban interface (WUI) is the area where urban development occurs in close proximity to wildland vegetation. We generated WUI maps for the conterminous U.S. using building point locations (Carlson et al. 2022), offering higher spatial resolution compared to previously developed WUI maps based on U.S. Census Bureau housing density data (Radeloff et al., 2017). Building point locations were obtained from a Microsoft product released in 2018, which classified building footprints based on high-resolution satellite imagery. Maps were also based on wildland vegetation mapped by the 2016 National Land Cover Dataset (Yang et al., 2018). The mapping algorithm utilized definitions of the WUI from the U.S. Federal Register (USDA & USDI, 2001) and Radeloff et al. (2005). According to these definitions, two classes of WUI were identified: 1) the intermix, where there is at least 50% vegetation cover surrounding buildings, and 2) the interface, where buildings are within 2.4 km ...

This dataset provides global wildland-urban interface (WUI) maps at a spatial resolution of 30 meters for the years 2000, 2010, and 2020. The WUI is defined as areas where the 200-meter buffers of urban areas (characterized by artificial surfaces) intersect with the 400-meter buffers of wildland areas, including forests, shrublands, and grasslands. These maps are produced based on land cover classification results from the GlobeLand30 datasets.

Projection Information:
The projection information aligns with GlobeLand30 standards:

• Projection: UTM (Universal Transverse Mercator) for latitudes from S85 to N85, using a 6-degree zone system without zone numbers.
• Polar Azimuthal Projection: Applicable for latitudes from S85 to N90 and N85 to N90, with the projection surface intersecting at the South and North Poles.

Naming Convention:
The file naming convention is as follows:

Where:

• L = Latitude code (N for the Northern Hemisphere, S for the Southern Hemisphere)
• HH = Number of UTM zone
• VV = Starting latitude of the tile (each tile crosses 5° latitude)
• YYYY = Year mapped
• lc = Land cover abbreviation
• 030 = Spatial resolution of 30 meters

Example File Name:
For instance, the file named WUI_n15_45_2020lc030.tif can be interpreted as follows:

• WUI: Wildland-Urban Interface dataset
• n: Northern latitude
• 15: UTM zone 15
• 45: Starting latitude of 45 degrees
• 2020: Product year of 2020
• lc: Land cover classification
• 030: Spatial resolution of 30 meters

The wildland-urban interface (WUI) is where buildings and wildland vegetation meet or intermingle. It is where human-environmental conflicts and risks are concentrated, including the loss of houses and lives to wildfire, habitat loss and fragmentation, and the spread of zoonotic diseases. However, a global analysis of the WUI has been lacking.

This dataset features a global, 10 m resolution map of the wildland-urban interface that was developed in a recent study by the authors of this dataset (see corresponding publication).

Temporal extent

The data contains data representative for ca. 2020.

Data format and units

The data are organized in tiles of 100 km x 100 km and follow the EQUI7 tiling grid and projection system. The images are compressed GeoTiff files (.tif). There is a mosaic in GDAL Virtual format (.vrt), which can readily be opened in most Geographic Information Systems. Please consider the generation of image pyramids before using *.vrt files.

The raster dataset contains Wildland-urban interface (WUI) data (one layer), 10 m spatial resolution, 8 discrete classes:

1 - Forest/Shrubland/Wetland-dominated Intermix WU

2 - Forest/Shrubland/Wetland-dominated Interface WUI

3 - Grassland-dominated Intermix WUI

4 - Grassland -dominated Interface WUI

5 - Non-WUI: Forest/Shrub/Wetland-dominated

6 - Non-WUI: Grassland-dominated

7 - Non-WUI: Urban

8 - Non-WUI: Other

In addition, the data contain tabular data on WUI area, population and biomass in the WUI, as well as wildfire area and people affected by wildfire in the WUI per world region, country, subnational administrative unit and biome.

The data also contain the key algorithm for WUI mapping (also accessible here: https://github.com/franzschug/global_wildland_urban_interface).

Further information

For further information, please see the publication or contact Franz Schug (fschug@wisc.edu). Visit the website of SILVIS lab, University of Wisconsin-Madison (http://silvis.forest.wisc.edu/globalwui) to learn more about the Wildland-Urban Interface.

The data can be interactively visualizes in a web viewer here.

Corresponding publication

Schug, Franz*; Bar-Massada, Avi; Carlson, Amanda R.; Cox, Heather; Hawbaker, Todd J.; Helmers, David; Hostert, Patrick; Kaim, Dominik; Kasraee, Neda K.; Martinuzzi, Sebastián; Mockrin, Miranda H.; Pfoch, Kira A.; Radeloff, Volker C. The global wildland-urban interface, DOI: 10.1038/s41586-023-06320-0

Funding

This research was funded by the NASA Land Cover and Land Use Change Program under agreement 80NSSC21K0310.

Community Wildfire Protection Plans, or CWPPs, are a crucial planning document to prepare communities for wildfire. Creating and regularly updating a CWPP allows a community to: Influence how land is managed on federal and state lands for wildfire risk reduction, Identify and map wildfire hazards, Identify effective wildfire risk mitigation strategies, and Be eligible for certain nationally competitive grants.CWPPs and Wildland Urban Interface (WUI) GIS data were gathered from counties that completed a CWPP. WUI parcels were mapped using Montana Cadastral data and the various WUI categories or levels determined by individual counties. Some counties did not have a WUI mapped by their CWPP. DNRC worked with those counties individually to designate WUI parcels.CWPPs portray WUI boundaries using a variety of methods. Some counties consider nearly their entire county as some type of WUI, while others only recognize small buffers around certain communities. Other counties followed the 2003 Healthy Forest Restoration Act (HFRA) WUI boundaries quite closely, while others did not. Thirty-one counties designated only one category of WUI, while the remaining twenty-five counties designated multiple WUI levels; some of their categories included:Varying designations of areas of ‘Very High’, ‘High’, ’Moderate’ and ’Low' Risk or Hazard WUI (Lewis and Clark, Daniels, Sheridan, Roosevelt, Broadwater, Madison)Modified versions of the University of Wisconsin Silvis WUI Interface and Intermix WUI levels and Rural WUI areas (Blaine, Hill, and Phillips)Probability rankings of WUI occurrence (5-95%) based on structure density (Glacier, Pondera, Liberty, Judith Basin, Fergus, Petroleum, and Yellowstone)Four 1-mile wide WUI buffer zones (Deer Lodge, Granite, Powell, Jefferson and Butte-Silver Bow)Points (mostly structures or hazardous areas) designated by counties at ‘Extreme Hazard’, ‘High Hazard’ and/or ‘Moderate Hazard’ levels that were applied to parcel polygons (Musselshell, Treasure and Valley).For the thirty-one counties with just one WUI level, if the county WUI boundary intersects a parcel, the entire parcel was designated WUI. DNRC did not set a level at which parcels with a very small WUI percentage were excluded. Counties can re-adjust the boundaries to exclude parcels when they update their CWPP.For most counties with multiple WUI levels, WUI parcel levels were determined by the location of the parcel centroid. The exceptions include counties that used point data as their WUI and counties with no CWPP that DNRC assisted in WUI development. WUI parcel delineation was completed from January 2010 through December 2011. Since the cadastral data that the WUI parcels are based upon is updated regularly, the WUI parcels are out-of-date. There is no current plan to update WUI parcels.To view a completed CWPP, please visit: https://dnrc.mt.gov/Forestry/Community-Local-Government/community-wildfire-protection-plans

Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 1990. The wildland-urban interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States for 1990. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a feature class and include information such as housing and population densities for 1990; wildland vegetation percentages for 1991; as well as WUI class in 1990. This WUI feature class is separate from the WUI datasets maintained by individual forest units, and it is not the authoritative source data of WUI for forest units. This map service shows the WUI data for 1990 only.

The Wildland Urban Interface Zone is the first 150 feet from areas identified as continuous undeveloped areas greater than 10 acres, or wildlands. This zone is where homes, roads, and other development meet or intermix with the wildlands. The layer is derived from planimetric data. Structures within 150 ft of this zone are considered "at risk" from wildland urban interface fire activity.

This dataset represents Wildland Urban Interface (WUI) zones within Monterey County. A WUI is the potential treatment zone in which projects could be conducted to reduce wildland fire threats to people. Data derived from the "Wildland Urban Interface (WUI) Fire Threat" GIS layer (GRID raster format) available from Cal Fire FRAP. The "WUI_area" polygon dataset is a modified version of the Wildland Urban Interface Fire Threat GIS layer prepared by Monterey County RMA, 2016.

The Wildland-Urban Interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States from 1990-2020. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a geodatabase and include information such as housing densities for 1990, 2000, 2010, and 2020; wildland vegetation percentages for 1992, 2001, 2011, and 2019; as well as WUI classes in 1990, 2000, 2010, and 2020.To provide a spatially detailed national assessment of the wildland-urban interface (WUI) and WUI change between 1990 and 2020 across the coterminous U.S. to support wildland fire research, policy and management, and inquiries into the effects of housing growth on the environment.This data publication, published on 08/09/2023 is a fourth edition. The first edition (https://doi.org/10.2737/RDS-2015-0012) contained data representing the 2010 WUI of the conterminous United States. The second edition (https://doi.org/10.2737/RDS-2015-0012-2) contained data that represented the 1990-2010 WUI. The third edition (https://doi.org/10.2737/RDS-2015-0012-3) contains data that represent the 1990-2020 WUI.

This fourth edition uses an improved PLA housing density dataset to classify WUI from 1990-2020. This involved updating the public land adjustment (PLA) process (step 1) by correcting topological errors and removing erroneous sliver polygons generated during the PLA process.

On 09/16/2024, minor metadata updates were made, which included updating URLs for associated articles.

Information about WUI can also be found here: http://silvis.forest.wisc.edu/data/wui-change as well as https://www.fs.usda.gov/research/nrs/projects/wuigrowth.

Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 2000. The wildland-urban interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States for 2000. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a feature class and include information such as housing and population densities for 2000; wildland vegetation percentages for 2001; as well as WUI class in 2000. This WUI feature class is separate from the WUI datasets maintained by individual forest units, and it is not the authoritative source data of WUI for forest units. This map service shows the WUI data for 2000 only.

Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 2010. The wildland-urban interface (WUI) is the area where houses meet or intermingle with undeveloped wildland vegetation. This makes the WUI a focal area for human-environment conflicts such as wildland fires, habitat fragmentation, invasive species, and biodiversity decline. Using geographic information systems (GIS), we integrated U.S. Census and USGS National Land Cover Data, to map the Federal Register definition of WUI (Federal Register 66:751, 2001) for the conterminous United States for 2010. These data are useful within a GIS for mapping and analysis at national, state, and local levels. Data are available as a feature class and include information such as housing and population densities for 2010; wildland vegetation percentages for 2011; as well as WUI class in 2010. This WUI feature class is separate from the WUI datasets maintained by individual forest units, and it is not the authoritative source data of WUI for forest units. This map service shows the WUI data for 2010 only.

This web map displays Wildland Urban Interface (WUI) zones and Fire Hazard Severity Zones in State Responsible Areas within Monterey County.