20240529 13580900 1.0 FALSE functional_wui_clip.tif -11545425.437958 -8349495.437958 2801648.609890 4840238.609890 1 002 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.2.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 16 FALSE LZW 1 TIFF TRUE continuous signed integer -9999 20240529 13580900 20260130 4042900 150000000 5000 FGDC dataset 20260130 Raster Dataset Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 functional_wui.tif 2024-04-30T00:00:00 1 -108.810722 -74.241674 41.338825 23.623724 The purpose of the Southern Wildfire Risk Assessment (SWRA) is to provide foundational information about wildfire hazard across all land ownership in the United States Forest Service Southern Region (Region 8). Such information supports fuel management planning decisions, as well as revisions to land and resource management plans. A wildfire risk assessment is a quantitative analysis of potential impacts by wildfire. <DIV STYLE="text-align:Left;"><DIV><DIV>Functional WUI represents a classification of the land near buildings into zones that generally describe wildfire exposure along with risk mitigation activities appropriate for each zone. This dataset helps identify areas where structures and populations are most exposed to wildfire hazards.The Primary Exposure zone identifies where structures are immediately nearby burnable land cover. Mitigation efforts to reduce fire intensity and ember production in this may be warranted. Buildings in this zone would benefit from hardening measures to resist ignition.The Secondary Exposure zone identifies land where structures by lofted embers or by home-to-home spread even though they are not immediately located with vegetation types classified as burnable. Buildings in this zone would benefit from hardening measures to resist ignition, but defensible space is usually not required due to the heavily developed nature of the zone.Sources of Ember Load to Buildings are areas of burnable land cover that produces embers capable of reaching nearby buildings. The Wildfire Transmission Zone is the unpopulated land within about 2.4 km of a group of structures. Fires that originate within or spread to the Wildfire Transmission Zone have an immediate threat of reaching the nearby structures; fuel treatments that slow fire spread in this zone can reduce risk to these structures.The Low-to-No Exposure zone identifies where structures are beyond 1500m from a large (500 ha) contiguous blocks of burnable land cover. These are generally highly developed, urban areas. Flames—even from home-to-home spread—and embers have a relatively low likelihood of reaching structures in this zone, but smoke and evacuations could still impact this area.Water is classified as Non-burnable Water (NB8) in the Surface Fuel Map.</DIV></DIV></DIV> Primary data contact: The Southern Wildfire Risk Assessment (www.SouthernWildfireRisk.com) is sponsored by the Southern Group of State Foresters (https://southernforests.org) and managed by Texas A&M Forest Service. Send an email to SouthWRAP-Support@tfs.tamu.edu for inquiries. This dataset was developed for the Southern Wildfire Risk Assessment by Pyrologix LLC (www.pyrologix.com), a subsidiary of Vibrant Planet (www.vibrantplanet.net). WildEST Wildfire Exposure Simulation Tool SWRA Southern Wildfire Risk Assessment SouthWRAP Southern Wildfire Risk Assessment Portal SGSF Southern Group of State Foresters 2 1 0 -1070355.000000 240885.000000 -1070355.000000 2036925.000000 1839165.000000 2036925.000000 1839165.000000 240885.000000 384405.000000 1138905.000000 96984 30.000000 59868 30.000000 EPSG 7.4.6(10.1.0) Band_1 8.000000 1.000000 16 image False False False False False functional_wui.tif Table 6 This dataset represents a classification of the land near and surrounding buildings into zones that describe the wildfire risk mitigation activities appropriate for each zone. Pyrologix OID OID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Value Value Integer 10 10 0 This dataset represents a classification of the land near and surrounding buildings into zones that describe the wildfire risk mitigation activities appropriate for each zone. Pyrologix 1 Direct Exposure--Burnable land cover within 75 m of a building > 40 m2. Buildings in this zone are exposed to ignition from convective and radiative heat from a wildfire, embers, and adjacent burning structures/outbuildings. Pyrologix 2 Indirect Exposure--Nonburnable land cover within 75 m of a building > 40 m2 and less than 1530 m from a 500-ha contiguous block of wildland fuel. Buildings in this zone are exposed to ignition from embers and/or adjacent burning structures. Pyrologix 3 Little-to-no Exposure--Nonburnable land cover within 75 m of a building > 40 m2 and more than 1530 m from a 500-ha contiguous block of wildland fuel. Buildings in this zone are relatively safe from ember ignition and building-to-building spread. Pyrologix 4 Critical Fireshed--the burnable land cover from which a wildfire can reach a significant number of buildings within a single burning period. Pyrologix 7 Water feature Pyrologix 8 Sources of Ember Load to Buildings--Burnable land cover more than 75 m from a building > 40 m2 that produces embers capable of reaching nearby buildings. Ember production is a function of fire type and intensity; ember travel is a function of wind speed and direction. Ember modeling is based on fire modeling based on gridded historical climatology. Pyrologix Count Count Double 19 0 0 Count of pixels by value. Pyrologix Each record in the table has a unique value in this column.