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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. |
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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. |
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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). |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>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.</SPAN></P><P><SPAN>The </SPAN><SPAN STYLE="font-weight:bold;">Primary Exposure </SPAN><SPAN>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.</SPAN></P><P><SPAN>The </SPAN><SPAN STYLE="font-weight:bold;">Secondary Exposure </SPAN><SPAN>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.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Sources of Ember Load to Buildings</SPAN><SPAN> are areas of burnable land cover that produces embers capable of reaching nearby buildings. </SPAN></P><P><SPAN>The </SPAN><SPAN STYLE="font-weight:bold;">Wildfire Transmission Zone </SPAN><SPAN>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.</SPAN></P><P><SPAN>The </SPAN><SPAN STYLE="font-weight:bold;">Low-to-No Exposure </SPAN><SPAN>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.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Water </SPAN><SPAN>is classified as Non-burnable Water (NB8) in the Surface Fuel Map.</SPAN></P></DIV></DIV></DIV> |
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functional_wui.tif |
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["WildEST","Wildfire Exposure Simulation Tool","SWRA","Southern Wildfire Risk Assessment","SouthWRAP","Southern Wildfire Risk Assessment Portal","SGSF","Southern Group of State Foresters"] |
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en-US |
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150000000 |
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