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Terrestrial Condition Assessment (TCA) Alaska Wildfire Hazard Potential High (Image Service)
Direct Download (Raster Data Gateway)Objective: Identify areas where significant fuel buildup has occurred due to fire suppression, extensive mortality due to natural or anthropogenic causes, or for other reasons.Data: The Wildland Hazard Potential (WHP) represents areas of significant fuel buildup. It is an index that quantifies the relative potential for wildfire that may be difficult to manage and is used as a measure to help prioritize where fuel treatments may be needed. The WHP is a raster geospatial product produced by the USFS Fire Modeling Institute in the Fire, Fuel, and Smoke Program. Higher values have a higher probability of high-intensity fire, with torching, crowning, and other forms of extreme fire behavior. Data used to represent this metric are areas classified as “high” or “very high” risk. A mask for non-burnable areas is applied to focus on ecosystems with vegetation that can be modified through management to reduce hazard.Data Format: Raster data are binary: (1) “high”, or “very high” risk or (0) otherSpatial Resolution: 30m (*data for 2023 assessment is 270m)Source data: The WHP data are part of the Wildfire Risk to Communities suite of data along with several other data products. More information on the data used for the 2024 assessment can be found here. Links for data used in previous year TCA assessments: 2020-2022 , 2023.Additional Resources:Details on Method Changes and Source Data VersionsOverview of the Terrestrial Condition Assessment: TCA Hubsite or Landfire Office Hour PresentationExplore the results of the most recent assessment: TCA Interactive Data ViewerLearn more about the TCA KPI: TCA Dashboard*if you have trouble viewing the Dashboard, please submit a Tableau Viewer Access Request
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
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| description | <div style='text-align:Left;'><div><div><p style='font-weight:bold;'><a href='https://data.fs.usda.gov/geodata/rastergateway/TCA/Alaska/07_WHP/TCA_AK_Wildfire_Hazard_High.zip' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>Direct Download (Raster Data Gateway)</span></span></a></p><p><span style='font-weight:bold;'><span>Objective:</span></span><span><span> Identify areas where significant fuel buildup has occurred due to fire suppression, extensive mortality due to natural or anthropogenic causes, or for other reasons.</span></span></p><p><span style='font-weight:bold;'><span>Data:</span></span><span><span> The Wildland Hazard Potential (WHP) represents areas of significant fuel buildup. It is an index that quantifies the relative potential for wildfire that may be difficult to manage and is used as a measure to help prioritize where fuel treatments may be needed. The WHP is a raster geospatial product produced by the USFS Fire Modeling Institute in the Fire, Fuel, and Smoke Program. Higher values have a higher probability of high-intensity fire, with torching, crowning, and other forms of extreme fire behavior. Data used to represent this metric are areas classified as “high” or “very high” risk. A mask for non-burnable areas is applied to focus on ecosystems with vegetation that can be modified through management to reduce hazard.</span></span></p><p><span style='font-weight:bold;'><span>Data Format:</span></span><span><span> Raster data are binary: (1) “high”, or “very high” risk or (0) other</span></span></p><p><span style='font-weight:bold;'><span>Spatial Resolution:</span></span><span><span> 30m (*data for 2023 assessment is 270m)</span></span></p><p><span style='font-weight:bold;'><span>Source data:</span></span><span><span> </span></span><span><span>The WHP data are part of the Wildfire Risk to Communities suite of data along with several other data products. More information on the data used for the 2024 assessment can be found </span></span><a href='https://doi.org/10.2737/RDS-2020-0016-2' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>here</span></span></a><span><span>. Links for data used in previous year TCA assessments: </span></span><a href='https://www.fs.usda.gov/rds/archive/Catalog/RDS-2020-0016' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>2020-2022</span></span></a><span><span> , </span></span><a href='https://www.fs.usda.gov/rds/archive/catalog/RDS-2015-0047-4' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>2023</span></span></a><span><span>.</span></span></p><p style='font-weight:bold;'><span><span>Additional Resources:</span></span></p><p><span><span>Details on </span></span><a href='https://usfs.box.com/s/79vx1b42xg8u6ivjombxjes36nzfhgml' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>Method Changes and Source Data Versions</span></span></a></p><p><span><span>Overview of the Terrestrial Condition Assessment: </span></span><a href='https://terrestrial-condition-assessment-usfs.hub.arcgis.com/' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>TCA Hubsite</span></span></a><span><span> or </span></span><a href='https://www.youtube.com/watch?v=Kf0P3cAq1rs&list=PLwRbAc4x5n94rLca1CXXuugtRDt_G666M&index=19' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>Landfire Office Hour Presentation</span></span></a></p><p><span><span>Explore the results of the most recent assessment: </span></span><a href='https://apps.fs.usda.gov/gtac-toolsms/tca/' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>TCA Interactive Data Viewer</span></span></a></p><p><span><span>Learn more about the TCA KPI: </span></span><a href='https://cxodashboard.dl.usda.gov/t/NRE/views/EcologicalConditionOutcomes_17531128629260/EcologicalOutcomes' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>TCA Dashboard</span></span></a></p><p><span><span>*if you have trouble viewing the Dashboard, please submit a </span></span><a href='https://usdagcc.sharepoint.com/sites/fs-wo-cdoc/SitePages/Dashboards.aspx' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>Tableau Viewer Access Request</span></span></a></p></div></div></div> |
| distribution |
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"title": "ArcGIS GeoService",
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| identifier | https://www.arcgis.com/home/item.html?id=4ae9abf1033848478186cff9efa70f7d |
| issued | 2025-09-22 |
| keyword |
[
"AK",
"Alaska",
"Geospatial Office",
"Hazard",
"High",
"LANDFIRE",
"TCA",
"Terrestrial Condition Assessment",
"USFS",
"Very High",
"Wildfire"
]
|
| landingPage | https://data-usfs.hub.arcgis.com/datasets/usfs::terrestrial-condition-assessment-tca-alaska-wildfire-hazard-potential-high-image-service |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2025-09-25 |
| programCode |
[
"005:059"
]
|
| progressCode | onGoing |
| publisher |
{
"name": "U.S. Forest Service",
"source": "USDA Forest Service"
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|
| spatial | -179.8824,49.6076,-121.0890,71.8283 |
| theme |
[
"geospatial"
]
|
| title | Terrestrial Condition Assessment (TCA) Alaska Wildfire Hazard Potential High (Image Service) |
