{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "bureauCode": [
    "005:96"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "USFSEnterpriseContent",
    "hasEmail": "mailto:SM.FS.data@usda.gov"
  },
  "description": "<div style='text-align:Left;'><div><div><p style='font-weight:bold;'><a href='https://data.fs.usda.gov/geodata/rastergateway/TCA/Alaska/08_InsectHazard/TCA_AK_Insect_and_Disease_Risk.zip' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>Direct Download (Raster Data Gateway)</span></span></a><span style='text-decoration:underline;'><span> </span></span></p><p><span style='font-weight:bold;'><span>Objective:</span></span><span><span> Identify areas with unhealthy forest conditions as evidenced by a combination of stand and environmental characteristics making them uncharacteristically vulnerable to insect and pathogen outbreaks.</span></span></p><p><span style='font-weight:bold;'><span>Data:</span></span><span><span> The 2018 National Insect and Disease Risk Map (NIDRM) developed by USFS-FHAAST indicates locations where forests are stressed and susceptible to outbreaks of native and non-native insects and diseases. These include forests with overly high stand densities and where soil/site conditions contribute to drought. The basis for assigning risk is the expectation that 25% or more of live basal area (three times the natural background rate of mortality) will die over the next 15 years due to insects and diseases. </span></span><span><span>Because the NIDRM 2018 map is the most recent update, it has been reused each year for TCA Assessments from 2020-present.</span></span></p><p><span style='font-weight:bold;'><span>Format:</span></span><span><span> Raster data are binary: (1) at risk or (0) not at risk</span></span></p><p><span style='font-weight:bold;'><span>Resolution:</span></span><span><span> 240m</span></span></p><p><span style='font-weight:bold;'><span>Source: </span></span><a href='https://www.fs.usda.gov/science-technology/data-tools-products/fhp-mapping-reporting/national-insect-disease-risk-and-hazard-mapping' style='text-decoration:underline;'><span style='text-decoration:underline;'><span>NIDRM 2018</span></span></a></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&amp;list=PLwRbAc4x5n94rLca1CXXuugtRDt_G666M&amp;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": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://data-usfs.hub.arcgis.com/datasets/usfs::terrestrial-condition-assessment-tca-alaska-insect-and-disease-hazard-image-service",
      "format": "Web Page",
      "mediaType": "text/html",
      "title": "ArcGIS Hub Dataset"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://imagery.geoplatform.gov/iipp/rest/services/Ecosystems/USFS_EDW_TCA_AK_InsectAndDiseaseHazard/ImageServer",
      "format": "ArcGIS GeoServices REST API",
      "mediaType": "application/json",
      "title": "ArcGIS GeoService"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://www.arcgis.com/sharing/rest/content/items/390a3ac9113e4c44a4f2fca39cabb974/info/metadata/metadata.xml?format=iso19139",
      "conformsTo": "https://www.isotc211.org/2005/gmi",
      "mediaType": "text/xml",
      "title": "ISO-19139 metadata"
    }
  ],
  "identifier": "https://www.arcgis.com/home/item.html?id=390a3ac9113e4c44a4f2fca39cabb974",
  "issued": "2025-09-18",
  "keyword": [
    "AK",
    "Alaska",
    "Disease",
    "Ecosystems",
    "FHAAST",
    "Geospatial Office",
    "IDS",
    "Insect",
    "NIDRM",
    "TCA",
    "Terrestrial Condition Assessment",
    "USFS"
  ],
  "landingPage": "https://data-usfs.hub.arcgis.com/datasets/usfs::terrestrial-condition-assessment-tca-alaska-insect-and-disease-hazard-image-service",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "modified": "2025-09-23",
  "programCode": [
    "005:059"
  ],
  "progressCode": "onGoing",
  "publisher": {
    "name": "U.S. Forest Service",
    "source": "Forest Service"
  },
  "spatial": "-179.8824,49.6071,-121.0873,71.8283",
  "theme": [
    "geospatial"
  ],
  "title": "Terrestrial Condition Assessment (TCA) Alaska Insect and Disease Hazard (Image Service)"
}