20251223 08511600 1.0 TRUE None Forest Health Protection (FHP): SM.FS.FHP@usda.gov None 2150A Centre Avenue Ste. 331 Fort Collins CO 80526 US None None 20251216 ArcGIS Metadata 1.0 Forest Health Protection (FHP): SM.FS.FHP@usda.gov None Forest Health Protection (FHP): SM.FS.FHP@usda.gov None 2150A Centre Avenue Ste. 331 Fort Collins CO 80526 US None None Access within the Forest Service at TODO: set to file path GeoTiff 10.5.1 Risk from forest insects and diseases, 2024 - 2038 (Coterminous US) 2025 Forest Health Assessment and Applied Sciences Team (FHAAST) raster digital data The composite risk dataset is the central product of the 2024 National Insect and Disease Risk Map (NIDRM). Risk is defined as: the expectation that 25 percent or more of the standing live basal area of trees greater than 1 inch in diameter will die over a 15-year (2024 to 2038) time frame due to insects and diseases. The 2024 NIDRM represents the integration of 172 individual insect and disease hazard models, all constructed within a common GIS-based, multi-criteria framework that can account for regional variations in forest health. The production of the 2024 Risk Map has been a highly collaborative process led by the USDA Forest Service (Forest Service) Forest Health Assessment and Applied Sciences Team (FHAAST) and Forest Health Protection (FHP). The primary goal of the 2024 National Insect and Disease Risk Map (NIDRM) is to provide policy makers, USDA officials, and federal and state land managers with a strategic assessment of the risk of tree mortality due to major insects and diseases. Risk, or more precisely, “hazard”, is defined as: the expectation that, without remediation, 25 percent or more of the standing live basal area of trees greater than 1 inch in diameter will die over a 15-year (2024 to 2038) time frame due to insects and diseases. The 2024 NIDRM is as a strategic, broad-scale planning tool that can be used for administrative activities and work planning Forest Health Protection (FHP): SM.FS.FHP@usda.gov None Forest Health Protection (FHP): SM.FS.FHP@usda.gov None 2150A Centre Avenue Ste. 331 Fort Collins CO 80526 US None None NIDRM Global Forest Change Risk of Mortality Model Insect Disease Entomologist Pathologist National Forest Forest Health Monitoring FHM Forest Inventory and Analysis FIA Geographic Information Systems GIS National Insect and Disease Risk Map Risk Map USDA Forest Service USFS Multi-Criteria Framework Susceptibility Vulnerability Spatial Resolution Agent Host Pest Basal Area BA Forest Health ArcGIS Alabama Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming West Region Interior West Region Pacific Northwest Region Pacific Southwest Region Rocky Mountain Region Intermountain Region Northern Region Southwestern Region Region 1 R1 Region 2 R2 Region 3 R3 Region 4 R4 Region 5 R5 Region 6 R6 Southern Region Northeastern Area Region 8 R8 Region 9 R9 NA CONUS NIDRM Global Forest Change Risk of Mortality Model Insect Disease Entomologist Pathologist National Forest Forest Health Monitoring FHM Forest Inventory and Analysis FIA Geographic Information Systems GIS National Insect and Disease Risk Map Risk Map USDA Forest Service USFS Multi-Criteria Framework Susceptibility Vulnerability Spatial Resolution Agent Host Pest Basal Area BA Forest Health ArcGIS Alabama Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming West Region Interior West Region Pacific Northwest Region Pacific Southwest Region Rocky Mountain Region Intermountain Region Northern Region Southwestern Region Region 1 R1 Region 2 R2 Region 3 R3 Region 4 R4 Region 5 R5 Region 6 R6 Southern Region Northeastern Area Region 8 R8 Region 9 R9 NA CONUS The USDA Forest Service manages these data for planning purposes, not necessarily for on-the-ground implementation. It is the sole responsibility of the user to determine whether or not the data are suitable for the intended purpose. It is strongly recommended that these data are directly acquired from an authoritative USDA Forest Service data repository and not indirectly through other sources which may have changed the data in some way. Although these geospatial data have been processed successfully on a computer system at the USDA Forest Service, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Esri ArcGIS 13.3.4.52636 true -128.146914 -65.086930 51.759317 22.714584 Users must exercise caution regarding the spatial and content accuracy of these data due to the inexact nature of modeling, calculating, and or surfacing layers like this. The information contained in these geospatial data is dynamic and may change over time. The geospatial data are not better than the original sources from which they were derived. The user is responsible to use the geospatial data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The USDA Forest Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these geospatial data. The data is in the form of an GeoTiff and has been snapped to a standard snap grid used at FHAAST (...\SDL\Data\Snap_Grids\FHTET1_NIDRM-Compatible_Alaska_Mapextents.doc, ...\SDL\Data\Snap_Grids\FHTET1_NIDRM-Compatible_CONUS_Mapextents.doc, ...\SDL\Data\Snap_Grids\FHTET1_NIDRM-Compatible_Hawaii_Mapextents.doc, ...\SDL\Data\Snap_Grids\FHTET1_NIDRM-Compatible_PuertoRico_Mapextents.doc). Complete for the Coterminous US Users must exercise caution regarding the spatial and content accuracy of these data due to the inexact nature of modeling, calculating, and or surfacing layers like this. Any products (hardcopy or electronic) utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, (s)he is obligated to describe the types of modifications they have performed on the hardcopy map. The user specifically agrees not to misrepresent these data sets, nor to imply that changes made were approved by the USDA Forest Service. Users must exercise caution regarding the spatial and content accuracy of these data due to the inexact nature of modeling, calculating, and or surfacing layers like this. Any products (hardcopy or electronic) utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, (s)he is obligated to describe the types of modifications they have performed on the hardcopy map. The user specifically agrees not to misrepresent these data sets, nor to imply that changes made were approved by the USDA Forest Service. Identify, rank, and weight GIS layers that act as factors and constraints (i.e., criteria) to determine the susceptibility and vulnerability of hosts or host groups to each risk agent. Sum the basal area (BA) losses from all damage agents (i.e., each of the tbaloss_<pest code> rasters). Identify areas that are at risk of encountering a 25% or greater loss of total BA in the next 15 years. ___ Note: When more than one agent was responsible for mortality within a single host tree species, the final host-specific BA mortality rate was derived by summing the individual agent mortality rates, and truncating the sum such that it did not exceed 100%. Forest Health Protection. 2025. National Insect and Disease Composite Risk Map, 2024. Digital Data. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Forest Health Assessment and Applied Sciences Team. 2 12225 19350 Risk_NIDRM24_v4_corrected_postRegnlAdjst_Renamed_forestMask_addMetadata.tif.vat OID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Value OID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Value Count Descr Values 'At Risk' in NIDRM 2024 represent the expectation that, without remediation, 25 percent or more of the standing live basal area of trees greater than 1 inch in diameter will die over a 15-year (2024 to 2038) time frame due to insects and diseases. Loss estimates assume no remediation. Value = 0 Treed areas not modeled at risk. Value = 1 Treed areas modeled at risk through 2038.