Metadata Updated: November 12, 2020

LANDFIRE (LF) disturbance products are developed to provide temporal and spatial information related to landscape change and subsequent updates to LF vegetation, fuel, and related data. FDist (Fuel Disturbance) development involved a comprehensive review of fuel and disturbance attribute assignments, use/not use scenarios, and the development of a disturbance hierarchy. Starting with LF Remap, a varied approach was adopted to more accurately represent vegetation within disturbed areas for fuels. Three adjustments were implemented prior to FDist development: disturbance attribute assignment updates, use/not use logic updates, and development of a disturbance hierarchy for multiple disturbance entries. The FDist crosswalk was updated to better reflect vegetation conditions resulting from combinations of disturbance type, severity, and Time Since Disturbance (TSD). (Codes mimicked those in previous versions of LF FDist. Using 3-digit codes for disturbance type, with the addition of new 600 series codes to represent unknown mechanical treatments. Most of these disturbances are mechanical remove and were treated as such.) The Use/Not Use Disturbance logic was developed to check for logical inconsistencies between disturbance types and the underlying vegetation. (i.e. If a fire disturbance falls within a body of water). If a discrepancy was found, the disturbance was flagged and removed from the FDist product. For LF Remap, additional disturbance logic checks were added and refined to include: lifeform, shrub-mastication, and insect & disease to ensure logical inconsistencies would not persist between disturbance type and vegetation lifeform or type: Lifeform Use/Not Use - limits disturbances to logical vegetation lifeforms; Shrub Mastication Use/Not Use - limits mastication in shrubs to commonly masticated existing vegetation types; and Insect & Disease Use/Not Use - limits insect & disease disturbances to existing vegetation types affected by bug infestations (conifer species) or disease mortality. Prior to LF Remap, fire related disturbances took precedence over other disturbances when multiple entries occur during the 10-year disturbance timeframe. This disturbance hierarchy was kept with 2 exceptions: 1) Clear-cuts take priority over other disturbance types, unless followed by a high severity fire. If so, high severity fire takes priority and is assigned and 2) If a high severity fire is followed by high severity mechanical remove, high severity mechanical remove is assigned (i.e. salvage logging scenario). FDist is 2019 capable, meaning the disturbance TSDs are updated to the effective year 2019 based on the year the disturbance occurred, making the product ready for use in year 2019. Disturbances that are older than 10 years in 2019 follow the existing LF protocol and are removed from FDist and treated as non-disturbed. Disturbances on the landscape have been identified through 2016 using the best available information (see Annual Disturbance). All non-disturbed fuel continues to be based on LF Remap fuel vegetation.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date February 1, 2007
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) February 7, 2019 (publication)
Frequency Of Update continual

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date February 1, 2007
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) February 7, 2019 (publication)
Responsible Party Wildland Fire Science, Earth Resources Observation and Science Center, U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: Although LANDFIRE products are delivered as 30-meter pixels, they should not be used at the individual pixel level or on small groups of pixels. LANDFIRE products were designed to support 1) national (all states) strategic planning, 2) regional (single large states or groups of smaller states), and 3) strategic/tactical planning for large sub-regional landscapes and Fire Management Units (FMUs) (such as significant portions of states or multiple federal administrative entities). The applicability of LANDFIRE products to support fire and land management planning on smaller areas will vary by product, location, and specific use. Further investigation by local and regional experts should be conducted to inform decisions regarding local applicability. However, it is the responsibility of the local user, using LANDFIRE metadata and local knowledge, to determine if and/or how LANDFIRE can be used for particular areas of interest. LANDFIRE products are not intended to replace local products, but rather serve as a back-up by providing wall-to-wall cross-boundary products. It is the responsibility of the user to be familiar with the value, assumptions, and limitations of LANDFIRE products. Managers and planners must evaluate LANDFIRE data according to the scale and requirements specific to their needs., Access Constraints: None
Bbox East Long -65.25444546636928
Bbox North Lat 51.64968101623376
Bbox South Lat 22.765446426860603
Bbox West Long -127.98775263969655
Coupled Resource
Frequency Of Update continual
Licence This product is reproduced from geospatial information prepared by the U.S. Department of Agriculture, Forest Service and USGS EROS. By removing the contents of this package or taking receipt of these files via electronic file transfer methods, you understand that the data stored on this media is in draft condition. Represented features may not be in an accurate geographic location. The Forest Service and USGS EROS make no expressed or implied warranty, including warranty of merchantability and fitness, with respect to the character, function, or capabilities of the data or their appropriateness for any user's purposes. The Forest Service and USGS EROS reserve the right to correct, update, modify, or replace this geospatial information without notification.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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