LANDFIRE Data Products

Data Products ›› Disturbance 1999-2008, Fuel Disturbance, Vegetation Disturbance

LANDFIRE disturbance data 1999-2008 provide temporal and spatial information related to landscape change to model vegetation transitions and inform subsequent updates to LANDFIRE vegetation, fuel, and other data. Disturbance data were developed using Landsat satellite imagery, local agency derived disturbance polygons, and other ancillary data. These data include attributes that are associated with disturbance year, type, and severity. Vegetation and fuel disturbance are composites of the disturbance grids with the latest disturbance taking precedence. These data are useful in change detection analysis.

Attribute Table

Attribute tables for LANDFIRE grid data are available on the Data Distribution Site. Generally, these attribute tables provide information pertaining to the grid class value along with class descriptions or labels for these values. Attribute tables, such as the Existing Vegetation Type, provide additional attribute fields that can provide crosswalk links to other classification themes. Color mapping fields are also provided within the attribute tables, providing a standardized, consistent LANDFIRE color mapping schema for these data layers. The attribute files are in comma separated value (csv) format that can be easily converted to other formats to meet user needs.

The attribute tables are provided as a convenience as calculations with grid data will automatically drop attributes. For example, if a grid is clipped, the rowid, value, and count are the only attributes retained. Attribute fields can be reattached to the grid using a join attribute function having the "value" attribute as the link.