Fire Return Interval Departure (Frid) - Time Since Last Fire

Time Since Last Fire (TSLF), from the Fire Return Interval Departure (FRID) map, provides information (in years) to indicate the length of time since an area last burned.

Data and Resources

Additional Info

Field Value
Last Updated January 24, 2025, 06:54 (UTC)
Created January 24, 2025, 06:54 (UTC)
category /Fire Dynamics/Functional Fire/Fire Return Interval Departure (FRID)
collection_name California Landscape Metrics
creation_method Time Since Last Fire (TSLF), from the Fire Return Interval Departure (FRID) map, provides information (in years) to indicate the length of time since an area last burned. Specifically, the number of years elapsed between the most recent fire recorded in the fire perimeters database and the version year of the FRID map being used. To illustrate, if the version year of the FRID map is 2019, and the area in question last burned in 1995, TSLF will be 24 (2019 minus 1995).
data_units Years
data_vintage 2022. Includes disturbances through the end of 2022.
encoding utf8
file_name FRID_TimeSinceLastFire_2022_202401_T1_v5
format GeoTiff
harvest_object_id 5506561a-2d5b-4a04-8850-d9e1e4b97023
harvest_source_id a2637971-af12-457f-ae4a-831d2202a539
harvest_source_title WIFIRE Commons
maximum_value 114.0
metric_definition_and_relevance Time Since Last Fire (TSLF), from the Fire Return Interval Departure (FRID) map, provides information (in years) to indicate the length of time since an area last burned.
minimum_value 0.0
spatial {"type": "Polygon", "coordinates": [[[-124.5090833859125, 32.4242698701859], [-113.49380570277376, 32.4242698701859], [-113.49380570277376, 42.1119747450123], [-124.5090833859125, 42.1119747450123], [-124.5090833859125, 32.4242698701859]]]}
tier 1