{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "Provides a reasonable view of the spatial distribution of past large fires but is in no way complete. Due to missing perimeters (please see Use Limitations) this data should be used carefully for statistical analysis and reporting. Please contact the California Department of Forestry and Fire Protection\u2019s Fire and Resource Assessment Program for a detailed explanation of the limitations of the data. The data is updated yearly in the spring with fire perimeters from the previous fire season.", "description": "
Version Information<\/SPAN><\/P> The data is updated annually with fire perimeters from the previous calendar year.<\/SPAN><\/P> <\/P> Firep23_1 was released in May 2024. Two hundred eighty four fires from the 2023 fire season were added to the database (21 from BLM, 102 from CAL FIRE, 72 from Contract Counties, 19 from LRA, 9 from NPS, 57 from USFS and 4 from USFW). The 2020 Cottonwood fire, 2021 Lone Rock and Union fires, as well as the 2022 Lost Lake fire were added. USFW submitted a higher accuracy perimeter to replace the 2022 River perimeter. A duplicate 2020 Erbes fire was removed. Additionally, 48 perimeters were digitized from an historical map included in a publication from Weeks, d. et al. The Utilization of El Dorado County Land. May 1934, Bulletin 572. University of California, Berkeley. There were 2,132 perimeters that received updated attribution, the bulk of which had IRWIN IDs added. The following fires were identified as meeting our collection criteria, but are not included in this version and will hopefully be added in the next update: Big Hill #2 (2023-CAHIA-001020). <\/SPAN><\/P> <\/P> YEAR_ field changed to a short integer type. San Diego CAL FIRE UNIT_ID changed to SDU (the former code MVU is maintained in the UNIT_ID domains). COMPLEX_INCNUM renamed to COMPLEX_ID and is in process of transitioning from local incident number to the complex IRWIN ID. Perimeters managed in a complex in 2023 are added with the complex IRWIN ID. Those previously added will transition to complex IRWIN IDs in a future update.<\/SPAN><\/P> <\/P> If you would like a full briefing on these adjustments, please contact the data steward, Kim Wallin (kimberly.wallin@fire.ca.gov), CAL FIRE FRAP.<\/SPAN><\/P> <\/P> _______________________________________________________________<\/SPAN><\/P> CAL FIRE (including contract counties), USDA Forest Service Region 5, USDI Bureau of Land Management & National Park Service, and other agencies jointly maintain a fire perimeter GIS layer for public and private lands throughout the state. The data covers fires back to 1878. <\/SPAN><\/P> <\/P> Current criteria for data collection are as follows:<\/SPAN><\/P> <\/P> CAL FIRE (including contract counties) submit perimeters ≥10 acres in timber, ≥50 acres in brush, or ≥300 acres in grass, and/or ≥3 damaged/ destroyed residential or commercial structures, and/or caused ≥1 fatality.<\/SPAN><\/P> <\/P> All cooperating agencies submit perimeters ≥10 acres.<\/SPAN><\/P> <\/P> ________________________________________________________________________________<\/SPAN><\/SPAN><\/P> Discrepancies between wildfire perimeter data and CAL FIRE Redbook Large Damaging Fires<\/SPAN><\/SPAN><\/P> Large Damaging fires in California were first defined by the CAL FIRE Redbook, and has changed over time, and differs from the definition initially used to define wildfires required to be submitted for the initial compilation of this digital fire perimeter data. <\/SPAN><\/SPAN><\/P> In contrast, the definition of fires whose perimeter should be collected has changed once in the approximately 30 years the data has been in existence. Below are descriptions of changes in data collection criteria used when compiling these two datasets. <\/SPAN><\/SPAN><\/P> To facilitate comparison, this metadata includes a summary, by year, of fires in the Redbook, that do not appear in this fire perimeter dataset. It is followed by an enumeration of each \u201cRedbook\u201d fire missing from the spatial data. <\/SPAN><\/SPAN><\/P> <\/P> Wildfire Perimeter criteria:<\/SPAN><\/SPAN><\/P> ~1991: 10 acres timber, 30 acres brush, 300 acres grass, damages or destroys three residence or one commercial structure or does $300,000 worth of damage <\/SPAN><\/SPAN><\/P> 2002: 10 acres timber, 50 acres brush, 300 acres grass, damages or destroys three or more structures, or does $300,000 worth of damage<\/SPAN><\/SPAN><\/P> ~2010: 10 acres timber, 30 acres brush, 300 acres grass, damages or destroys three or more structures (doesn\u2019t include out building, sheds, chicken coops, etc.)<\/SPAN><\/P> <\/P> Large and Damaging Redbook Fire data criteria:<\/SPAN><\/P> 1979: Fires of a minimum of 300 acres that burn at least: 30 acres timber or 300 acres brush, or 1500 acres woodland or grass<\/SPAN><\/P> 1981: 1979 criteria plus fires that took ,3000 hours of California Department of Forestry and Fire Protection personnel time to suppress<\/SPAN><\/P> 1992: 1981 criteria plus 1500 acres agricultural products, or destroys three residence or one commercial structure or does $300,000 damage<\/SPAN><\/P> 1993: 1992 criteria but \u201cthree or more structures destroyed\u201d replaces \u201cdestroys three residence or one commercial structure\u201d and the 3,000 hours of California Department of Forestry personnel time to suppress is removed<\/SPAN><\/P> 2006: 300 acres or larger and burned at least: 30 acres of timber, or 300 acres of brush, or 1,500 acres of woodland, or 1,500 acres of grass, or 1,500 acres of agricultural products, or 3 or more structures destroyed, or $300,000 or more dollar damage loss.<\/SPAN><\/P> 2008: 300 acres and larger<\/SPAN><\/P> <\/P> Year<\/SPAN><\/SPAN><\/P><\/TD> # of Missing Large and Damaging Redbook Fires<\/SPAN><\/P><\/TD><\/TR> 1979<\/SPAN><\/SPAN><\/P><\/TD> 22<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1980<\/SPAN><\/SPAN><\/P><\/TD> 13<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1981<\/SPAN><\/SPAN><\/P><\/TD> 15<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1982<\/SPAN><\/SPAN><\/P><\/TD> 6<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1983<\/SPAN><\/SPAN><\/P><\/TD> 3<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1984<\/SPAN><\/SPAN><\/P><\/TD> 20<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1985<\/SPAN><\/SPAN><\/P><\/TD> 52<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1986<\/SPAN><\/SPAN><\/P><\/TD> 12<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1987<\/SPAN><\/SPAN><\/P><\/TD> 56<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1988<\/SPAN><\/SPAN><\/P><\/TD> 23<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1989<\/SPAN><\/SPAN><\/P><\/TD> 8<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1990<\/SPAN><\/SPAN><\/P><\/TD> 9<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1991<\/SPAN><\/SPAN><\/P><\/TD> 2<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1992<\/SPAN><\/SPAN><\/P><\/TD> 16<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1993<\/SPAN><\/SPAN><\/P><\/TD> 17<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1994<\/SPAN><\/SPAN><\/P><\/TD> 22<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1995<\/SPAN><\/SPAN><\/P><\/TD> 9<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1996<\/SPAN><\/SPAN><\/P><\/TD> 15<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1997<\/SPAN><\/SPAN><\/P><\/TD> 9<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1998<\/SPAN><\/SPAN><\/P><\/TD> 10<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 1999<\/SPAN><\/SPAN><\/P><\/TD> 7<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2000<\/SPAN><\/SPAN><\/P><\/TD> 4<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2001<\/SPAN><\/SPAN><\/P><\/TD> 5<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2002<\/SPAN><\/SPAN><\/P><\/TD> 16<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2003<\/SPAN><\/SPAN><\/P><\/TD> 5<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2004<\/SPAN><\/SPAN><\/P><\/TD> 2<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2005<\/SPAN><\/SPAN><\/P><\/TD> 1<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2006<\/SPAN><\/SPAN><\/P><\/TD> 11<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2007<\/SPAN><\/SPAN><\/P><\/TD> 3<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2008<\/SPAN><\/SPAN><\/P><\/TD> 43<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2009<\/SPAN><\/SPAN><\/P><\/TD> 3<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2010<\/SPAN><\/SPAN><\/P><\/TD> 2<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2011<\/SPAN><\/SPAN><\/P><\/TD> 0<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2012<\/SPAN><\/SPAN><\/P><\/TD> 4<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2013<\/SPAN><\/SPAN><\/P><\/TD> 2<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2014<\/SPAN><\/SPAN><\/P><\/TD> 7<\/SPAN><\/SPAN><\/P><\/TD><\/TR> 2015<\/SPAN><\/SPAN><\/P><\/TD> 10<\/SPAN><\/SPAN><\/P><\/TD><\/TR>