), CAL FIRE FRAP.<\/span><\/span><\/p><\/p>
________________________________________________________________<\/span><\/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 comprehensive fire perimeter GIS layer for public and private lands throughout the state. The data covers fires back to 1878. <\/span><\/span><\/p><\/p>
Current criteria for data collection are as follows:<\/span><\/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><\/span><\/p><\/p>
All cooperating agencies submit perimeters ≥10 acres.<\/span><\/span><\/p> <\/span><\/span><\/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>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>~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><\/span><\/p>Redbook Fire data criteria<\/span><\/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><\/span><\/p>1981 - 1979 criteria plus fires that took ,3000 hours of California Department of Forestry and Fire Protection personnel time to suppress<\/span><\/span><\/p>1992 - 1981 criteria plus 1500 acres ag products, or destroys three residence or one commercial structure or does $300,000 damage<\/span><\/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><\/span><\/p>2008 - simply 300 acres and larger<\/span><\/span><\/p>--------------------------------<\/span><\/span><\/p>Year and Number of missing Large Damaging Fires for that year<\/span><\/span><\/p>Year<\/span><\/span><\/p><\/td> | # of Missing \u201cRedbook\u201d Fires<\/span><\/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>
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