{ "currentVersion": 11.1, "cimVersion": "3.1.0", "id": 69, "name": "Fire_perimeters", "type": "Feature Layer", "description": "
Version Information:<\/SPAN><\/SPAN><\/P> <\/P> The data is updated yearly with fire perimeters from the previous fire season.<\/SPAN><\/P> <\/P> Fire20_1 was released in April, 2021. Five hundred wildfires from the 2020 fire season were added to the database (12 from NPS, 277 from CAL FIRE, 76 from USFS, 37 from BLM, 3 other). Two previous fires were modified, the 1994 Steckel fire was deleted and the two 1979 Hernadez were merged into one fire.<\/SPAN><\/P> ________________________________________________________________<\/SPAN><\/P> <\/P> CAL FIRE (including c<\/SPAN><\/SPAN>ontract counties)<\/SPAN>, USDA Forest Service Region 5, USDI Bureau of Land Managment & 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><\/P> ________________________________________________________________________________<\/SPAN><\/SPAN><\/P> <\/P> Discrepancies between wildfire perimeter data and Redbook Large Damaging Fires<\/SPAN><\/SPAN><\/P> <\/P> Large Damaging fires in California were first defined by the 1979 Redbook. The definition of \u201cLarge Damaging\u201d fires used by CAL FIRE has changed over time and differs from the definition initially used when compiling 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 data sets. <\/SPAN><\/SPAN><\/P> To facilitate comparison, this meta data 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 $300,000 damage <\/SPAN><\/SPAN><\/P> ~2010: 1991 criteria but the monetary criteria, the differentiation of structure type and the use of damages were all removed<\/SPAN><\/SPAN><\/P> Redbook Fire data criteria<\/SPAN><\/SPAN><\/P> 1979 - Fires of a minimum of 300 acres that burn atleast : 30 acres timber, 300 acres brush, 1500 acres woodland or grass<\/SPAN><\/SPAN><\/P> 1981 - 1979 criteria plus fires that took 3000 hrs of CDF personnel time to suppress<\/SPAN><\/SPAN><\/P> 1992 - 1981 criteria plus 1500 acres ag products, or destroys three residence or one commercial structure or $300,000 damage<\/SPAN><\/SPAN><\/P> 1993 - 1992 criteria but three or more structures destroyed replaces destroys three residence or one commercial structure and the 3000 hrs of CDF 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> 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>