Look for complete geospatial metadata in this layer's associated xml document available from the download link * Metric Name: Ignition Cause * Tier: 1 * Data Vintage: 1992 - 2020 * Unit Of Measure: Count * Represent element and pillar: No * Type and distribution of data: Zero-inflated, right-skewed distribution representing continuous values. Raw data values range from 0 to 105. * Translation: Where did **** wildfires occur in Southern California? * Translation method and outcome: Raw data values translated to range from +1 to -1 representing more favorable to less favorable conditions, respectively. **** The proposition of more favorable is based on the objective of lower damage potential (negative linear slope). More favorable (translated to +1) set at 1.0, less favorable (translated to -1) set at > 105\. Alternative approaches could be to set -1 at the top value, but that would result in a more favorable interpretation of ignition cause. Figure . Histogram and scoring of wildfire occurrence, human-caused, 1992-2020 in Southern California Figure . Histogram of translated wildfire occurrence, human-caused, 1992-2020 in Southern California Figure . Maps displaying raw metric and translated metric wildfire occurrence, human-caused, 1992-2020 in Southern California Figure . Maps displaying raw metric and translated metric wildfire occurrence, natural-caused, 1992-2020 in Southern California * Metric Definition and Relevance: The original point layer (WildfireOccurrence_CA_1992_2020.shp ) contains a spatial database of wildfires that occurred in the United States from 1992 to 2020. It is the fifth update of a publication originally generated to support the national Fire Program Analysis (FPA) system. The wildfire records were acquired from the reporting systems of federal, state, and local fire organizations. The following core data elements were required for records to be included in this data publication: discovery date, final fire size, and a point location at least as precise as a Public Land Survey System (PLSS) section (1-square mile grid). The data were transformed to conform, when possible, to the data standards of the National Wildfire Coordinating Group (NWCG), including an updated wildfire-cause standard (approved August 2020). Basic error-checking was performed and redundant records were identified and removed, to the degree possible. The resulting product, referred to as the Fire Program Analysis fire-occurrence database (FPA FOD), includes 2.3 million geo-referenced wildfire records, representing a total of 180 million acres burned during the 29-year period. Identifiers necessary to link the point-based, final-fire-reporting information to published large-fire-perimeter and operational-situation-reporting datasets are included. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. * Credits: Rocky Mountain Research Station, U.S. Forest Service