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"nullable": true, "domain": null, "name": "SHAPE_Area", "alias": "SHAPE_Area", "type": "esriFieldTypeDouble" } ], "dateFieldsTimeReference": null, "preferredTimeReference": null, "useStandardizedQueries": true, "sourceSpatialReference": { "falseM": -100000, "xyTolerance": 0.001, "mUnits": 10000, "zUnits": 10000, "latestWkid": 3857, "zTolerance": 0.001, "wkid": 102100, "xyUnits": 10000, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "falseZ": -100000 }, "description": "This data should be used carefully for statistical analysis and reporting due to missing perimeters (see Use Limitation in metadata). Some fires are missing because historical records were lost or damaged, were too small for the minimum cutoffs, had inadequate documentation or have not yet been incorporated into the database. Other known errors with the fire perimeter database include duplicate fires and over-generalization. Over-generalization, particularly with large old fires, may show unburned \"islands\" within the final perimeter as burned. Users of the fire perimeter database must exercise caution in application of the data. Careful use of the fire perimeter database will prevent users from drawing inaccurate or erroneous conclusions from the data. This dataset may differ in California compared to that available from the National Interagency Fire Center (NIFC) due to different requirements between the two datasets.  The data covers fires back to 1878.  Please help improve this dataset by filling out this survey with feedback:Historical Fire Perimeter Dataset Feedback Current criteria for data collection are as follows:CAL FIRE (including contract counties) submit perimeters ≥10 acres in timber, ≥50 acres in brush, or ≥300 acres in grass, and/or ≥3 impacted residential or commercial structures, and/or caused ≥1 fatality.All cooperating agencies submit perimeters ≥10 acres. Version update:Firep25_1 was released in April 2026. Five hundred sixteen fires from the 2025 fire season were added to the database (42 from BLM, 264 from CAL FIRE, 65 from Contract Counties, 62 from Local Responsibility Area, 7 from NPS, 68 from USFS and 7 from USFW). Eleven fires were added from 2016\u20132024, not previously published. One duplicate record was removed (1984 HURRICANE). One perimeter was identified as a controlled burn and moved to the rxburn25_1 dataset (1987 PEPPERTREE CONTROLLED). Five perimeters were replaced with more accurate geometry. A count of 12,097 fires' collection methods were edited from Null values to Unknown. Another 78 records had attributes updated.A new field, Global ID, was added to provide a unique ID to track all fire records in this dataset including those pre-dating IRWIN IDs.The following fires were identified as meeting our collection criteria but are not included in this version and will hopefully be added in a future update: Tule (2025-CATIA-000654). Detailed metadata is included in the following document:Wildland Fire Perimeters Metadata  For any questions, please contact the data steward:Kim Wallin, GIS SpecialistCAL FIRE, Fire & Resource Assessment Program (FRAP)kimberly.wallin@fire.ca.gov ", "canModifyLayer": true, "supportedSpatialRelationships": [ "esriSpatialRelIntersects", "esriSpatialRelContains", "esriSpatialRelCrosses", "esriSpatialRelEnvelopeIntersects", "esriSpatialRelIndexIntersects", "esriSpatialRelOverlaps", "esriSpatialRelTouches", "esriSpatialRelWithin", "esriSpatialRelRelation" ], "geometryProperties": { "shapeAreaFieldName": "SHAPE_Area", "shapeLengthFieldName": "SHAPE_Length", "units": "esriMeters", "mapUnits": {"uwkid": 9001} }, "indexes": [ { "name": "FDO_OBJECTID", "isUnique": true, "description": "", "fields": "OBJECTID", "isAscending": true }, { "name": "FDO_SHAPE", "isUnique": false, "description": "", "fields": "SHAPE", "isAscending": true }, { "name": "I9UNIT_ID", "isUnique": false, "description": "", "fields": "UNIT_ID", "isAscending": true }, { "name": "I9ALARM_DATE", "isUnique": false, "description": "", "fields": "ALARM_DATE", "isAscending": true }, { "name": "G9GIS_ACRES", "isUnique": false, "description": "", "fields": "GIS_ACRES", "isAscending": true }, { "name": "I9YEAR_", "isUnique": false, "description": "", "fields": "YEAR_", "isAscending": true } ], "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "supportsDatumTransformation": true, "minScale": 0, "supportsDynamicLegends": true, "hasAttachments": false, "advancedQueryCapabilities": { "supportsStatistics": true, "supportsSqlExpression": true, "supportsTrueCurve": true, "supportsOrderBy": true, "supportsQueryRelatedPagination": true, "supportsSqlFormat": false, "useStandardizedQueries": true, "supportsLod": false, "supportsQueryWithDistance": true, "supportsQueryWithDatumTransformation": true, "supportsCountDistinct": true, "supportsCurrentUserQueries": true, "supportsAdvancedQueryRelated": true, "supportsReturningQueryExtent": true, "supportsQueryWithLodSR": false, "supportsPagination": true, "supportsDistinct": true, "supportsTimeRelation": true, "supportsQueryAnalytic": false, "supportsPercentileStatistics": true, "supportsHavingClause": true }, "subtypeField": null, "supportsCoordinatesQuantization": true, "capabilities": "Query,Map,Data", "maxScale": 0, "supportsExceedsLimitStatistics": true, "defaultVisibility": true, "hasMetadata": true, "typeIdField": null, "defaultSubtypeCode": null, "supportsVCSProjection": true, "supportedQueryFormats": "JSON, geoJSON, PBF", "hasLabels": false, "drawingInfo": { "renderer": { "symbol": { "outline": { "color": [ 168, 0, 0, 255 ], "width": 0.5, "style": "esriSLSSolid", "type": "esriSLS" }, "color": [ 255, 0, 0, 255 ], "style": "esriSFSSolid", "type": "esriSFS" }, "type": "simple" }, "scaleSymbols": true, "transparency": 0, "labelingInfo": null }, "geometryField": { "name": "SHAPE", "alias": "SHAPE", "type": "esriFieldTypeGeometry" }, "copyrightText": "CAL FIRE recognizes the important partners that have contributed to this dataset, including USDA Forest Service Region 5, USDI\u2019s Bureau of Land Management, National Park Service, National Fish and Wildlife Service, and numerous local agencies.", "geometryType": "esriGeometryPolygon" } ] }