Name: RAVG Severity
Display Field: GIS_FireName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Wildfire burn severity data was downloaded from the RAVG website (https://burnseverity.cr.usgs.gov/ravg/data-access). Burned Severity raster’s, measured as percent Basal Area Loss in 7 categories (BA7), were compiled in a central ArcGIS file geodatabase. All raster datasets were projected to CA Teale Albers NAD83 (meters) and clipped to an area representing the Montane and Upper Montane (see explanation below) region within the National Forest System Administrative Boundaries. Once all raster datasets were clipped to the appropriate area, they were further reclassified into Very Low/Unburned (Class 1), Low (Class 2/3), Moderate (Class 4/5) and High (Class 6/7). Total acreages for each class within the montane/upper montane for each administrative forest were calculated by summing the pixels associated with that class and multiplied by the area of the pixel.
Copyright Text: US Forest Service Pacific Southwest Region GIS team, RAVG Team:
Miller, J. D., & Thode, A. E. (2007). Quantifying burn severity in a heterogeneous landscape with a relative version of the delta Normalized Burn Ratio (dNBR). Remote Sensing of Environment, 109(1), 66-80.
Miller, J. D., Knapp, E. E., Key, C. H., Skinner, C. N., Isbell, C. J., Creasy, R. M., & Sherlock, J. W. (2009). Calibration and validation of the relative differenced Normalized Burn Ratio (RdNBR) to three measures of fire severity in the Sierra Nevada and Klamath Mountains, California, USA. Remote Sensing of Environment, 113(3), 645-656.
Miller, J. D., & Quayle, B. (2015). Calibration and validation of immediate post-fire satellite-derived data to three severity metrics. Fire Ecology, 11(2), 12-30.
Min. Scale: 0
Max. Scale: 0
Default Visibility: true
Max Record Count: 2000
Supported query Formats: JSON, geoJSON, PBF
Use Standardized Queries: True
Extent:
XMin: -332874.291414408
YMin: -481640.470795634
XMax: 320405.708585594
YMax: 460569.529204367
Spatial Reference: 3310 (3310)
Drawing Info:
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HasM: false
Has Attachments: false
Has Geometry Properties: true
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: OBJECTID
Unique ID Field:
IsSystemMaintained : True
Global ID Field:
Type ID Field: Severity
Fields:
- OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
- FID_ravg_ba7_Severity_Merged_20 (type: esriFieldTypeInteger, alias: FID_ravg_ba7_Severity_Merged_2022, SQL Type: sqlTypeOther, nullable: true, editable: true)
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- gridcode (type: esriFieldTypeInteger, alias: gridcode, SQL Type: sqlTypeOther, nullable: true, editable: true)
- GIS_Acres (type: esriFieldTypeDouble, alias: GIS_Acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
- GIS_Year (type: esriFieldTypeSmallInteger, alias: GIS_Year, SQL Type: sqlTypeOther, nullable: true, editable: true)
- GIS_FireName (type: esriFieldTypeString, alias: GIS_FireName, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
- MERGE_SRC (type: esriFieldTypeString, alias: MERGE_SRC, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
- Severity (type: esriFieldTypeString, alias: Severity, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
- SeveritySort (type: esriFieldTypeSmallInteger, alias: SeveritySort, SQL Type: sqlTypeOther, nullable: true, editable: true)
- FID_Montane_Upper_Montane_2021 (type: esriFieldTypeInteger, alias: FID_Montane_Upper_Montane_2021, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Ecozone (type: esriFieldTypeString, alias: Ecozone, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
- Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
- Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)
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Name: High
Domains:
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Name: Moderate
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Name: Low
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Prototype:
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Name: Unburned
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Prototype:
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 10/31/2023 4:35:57 PM
Schema Last Edit Date: 10/31/2023 4:35:57 PM
Data Last Edit Date: 9/26/2023 4:59:10 PM
Supported Operations:
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