AZWRAP/SurfaceFuels (ImageServer)

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Service Description: This WWA Fuels 40 dataset is a subset of the LANDFIRE fuel data. An urban mask which excludes the core urban area that are not in the neighborhood or threatened by fire burning in wildland fuels area has been applied where values in these urban areas have been reclassed to value 91 (Urban). The data was susbset for use in the West Wide Wildfire Risk Assessment. The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: These fire behavior fuel models represent distinct distributions of fuel loadings found among surface fuel components (live and dead), size classes and fuel types. The fuel models are described by the most common fire carrying fuel type (grass, brush, timber litter or slash), loading and surface area-to-volume ratio by size class and component, fuelbed depth and moisture of extinction. Further detail can be found in Scott and Burgan (2005) and Rothermel (1983). This data layer contains a complete set of fire behavior fuel models for use with Rothermel's fire spread models. Characteristics of the new fuel model set, its development and its relationship to the original set of 13 fire behavior fuel models can be found in Burgan (2005).In fire behavior fuel models, canopy characteristics are used to compute shading, wind reduction factors, spotting distances, crown fuel volume, spread characteristics of crown fires and incorporate the effects of ladder fuels for transitions from a surface to crown fire. Canopy characteristics refer to the tree canopy. Where there are tree canopies, i.e. existing vegetation types that are forest and woodland, LANDFIRE has attributed the grid with canopy characteristics with some exceptions. There will be no canopy characteristics in fuel types where the tree canopy is considered a part of the surface fuel and the surface fire behavior fuel model is chosen as such. This is because LANDFIRE assumes the potential burnable biomass in the tree canopy has been accounted for in the surface fuel model parameters. For example, young or short conifer stands where the trees are represented by a shrub type fuel model will not have canopy characteristics.Field plot data contributed either directly or indirectly to this LANDFIRE National data product. Go to http://www.landfire.gov/participate_acknowledgements.php for more information regarding contributors of field plot data. REFRESH 2008 (lf_1.1.0)Refresh 2008 (lf_1.1.0) used 2001 data as a launching point to incorporate disturbance and its severity, both managed and natural, which occurred on the landscape after 2001. Specific examples of disturbance are: fire, vegetation management, weather, and insect and disease. The final disturbance data used in Refresh 2008 (lf_1.1.0) is the result of several efforts that include data derived in part from remotely sensed land change methods, Monitoring Trends in Burn Severity (MTBS), and the LANDFIRE Refresh events data call. Vegetation growth was modeled where both disturbance and non-disturbance occurs.For details on methods, see Process Description for LANDFIRE Refresh 2008 (lf_1.1.0). The data was subset by: Sanborn Solutions 610 SW Broadway, Ste #310 Portland, OR 97205 (503)228-8708

Name: AZWRAP/SurfaceFuels

Description: This WWA Fuels 40 dataset is a subset of the LANDFIRE fuel data. An urban mask which excludes the core urban area that are not in the neighborhood or threatened by fire burning in wildland fuels area has been applied where values in these urban areas have been reclassed to value 91 (Urban). The data was susbset for use in the West Wide Wildfire Risk Assessment. The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects. DATA SUMMARY: These fire behavior fuel models represent distinct distributions of fuel loadings found among surface fuel components (live and dead), size classes and fuel types. The fuel models are described by the most common fire carrying fuel type (grass, brush, timber litter or slash), loading and surface area-to-volume ratio by size class and component, fuelbed depth and moisture of extinction. Further detail can be found in Scott and Burgan (2005) and Rothermel (1983). This data layer contains a complete set of fire behavior fuel models for use with Rothermel's fire spread models. Characteristics of the new fuel model set, its development and its relationship to the original set of 13 fire behavior fuel models can be found in Burgan (2005).In fire behavior fuel models, canopy characteristics are used to compute shading, wind reduction factors, spotting distances, crown fuel volume, spread characteristics of crown fires and incorporate the effects of ladder fuels for transitions from a surface to crown fire. Canopy characteristics refer to the tree canopy. Where there are tree canopies, i.e. existing vegetation types that are forest and woodland, LANDFIRE has attributed the grid with canopy characteristics with some exceptions. There will be no canopy characteristics in fuel types where the tree canopy is considered a part of the surface fuel and the surface fire behavior fuel model is chosen as such. This is because LANDFIRE assumes the potential burnable biomass in the tree canopy has been accounted for in the surface fuel model parameters. For example, young or short conifer stands where the trees are represented by a shrub type fuel model will not have canopy characteristics.Field plot data contributed either directly or indirectly to this LANDFIRE National data product. Go to http://www.landfire.gov/participate_acknowledgements.php for more information regarding contributors of field plot data. REFRESH 2008 (lf_1.1.0)Refresh 2008 (lf_1.1.0) used 2001 data as a launching point to incorporate disturbance and its severity, both managed and natural, which occurred on the landscape after 2001. Specific examples of disturbance are: fire, vegetation management, weather, and insect and disease. The final disturbance data used in Refresh 2008 (lf_1.1.0) is the result of several efforts that include data derived in part from remotely sensed land change methods, Monitoring Trends in Burn Severity (MTBS), and the LANDFIRE Refresh events data call. Vegetation growth was modeled where both disturbance and non-disturbance occurs.For details on methods, see Process Description for LANDFIRE Refresh 2008 (lf_1.1.0). The data was subset by: Sanborn Solutions 610 SW Broadway, Ste #310 Portland, OR 97205 (503)228-8708

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Service Data Type: esriImageServiceDataTypeGeneric

Min Values: 91

Max Values: 202

Mean Values: 121.81573293578008

Standard Deviation Values: 21.181157008317864

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