Fuelscape datasets for wildfire risk assessment in the sagebrush biome (270m)

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Short, Karen C.
Originator: Scott, Joe H.
Originator: Gilbertson-Day, Julie W.
Originator: Napoli, James M.
Originator: Olszewski, Julia H.
Originator: Chambers, Jeanne C.
Originator: Brown, Jessi L.
Originator: Crist, Michele R.
Originator: Ellsworth, Lisa M.
Originator: Reeves, Matthew C.
Originator: Strand, Eva K.
Originator: Tortorelli, Claire M.
Originator: Urza, Alexandra K.
Originator: Vaillant, Nicole M.
Publication_Date: 2024
Title:
Fuelscape datasets for wildfire risk assessment in the sagebrush biome (270m)
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Online_Linkage: https://doi.org/10.2737/RDS-2024-0004
Description:
Abstract:
The foundation of quantitative wildfire hazard or risk assessment is a current-condition fuelscape (i.e., fuel and terrain layers), ideally updated to account for recent disturbances and calibrated to reflect the fire behavior potential observed in recent historical wildfire events. This data publication provides the fuelscape generated for a wildfire risk assessment focused on the sagebrush biome of the western United States (US). The data depict ca. 2020 fuel conditions, after customization, to better reflect expected fire behavior in sagebrush ecosystems, including influences from exotic annual grass (e.g., cheatgrass) invasion and conifer (e.g., pinyon, juniper) encroachment. These data are presented as used for biome-wide geospatial fire modeling at a 270-meter resolution. The work was conducted using simulation units called “pyromes,” which represent areas of relatively homogenous contemporary fire regimes. The sagebrush biome is represented by 31 pyromes, covering about 450 million acres in total area. Fuelscapes for the 31 pyromes are included in this data product as separate multiband GeoTIFFs. The bands of each GeoTIFF store eight layers of data that describe terrain (aspect, elevation, slope), tree canopy (cover, height, base height, bulk density), and surface fuel (FBFM40). These data form the Landscape (LCP) file commonly used by US wildland fire behavior modeling systems (e.g., FlamMap, FSPro, FSim). Each fuelscape dataset includes a 30-kilometer buffer to avoid truncating the simulated fires at pyrome boundaries. A shapefile and geopackage containing the boundaries and size of each pyrome are also included.
Purpose:
In the western United States, hundreds of thousands of acres of highly imperiled sagebrush ecosystems are lost or degraded each year as a result of altered wildfire regimes. In response to these wildfire threats, extensive fuel treatment investments have been proposed throughout the region. Regional-scale assessment of wildfire risk offers a consistent means of evaluating threats to valued resources and assets, thereby facilitating the most cost-effective investments in management activities that can mitigate those risks. We used a large-fire simulation system (FSim) to estimate the probabilistic components of wildfire risk across the sagebrush biome, which includes portions of 13 western states. This publication includes the customized fuelscape data used for that fire-modeling work.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2020
Currentness_Reference:
Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
These data cover all or part of 13 states within the western United States: Washington, Oregon, California, Idaho, Montana, North Dakota, South Dakota, Wyoming, Colorado, Utah, Nevada, Arizona, and New Mexico.
Bounding_Coordinates:
West_Bounding_Coordinate: -125.85798
East_Bounding_Coordinate: -100.12020
North_Bounding_Coordinate: 48.08128
South_Bounding_Coordinate: 34.18439
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: National Research & Development Taxonomy
Theme_Keyword: Ecology, Ecosystems, & Environment
Theme_Keyword: Fire
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: fuelscape
Theme_Keyword: fire behavior
Theme_Keyword: fuel model
Theme_Keyword: sagebrush biome
Theme_Keyword: Joint Fire Science Program
Theme_Keyword: JFSP
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: western United States
Place_Keyword: Washington
Place_Keyword: Oregon
Place_Keyword: California
Place_Keyword: Idaho
Place_Keyword: Montana
Place_Keyword: North Dakota
Place_Keyword: South Dakota
Place_Keyword: Wyoming
Place_Keyword: Colorado
Place_Keyword: Utah
Place_Keyword: Nevada
Place_Keyword: Arizona
Place_Keyword: New Mexico
Access_Constraints: None
Use_Constraints:
These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Short, Karen C.; Scott, Joe H.; Gilbertson-Day, Julie W.; Napoli, James M.; Olszewski, Julia H.; Chambers, Jeanne C.; Brown, Jessi L.; Crist, Michele R.; Ellsworth, Lisa M.; Reeves, Matthew C.; Strand, Eva K.; Tortorelli, Claire M.; Urza, Alexandra K; Vaillant, Nicole M. 2024. Fuelscape datasets for wildfire risk assessment in the sagebrush biome (270m). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2024-0004
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory
Contact_Person: Karen Short
Contact_Position: Research Ecologist
Contact_Address:
Address_Type: mailing and physical
Address: Missoula Fire Sciences Laboratory
Address: 5775 US Hwy 10 W
City: Missoula
State_or_Province: MT
Postal_Code: 59808
Country: USA
Contact_Voice_Telephone: 406-329-4800
Contact_Electronic_Mail_Address: karen.c.short@usda.gov
Contact Instructions: This contact information was current as of original publication date. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Browse_Graphic:
Browse_Graphic_File_Name: \Supplements\SBRA_FBFM_270m.png
Browse_Graphic_File_Description:
The FBFM40 mosaic for the sagebrush biome for the conterminous United States using the traditional LANDFIRE color scheme. Boundaries of all 31 pyromes are also displayed.
Browse_Graphic_File_Type: PNG
Browse_Graphic:
Browse_Graphic_File_Name: \Supplements\SBRA_pyromes.png
Browse_Graphic_File_Description:
Map showing the 31 pyromes (Short et al. 2020; https://doi.org/10.2737/RDS-2020-0020) used as simulation units for the sagebrush biome risk assessment (SBRA).
Browse_Graphic_File_Type: PNG
Data_Set_Credit:
Funding for this project provided by Joint Fire Science Program (JFSP # 19-2-02-11): https://www.firescience.gov; USDA Forest Service, Fire and Aviation Management; and USDA Forest Service, Rocky Mountain Research Station.


Author Information:

Karen C. Short
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0002-3383-0460

Joe H. Scott
Pyrologix LLC
https://orcid.org/0009-0008-3246-1190

Julie W. Gilbertson-Day
Pyrologix LLC

James M. Napoli
Pyrologix LLC
https://orcid.org/0009-0002-7379-203X

Julia H. Olszewski
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0003-3205-7100

Jeanne C. Chambers
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0003-3111-269X

Jessi L. Brown
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0002-6126-7951

Michele R. Crist
US Department of Interior, Bureau of Land Management, National Interagency Fire Center
https://orcid.org/0000-0002-3506-3402

Lisa M. Ellsworth
Oregon State University
https://orcid.org/0000-0001-7232-2656

Matthew C. Reeves
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0002-3948-9574

Eva K. Strand
University of Idaho
https://orcid.org/0000-0003-3968-6671

Claire M. Tortorelli
University of California, Davis; USDA Forest Service, Pacific Northwest Research Station
https://orcid.org/0000-0001-9493-9817

Alexandra K. Urza
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0001-9795-6735

Nicole M. Vaillant
USDA Forest Service, Rocky Mountain Research Station
https://orcid.org/0000-0003-1393-979X
Native_Data_Set_Environment:
Microsoft Windows Enterprise; ArcGIS Desktop 10.8.2
Cross_Reference:
Citation_Information:
Originator: Chambers, Jeanne C.
Originator: Reeves, Matthew C.
Originator: Short, Karen C.
Originator: Urza, Alexandra K.
Originator: Hanberry, Brice
Originator: Ellsworth, Lisa M.
Originator: Strand, Eva K.
Originator: Lacy, Katherine
Originator: Taylor, Michael
Publication_Date: 2023
Title:
Using next generation fuels data and outcome-based metrics in fire risk assessments for high value resources in the sagebrush biome
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Joint Fire Science Program Final Report
Issue_Identification: JFSP # 19-2-02-11
Other_Citation_Details:
(Report is included in full data publication download: \Supplements\19-2-02-11_final_report.pdf)
Online_Linkage: https://www.firescience.gov/projects/19-2-02-11/project/19-2-02-11_final_report.pdf
Cross_Reference:
Citation_Information:
Originator: Short, Karen C.
Originator: Dillon, Gregory K.
Originator: Scott, Joe H.
Originator: Vogler, Kevin C.
Originator: Jaffe, Melissa R.
Originator: Olszewski, Julia H.
Originator: Finney, Mark A.
Originator: Riley, Karin L.
Originator: Grenfell, Isaac C.
Originator: Jolly, W. Matthew
Originator: Brittain, Stuart E.
Publication_Date: 2023
Title:
Spatial datasets of probabilistic wildfire risk components for the sagebrush biome (270m)
Geospatial_Data_Presentation_Form: journal article
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Online_Linkage: https://doi.org/10.2737/RDS-2023-0050
Analytical_Tool:
Analytical_Tool_Description:
FSim: Fire growth simulations, when run over a multitude of fire-season scenarios, each with different ignition locations and weather streams, generate burn probabilities and fire behavior distributions at each landscape location (i.e., grid cell or pixel). For a technical overview of the Fire Simulation (FSim) system developed by the USDA Forest Service, Missoula Fire Sciences Laboratory to estimate probabilistic components of wildfire risk, see Finney et al. (2011). For examples of recent national-level applications of FSim and the fuelscape data provided in this publication, see Dillon et al. (2023) and Short et al. (2023).


Dillon, Gregory K.; Scott, Joe H.; Jaffe, Melissa R.; Olszewski, Julia H.; Vogler, Kevin C.; Finney, Mark A.; Short, Karen C.; Riley, Karin L.; Grenfell, Isaac C.; Jolly, W. Matthew; Brittain, Stuart. 2023. Spatial datasets of probabilistic wildfire risk components for the United States (270m). 3rd Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2016-0034-3

Short, Karen C.; Dillon, Gregory K.; Scott, Joe H.; Vogler, Kevin C.; Jaffe, Melissa R.; Olszewski, Julia H.; Finney, Mark A.; Riley, Karin L.; Grenfell, Isaac C.; Jolly, W. Matthew; Brittain, Stuart E. 2023. Spatial datasets of probabilistic wildfire risk components for the sagebrush biome (270m). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2023-0050
Tool_Access_Information:
Tool_Access_Instructions:
Please send requests to: Fire Modeling Institute, USFS Missoula Fire Sciences Laboratory, 5775 US Highway 10 West, Missoula, Montana, 59808; SM.FS.mso_fmi@usda.gov
Tool_Citation:
Citation_Information:
Originator: Finney, Mark A.
Originator: McHugh, Charles W.
Originator: Grenfell, Isaac C.
Originator: Riley, Karin L.
Originator: Short, Karen C.
Publication_Date: 2011
Title:
A simulation of probabilistic wildfire risk components for the continental United States
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Stochastic Environmental Research and Risk Assessment
Issue_Identification: 25(7): 973-1000
Online_Linkage: https://doi.org/10.1007/s00477-011-0462-z
Online_Linkage: https://www.fs.usda.gov/research/treesearch/39312
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
No formal tests or field validation were performed to assess attribute accuracy. Instead, the final map product suite was evaluated by subject matter experts (SMEs) for plausibility via comparison to satellite imagery and fire modeling outputs from the latest national FSim data publication (i.e., Dillon et al. 2023).


Dillon, Gregory K.; Scott, Joe H.; Jaffe, Melissa R.; Olszewski, Julia H.; Vogler, Kevin C.; Finney, Mark A.; Short, Karen C.; Riley, Karin L.; Grenfell, Isaac C.; Jolly, W. Matthew; Brittain, Stuart. 2023. Spatial datasets of probabilistic wildfire risk components for the United States (270m). 3rd Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2016-0034-3
Logical_Consistency_Report:
The data are logically consistent, as verified during the quality assessment and assurance process.
Completeness_Report:
The fuelscape critique and calibration was limited to sagebrush-dominated and related EVTs that account for the majority of burnable land within the biome (see Process Step 2 below).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Short, Karen C.
Originator: Grenfell, Isaac C.
Originator: Riley, Karin L.
Originator: Vogler, Kevin C.
Publication_Date: 2020
Title:
Pyromes of the conterminous United States
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Online_Linkage: https://doi.org/10.2737/RDS-2020-0020
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1992
Ending_Date: 2020
Source_Currentness_Reference:
Ground Condition
Source_Citation_Abbreviation:
Pyromes (Short et al. 2020)
Source_Contribution:
Pyromes are landscape regions of relatively homogenous contemporary fire regimes (Short et al. 2020). The sagebrush biome comprises 31 pyromes (see Supplements\SBRA_pyromes.png), which represented the spatial domain of fuelscape development.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Forest Service
Originator: U.S. Department of the Interior
Publication_Date: 2020
Title:
LANDFIRE 2016 Fuel
Edition: LF 2016 Remap [LF 2.0.0]
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Online_Linkage: https://www.landfire.gov/fuel.php
Online_Linkage: https://www.landfire.gov/version_download.php
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2020
Source_Currentness_Reference:
Ground Condition
Source_Citation_Abbreviation:
LF 2016 - LF_2.0.0 Fuel
Source_Contribution:
LANDFIRE 2016 (LF 2016 - LF_2.0.0) canopy and surface fuel data were used to create the initial fuelscape.

LANDFIRE 2016 (version 2.0.0) fuel datasets used include: 40 Scott and Burgan Fire Behavior Fuel Models [FBFM40]; Forest Canopy Cover [CC]; Forest Canopy Height [CH]; Forest Canopy Bulk Density [CBD]; Forest Canopy Base Height [CBH].
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Forest Service
Originator: U.S. Department of the Interior
Publication_Date: 2020
Title:
LANDFIRE 2016 Topo
Edition: LF 2016 Remap [LF 2.0.0]
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Online_Linkage: https://www.landfire.gov/version_download.php
Online_Linkage: https://landfire.gov/topographic.php
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2020
Source_Currentness_Reference:
Ground Condition
Source_Citation_Abbreviation:
LF 2016 - LF_2.0.0 Topo
Source_Contribution:
LANDFIRE 2016 (LF 2016 - LF_2.0.0) topographic data were used to create the initial fuelscape.

LANDFIRE 2016 (version 2.0.0) topographic datasets used include: Aspect [ASP]; Elevation [DEM]; Slope [SLP].
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Forest Service
Originator: U.S. Department of the Interior
Publication_Date: 2020
Title:
LANDFIRE 2016 Dist
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Online_Linkage: https://landfire.gov/disturbance.php
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2017
Ending_Date: 2019
Source_Currentness_Reference:
Ground Condition
Source_Citation_Abbreviation:
LANDFIRE annual disturbance rasters
Source_Contribution:
LANDFIRE annual disturbance rasters were used to identify areas that experienced wildfires in 2017, 2018, and 2019.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Forest Service
Originator: U.S. Department of the Interior
Publication_Date: 2020
Title:
LANDFIRE 2016 Veg
Edition: LF 2016 Remap [LF 2.0.0]
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: Earth Resources Observation and Science Center (EROS), U.S. Geological Survey
Online_Linkage: https://www.landfire.gov/version_download.php
Online_Linkage: https://landfire.gov/vegetation.php
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2020
Source_Currentness_Reference:
Ground Condition
Source_Citation_Abbreviation:
LF 2016 - LF_2.0.0 Veg
Source_Contribution:
LANDFIRE 2016 (LF 2016 - LF_2.0.0) vegetation data were used to customize the fuelscape.

LANDFIRE 2016 (version 2.0.0) vegetation datasets used include: Biophysical Setting [BpS]; Existing Vegetation Cover [EVC]; Existing Vegetation Height [EVH]; Existing Vegetation Type [EVT].
Process_Step:
Process_Description:
1. Prepare the initial landscape file (LCP; fuelscape).

LANDFIRE version 2.0.0 (ca. 2016, with 30-m grid resolution) fuel (LF 2016 - LF_2.0.0 Fuel) and topography data (LF 2016 - LF_2.0.0 Topo) were downloaded as full-extent mosaics from landfire.gov and extracted to the sagebrush biome. Disturbances, including large wildfires, from 2017-2019 were incorporated using data from 1) LANDFIRE (LANDFIRE annual disturbance rasters), 2) FACTS (https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_HazardousFuelsTreatments_01/MapServer), 3) NFPORS (https://services3.arcgis.com/T4QMspbfLg3qTGWY/ArcGIS/rest/services/Integrated_Interagency_Fuels_Treatments_View/FeatureServer), and 4) recent fire severity maps and fire perimeters from MTBS (https://www.mtbs.gov/) so that the resulting fuelscape represented ca. 2020 conditions (e.g., see Napoli et al. 2022).


2. Identify priority LANDFIRE EVTs for fuelscape updates

The approximately 450 million-acre sagebrush biome includes a variety of sagebrush-dominated and sagebrush-related ecosystems (e.g., Pinyon-Juniper shrublands and woodlands). LANDFIRE EVTs accounting for the majority of burnable land and prioritized for potential fuel model updates included the following (representative percentage of burnable land in the ca. 2020 fuelscape is reported in parentheses for each):

EVT 2080 - Sh Inter-Mountain Basins Big Sagebrush Shrubland (11%)
EVT 2125 – Sh Inter-Mountain Basins Big Sagebrush Steppe (7.4%)
EVT 2141 – He Northwestern Great Plains Mixedgrass Prairie (7.3%)
EVT 2126 – Sh Inter-Mountain Basins Montane Sagebrush Steppe (6.8%)
EVT 2016 – Tr Colorado Plateau Pinyon-Juniper Woodland (4%)
EVT 2127 – Sh Inter-Mountain Basins Semi-Desert Shrub-Steppe (3%)
EVT 2081 – Sh Inter-Mountain Basins Mixed Salt Desert Scrub (2.8%)
EVT 2019 – Tr Great Basin Pinyon-Juniper Woodland (2.5%)
EVT 2282 – Sh Great Basin & Intermountain Ruderal Shrubland (1.8%)
EVT 2082 – Sh Mojave Mid-Elevation Mixed Desert Scrub (1.7%)
EVT 2079 – Sh Great Basin Xeric Mixed Sagebrush Shrubland (1.6%)
EVT 2153 – Sh Inter-Mountain Basins Greasewood Flat (1.4%)
EVT 2124 – Sh Columbia Plateau Low Sagebrush Steppe (1.2%)
EVT 2135 – He Inter-Mountain Basins Semi-Desert Grassland (1%)
EVT 2279 – Sh Interior Western North American Temperate Ruderal Grassland & Shrubland (1%)
EVT 2017 – Tr Columbia Plateau Western Juniper Woodland and Savanna (0.7%)


3. Review and calibrate the fuelscape to align better with expected fire behavior

A static wildfire simulation system, gNexus (https://pyrologix.com/downloads/), was used with the initial ca. 2020 fuelscape to generate maps of potential fire behavior for the 97th percentile weather condition. Mapped fire behavior attributes included: rate of spread (ROS), flame length (FL), fire type (surface vs. crown), crown fraction burned (CFB), Torching Index (TI), and Crowning Index (CI). Fire behavior characteristics were summarized by priority EVT to facilitate critique of the LANDFIRE fuels mapping rules by SMEs.

LANDFIRE fuels data are derived from remotely sensed vegetation information, using logic/rules that translate the vegetation information into mapped fuels. We leveraged a consolidated set of LANDFIRE fuels mapping rules maintained by Pyrologix LLC that provided a single region-wide ruleset for each EVT. Rulesets for the priority EVTs were reviewed during a series of calibration workshops. The goal of calibration was to update the mapping process to better reflect expected fire behavior in sagebrush ecosystems, including influences from exotic annual grass (e.g., cheatgrass) invasion and conifer (e.g., pinyon, juniper) encroachment. For more details about standard fuel calibration workshops and processes developed by Pyrologix LLC, see Napoli et al. (2022).


4. Prepare final fuelscape datasets for biome-wide FSim fire modeling

The fuel and topography rasters were resampled to 270-meter (m) resolution using the nearest-neighbor resampling method. These resampled 270-m rasters were snapped to the 270-m rasters published in the previous edition of national FSim data products (Short et al. 2020). The coarser 270-m resolution was needed to use the data as inputs to the computationally intensive geospatial fire modeling application, FSim (Finney et al. 2011, Short et al. 2023).

The sagebrush biome is represented by 31 pyromes, covering about 450 million acres in total area. Fuelscapes for the 31 pyromes were created as separate multiband GeoTIFFs. Each fuelscape dataset includes a 30-kilometer buffer to avoid truncating the simulated fires at pyrome boundaries. A shapefile and geopackage containing the boundary, name, ID number, and size of each pyrome is included in this product.

The bands of each GeoTIFF store eight layers of data that describe terrain (aspect, elevation, slope), tree canopy (cover, height, base height, bulk density), and surface fuel (FBFM40). These data form the Landscape (LCP) file (https://landfire.gov/lcp.php) commonly used by US wildland fire behavior modeling systems (e.g., FlamMap, FSPro, FSim).


Finney, Mark A.; McHugh, Charles W.; Grenfell, Isaac C.; Riley, Karin L.; Short, Karen C. 2011. A simulation of probabilistic wildfire risk components for the continental United States. Stochastic Environmental Research and Risk Assessment. 25: 973-1000. https://doi.org/10.1007/s00477-011-0462-z and https://www.fs.usda.gov/research/treesearch/39312

Napoli, James M., Gilbertson-Day, Julie W., Scott, Joe H. 2022. A fuelscape for all-lands in Utah. Report prepared for the Utah Department of Natural Resources, Division of Forestry, Fire, and State Lands. Missoula, MT: Pyrologix, LLC. http://pyrologix.com/reports/Utah_FuelscapeReport.pdf

Short, Karen C.; Grenfell, Isaac C.; Riley, Karin L.; Vogler, Kevin C. 2020. Pyromes of the conterminous United States. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2020-0020

Short, Karen C.; Dillon, Gregory K.; Scott, Joe H.; Vogler, Kevin C.; Jaffe, Melissa R.; Olszewski, Julia H.; Finney, Mark A.; Riley, Karin L.; Grenfell, Isaac C.; Jolly, W. Matthew; Brittain, Stuart E. 2023. Spatial datasets of probabilistic wildfire risk components for the sagebrush biome (270m). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2023-0050
Source_Used_Citation_Abbreviation:
1. Short et al. (2020)
2. LF 2016 - LF_2.0.0 Fuel
3. LF 2016 - LF_2.0.0 Topo
4. LANDFIRE annual disturbance rasters
5. LF 2016 - LF_2.0.0 Veg
Process_Date: 2023
Back to Top
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference_Method:
Vector (SHP/GPKG) and raster (GeoTIFF) data within the western United States: Washington, Oregon, California, Idaho, Montana, North Dakota, South Dakota, Wyoming, Colorado, Utah, Nevada, Arizona, and New Mexico.
Back to Top
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 29.5
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -96
Latitude_of_Projection_Origin: 23
False_Easting: 0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.001
Ordinate_Resolution: 0.001
Planar_Distance_Units: Meters
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 29.5
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -96
Latitude_of_Projection_Origin: 23
False_Easting: 0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 270
Ordinate_Resolution: 270
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0000
Denominator_of_Flattening_Ratio: 298.25722210
Back to Top
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Below you will find a list and description of the files included in this data publication.


VARIABLE DESCRIPTION FILE (1)

1. \Data\_variable_descriptions.csv: Comma-separated values (CSV) file containing a list and description of variables found in applicable data files. (A description of these variables is also provided in the metadata below.)

Columns include:

Filename = Name of data file
Variable = Name of variable
Units = Units (if applicable)
Precision = Precision (if applicable)
Description = Description of variable


DATA FILES (33)

1-31. \Data\SBRA_PY###_270_lcp.tif: Multiband georeferenced (GeoTIFF) raster files (and associated files) containing the calibrated fuelscape for each of 31 pyromes (where PY### represents the pyrome number) within the sagebrush biome, at 270-meter grid spatial resolution. These files collectively provide the landscape (i.e., LCP - https://landfire.gov/lcp.php) input data necessary to run standard US fire modeling applications, including FlamMap - https://www.firelab.org/project/flammap (Finney 2006) and FSim - https://www.firelab.org/project/fsim-wildfire-risk-simulation-software (Finney et al. 2011). The bands of an LCP file store eight layers of data that describe terrain, tree canopy, and surface fuel.

These eight layers include:

Band1 = Elevation (https://landfire.gov/elevation.php) (meters)
Band2 = Slope (https://landfire.gov/slope.php) (degrees)
Band3 = Aspect (https://landfire.gov/aspect.php) (degrees)
Band4 = Scott and Burgan 40 Fire Behavior Fuel Models (https://landfire.gov/fbfm40.php) (integer 0-255)
Band5 = Canopy Cover (https://landfire.gov/cc.php) (percent)
Band6 = Canopy Height (https://landfire.gov/ch.php) (meters*10)
Band7 = Canopy Base Height (https://landfire.gov/cbh.php) (meters*10)
Band8 = Canopy Bulk Density (https://landfire.gov/cbd.php) ((kilograms per cubic meter)*10)


32-33. \Data\SBRA_pyromes.shp and \Data\SBRA_pyromes.gpkg: Shapefile (SHP) (and associated files) and OGC Geopackage (GPKG) containing the 31 pyromes (Short et al. 2020) used as simulation units for the sagebrush biome risk assessment (SBRA).

Attributes include:

FID = Internal feature number automatically generated by Esri
Shape = Feature geometry automatically generated by Esri
Pyrome = Number assigned to pyrome (polygons)
Name = Name of pyrome (polygons)
Acres = Area of pyrome (acres)
Hectares = Area of pyrome (hectares)



SUPPLEMENTAL FILES (3)

1. \Supplements\19-2-02-11_final_report.pdf: Portable Document Format (PDF) file containing the 2023 Joint Fire Science Program Final Report for JFSP Project ID: 19-2-02-11, "Using next generation fuels data and outcome-based metrics in fire risk assessments for high value resources in the sagebrush biome".

2. \Supplements\SBRA_FBFM_270m.png: Portable Network Graphics (PNG) file displaying the FBFM40 mosaic for the sagebrush biome for the conterminous United States using the traditional LANDFIRE color scheme. Boundaries of all 31 pyromes are also displayed.

3. \Supplements\SBRA_pyromes.png: PNG file displaying the 31 pyromes (Short et al. 2020) used as simulation units for the sagebrush biome risk assessment (SBRA).
Entity_and_Attribute_Detail_Citation:
Finney, Mark A. 2006. An Overview of FlamMap Fire Modeling Capabilities. In: Andrews, Patricia L.; Butler, Bret W., comps. 2006. Fuels Management-How to Measure Success: Conference Proceedings. 28-30 March 2006; Portland, OR. Proceedings RMRS-P-41. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 213-220. https://www.fs.usda.gov/research/treesearch/25948

Finney, Mark A.; McHugh, Charles W.; Grenfell, Isaac C.; Riley, Karin L.; Short, Karen C. 2011. A simulation of probabilistic wildfire risk components for the continental United States. Stochastic Environmental Research and Risk Assessment. 25: 973-1000. https://doi.org/10.1007/s00477-011-0462-z and https://www.fs.usda.gov/research/treesearch/39312

Short, Karen C.; Grenfell, Isaac C.; Riley, Karin L.; Vogler, Kevin C. 2020. Pyromes of the conterminous United States. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2020-0020
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Research and Development
Contact_Position: Research Data Archivist
Contact_Address:
Address_Type: mailing and physical
Address: 240 West Prospect Road
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526
Country: USA
Contact_Voice_Telephone: see Contact Instructions
Contact Instructions: This contact information was current as of March 2024. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Resource_Description: RDS-2024-0004
Distribution_Liability:
Metadata documents have been reviewed for accuracy and completeness. Unless otherwise stated, all data and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. However, neither the author, the Archive, nor any part of the federal government can assure the reliability or suitability of these data for a particular purpose. The act of distribution shall not constitute any such warranty, and no responsibility is assumed for a user's application of these data or related materials.

The metadata, data, or related materials may be updated without notification. If a user believes errors are present in the metadata, data or related materials, please use the information in (1) Identification Information: Point of Contact, (2) Metadata Reference: Metadata Contact, or (3) Distribution Information: Distributor to notify the author or the Archive of the issues.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GPKG
Format_Version_Number: see Format Specification
Format_Specification:
OGC Geopackage
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2024-0004
Digital_Form:
Digital_Transfer_Information:
Format_Name: PDF
Format_Version_Number: see Format Specification
Format_Specification:
Portable Document Format file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2024-0004
Digital_Form:
Digital_Transfer_Information:
Format_Name: PNG
Format_Version_Number: see Format Specification
Format_Specification:
Portable Network Graphic image file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2024-0004
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Version_Number: see Format Specification
Format_Specification:
Shapefile (and associated files)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2024-0004
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: see Format Specification
Format_Specification:
Georeferenced (GeoTIFF) raster files (and associated files)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2024-0004
Fees: None
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20240313
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory
Contact_Person: Karen Short
Contact_Position: Research Ecologist
Contact_Address:
Address_Type: mailing and physical
Address: Missoula Fire Sciences Laboratory
Address: 5775 US Hwy 10 W
City: Missoula
State_or_Province: MT
Postal_Code: 59808
Country: USA
Contact_Voice_Telephone: 406-329-4800
Contact_Electronic_Mail_Address: karen.c.short@usda.gov
Contact Instructions: This contact information was current as of original publication date. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
Back to Top