LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a
shared program between the wildland fire management programs of the U.S.
Department of Agriculture's Forest Service, U.S. Department of the Interior's
Geological Survey, and The Nature Conservancy.
Landfire (LF) Historical fire regimes, intervals, and vegetation conditions
are mapped using the Vegetation Dynamics Development Tool (VDDT).
These data support fire and landscape management planning goals in
the National Cohesive Wildland Fire Management Strategy, the Federal Wildland
Fire Management Policy, and the Healthy Forests Restoration Act.
The Percent of Replacement-severity Fire (PRS) layer quantifies the amount of replacement-severity fires relative to low- and mixed-severity fires under the presumed historical fire regime.
Replacement severity is defined as greater than 75 percent average top-kill within a typical fire perimeter for a given vegetation type.
PRS was derived from the vegetation and disturbance dynamics model VDDT (Vegetation Dynamics Development Tool) (LF 1.0.0 CONUS only used the vegetation and disturbance dynamics model LANDSUM).
This layer is intended to describe one component of historical fire regime characteristics in the context of the broader historical time period represented by the LANDFIRE(LF) Biophysical Settings (BPS) layer and BPS Model documentation.
This layer is created by linking the BPS Group attribute in the BPS layer with the Refresh Model Tracker (RMT) data and assigning the PRS attribute.
This geospatial product should display a reasonable approximation of PRS, as documented in the RMT.
PRS is used in landscape assessments.
The LANDIFRE Fire datasets include:
Fire Regime Groups (FRG) is intended to characterize presumed historical
fire regimes within landscapes based on interactions between vegetation
dynamics, fire spread, fire effects, and spatial context
Mean Fire Return Interval (MFRI) quantifies the average period between
fires under the presumed historical fire regime
Percent of Low-severity Fire (PLS) image quantifies the amount of
low-severity fires relative to mixed- and replacement-severity fires
under the presumed historical fire regime and is defined as less than 25
percent average top-kill within a typical fire perimeter for a given
vegetation type
Percent of Mixed-severity Fire (PMS) layer quantifies the amount of
mixed-severity fires relative to low- and replacement-severity fires under
the presumed historical fire regime, and is defined as between 25 and 75
percent average top-kill within a typical fire perimeter for a given
vegetation type
Percent of Replacement-severity Fire (PRS) layer quantifies the amount of
replacement-severity fires relative to low- and mixed-severity fires under
the presumed historical fire regime, and is defined as greater than 75
percent average top-kill within a typical fire perimeter for a given
vegetation type
Succession Classes (SClass) layer characterizes current vegetation conditions
with respect to the vegetation species composition, cover, and height ranges
of successional states that occur within each biophysical setting
Vegetation Condition Class (VCC) represents a simple categorization of the
associated Vegetation Departure (VDEP) layer and indicates the general level
to which current vegetation is different from the simulated historical
vegetation reference conditions
Vegetation Departure (VDep) indicates how different current vegetation on a
landscape is from estimated historical conditions. VDep is based on changes
to species composition, structural stage, and canopy closure.
Bands
Pixel Size 30 meters
Bands
Name
Pixel Size
Description
PRS
meters
Percent of Replacement-severity Fire
PRS Class Table
Value
Color
Description
1
#008200
0-5%
2
#138f00
6-10%
3
#229c00
11-15%
4
#34a600
16-20%
5
#47b300
21-25%
6
#66bf00
26-30%
7
#7ecc00
31-35%
8
#9bd900
36-40%
9
#b8e600
41-45%
10
#e2f200
46-50%
11
#fffb00
51-55%
12
#fadd00
56-60%
13
#f7c600
61-65%
14
#f5a300
66-70%
15
#f08c00
71-75%
16
#eb7100
76-80%
17
#e85d00
81-85%
18
#e63d00
86-90%
19
#e32a00
91-95%
20
#de1200
96-100%
111
#0000ff
Water
112
#c8ffff
Snow / Ice
131
#4e4e4e
Barren
132
#b2b2b2
Sparsely Vegetated
133
#e1e1e1
Indeterminate Fire Regime
Image Properties
Image Properties
Name
Type
Description
PRS_classes
DOUBLE
Class values of the Percent of Replacement-severity Fire.
PRS_names
STRING
Descriptive names of Percent of Replacement-severity Fire.
Terms of Use
Terms of Use
LANDFIRE data are public domain data with no use restrictions, though if modifications
or derivatives of the product(s) are created, then please add some descriptive modifier
to the data set to avoid confusion.
Citations
Citations:
The suggested way to cite LANDFIRE products is specific to each product,
so the model for citation is provided, with an example for a particular product.
Producer. Year released. Product xxxxx:
Individual model name.
BpS Models and Descriptions, Online. LANDFIRE. Washington, DC. U.S. Department of
Agriculture, Forest Service
U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA
The Nature Conservancy (Producers). Available- URL. Access date.
Example Citation: LANDFIRE Biophysical Settings. 2018. Biophysical setting 14420:
South Texas sand sheet grassland. In: LANDFIRE Biophysical Setting Model: Map zone 36,
[Online]. In: BpS Models and Descriptions. In: LANDFIRE. Washington, DC:
U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;
U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Producers).
Available: https://www.landfire.gov/bps-models.php [2018, June 27].
Additional guidance on citation of LANDFIRE products can be found
here
LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and vegetation conditions are mapped using …
[null,null,[],[[["\u003cp\u003eThe LANDFIRE Fire PRS dataset quantifies the amount of replacement-severity fires (greater than 75% top-kill) relative to low- and mixed-severity fires under the presumed historical fire regime.\u003c/p\u003e\n"],["\u003cp\u003eIt is a product of the LANDFIRE program, a shared program between the USDA Forest Service, USGS, and The Nature Conservancy.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from 2010-01-01 to 2010-12-31 and has a spatial resolution of 30 meters.\u003c/p\u003e\n"],["\u003cp\u003eThe PRS layer is derived using the Vegetation Dynamics Development Tool (VDDT) and is used in landscape assessments.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is public domain and can be accessed and analyzed using Google Earth Engine.\u003c/p\u003e\n"]]],[],null,["# LANDFIRE PRS (Percent of Replacement-severity Fire) v1.2.0\n\nDataset Availability\n: 2010-01-01T00:00:00Z--2010-12-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [U.S. Department of Agriculture's (USDA), U.S. Forest Service (USFS), U.S. Department of the Interior's Geological Survey (USGS), and The Nature Conservancy.](https://landfire.gov/)\n\nTags\n:\n[doi](/earth-engine/datasets/tags/doi) [fire](/earth-engine/datasets/tags/fire) [landfire](/earth-engine/datasets/tags/landfire) [nature-conservancy](/earth-engine/datasets/tags/nature-conservancy) [usda](/earth-engine/datasets/tags/usda) [usgs](/earth-engine/datasets/tags/usgs) [vegetation](/earth-engine/datasets/tags/vegetation) [wildfire](/earth-engine/datasets/tags/wildfire) \n\n#### Description\n\nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a\nshared program between the wildland fire management programs of the U.S.\nDepartment of Agriculture's Forest Service, U.S. Department of the Interior's\nGeological Survey, and The Nature Conservancy.\n\nLandfire (LF) Historical fire regimes, intervals, and vegetation conditions\nare mapped using the Vegetation Dynamics Development Tool (VDDT).\nThese data support fire and landscape management planning goals in\nthe National Cohesive Wildland Fire Management Strategy, the Federal Wildland\nFire Management Policy, and the Healthy Forests Restoration Act.\n\nThe Percent of Replacement-severity Fire (PRS) layer quantifies the amount of replacement-severity fires relative to low- and mixed-severity fires under the presumed historical fire regime.\nReplacement severity is defined as greater than 75 percent average top-kill within a typical fire perimeter for a given vegetation type.\nPRS was derived from the vegetation and disturbance dynamics model VDDT (Vegetation Dynamics Development Tool) (LF 1.0.0 CONUS only used the vegetation and disturbance dynamics model LANDSUM).\nThis layer is intended to describe one component of historical fire regime characteristics in the context of the broader historical time period represented by the LANDFIRE(LF) Biophysical Settings (BPS) layer and BPS Model documentation.\nThis layer is created by linking the BPS Group attribute in the BPS layer with the Refresh Model Tracker (RMT) data and assigning the PRS attribute.\nThis geospatial product should display a reasonable approximation of PRS, as documented in the RMT.\nPRS is used in landscape assessments.\n\nThe LANDIFRE Fire datasets include:\n\n- Fire Regime Groups (FRG) is intended to characterize presumed historical fire regimes within landscapes based on interactions between vegetation dynamics, fire spread, fire effects, and spatial context\n- Mean Fire Return Interval (MFRI) quantifies the average period between fires under the presumed historical fire regime\n- Percent of Low-severity Fire (PLS) image quantifies the amount of low-severity fires relative to mixed- and replacement-severity fires under the presumed historical fire regime and is defined as less than 25 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Percent of Mixed-severity Fire (PMS) layer quantifies the amount of mixed-severity fires relative to low- and replacement-severity fires under the presumed historical fire regime, and is defined as between 25 and 75 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Percent of Replacement-severity Fire (PRS) layer quantifies the amount of replacement-severity fires relative to low- and mixed-severity fires under the presumed historical fire regime, and is defined as greater than 75 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Succession Classes (SClass) layer characterizes current vegetation conditions with respect to the vegetation species composition, cover, and height ranges of successional states that occur within each biophysical setting\n- Vegetation Condition Class (VCC) represents a simple categorization of the associated Vegetation Departure (VDEP) layer and indicates the general level to which current vegetation is different from the simulated historical vegetation reference conditions\n- Vegetation Departure (VDep) indicates how different current vegetation on a landscape is from estimated historical conditions. VDep is based on changes to species composition, structural stage, and canopy closure.\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|-------|------------|--------------------------------------|\n| `PRS` | meters | Percent of Replacement-severity Fire |\n\n**PRS Class Table**\n\n| Value | Color | Description |\n|-------|---------|---------------------------|\n| 1 | #008200 | 0-5% |\n| 2 | #138f00 | 6-10% |\n| 3 | #229c00 | 11-15% |\n| 4 | #34a600 | 16-20% |\n| 5 | #47b300 | 21-25% |\n| 6 | #66bf00 | 26-30% |\n| 7 | #7ecc00 | 31-35% |\n| 8 | #9bd900 | 36-40% |\n| 9 | #b8e600 | 41-45% |\n| 10 | #e2f200 | 46-50% |\n| 11 | #fffb00 | 51-55% |\n| 12 | #fadd00 | 56-60% |\n| 13 | #f7c600 | 61-65% |\n| 14 | #f5a300 | 66-70% |\n| 15 | #f08c00 | 71-75% |\n| 16 | #eb7100 | 76-80% |\n| 17 | #e85d00 | 81-85% |\n| 18 | #e63d00 | 86-90% |\n| 19 | #e32a00 | 91-95% |\n| 20 | #de1200 | 96-100% |\n| 111 | #0000ff | Water |\n| 112 | #c8ffff | Snow / Ice |\n| 131 | #4e4e4e | Barren |\n| 132 | #b2b2b2 | Sparsely Vegetated |\n| 133 | #e1e1e1 | Indeterminate Fire Regime |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|-------------|--------|------------------------------------------------------------|\n| PRS_classes | DOUBLE | Class values of the Percent of Replacement-severity Fire. |\n| PRS_names | STRING | Descriptive names of Percent of Replacement-severity Fire. |\n\n### Terms of Use\n\n**Terms of Use**\n\nLANDFIRE data are public domain data with no use restrictions, though if modifications\nor derivatives of the product(s) are created, then please add some descriptive modifier\nto the data set to avoid confusion.\n\n### Citations\n\nCitations:\n\n- The suggested way to cite LANDFIRE products is specific to each product,\n so the model for citation is provided, with an example for a particular product.\n Producer. Year released. Product xxxxx:\n - Individual model name.\n - BpS Models and Descriptions, Online. LANDFIRE. Washington, DC. U.S. Department of Agriculture, Forest Service\n - U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA\n - The Nature Conservancy (Producers). Available- URL. Access date.\n\n Example Citation: LANDFIRE Biophysical Settings. 2018. Biophysical setting 14420:\n South Texas sand sheet grassland. In: LANDFIRE Biophysical Setting Model: Map zone 36,\n \\[Online\\]. In: BpS Models and Descriptions. In: LANDFIRE. Washington, DC:\n U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;\n U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Producers).\n Available: \u003chttps://www.landfire.gov/bps-models.php\u003e \\[2018, June 27\\].\n Additional guidance on citation of LANDFIRE products can be found\n [here](https://landfire.gov/data/citation)\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('LANDFIRE/Fire/PRS/v1_2_0');\n\nvar visualization = {\n bands: ['PRS'],\n};\n\nMap.setCenter(-121.671, 40.699, 5);\n\nMap.addLayer(dataset, visualization, 'PRS');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/LANDFIRE/LANDFIRE_Fire_PRS_v1_2_0) \n[LANDFIRE PRS (Percent of Replacement-severity Fire) v1.2.0](/earth-engine/datasets/catalog/LANDFIRE_Fire_PRS_v1_2_0) \nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and vegetation conditions are mapped using ... \nLANDFIRE/Fire/PRS/v1_2_0, doi,fire,landfire,nature-conservancy,usda,usgs,vegetation,wildfire \n2010-01-01T00:00:00Z/2010-12-31T00:00:00Z \n17.52 -175.1 71.48 -63.66 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://landfire.gov/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/LANDFIRE_Fire_PRS_v1_2_0)"]]
