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In the previous Forest Action Plan, the layer used for the Wildfire and Public Safety issue was the Level of Concern layer developed for the Southern Wildfire Risk Assessment and which was also used in the Southern Forest Land Assessment. That layer is no longer used in the SWRA and thus a new layer was developed called Wildfire Threat.
Wildfire Threat integrates four layers including Burn Probability, Characteristic Fire Intensity Scale, Community Protection Zone, and Pine Plantation Value index. Burn Probability is taken from National Burn Probability data developed by the1 U.S. Forest Service while the other three layers are taken from the Texas Wildfire Risk Assessment. Description of these layers and their preparation for analysis is provided in the Appendix.
The following table shows the layer weights assigned to each of the four layers that were used in the raster overlay analysis.
Layer Weights Used in Geospatial Analysis for Wildfire and Public Safety
Layer Rank Layer Name Layer Weight
1 Pine Plantation Index 40
2 Community Protection Zone 20
3 Characteristic Fire Intensity 20
4 Burn Probability 20
TOTAL 100
After overlay summation, raster was reclassified into 11 classes using the following scheme.
Reclassified Layer Value Unclassified Value/100
0 0
10 0 - 8.8
20 8.8 - 14.0
30 14.0 - 17.4
40 17.4 - 21.2
50 21.2 - 25.2
60 25.2 - 27.2
70 27.2 - 29.4
80 ... |
| summary:
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In the previous Forest Action Plan, the layer used for the Wildfire and Public Safety issue was the Level of Concern layer developed for the Southern Wildfire Risk Assessment and which was also used in the Southern Forest Land Assessment. That layer is no longer used in the SWRA and thus a new layer was developed called Wildfire Threat.
Wildfire Threat integrates four layers including Burn Probability, Characteristic Fire Intensity Scale, Community Protection Zone, and Pine Plantation Value index. Burn Probability is taken from National Burn Probability data developed by the1 U.S. Forest Service while the other three layers are taken from the Texas Wildfire Risk Assessment. Description of these layers and their preparation for analysis is provided in the Appendix.
The following table shows the layer weights assigned to each of the four layers that were used in the raster overlay analysis.
Layer Weights Used in Geospatial Analysis for Wildfire and Public Safety
Layer Rank Layer Name Layer Weight
1 Pine Plantation Index 40
2 Community Protection Zone 20
3 Characteristic Fire Intensity 20
4 Burn Probability 20
TOTAL 100
After overlay summation, raster was reclassified into 11 classes using the following scheme.
Reclassified Layer Value Unclassified Value/100
0 0
10 0 - 8.8
20 8.8 - 14.0
30 14.0 - 17.4
40 17.4 - 21.2
50 21.2 - 25.2
60 25.2 - 27.2
70 27.2 - 29.4
80 ... |
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5000 |
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[] |
| description:
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| catalogPath:
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| title:
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pWildfireAndPublicSafety_CountyMean |
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| tags:
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["Wildfire and Public Safety","priority","Burn Probability","Characteristic Fire Intensity Scale","Community Protection Zone","Pine Plantation Value index","county mean"] |
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en-US |
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150000000 |
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