In the field

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Wouldn’t it be interesting to do a little reconnaissance and see what the actual landscape looks like to compare with the fuel models?

I went out to get photographs of various spots in the field area, and found that in general, the represented fuel models made sense. Once I got back and was plotting photographs on my map, I realized that I had used 2024 LANDFIRE fuels for the exercise, instead of 2025 fuels. So, some slight differences might be accounted for in changes between ’24 and ’25.

Fuel model GR2/102 – Low load, dry climate grass

From Scott & Burgan: The primary carrier of fire in GR2 is grass, small amounts of fine dead fuel may be present.

Fuel model TL3/183 – Moderate load conifer litter

From Scott & Burgan: The primary carrier of fire in TL3 is moderate load confire litter, light load of coarse fuels. Spread rate is very low; flame length low.

Fuel model TL8/188 – Long-needle litter

From Scott & Burgan: the primary carrier of fire in TL8 is moderate load long-needle pine litter. Spread rate is moderate; flame length low.

The long-needle litter

The highest burn probability in the area from my model occurred in an area dominated by fuel model 188 – and also with very low canopy height and high canopy cover, so the area would support active crown fire.

Pretty low canopy base height and the canopy is pretty well connected

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