Step 1: Count fire in grid

A - Add Create a Grid algorithm

• Grid type: rectangle (polygon)
• Grid extent: “administrative polygon layer”
• Horizontal spacing: 1
• Vertical spacing: 1
• Horizontal overlay: 0
• Vertical overlay: 0
• Grid CRS: use project CRS

B - Add 3 Count points in polygon algorithm (One for each confidence level, rename it), ex: “Count point in grid high fire”

• Polygon input: Grid from algorithm “Create grid”
• Point input: Matching features from algorytm “Extract by expression high fire”
• Field name: nb_high_fire
• Same for nominal and low fire

💡You can copy, paste the algorithm selected in the Graphical modeller.

C - Manage dependencies

• Define dependencies depending on algorithm execution order set (Count points in grid high, …nominal, …low).

D - Run the model to test results consistency.

E - Save as you model, in case further developments break its execution. It will help you to get back on a solid base, if you mess up the processing.

Model output: Model_on_fire_v3.1.model3