Each pixel-color = strategies' weighted cooling potential at that lat/lng via inverse-distance-to-cities layer.
The composite colouring equals Σᵢ aᵢ · gᵢ(x) where gᵢ is the i-th strategy's spatial kernel.
Performance vs Baseline
Σ cyan = σ-avg T (real, from sensors). Σ red dashed = no-action projection (diurnal+trend). Σ green = composite-cooling projection.