Four ways to see the process.

00–08 seconds — 01 · ARRIVAL
Fog contains liquid droplets carried by air. A collector must encounter that moving water.

08–16 seconds — 02 · CHARGE + FIELD
Charging droplets and applying an electric field can change their paths toward a solid collector.

16–24 seconds — 03 · CAPTURE + DRAIN
Droplets that reach a surface can merge and drain. Water retained or re-entrained is a separate loss.

24–32 seconds — 04 · MEASURE
Measure delivered water, optical change and whole-system energy separately. Collection alone does not prove clearer air.

00–08 seconds — 01 · TRANSMISSION
Compare light transmitted through fog with a clear-path reference, using a defined optical path.

08–16 seconds — 02 · EXTINCTION
In a homogeneous attenuation model, transmission T gives extinction beta: beta = -ln(T) / L.

16–24 seconds — 03 · DROPLET SIZE
Droplet size changes how water scatters light. Equal liquid-water mass does not guarantee equal transmission.

24–32 seconds — 04 · VALIDATION
Use matched controls, multiple optical paths and independent days. A single cleared beam does not establish runway visibility.

00–08 seconds — 01 · RESOURCE
A fog collector intercepts existing liquid droplets. Harvesting water vapor requires a different phase-change process.

08–16 seconds — 02 · DESTINATIONS
Some intercepted water drains; some remains on surfaces or returns to the airflow. Measure each destination.

16–24 seconds — 03 · RECEIVER BALANCE
Receiver storage changes with deposition and rainfall minus evaporation, withdrawals and other losses.

24–32 seconds — 04 · USEFUL OUTPUT
Report delivered water, energy, maintenance and water quality together. Collected water is not automatically suitable for its intended use.

00–08 seconds — 01 · EXPOSURE
Hazard observations describe exposure: which conditions occurred, where, when and at what severity.

08–16 seconds — 02 · READINESS
Weatherhill Score assesses readiness across five proposed pillars using control-specific evidence.

16–24 seconds — 03 · EVIDENCE GAPS
Missing evidence stays unknown. Critical gaps remain visible even when the other controls score well.

24–32 seconds — 04 · IMPROVEMENT
Verified improvements can raise readiness while hazard exposure stays the same. The score is a pilot method, not a proven loss forecast.