Traditional cloud seeding vs. WeatherTec™
- Traditional cloud seeding with silver iodide (“AgI”)
- Silver iodide crystals look identical to tiny ice particles
- In temperatures below about – 7°C, they can “confuse” water molecules into “growing” or being deposited on them as ice and forming tiny ice crystals
- WeatherTec™ uses electrical charge to create attractive forces between particles
- If supercooled droplets touch certain particles (called contact freezing nuclei) they will freeze instantly into ice particles
- The electric charge caused by WeatherTec™ increases the likelihood that this will occur
- Once ice particles are formed, WeatherTec™ increases the probability that they will continue to collide with other droplets and grow
WeatherTec™ works on different microphysical processes to traditional cloud seeding