Interesting (sorry, I can't post links yet).
From the NZ Ministry of Business, Innovation & Employment website:
Pyper Vision is developing a solution that uses remotely piloted aircraft to clear fog at airports by dispersing a safe water-absorbing product that soaks up moisture in the air. A critical area of sky can be cleared in as little as 10 minutes, allowing safe take-off and landing to resume.
Pyper Vision is aiming to test and use its technology in airports throughout New Zealand, with a view to taking the product global. The absorbent used by Pyper Vision is approved for use by the Environmental Protection Authority and meets drinking water standards.
From the company's website:
Pyper Vision disperses fog to empower your passengers to fly on time, every time. Using our intelligent dispersal system, we bring fog to the ground, clearing the skies for take-off.
Our system is specifically designed for use at airports, preventing disruption to commercial operations on foggy days.
We get to work on foggy mornings, before it can pose an inconvenience to passengers. Through 30 minutes of operation at an airport, fog can be cleared, allowing aircraft to take off and land for hours.
While there are some ways to manage and mitigate the effects of fog, our system is designed to remove the hazard completely.