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There are some emerging technologies which may have important applications for fog dispersal. As
discussed earlier, heating is the most effective dispersal method for the most commonly occurring type of fog.
Unfortunately, it has proved impractical for most situations and would be difficult at best for contingency
operations. However, the development of directed radiant energy technologies, such as microwaves and
lasers, could provide new possibilities.
Lab experiments have shown microwaves to be effective for the heat dissipation of fog. However,
results also indicate that the energy levels required exceed the US large power density exposure limit of 100
watt/m2 and would be very expensive.13 Field experiments with lasers have demonstrated the capability to
dissipate warm fog at an airfield with zero visibility. Generating 1 watt/cm2, which is approximately the US
large power density exposure limit, the system raised visibility to one quarter of a mile in 20 seconds.14
Laser systems described in the Space Operations portion of this AF 2025 study could certainly provide this
capability as one of their many possible uses.
With regard to seeding techniques, improvements in the materials and delivery methods are not only
plausible but likely. Smart materials based on nanotechnology are currently being developed with gigaops
computer capability at their core. They could adjust their size to optimal dimensions for a given fog seeding
situation and even make adjustments throughout the process. They might also enhance their dispersal
qualities by adjusting their buoyancy, by communicating with each other, and by steering themselves within
the fog. They will be able to provide immediate and continuous effectiveness feedback by integrating with a
larger sensor network and can also change their temperature and polarity to improve their seeding effects.15
As mentioned above, UAVs could be used to deliver and distribute these smart materials.
Recent army research lab experiments have demonstrated the feasibility of generating fog.
This is how they will screew with you eyes in the sky. Trickery at is best.