Having just been through Hurricanes Gustav and Ike down here, I'm very interested indeed to read a new theory, described in 'New Scientist', of how hurricanes might be 'tamed' at last.
Each year, hurricanes or typhoons may cause billions of dollars' worth of damage and a large number of fatalities. It would be hugely significant if we could find an effective way of reducing the destructive power of these storms, which convert heat energy from warm oceans into damaging kinetic energy in the atmosphere.
Now Arkadii Leonov at the University of Akron in Ohio says that the complex air flows and other atmospheric "machinery" that produce this prodigious power are surprisingly delicate.
Supersonic solution
In a patent application, Leonov and colleagues say that they can put a spanner in the atmospheric works by flying supersonic jet aircraft in concentric circles around a hurricane's eye, the calm area around which the storm rotates.
The idea is that the sonic-boom shockwave would dramatically raise air pressure in the eye, disrupting the upward flow of warm air that drives the hurricane.
But how many planes would you need? Sonic booms spread out as they travel away from an aircraft, so even a small number of relatively small aircraft could do the job, say Leonov and colleagues.
"Two F-4 jet fighters flying at approximately Mach 1.5 are sufficient to suppress, mitigate and/or destroy a typical sized hurricane/typhoon," they claim in their application.
Well, well, well! I'll be interested to see whether this works in real life. There's only one problem that I can foresee - that of getting volunteers to fly their aircraft into and through the hurricane for a few hours! If it doesn't work, the hazards to the aircraft (and their pilots) will be very real.
Peter
3 comments:
If I read their application correctly, they'd better invent and patent a supersonic tanker for those F-4's.
And flying at "near water" flight paths. That should really make things interesting.
So if I have this right, warm water causes air to expand and rise. Like, millions of tons of it. What is 50 tons of F-4 going to do other than make noise? Maybe I should ask them if they'd like to buy this bridge I've got cheap.
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