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Applications:
Reduce Hurricane Intensity
The intensity of an individual hurricane,
as measured by its maximum surface wind speeds or minimum surface
pressure, is affected at any
given time by a large and complex array of physical processes
governing the interaction of the storm with the underlying ocean
and with its
atmospheric environment. Few of these processes are well understood.
What is known however, that for a given ocean temperature and
atmospheric thermodynamic environment, there is an upper bound
on the intensity
that a storm may achieve, and the interaction of hurricanes with
the underlying ocean can cause substantial reduction of the storm's
intensity. Hurricanes stir cold water up to the surface, reducing
the amount of heat that flows into the storm. The magnitude of
the effect depends on the thickness of the warm layer of water
at the
top of the ocean, on the forward speed of the storm, and on its
geometric size. Typical reductions of actual intensity from the
potential intensity
are on the order of 30%.
Taking this effect one step further, estimates of the relationship
between changes in wind speed and changes in sea surface temperature
range upward to a 10% decrease in wind speed for each 0.5 degree
celsius decrease in surface temperature.
Given adequate lead time and grids of pre-installed Atmocean pumps,
we believe it is possible to cool the top 30 meters of a section
of ocean by two to three degrees Celsius, enough to significantly
reduce the intensity of a hurricane passing across this cold region.
Except when a hurricane is approaching, the pumps will be de-activated
to minimize adverse consequences on the marine community.
Continued
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