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Predicting How Much Winds are Likely
to Increase
Transcript of keynote
speech by Donald Burfitt-Dons (continued)
The
Global Warming Alliance was set up to look at the deepening core pressures
at the centres of cyclones as a way of predicting how much winds are
likely to increase.
After all, as wind strength is directly related to
the spacing of the isobars the deeper the core pressure the tighter
the isobars and hence the stronger the winds. Other factors also influence
things, such as the proximity of other systems one has to say, but generally
speaking it’s the critical factor.
Whether they’re called cyclones, hurricanes
or typhoons, depending on which part of the world you are, the purpose
is much the same. It is the planet’s way of recycling heat energy
from the equatorial regions to the polar ones, to balance out the temperatures
on the planet.
As the oceans warm there is more energy to redistribute
and deeper and more long lasting cyclones are forming. They are also
migrating to higher latitudes. Continued Donald
Burfitt-Dons discusses the first Brazilian hurricane
the
planet's way of recycling heat energy/
the first Brazilian hurricane/cyclones
outside the tropics/how
the GWA monitors hurricane activity/the
rising tropopause/ETC activity
since the 50s/l ETC activity
since 1990/ the effect of an ETC
on London /how superwinds form/
the impact of ETCs on aircraft/data
from 21 recent storms/ UK as a breeding
ground for tornadoes/
the impact on the insurance industry/
future implications /threat
of ETCs to Europe and UK
