Monday, 26 January 2009

Blown Away in UK


When we think of hurricanes or cyclones we automatically think of the tropics. But Powerful winds could threaten both UK and Europe with the potentially destructive force of a tropical category four hurricane. And all because of global warming.

Why is this happening? There have been large scale changes in the atmosphere itself for example the boundary of the troposphere – where all the weather occurs - has moved higher by 900 feet.

Also the Hadley Cells – the circulation pattern – rising near the Equator – polewards motion in higher up and then descending in the subtropics - have expanded towards the poles by one degree of latitude or 60 nautical miles over the last thirty years.
That change represents a huge volumetric increase in stored heat energy which must be recycled to the poles one way or the other’. It is as if the extra tropic cyclones are part of the planets way of redistributing it.

Last Summer the Global Warming Alliance held a conference at the Institute of Physics Our research has shown an increase in total energy of tropical cyclones of seventy percent, while wind strength itself has increased by fifteen percent. Such an increase in velocity plays out as a doubling in aeronautical force and even more in destructive damage..

The deadly storms that pounded southwest France and northeast Spain this past week end took at least 12 lives. Should these winds hit more densely populated countries and in particular those who are not accustomed to dealing with them these numbers could be greatly increased.

Over the past ten years eighteen ETCs made landfall. We are also seeing typhoon twins or two storms one following another within a day or so. Uk for example, the geographical position where polar air masses meet tropical ones coming up from the equator makes it in particular a fertile breeding ground for tornadoes.

During the half century from 1948 to 1997 thirteen windstorms hit Europe, an average of one every three point eight years.The two most catastrophic in terms of human life, the storms of 1953 and 1962, had almost identical core pressures. Now we are getting extra tropic cyclones with pressures 12 millibars lower than that.

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