Very high biometric pressure?

High air pressure occurs from a combination of air temperature and air circulation, so by itself, high barometric pressure is not a sign of global warming. In fact, hurricane Katrina that occurred last year was the second lowest air pressure ever recorded on this planet. Katrina occurred because of unusually high ocean temperatures.

High pressure is dry air, low pressure is moist air. Warmer temperatures cause lower air pressure to develop over the oceans near the equator, and cause higher air pressure to build over large continents, and unstable conditions occur in between. At global scale, a warmer earth would have a tendency to have lower air pressure since the earth is 3/4 water, but this could be offset by higher rainfall and changes in wind patterns.

With no change in temperature, high pressure systems can build if air stagnates over a continent. But high pressure systems move toward low pressure systems, so as air pressure builds, winds tend to increase and dissipate the high pressure system. Its the complexity in air circulation and ocean circulation patterns that causes so much uncertainty about global warming. The only thing certain to occur with global warming is chaotic and unpredictable changes in ocean and wind circulation patterns.

Merry Christmas!

biometric pressure - pressure at any point in the Earth's atmosphere.

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For the formular go to: http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic...