Wind speed around a high
Join Date: Oct 2003
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Because the pressure gradient and centripetal coriolis force are additive round a high and opposing round a low. That is it in a nutshell, but whether that constitutes imple is another matter....
Join Date: Jul 2002
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I'm puzzled as usual! I didn't even know winds were higher round a high! It is lows that produce cyclones, trees uprooted, roofs off buildings, 150 mph winds etc. If the winds are higher round highs why don't they cause similar damage?
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I think the question intended is why, with a given lattitude and pressure gradient, is the wind stronger round a high than a low.
As stated above, although the geostrophic components are the same, the gradient and Coriolis components act in the same direction. Useful to know, if you're trying to infer wind speeds from a pressure analysis chart.
As stated above, although the geostrophic components are the same, the gradient and Coriolis components act in the same direction. Useful to know, if you're trying to infer wind speeds from a pressure analysis chart.
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A2QFI,
this is usually a "gotcha" question on FI renewals: the devil is, as usual, in the detail. For any given pressure gradient, the wind will be greater round a high than a low. However, the pressure gradient around a low is normally far greater that the average high, and as you say there is no HP equivalent of a tropical storm! The result is that "everyone knows" there is less wind round a high!
this is usually a "gotcha" question on FI renewals: the devil is, as usual, in the detail. For any given pressure gradient, the wind will be greater round a high than a low. However, the pressure gradient around a low is normally far greater that the average high, and as you say there is no HP equivalent of a tropical storm! The result is that "everyone knows" there is less wind round a high!
