Sunday, December 5, 2010

Isobars


http://www.weatheronline.co.uk/reports/wxfacts/Isobars-on-surface-maps.htm
Isobars are lines connecting points of equal pressure. The pressure readings are reduced to sea level to account for the different heights of pressure reporting stations. The tightly grouped set of lines on this map indicates a strong low-pressure system, which indicates also the point where winds are the strongest.

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