In a large area covered by an air mass of uniform density and situated in the northern hemisphere, isobars on the weather map are equidistant. In this case, geostrophic wind speed..

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is the same over the whole area in any direction.

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may vary over the area because of different surface roughness.

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increases when travelling north.

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increases when travelling south.

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In a large area covered by an air mass of uniform density and situated in the no...

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