Buys Ballot's law

（重定向自Buys Ballots Law）

With the wind to one's back (the stick figure is facing out of the picture), a low-pressure center (L) will be to one's left, high pressure (H) to one's right (in the Northern Hemisphere)

In meteorology, Buys Ballot's law (Dutch pronunciation:[ˌbœy̯s bɑˈlɔt]) may be expressed as follows: In the Northern Hemisphere, if a person stands with his back to the wind, the atmospheric pressure is low to the left, high to the right. This is because wind travels counterclockwise around low pressure zones in the Northern Hemisphere. It is approximately true in the higher latitudes of the Northern Hemisphere, and is reversed in the Southern Hemisphere, but the angle between the pressure gradient force and wind is not a right angle in low latitudes.

单词	Buys Ballots Law
释义	Buys Ballots Law 英语百科 Buys Ballot's law （重定向自Buys Ballots Law） In meteorology, Buys Ballot's law (Dutch pronunciation:[ˌbœy̯s bɑˈlɔt]) may be expressed as follows: In the Northern Hemisphere, if a person stands with his back to the wind, the atmospheric pressure is low to the left, high to the right. This is because wind travels counterclockwise around low pressure zones in the Northern Hemisphere. It is approximately true in the higher latitudes of the Northern Hemisphere, and is reversed in the Southern Hemisphere, but the angle between the pressure gradient force and wind is not a right angle in low latitudes.
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