Mountain torque

From Glossary of Meteorology



mountain torque

The torque about a given axis exerted on or by the earth's surface due to the force associated with a difference of pressure on two sides of a mountain.

For example, if the axis is the earth's polar axis and the air pressure is higher (level for level) on the west side of a mountain than on the east, there exists a mountain torque in the vicinity tending to speed up the earth's rotation.
See also frictional torque.


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