Atmospheric depressions

Definition (http://en.wikipedia.org/wiki/Depression_%28weather%29)

A low-pressure area, low or depression, is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure systems form under areas of wind divergence which occur in upper levels of the troposphere. The formation process of a low-pressure area is known as cyclogenesis. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
Depression (meteorology)
Low-pressure area

Approved Date
21-Jun-2013

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