lower atmosphere

lower atmosphere

[′lō·ər ′at·mə‚sfir] (meteorology) That part of the atmosphere in which most weather phenomena occur (that is, the troposphere and lower stratosphere); in other contexts, the term implies the lower troposphere.

lower atmosphere

The atmosphere may be divided into two parts viz. the lower and the upper atmosphere. The tropopause and the troposphere are known as the lower atmosphere. It is that part of the atmosphere in which most weather phenomena occur. The region above the tropopause is called the upper atmosphere.