首页 > Term: polar cell
polar cell
A weak meridional circulation in the high-latitude troposphere characterized by ascending motion in the subpolar latitudes (50°–70°), descending motion over the pole, poleward motion aloft, and equatorward motion near the surface. As a residual of many transient weather systems, the polar cell is barely detectable in means with respect to time of latitude–height cross sections.
0
创建者
- Kevin Bowles
- 50% positive feedback