Polar Vortex-1
-The Polar Vortex is a winter phenomenon.
-Polar Vortex is cyclonic circular winds that blow in the stratosphere from west to east.
-Polar Vortex extends from tropopause through the stratosphere and into the mesosphere.
-When the vorticity is high, values of ozone is minimum and the temperature is at its highest cold. Thus, the hole has closed as the vorticity has decreased.
