The Northern and the Southern Hemispheres each have both a Polar jet and a sub-tropical jet.

The Northern Hemisphere and the Southern Hemisphere each have both a polar and a subtropical branch of the jet.

The northern and southern hemispheres each have a polar and a subtropical jet stream.

Over Asia in summer, the subtropical jet is replaced by the tropical easterly jet stream.

The Northern Hemisphere and the Southern Hemisphere each have both a polar and a subtropical branch of the jet.

Northern and southern hemispheres both have polar and subtropical jet streams also.

There are usually two jet streams in each hemisphere, the polar jet and the subtropical jet.

Both the northern and southern hemispheres of the Earth have their own jet streams, both polar and subtropical.

Lets go back south to the sub tropical jet stream.

Both the northern and southern hemispheres have a polar jet and a subtropical jet.

The northern and southern hemispheres each have a polar and a subtropical jet stream.

The northern and southern hemispheres each have a polar and a subtropical jet stream.

Both the northern and southern hemispheres of the Earth have their own jet streams, both polar and subtropical.

The Northern Hemisphere and the Southern Hemisphere each have both a polar and a subtropical branch of the jet.

The polar front jet and the subtropical jet play a role in maintaining Earth’s general circulation.