5 / 20
At what time of the year are the paths of North Atlantic lows moving from west to east generally at their most southerly position?
  • A
    Autumn
  • B
    Summer
  • C
    Winter
  • D
    Spring

Refer to figure.

The polar front is the junction between the Ferrell (tropical air mass) and Polar cells (polar air mass). At this low-pressure zone, relatively warm, moist air of the Ferrel Cell runs into relatively cold, dry air of the Polar cell.
In the Northern hemisphere: Warm air mass (Tropical airmass) => South; Cold air mass (Polar air mass) => North
In the northern hemisphere, the position of the polar front is affected by the seasons:

  • During winter it typically moves to lower latitudes (further south).
  • During summer it is situated further north, closer to the poles.
In the southern hemisphere, the polar front remains almost constant regardless of the season (50ºS).

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.