polar front
Several fronts and semipermanent high and low pressure systems characterize the Arctic. The "polar front" marks the boundary between cold polar air masses and warm tropical air masses.
Polar Front: A meteorological term for the line of discontinuity which occurs under certain conditions between a mass of air coming from polar regions and another mass from more temperate zones.
At mid-latitudes in the northern and southern hemisphere these storms are found in westerly circulations connected with a polar front. The intensity depends on: frontal activity, origin of the air mass, season, Orographic effect and pressure changes.
  
|
RSS
