by FMI

Common Remarks

In the literature the concept of an Arctic Front has several somewhat different definitions:
  1. According to the definition of fronts, an Arctic Front is a boundary between arctic and polar air masses.
  2. A temperature gradient forming in a shallow layer over ice/sea border can develop into a frontal structure, which is then called an Arctic Front.
  3. Convective lines attached to Polar Lows (cold front) and Commas (tail) have been called Arctic Fronts.
  4. Cold Fronts with very cold air behind have been called Arctic Fronts.
In this study the categories 3 and 4 were omitted, and "Arctic Cold Front" refers to features that are type 1 or type 2, which are called "baroclinic" and "ice/sea boundary", respectively. In this classification 36 Arctic Fronts were found between February 2003 and March 2005. Only three of them reached central Europe.