The Arctic front is a semi-continuous weather front between the masses of the arctic cold air and the warm air of the polar cells. It can also be defined as the southern boundary of the Arctic air mass. The mesoscale cycle known as the lowest pole can form along the Arctic front behind an extratropical cyclone. The Arctic air masses behind them are shallow with a deep and stable air layer above shallow cold.
Video Arctic front
Appearance in satellite images
Arctic Fronts form in the Arctic region, and move south in the south currents. When they reach northern Europe, they usually travel through open oceans, and convective convective has evolved. The rise of the Arctic Cold Front is, in effect, from a shallow Cold Front.
Arctic Cold Fronts are usually located far north so the Meteosat image alone is not sufficient to recognize it. Also, the following conceptual model might look like Arctic Cold Fronts: Cold Front pole, Polar Low and Comma. The final check is best done using the AVHRR image loop with the help of numerical model parameter fields.
Maps Arctic front
Arctic cold front type
Arctic Cold Fronts can be classified into two types:
- Baroklinik front
The front of this resembles a cold polar front, but usually not so wide. Frontal opacities become more convective with time.
- Sea/ice boundary field
The front is formed above the sea/ice boundary and moves south with the base flow. There is only an isolated Cold Front. Often this species is very shallow and weak so it can not be detected in Meteosat water vapor.
See also
- Polar climate
References
Source of the article : Wikipedia
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