Tropical Stroms
Cyclone: a system of winds rotating inwards to an area of low pressure. The centre of a cyclone is a low-pressure region. low-pressure regions, and the Coriolis force must be in an approximate balance (or else the cyclone would collapse in on itself under the pressure gradient). The wind flow around a large cyclone is anticlockwise in the northern hemisphere, and clockwise in the southern hemisphere, due to the Coriolis effect.
Polar cyclone - Polar cyclones (also known as polar vortices, Arctic cyclones, and sub-polar cyclones) are low-pressure areas which strengthen in the winter and weaken in the summer. Polar low - A polar low is a small-scale, short-lived atmospheric low pressure system (depression) that is found over the ocean areas poleward of the main polar front in both the Northern and Southern Hemispheres
Are you ready for...
Our "When Will I Die" Quiz?