What is Circulation?

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...