Meteorology

Meteorology

A database of terms pertaining to the scientific study of the atmosphere.

Contributors in Meteorology

Meteorology

A north wind that blows down the Rhone valley south of Valence, France, and into the Gulf of Lions. It is strong, squally, cold, and dry, the combined result of the basic circulation, a fall wind, ...

Mitigation

Weather; Meteorology

An action to make something less severe. A mitigation plan for a source of pollutants is a plan to reduce the amount of pollutants emitted. A mitigation plan could be voluntary or in response to a ...

Miscible displacement

Weather; Meteorology

In a porous medium, the advance of one fluid into the pore space occupied by another fluid when the two fluids fully dissolve into each other. Compare immiscible displacement.

Misocyclone

Weather; Meteorology

A horizontal vortex with a width of between 40 m and 4 km. It is often used to refer to 1) a vortex within a convective storm with a horizontal scale of less than 4 km, and 2) a near-surface vortex ...

Mixing

Weather; Meteorology

1. The result of irregular fluctuations in fluid motions on all scales from the molecular to large eddies. Gradients of conservative properties such as potential temperature, momentum, humidity, and ...

Mixed-layer venting

Weather; Meteorology

Removal of pollutants out of the top of the atmospheric boundary layer through the mixed-layer capping inversion. Normally pollutants cannot escape through the capping inversion. However, penetrating ...

Mixed-layer depth

Weather; Meteorology

The thickness, ''z'' i, of the mixed layer, defined as the location of a capping temperature inversion or statically stable layer of air. Often associated with, or measured by, a sharp increase of ...