Meteorology

Meteorology

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

Contributors in Meteorology

Meteorology

The representation of temperature, moisture, pressure, and wind variations on horizontal scales of 10–100 km. The analysis seeks to define mesoscale features of the observed temperature, pressure, ...

meridional wind

Weather; Meteorology

The wind or wind component along the local meridian, as distinguished from the zonal wind. In a horizontal coordinate system fixed locally with the ''x'' axis directed eastward and the ''y'' axis ...

meridional index

Weather; Meteorology

A measure of the component of air motion along meridians, averaged, without regard to sign, around a given latitude circle. When averaged further over five-day periods, the meridional index in the ...

meridional front

Weather; Meteorology

A front in the South Pacific separating successive migratory subtropical anticyclones. Such fronts are essentially in the form of great arcs with meridians of longitude as chords; they have the ...

meridional flow

Weather; Meteorology

A type of atmospheric circulation pattern in which the meridional (north and south) component of motion is unusually pronounced. The accompanying zonal component is usually weaker than normal. ...

meridional exchange

Weather; Meteorology

Exchange by the wind of properties of air, such as heat, momentum, and moisture, between a northern zone and a southern zone in the atmosphere.

meridional circulation

Weather; Meteorology

1. An atmospheric circulation in a vertical plane oriented along a meridian. It consists, therefore, of the vertical and the meridional (north or south) components of motion only. See meridional ...