Meteorology

Meteorology

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

Industry: Weather

Add a new term

Contributors in Meteorology

Become a Contributors

Meteorology

Coefficient of thermal expansion

Weather; Meteorology

The relative increase of the volume of a system (or substance) with increasing temperature in an isobaric process. In symbols this coefficient is [[File:ams2001glos-Ce23.gif

1. In U. S. Weather observing practice, the designation for the sky cover when the sky is completely hidden by surface-based obscuring phenomena. It is encoded "X" in aviation weather observations; ...

Turnover frequency

Weather; Meteorology

The highest frequency that can be determined in a Fourier analysis of a discrete sampling of data. If a time series is sampled at interval Δ''t'', this frequency is 1/2Δ''t'' cps.

Oblique visual range

Weather; Meteorology

The greatest distance at which a specified target can be perceived when viewed along a line of sight inclined to the horizontal. One must distinguish upward from downward oblique visual range because ...

Ocean current

Weather; Meteorology

A movement of ocean water characterised by regularity, either of a cyclic nature or, more commonly, as a continuous stream flowing along a definable path. Three general classes, by cause, may be ...

Ocean conveyor belt

Weather; Meteorology

The global recirculation of water masses that determines today's climate. The conveyor belt is driven by the sinking of North Atlantic Deep Water (NADW) through cooling of the surface water in the ...

Occlusion

Weather; Meteorology

1. In meteorology, the process of formation of an occluded front. Some persons restrict the use of this term to the usual case where the process begins at the apex of a wave cyclone; when the process ...