geostrophic flow

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• geostrophic flow — currents in the deep ocean that flow along lines of constant pressure or baroclinic surfaces …   Dictionary of ichthyology

• Geostrophic wind — The geostrophic wind is the theoretical wind that would result from an exact balance between the Coriolis force and the pressure gradient force. This condition is called geostrophic balance. The geostrophic wind is directed parallel to isobars… …   Wikipedia

• Geostrophic — A geostrophic current results from the balance between gravitational forces and the Coriolis effect. The gravitational effect is controlled by the tilt of the sea surface and water density is controlled by horizontal changes in temperature and… …   Wikipedia

• geostrophic motion — ▪ atmospheric science       fluid flow in a direction parallel to lines of equal pressure (isobars) in a rotating system, such as the Earth. Such flow is produced by the balance of the Coriolis force (q.v.; caused by the Earth s rotation) and the …   Universalium

• geostrophic wind speed — The speed of a geostrophic wind calculated from the pressure gradient, air density, rotational velocity of the earth, and latitude. The calculation ignores the curvature of the wind’s path. A geostrophic wind is proportional to the pressure… …   Aviation dictionary

• Balanced flow — In atmospheric science, balanced flow is an idealisation of atmospheric motion. The idealisation consists in considering the behaviour of one isolated parcel of air having constant density, its motion on a horizontal plane subject to selected… …   Wikipedia

• quasi-geostrophic approximation — An approximation to the dynamical equations governing atmospheric flow, esp. the vorticity equation, whereby the horizontal wind is replaced by the geostrophic wind in the term representing the vorticity, but not in the term representing the… …   Dictionary of automotive terms

• Coriolis effect — For the psychophysical perception effect, see Coriolis effect (perception). Classical mechanics Newton s Second Law …   Wikipedia

• Ocean dynamics — define and describe the motion of water within the oceans. Ocean temperature and motion fields can be separated into three distinct layers: mixed (surface) layer, upper ocean (above the thermocline), and deep ocean. Ocean dynamics has… …   Wikipedia

• lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …   Universalium

• Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly …   Universalium