geostrophic force

The force acting on the wind at right angles to its direction of motion, from left to right in the Northern Hemisphere and from right to left in the Southern Hemisphere. See also geostrophic wind.

Aviation dictionary. 2014.

Look at other dictionaries:

  • geostrophic — [jē΄ō sträf′ik] adj. [< GEO + Gr strophē (see STROPHE) + IC] designating or of a force producing deflection as a result of the earth s rotation …   English World dictionary

  • 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 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

  • geostrophic wind — noun a) Meteorology. A wind whose direction and speed are determined by a balance of the horizontal pressure gradient force and the force due to the earths rotation to the left in the northern hemisphere and to the right in the southern… …   Wiktionary

  • geostrophic wind — noun : a wind whose direction and speed are determined by a balance of the pressure gradient force and the force due to the earth s rotation * * * a wind whose velocity and direction are mathematically defined by the balanced relationship of the… …   Useful english dictionary

  • geostrophic — /jee euh strof ik, stroh fik/, adj. of or pertaining to the balance between the Coriolis force and the horizontal pressure force in the atmosphere. [1915 20; GEO + STROPHIC] * * * …   Universalium

  • geostrophic wind — a wind whose velocity and direction are mathematically defined by the balanced relationship of the pressure gradient force and the Coriolis force: conceived as blowing parallel to isobars. Cf. gradient wind. [1915 20] * * * …   Universalium

  • geostrophic wind —   wind blowing parallel to isobars because of deflection of the pressure gradient force by the Coriolis Force …   Geography glossary

  • geostrophic wind — That horizontal wind velocity for which the Coriolis acceleration exactly balances the horizontal pressure or gradient force. Pressure gradient force causes air parcel to accelerate. Coriolis begins deflecting air to the right. Coriolis increases …   Aviation dictionary

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