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 as speed increases. Coriolis eventually balances pressure gradient forces.

Aviation dictionary. 2014.

Look at other dictionaries:

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

  • 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 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 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 level — noun (Meteorology). The lowest level at which the wind becomes geostrophic. In practice, the geostrophic wind level is between 1.2 kilometers (3,928 feet) and 1.6 kilometers (5,238 feet). This wind level probably marks the upper limit of… …   Wiktionary

  • geostrophic wind speed — /dʒiəˈstɒfɪk/ (say jeeuh stofik) noun the speed of the wind calculated from the pressure gradient, the air density, the rotational velocity of the earth, and the latitude, but neglecting the curvature of the path of the air …   Australian English dictionary

  • Wind shear — Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with… …   Wikipedia

  • Wind — For other uses, see Wind (disambiguation). Wind, from the …   Wikipedia

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