This condition is called geostrophic equilibrium or geostrophic balance (also known as geostrophy). The geostrophic wind is directed parallel to isobars...
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In atmospheric science, the thermal wind is the vector difference between the geostrophic wind at upper altitudes minus that at lower altitudes in the...
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whose isobars show the direction of geostrophic winds. Geostrophic flows may be barotropic or baroclinic. A geostrophic current may also be thought of as...
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wind on shore during daylight hours. Thermal wind is a meteorological term not referring to an actual wind, but a difference in the geostrophic wind between...
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wind component is the difference between actual and geostrophic wind, which is responsible for air "filling up" cyclones over time. The gradient wind...
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Balanced flow (redirect from Geostrophic balance)
centers is small, and geostrophic flow no longer applies with a useful degree of accuracy. Surface pressure charts supporting gradient-wind conditions Each...
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While geostrophic motion refers to the wind that would result from an exact balance between the Coriolis force and horizontal pressure-gradient forces...
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"free atmosphere", where the wind is approximately geostrophic (parallel to the isobars), while within the PBL the wind is affected by surface drag and...
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This results in the 'actual wind' or 'true wind', including ageostrophic corrections, which add to the geostrophic wind that is characterized by flow...
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Contour line (section Wind)
Isallobaric gradients are important components of the wind as they increase or decrease the geostrophic wind. An isopycnal is a line of constant density. An...
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isobars on an elevation in pressure card. It is also referred as the geostrophic wind. Pressure differences depend, in turn, on the average temperature in...
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further difficulties, because horizontal winds are mostly geostrophic, to a good approximation. Geostrophic winds merely circulate horizontally, and do not...
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atmosphere. In the free atmosphere, geostrophic wind relationships should be used, instead. The equation to estimate the mean wind speed ( u z {\displaystyle u_{z}}...
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of the geostrophic wind speed aloft; while over open water or ice, the reduction is between 10% and 30%. In most basins, maximum sustained winds are used...
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and speed of the geostrophic wind are independent of height. In other words, there is no vertical wind shear of the geostrophic wind. It also implies...
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Over a city or rough terrain, the wind gradient effect could cause a reduction of 40% to 50% of the geostrophic wind speed aloft; while over open water...
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drag coefficient increases with increasing wind speed and is greater for shallower waters. The geostrophic drag coefficient is expressed as: C g = τ U...
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will also be isothermal surfaces, hence (from the thermal wind equation) the geostrophic wind will not vary with depth. Hence, the motions of a rotating...
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February 13, 1979, windstorm (section Wind velocity)
(mililbars) over 8 miles, the geostrophic wind potential easily exceeded 200 knots (roughly translating to about 100 knots in a geostrophic flow over the Earth's...
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ageostrophic flow) is the difference between the actual wind or current and the geostrophic wind or geostrophic current. Since geostrophy is an exact balance between...
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pressure gradient force (known as geostrophic balance). The true wind almost always differs from the geostrophic wind due to the influence of other forces...
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steepens during frontogenesis, the thermal wind becomes imbalanced. To maintain balance, the geostrophic wind aloft and below adjust, such that regions...
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Potential vorticity (section Quasi-geostrophic PV)
streamfunction Ψ {\textstyle \Psi } under the quasi-geostrophic assumption. The geostrophic wind field can then be readily deduced from Ψ {\textstyle...
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hydrologic sciences". Richard Lindzen Edward Norton Lorenz Quasi-geostrophic equations Geostrophic wind Eric Eady Isidoro Orlanski Jule Gregory Charney at the Mathematics...
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that layer. Geopotential height contours can be used to calculate the geostrophic wind, which is faster where the contours are more closely spaced and tangential...
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quantum mechanics Quasigeostrophic, an atmospheric dynamics theory; see Geostrophic wind Quadrature Generator; see quadrature amplitude modulation Nissan QG...
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and the g {\displaystyle g} subscript denotes geostrophic wind. Note that in this case, the geostrophic wind is perpendicular to pressure gradient. This...
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oceans, lakes, and laboratory experiments. Rossby waves, geostrophic currents, and geostrophic winds are examples of inertial waves. Inertial waves are also...
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Adverse pressure gradient Force density Isobar Geopotential height Geostrophic wind Primitive equations Temperature gradient Conner A. Perrine (1967) The...
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Secondary flow (section Wind near ground level)
define an approximate geostrophic wind or gradient wind, balanced flows that are parallel to the isobars. Measurements of wind speed and direction at...
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