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Pressure Gradient

Meteorology Pressure falling rapidlyPressure gradient force

Pressure Gradient Force directed from high to low pressure
The change in pressure measured across a given distance is called a "pressure gradient".

 


The pressure gradient force acts at right angles to isobars in the direction from high to low pressure. The greater the pressure difference over a given horizontal distance, the greater the force and hence the stronger the wind.

Pressure Gradient-The amount of pressure change occurring over a given distance.
Radiosonde-A lightweight package of weather instruments fitted with a radio transmitter and carried up into the atmosphere by a balloon.

Pressure Gradient - the change in pressure over a given distance at a given time
Pressure Tendency - the change in pressure over a given time at a given location
Prevailing Westerlies - the westerly winds that dominant in middle latitudes ...

Pressure gradient
The pressure change over a fixed distance at a fixed altitude. The larger the pressure gradient the stronger the winds.
Prevailing wind ...

PRESSURE GRADIENT The amount of pressure change that occurs over a fixed distance at a fixed altitude.
PRESSURE JUMP A sudden increase in the observed atmospheric pressure or station pressure.

pressure gradient - (In meteorology, also called barometric gradient.) The rate of decrease (gradient) of pressure in space at a fixed time. The term is sometimes loosely used to denote simply the magnitude of the gradient of the pressure field.

Pressure Gradient Force A three-dimensional force vector operating in the atmosphere that accelerates air parcels away from regions of high pressure and toward regions of low pressure in response to an air pressure gradient.

Pressure gradient force A force operating in the atmosphere that accelerates air parcels away from regions of high pressure toward regions of low pressure in response to an air pressure gradient.

pressure gradient—The rate of decrease of pressure per unit distance at a fixed time.
pressure jump—A sudden, significant increase in station pressure.
pressure tendency—See barometric tendency.

Pressure Gradient- The rate of decrease of pressure with distance at a fixed level.
Pressure Gradient Force- Force acting on air that causes it to move from areas of higher pressure to areas of lower pressure.

Pressure Gradient Force- Force acting on air that causes it to move from areas of higher pressure to areas of lower pressure.
Prevailing Wind- The direction from which the wind blows most frequently in any location.

Pressure gradient wind
The wind that results from the pressure gradient. The greater the pressure gradient between two points, the greater the wind.

The winds blow through low passes where major river valleys issue onto the seaways when strong east-west pressure gradients exist between the coast and the inland areas, with low pressure over the ocean.

within the fluid; and forced convection, motion induced by mechanical forces such as deflection by a large-scale surface irregularity, turbulent flow caused by friction at the boundary of a fluid, or motion caused by any applied pressure gradient.

Meteorologists refer to the force that starts the wind flowing as the "pressure gradient force." High and low pressure are relative. There's no set number that divides high and low pressure.

Pressure Gradient: The closer the isobars the faster the wind speed. Called close/tight or steep pressure gradient. The wider apart the isobars the slower the wind speed. Called: A "Weak" Pressure Gardient.
PRESRR: Pressure Rising Rapidly...

The central pressure determines the maximum pressure gradient, which must increase inwards to balance the increasing centrifugal force.

geostrophic wind (wind that is a result of the balance between Coriolis force and pressure gradient force; flows parallel to isobars and approximates the flow above the atmospheric boundary layer in the midlatitudes if frictional effects are low) ...

Typically the pressure gradient increases (central pressure drops), winds strengthen, and clouds become more pronounced during this phase.

Where there is imbalance between the pressure gradient and Coriolis forces.
When the pressure gradient force is greater than the Coriolis force, the flow takes on a curved path around low pressure.

The pressure gradient is very tight after the front passes by and the winds can reach speeds of 50-60 mph.

This low is compact and develops a tight pressure gradient with the maximum sustained low-level winds, which can reach hurricane intensity, typically located less than 30 miles from the center.

Browse Related Terms: Atmospheric pressure, Barogram, PRES, Pressure, Pressure Gage, Pressure Gradient, Pressure Gradient Force, Pressure head, Pressure Jump, Saturation Vapor Pressure, Vapor Pressure ...

COL - A saddle like reqion between two low pressure systems where a shallow pressure gradient exists. This region may also be found when high pressure systems around the two low pressure areas are situated on each side of the col region.

Hydrostatic Equilibrium - The balance maintained between the force of gravity and the vertical pressure gradient that does not allow air to escape to space.

Hygrometer - An instrument designed to measure relative humidity.

Land and Sea Breezes: Local winds caused by the unequal warming and cooling of adjacent water and land surfaces under the influence of solar radiation (during the day) and land radiation (during the night), which produce a pressure gradient (ratio of ...

It is a broad area of low pressure where both the Coriolis force and the low-level pressure gradient are weak, occasionally allowing tropical disturbances to form.

A wind that is affected by coriolis force, blows parallel to isobars and whose strength is related to the pressure gradient (i.e., spacing of the isobars).
Geosynchronous ...

A theoretical horizontal wind blowing in a straight path, parallel to the isobars or contours, at a constant speed. The geostrophic wind results when the Coriolis force exactly balances the horizontal pressure gradient force.
Glaciated cloud(6) ...

Because atmospheric pressure decreases more quickly with height in cold/polar air than warm/sub-tropical air, there arises a pressure differential, which gives rise to intense pressure gradients at altitude, and hence the very strong winds observed.

The geostrophic wind results when the Coriolis force exactly balances the horizontal pressure gradient force.

SeicheA standing wave oscillation of water in large lakes usually created by strong winds and/or a large barometric pressure gradient.SELA watch cancellation statement issued to terminate a watch before its original expiration time.

See also: Gradient, Pressure, Air, Force, High