Gravity wave (gravitational wave) A wave disturbance in which buoyancy (or reduced gravity) acts as restoring force on parcels displaced from hydrostatic equilibrium.
gravity - (Or force of gravity.) The force imparted by the earth to a mass that is at rest relative to the earth.
gravity flow"1. In general, water flow in which gravitational forces predominate. 2. In glaciology, glacial movement in which ice flow results from the downslope component of gravitational force.
Gravity - in particular, the force imparted by the earth which tends to draw all bodies in the earth's sphere of influence toward the center of the earth ...
GRAVITY The force of attraction of the earth on an object. The direction is downward relative to the earth, and it decreases with elevation or altitude away from the earth's surface.
Gravity Dam: A concrete structure proportioned so that its own weight provides the major resistance to the forces exerted on it.
Gravity: The mutual attraction between two or more objects.
Greenhouse effect: The heating of the planet that results from the fact that the atmosphere absorbs and emits infrared radiation.
Gravity Wave
A wave created by the action of gravity on density variations in the stratified atmosphere. A generic classification for lee waves, mountains waves, and many other waves that form in the atmosphere.
Graybody ...
GRAVITY- The attraction of two masses to one another. Large masses have higher values of gravitational accelerations than lighter masses.
Gravity wave
A perturbation along a vertical discontinuity, or gradient, which has gravity as its restoring force; for example ocean waves, storm surges.
Surface gravity, the force that holds down an atmosphere, differs significantly among the planets.
Earth's gravity. It is made up of various gases, mainly nitrogen and oxygen
Axis
An imaginary line about which the Earth spins every 24 hours ...
CENTER OF GRAVITY (CG) - The point where the total mass of the pilot and aircraft balances.
CENTER OF LIFT - The aerodynamic point where the force of lift is focused along the wing's chord line.
Study the marine gravity field;
Calculate sea-level variations on both global and local scales.
Also used for short duration mesoscale events such as a strong cold front, gravity wave, squall line, etc., lasting less than 2 hours and producing winds or gusts of 34 knots or greater.
This force on the earth and in the atmosphere due to the rotation about the earth's axis is incorporated with the field of gravitation to form gravity.
Field (Moisture) CapacityThe amount of water held in soil against the pull of gravityField Moisture DeficiencyThe quantity of water, which would be required to restore the soil moisture to field moisture capacity.
Pendulum anemometer A pressure-plate anemometer consisting of a plate which is free to swing about a horizontal axis in its own plane above its center of gravity. The angular deflection of the plate is a function of the wind speed.
Gravity DamIn hydrologic terms, a concrete structure proportioned so that its own weight provides the major resistance to the forces exerted on it.
The term "thickness" is used for gravity and arch dams and "width" for other types of dams.
As we walked up the Old Gravity Road, we were going higher higher up the mountain east of Dunmore. We were now quite a distance from the town. From our vantage point on the mountain we could look out and see for miles to the north, west and south.
terminal velocityThe constant speed obtained by a falling object when the upward drag on the object balances the downward force of gravity.thermalA small, rising parcel of warm air produced when the earth's surface is heated unevenly.
of motion, the form assumed by the vertical component when all Coriolis, earth-curvature, frictional, and vertical-acceleration terms are con- sidered negligible compared with those involving the vertical pressure force and the force of gravity.
Katabatic and Anabatic Winds Katabatic winds (taken from the Greek word "katabatikos," meaning "to go down") are sometimes called "gravity winds," "drainage winds," "mountain winds," or "glacier winds.
Atmosphere: The envelope of gases that surround a planet's surface held by the planet's gravity. Over the Earth, the atmosphere is divided into several layers based on their properties.
The mass of air held close to the earth by gravity. The atmosphere is subdivided into four sections: the troposphere- from the earth's surface to an altitude of about 10 km; the stratosphere - from 10 km to 50 km; ...
All bodies fall towards the earth under the influence of gravity and meet with resistance from the air. Their speed increases as they fall until the air resistance balances the pull of gravity.
They require about 60 percent less concrete than gravity dams, but the increased form work and reinforcement steel required usually offset the savings in concrete.
The force exerted by the interaction of the atmosphere and gravity. Also known as atmospheric pressure.
Weather Glossary Search Page
Weather Glossary Source List ...
PRESSURE: The force exerted by the interaction of the atmosphere and gravity. Also known as atmospheric pressure.
PTWC: Pacific Tsunami Warning Center, located in Honolulu, HI.
PVA: Positive Vorticity Advection.
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.
Most of the atmosphere's molecules are held close to the earth's surface by gravity. Because of this, air pressure decreases rapidly at first, then more slowly at higher levels.
DENSITY The ratio of the mass of a substance to the volume it occupies. In oceanography, it is equivalent to specific gravity and represents the ratio of the weight of a given volume of sea water to that of an equal volume of distilled water at 4.
glacier: a large mass of ice (at least .1km^2) set in motion by the Earth's gravity, which is a result of accumulated snowfall with little snow melt.
Terminal velocity Constant downward-directed speed of a particle within a fluid due to a balance between gravity and fluid resistance.
Thermal inertia Resistance to a change in temperature. ...
Browse Related Terms: Beach Erosion, Capillary Waves, Gravity wave, Heat Wave, Kelvin Waves, LGWV, Pressure Induced Wave, Seiche, Tidal Piling, Tidal Wave, Wave Crest, Wave Period, Wave Spectrum, Whitecap, WV ...
The energy that a body possesses by virtue of its position with respect to other bodies in the field of gravity.
Potential evapotranspiration ((PE))(6) ...
TIDE - The periodic rise and fall of the sea surface due to the pull of the moons (and / or suns) gravity.
The drag is F = C(ρV2/2)A, while the weight is (ρ' - ρ)gv, where v is the volume of the body and g is the acceleration of gravity. ρ' is the density of the body, which for water is 1.
 See also: Surface, Temperature, Water, Atmosphere, Pressure
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