General weather

General weather

Of or pertaining to weather

Industry: Weather

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General weather

Snow level

Weather; General weather

The elevation in mountainous terrain where the precipitation changes from rain to snow, depending on the temperature structure of the associated air mass.

The state of equilibrium in which a parcel of air when displaced has a tendency to move further away from its original position. It is the condition of the atmosphere when spontaneous convection and ...

Snow line

Weather; General weather

The lowest elevation area of a perennial snow field on high terrain, such as a mountain range.

Ceiling light

Weather; General weather

An instrument consisting of a drum and an optical system that projects a narrow vertical beam of light onto a cloud base.

Clear air turbulence

Weather; General weather

Name given to turbulence that may occur in perfectly clear air without any visual in warning in the form of clouds. It is often found in the vicinity of the jet stream where large shears in the ...

Civil twilight

Weather; General weather

The time between the moment of sunset, when the sun's apparent upper edge is just at the horizon, until the centre of the sun is 6 degrees directly below the horizon. See twilight.

Standard surface pressure

Weather; General weather

The measurement of one atmosphere of pressure under standard conditions. It is equivalent to 1,013.25 millibars, 29.92 inches of mercury, 760 millimetres of mercury, 14.7 pounds per square inch, or ...