What is Clear?
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.
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A mass of very cold, dry air that mostly originates over the Arctic Ocean.
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...