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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Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
A cloud of irregular appearance, composed of irregular cloud fragments.
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...