What is Sublimation?
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water vapor.
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An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
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...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...