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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A very cold high pressure that originates over the Arctic Ocean.
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...