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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Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...