What is Saturation?

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...