Dark blue cloudy sky

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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Glossary

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

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

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...