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What is La Niña?

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global weather patterns such as reduced rainfall in some areas and increased rainfall in others.

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Glossary

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A large body of air having similar horizontal temperature and moisture characteristics.