Meteopedia — Weather glossary

Weather encyclopedia with 342 terms

Browse detailed definitions of atmospheric phenomena, cloud types, measurement instruments, regional winds, meteorological scales, climatology and more.

342 Meteopedia 16 categories
All (342) Atmospheric phenomena (50) Instruments (30) Scales and measurements (10) Clouds (36) Wind (34) Precipitation (24) Temperature (15) Cyclones and severe storms (14) Atmospheric optics (16) Meteorological astronomy (5) Climatology (34) Marine meteorology (15) Air quality (10) Agrometeorology (10) Hazards and safety (10) General (29)
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E

Equinox

Moment of the year when day and night are approximately equal in duration, marking the start of spring or autumn.

Meteorological astronomy

P

Photoperiod

Duration of the sunlight period in a day, varying with latitude and season, influencing the biological cycles of plants and animals.

Meteorological astronomy

S

Solar radiation

Electromagnetic energy emitted by the sun reaching the Earth, the engine of the entire climate system.

Meteorological astronomy

Solstice

Moment of the year when the sun reaches its highest or lowest position in the sky, marking the start of summer or winter.

Meteorological astronomy

T

Twilight

Period of diffused light between day and night, when the sun is below the horizon but its light is scattered by the atmosphere. Civil, nautical, and astronomical types are distinguished.

Meteorological astronomy