catabatic wind
Definition
Noun: A catabatic wind is a wind that flows downhill, caused by the downward motion of dense, cold air. This occurs because cold air is denser and heavier than warmer air, so it sinks down slopes under the force of gravity.
Usage
This is a technical term used primarily in meteorology, geography, and earth sciences to describe a specific type of wind system. * The catabatic wind from the glacier made the valley floor exceptionally cold. * Meteorologists study catabatic winds to understand local weather patterns in mountainous and polar regions.
Advanced Usage
- Katabatic wind is a common alternative spelling. Both "catabatic" and "katabatic" are used interchangeably, derived from the Greek word , meaning "going downhill".
- The term is often contrasted with its opposite, an anabatic wind, which is an uphill wind caused by warm air rising.
Variants and Related Words
- Katabatic wind (n): An alternative spelling for catabatic wind.
- Gravity wind (n): Another synonym emphasizing the role of gravity in the wind's movement.
- Drainage wind (n): A synonym highlighting how the cold air "drains" down into lower areas like water.
Synonyms
- Downslope wind
- Gravity wind
- Drainage wind
- Fall wind (a specific, strong type of catabatic wind, e.g., the Mistral)
Antonyms
- Anabatic wind: A wind that flows uphill, caused by the upward motion of warm air.
Noun
-
a wind caused by the downward motion of cold air
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