Light air
Encyclopedia
A light air is a wind
of force 1 on the Beaufort Scale
, ranging in strength from 1 to 3 knots. Wind of this strength may not be felt on the skin, and leaves vegetation
essentially undisturbed. It induces a drift in columns of smoke
. At sea
, a light air will raise small ripple
s on the surface of the water.
Wind
Wind is the flow of gases on a large scale. On Earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement of gases or charged particles from the sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space...
of force 1 on the Beaufort Scale
Beaufort scale
The Beaufort Scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort Wind Force Scale.-History:...
, ranging in strength from 1 to 3 knots. Wind of this strength may not be felt on the skin, and leaves vegetation
Vegetation
Vegetation is a general term for the plant life of a region; it refers to the ground cover provided by plants. It is a general term, without specific reference to particular taxa, life forms, structure, spatial extent, or any other specific botanical or geographic characteristics. It is broader...
essentially undisturbed. It induces a drift in columns of smoke
Smoke
Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. It is commonly an unwanted by-product of fires , but may also be used for pest...
. At sea
Sea
A sea generally refers to a large body of salt water, but the term is used in other contexts as well. Most commonly, it means a large expanse of saline water connected with an ocean, and is commonly used as a synonym for ocean...
, a light air will raise small ripple
Ripple
Ripple is the more common name for a capillary wave in fluid dynamics.Ripple can also refer to:* Ripple , a non-profit click-to-donate internet site and search engine* Ripple effect, the socio-educational phenomenon...
s on the surface of the water.