advection fog

A type of fog that results from air being cooled following its horizontal movement. This could result from either cold air passing across a warmer sea or water surface while mixing with warm air prevailing there, or the air becoming chilled by coming into contact and mixing with cold air associated with a cold surface.
Cold air is heated up when it comes into contact with warm ground. Heat is transferred from warm water to the cold air by advection.

Aviation dictionary. 2014.

Look at other dictionaries:

  • advection fog — Meteorol. fog caused by the movement of warm, moist air over a cold surface. [1940 45] * * * advection fog, a fog that occurs when a body of relatively warm, moist air moves over a cold surface: »Advection fogs often form in the Newfoundland… …   Useful english dictionary

  • advection fog — /ədˈvɛkʃən fɒg/ (say uhd vekshuhn fog) noun Meteorology a fog formed when a mass of warm moist air moves laterally over a colder ground surface and is cooled to below its dewpoint …   Australian English dictionary

  • advection fog — Meteorol. fog caused by the movement of warm, moist air over a cold surface. [1940 45] * * * …   Universalium

  • advection fog — noun A type of fog caused by the passage of moist air horizontally over a relatively colder surface and the consequent cooling of that air to below its dew point. See Also: advectional …   Wiktionary

  • fog — fog1 fogless, adj. /fog, fawg/, n., v., fogged, fogging. n. 1. a cloudlike mass or layer of minute water droplets or ice crystals near the surface of the earth, appreciably reducing visibility. Cf. ice fog, mist, smog. 2. any darkened state of… …   Universalium

  • Fog — For other uses, see Fog (disambiguation). Part of the Nature series on Weather   Calendar seasons Spring  …   Wikipedia

  • fog —   ground level condensation caused if the dew point is reached in this part of the atmosphere by advection, evaporation, radiation or at a warm front or over ice. Typically, the density of the water droplets needs to be such that visibility is… …   Geography glossary

  • San Francisco fog generation — The famous fog of San Francisco, California is a specific case of sea fog. Sea fog is a specific type of advection fog, which is characterized by the lateral transfer of temperature by wind blowing over cooler water. The water is often cool… …   Wikipedia

  • Moisture advection — is the horizontal transport of water vapor by the wind. Measurement and knowledge of atmospheric water vapor, or moisture , is crucial in the prediction of all weather elements, especially clouds, fog, temperature, humidity thermal comfort… …   Wikipedia

  • Haar (fog) — Haar in meteorology is a coastal fog along certain lands bordering the North Sea; the term is primarily applied in eastern Scotland. [ [http://www.britannia.org/scotland/scotsdictionary/h.shtml Scots Dictionary] ] Research has shown that haar is… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.