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Advection of warm moist air over a cooler surface, such as water, causes fog.


1. The transfer of a property of the atmosphere, such as heat, cold, or humidity, by the horizontal movement of an air mass: Today's temperatures were higher due to the advection of warm air into the region.
2. The rate of change of an atmospheric property caused by the horizontal movement of air.
3. The horizontal movement of water, as in an ocean current.

[Latin advectiō, advectiōn-, act of conveying, from advectus, past participle of advehere, to carry to : ad-, ad- + vehere, to carry; see wegh- in Indo-European roots.]

ad·vec′tive adj.


(General Physics) the transference of heat energy in a horizontal stream of gas, esp of air
[C20: from Latin advectiō conveyance, from advehere, from ad- to + vehere to carry]


(ædˈvɛk ʃən)

1. a shift in temperature, humidity, or the like resulting from horizontal movement of an air mass (disting. from convection).
2. the horizontal flow of air, water, etc.
[1905–10; < Latin advectiō=advec-, variant s. of advehere to convey (ad- ad- + vehere to carry) + -tiō -tion]
ad•vec′tive, adj.


the horizontal movement of elements of the atmosphere. Cf. convection. — advective, adj.
See also: Atmosphere
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.advection - (meteorology) the horizontal transfer of heat or other atmospheric propertiesadvection - (meteorology) the horizontal transfer of heat or other atmospheric properties
meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)
temperature change - a process whereby the degree of hotness of a body (or medium) changes
References in periodicals archive ?
The latter advected moister air from Angolan airspace across north west Namibia while the former is the engine that drove the movement of this moisture actross the central plateau and towards the Kalahari.
It has advected moist middle layer air, unstable in depth, into our air-space.
This broad air mass originated in the Congo's atmosphere and was advected into our circulation some weeks ago.
alalunga larvae in the present study were advected shoreward by wind-driven surface currents, and accumulated there by a tendency to remain near the surface, larvae of K.
thermydron zoeae are released in the peripheral zone and may not be entrained in the vent plume, which is usually advected along the rift valleys a few hundred meters above the bottom, but instead may migrate to higher positions in the water column extraneous to the plume (Kim & Mullineaux 1998).
This system did however advected substantial amounts of surface moisture over the far South leading to widespread but light rain from the coastal plain all across the south to as far east as Noordoewer and Keetmanshoop.
The other behavioral limit of rapid, consistently directional swimming behavior would likely alter the fraction of bocaccio encountering shallow habitats versus the fraction being advected offshore.
Less dissolved oxygen diffuses or is advected by bioturbation into the sediment to meet the increased consumption, resupply is exceeded at a shallower level in the sediment profile, and the sulfide-generating stratum moves upward toward the sediment-water interface (Kristiansen et al.
The advected airmass, however, remains too shallow to produce any typical summer thunderstorms of meaningful intensity.
Simulations of transport based on current observations indicated that passive larvae could not consistently be advected the estimated 150 km eastward across the shelf between spawning and nursery grounds in 30 days.
If, in contrast, larvae in Kouchibouguac needed to stay in bottom waters of the river to satisfy a salinity requirement, this could limit the extent to which they were advected out of the estuary.
There is an intermittent sliver of hope with a shallow but active lower middle air moisture range being advected across a good range of our skies: active enough to see healthy convective development but its upward extent restricted by the deep unfavourable airmass directly above.