Definition of advection in English:


Line breaks: ad|vec¦tion
Pronunciation: /ədˈvɛkʃ(ə)n


[mass noun]
The transfer of heat or matter by the flow of a fluid, especially horizontally in the atmosphere or the sea.
More example sentences
  • The first is due to initial conductive cooling; in the second, heat advection is controlled by fluid circulation.
  • A spectacular form of heat advection occurs when molten rock, or magma, erupts from a volcano.
  • There are two processes that change: advection (i.e. transport of the water vapour by the air flow) diffusion (i.e. spreading out by molecular effects)


early 20th century: from Latin advectio(n-), from advehere 'bring', from ad- 'to' + vehere 'carry'.



More example sentences
  • However, the general circulation in the Santa Barbara Channel tends to be cyclonic, which often advects cool surface waters eastward along the northern coasts of the Channel Islands.
  • As a result of this, in the northern hemisphere, polar air in the lower troposphere is frequently advected into middle latitudes and, occasionally, even as far as subtropical latitudes.
  • This moisture can be advected to the coast to feed storms and tornadoes.


More example sentences
  • When dissolved solids are carried along with the flowing groundwater, the process is called advective transport or convection.
  • During summer, vertical advective processes appear to be limited to the upper 200 m, where upwelling in the open water leads to a doming structure.
  • Despite the thickness of this relatively stagnant water mass of more than 1000 m, the water age (time since last contact with the atmosphere) is only slightly more than a decade, indicating large-scale advective exchange.

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