Meteorology. the horizontal transport of atmospheric properties (distinguished from convection).
2.
the horizontal flow of air, water, etc.
Origin: 1905–10; < L advectiōn- (s. of advectiō), equiv. to advect(us), ptp. of advehere (ad-ad-+ vec-, var. s. of vehere to carry, bring + -tus ptp. suffix) + -iōn--ion
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.
The rate of change of an atmospheric property caused by the horizontal movement of air.
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.