advection,in climatologyatmospheric science, change in a
property of a moving mass of air because the mass moves to a
region where the property has a different value (e.g., the
change in temperature when a warm air mass moves into a cool
region). Attention can be centred on Advection can refer to
either the horizontal or vertical components of the motion, but
the term advection commonly signifies only the horizontal
transport of air.