advection

/ædˈvɛkʃən/

IPA: /AE0 D V EH1 K SH AH0 N/

noun
  1. 1

    (earth science) The horizontal movement of a body of atmosphere (or other fluid) along with a concurrent transport of its temperature, humidity etc.

  2. 2

    The transport of a scalar by bulk fluid motion.

Source: https://en.wiktionary.org/wiki/advection