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Definition 2024


airmass_source_region

airmass source region

English

Noun

airmass source region (plural airmass source regions)

  1. (physics, meteorology) An extensive area of the Earth's surface over which bodies of air frequently remain for a sufficient time to acquire characteristic temperature and moisture properties imparted by that surface. Air so modified becomes identifiable as a distinct air mass. See airmass.

References

FM 3-6 Field Behavior of NBC Agents.