Noun
mesopause (plural mesopauses)
(meteorology) In the atmosphere, the boundary between the mesosphere and the thermosphere or ionosphere. It is the atmospheric boundary where the temperature reaches its minimum value.
The upper boundary of the mesosphere is the mesopause, which can be the coldest naturally occurring place on Earth with temperatures below convert. Source: Internet
Compendium of Chemical Terminology Internet edition The altitude of the mesopause for many years was assumed to be at around 85 km (53 mi. Source: Internet
This tends to produce the coldest temperatures in the entire atmosphere just below the mesopause. Source: Internet
To compute dust and smoke effects, they employed a one-dimensional microphysics/radiative-transfer model of the Earth's lower atmosphere (to the mesopause), which defined only the vertical characteristics of the global climate perturbation. Source: Internet