Molecular-scale temperature

The molecular-scale temperature is the defining property of the U.S. Standard Atmosphere, 1962. It is defined by the relationship:

$T_m(z)=\frac{M_0}{M(z)}\cdot T(z)$

T_m(z) is molecular-scale temperature at altitude z;

M₀ is molecular weight of air at sea level;

M(z) is molecular weight of air at altitude z;

T(z) is absolute temperature at altitude z.

This is citation of the Technical Report of USAF from 1967.