List of symbols

Symbol	Name of the symbol	Unit
$H_p$	pressure scale height	$\mathrm{m}$
$T$	temperature	$\mathrm{°C}$
$a$	speed of Sound	$\mathrm{m/s}$
$g$	gravitational acceleration	$\mathrm{m/s^2}$
$h$	height above sea level	$\mathrm{m}$
$l$	mean free path of air particles	$\mathrm{m}$
$n$	air number density	$\mathrm{m^{-3}}$
$p$	atmospheric pressure	$\mathrm{Pa}$
$v̄$	mean air-particle speed	$\mathrm{m/s}$
$γ$	specific weight	$\mathrm{kg\cdot m^{-2}\cdot s^{-2}}$
$λ$	thermal conductivity	$\mathrm{W\cdot m^{-1}\cdot K^{-1}}$
$μ$	dynamic viscosity	$\mathrm{kg\cdot m^{-1}\cdot s^{-1}}$
$ν$	kinematic viscosity	$\mathrm{m^2\cdot s^{-1}}$
$ρ$	density	$\mathrm{kg/m^3}$
$φ$	latitude	$\mathrm{°}$
$ω$	air-particle collision frequency	$\mathrm{Hz}$