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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$\mathrm{Hz}$