Table 2.

Equations used for the calculation of WCT and FFT[23]

Parameters	Equations
Wind chill temperature	$\text{WCT}=13.12+0.621*T-11.37*V^{0.16}+0.3965*T*V^{0.16}$
Facial frostbite time	$\text{FFT}=(-24.5*(0.667*V+4.8)+2111)*{(-4.8-T)}^{-1.668}$

V is the wind speed (in kilometer per hour) and T is the air temperature (in degree Celsius). FFT, facial frostbite time; WCT, wind chill temperature.