. 2014 Feb 19;58(2):277–308. doi: 10.1007/s00484-013-0729-9

Table 1.

Common notation applied throughout the glossary for the various terms that appear in more than one equation

Symbol	Definition
T _g	Black globe temperature (°C), sometimes referred to as the Vernon globe temperature (°C), or the globe temperature (°C)
v	Wind speed (ms⁻¹)
R	Relative humidity (%)
T _w	Wet bulb temperature (°C)
T _d	Dew point temperature (°C)
T _a	Dry bulb temperature (°C), commonly referred to as the air temperature (°C)
T _mrt	Mean radiant temperature (°C)
VP	Vapour pressure (hPa or kPa, depending upon equation)
M	Metabolic rate (internal heat production) (Wm⁻²)