Table 1.

Available weather forecast data and required input parameters for thermal indices and body heat balance models. The estimated mean radiant temperature (Tmrt) for all models and indices are based on previous literature [112,113,114,115,116].

	Air Temperature (Ta)	Air Velocity (Va)	Relative Humidity (RH)	Cloud Coverage	Black Globe Temperature (Tg)	Natural Wet Bulb Temperature (Tnwb)	Mean Radiant Temperature (Tmrt)	Operational Range (Ta)	Sources of Data, Models and Indices
Weather forecast	√	√ (10 m)	√	√					ECMWF, NOAA, etc.
WBGT	√	√ (2 m) [68]	√		Estimated [66]	Estimated [66]	Estimated [68]	+10–60 °C (Ta sensor)	ISO 7243:2017
PHS	√	√ (2 m)	√				Estimated [70]	+15–50 °C	ISO 7933:2004
PMV	√ (indoor)	√ (indoor)	√ (indoor)				Estimated (indoor) [90]	+10–30 °C	ISO 7730:2005
IREQ	√	√ (2 m)	√				Estimated [83]	<10 °C	ISO 11079:2007
Wind Chill	√	√ (2 m)						<0 °C	Included in IREQ, Environment Canada [89]