utci: Calculate UTCI (Universal Thermal Climate Index)

In varunayan: Download and Process 'ERA5', IMD, 'HadEX3' and 'CRU TS' Data

Calculate UTCI (Universal Thermal Climate Index)

Description

This function uses the polynomial approximation of Bröde et al. (2012) to calculate UTCI. The approximation uses a multi-node model of human thermoregulation.

Usage

utci(temp_c, wind_speed, dewpoint_c, tmrt = NULL)

Arguments

temp_c	Air temperature in Celsius (-50 to 50)
wind_speed	Wind speed at 10m height in m/s (0.5 to 17)
dewpoint_c	Dewpoint temperature in Celsius (to calculate vapor pressure)
tmrt	Mean radiant temperature in Celsius (optional, the default is temp_c)

Value

UTCI in Celsius

References

Bröde, P., et al. (2012). Deriving the operational procedure for the Universal Thermal Climate Index (UTCI). International Journal of Biometeorology, 56(3), 481-494. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1007/s00484-011-0454-1")}

Examples

utci(30, wind_speed = 2, dewpoint_c = 20)
utci(35, wind_speed = 1, dewpoint_c = 25, tmrt = 45)

varunayan documentation built on Oct. 30, 2026, 1:07 a.m.