The Universal Thermal Climate Index (UTCI) is a bioclimatic index that describes the physiological comfort of the human body under specific meteorological conditions.
It considers not only the ambient temperature but also factors such as humidity, wind, and radiation, all of which significantly impact our physiological response to the environment. UTCI is based on the UTCI-Fiala model (Fiala et al., 2012), which combines a dynamic thermoregulation model with a variable clothing insulation model to estimate the “apparent” temperature. This apparent temperature reflects the conditions needed in a reference environment to produce the same physiological response as the given environment. The data needed for the calculation of UTCI are derived from the ECMWF’s IFS weather forecast model.
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