The UTCI-clothing model George Havenith Dusan Fiala Krzysztof Blazejczyk Mark Richards Peter Broede Ingvar Holmer Hannu Rintamaki Yael Benshabat Gerd Jendritzky 2134/9287 https://repository.lboro.ac.uk/articles/journal_contribution/The_UTCI-clothing_model/9346298 The Universal Thermal Climate Index (UTCI) was conceived as a thermal index covering the whole climate range from heat to cold. This would be impossible without considering clothing as the interface between the person (here, the physiological model of thermoregulation) and the environment. It was decided to develop a clothing model for this application in which the following three factors were considered: (1) typical dressing behaviour in different temperatures, as observed in the field, resulting in a model of the distribution of clothing over the different body segments in relation to the ambient temperature, (2) the changes in clothing insulation and vapour resistance caused by wind and body movement, and (3) the change in wind speed in relation to the height above ground. The outcome was a clothing model that defines in detail the effective clothing insulation and vapour resistance for each of the thermo-physiological model's body segments over a wide range of climatic conditions. This paper details this model's conception and documents its definitions. 2012-01-19 14:47:48 Clothing insulation Cold Heat Wind Vapour resistance Design Practice and Management not elsewhere classified Atmospheric Sciences