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A Comparative Study on the Windchill Indices  

Park, Jeon-Hwan (Department of Environment Science, Korea Military Academy)
Han, Uk (Department of Environment Science, Korea Military Academy)
Park, Rae-Seol (Department of Environment Science, Korea Military Academy)
Publication Information
Journal of the Korean earth science society / v.23, no.8, 2002 , pp. 676-682 More about this Journal
Abstract
The concept of sensible temperature in winter is an attempt to quantify the sensation of cold by dry-bulb temperature combined with wind speed. Siple-Passel’s windchill equivalent temperature originated in experiments that are not conformable to various human conditions. Therefore, many investigators have found the flaws which are listed. Steadman’s model is based on the concept of thermal equilibrium and more sound and more representative of human conditions. But no classifications exist for Steadman’s windchill equivalent temperature, yet. The JAG/TI-model which was developed by US and Canada is more accurate, easy to understand and reflects human beings by conducting experiments using human volunteers but didn't take into account solar radiation, wet condition and physical state of the individual. Because of individual differences in people’s age, activity, health, metabolic rate, etc., no experimental evidence exists to suggest whether Siple-Passel’s, Steadman’s and JAG/TI-model’s windchill equivalent temperature is more applicable to the majority of people. Therefore we need the windchill model which is best applicable to Korean Army.
Keywords
sensible temperature; Siple-Passel's windchill equivalent temperature; Steadman's model; JAG/TI-model;
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