The Discomfort-Index in Thessaloniki, Greece
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Many investigators have tried to express the influence of climatic parameters upon man. In this paper, for the same purpose, we make use of the “Discomfort Index” (DI). [DI = 0.4 (Ta + Twb) + 4.8] as it has been introduced by THOM (1959). We study the mean diurnal variation of DI on the base of mean hourly values of Ta and Twb for the 1950–75 period in Thessaloniki-Greece and for the warm season only (May–September). The frequencies of hourly and daily values of DI are studied and mean and extreme monthly values are also given. Regarding the need of the use of climatization in Thessaloniki (DI >24) we found quite increased percentages only for the months: July and August.
KeywordsPlant Physiology Diurnal Variation Warm Season Environmental Medicine Climatic Parameter
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