Applications of a universal thermal index: physiological equivalent temperature

Abstract The physiological equivalent temperature, PET, is a thermal index derived from the human energy balance. It is well suited to the evaluation of the thermal component of different climates. As well as having a detailed physiological basis, PET is preferable to other thermal indexes like the predicted mean vote because of its unit (°C), which makes results more comprehensible to urban or regional planners, for example, who are not so familiar with modern human-biometeorological terminology. PET results can be presented graphically or as bioclimatic maps. Graphs mostly display the temporal behaviour of PET, whereas spatial distribution is specified in bioclimatic maps. In this article, some applications of PET are discussed. They relate to the evaluation of the urban heat island in cities in both temperate climates and warm climates at high altitude. The thermal component of the microclimate in the trunk space of a deciduous forest is also evaluated by PET. As an example of the spatial distribution of PET, a bioclimatic map for Greece in July (Mediterranean climate) is presented.

[1]  A. Gagge,et al.  Experimental evaluation of standard effective temperature a new biometeorological index of man's thermal discomfort , 1974, International journal of biometeorology.

[2]  P. O. Fanger,et al.  Thermal comfort conditions in the morning and in the evening , 1974, International journal of biometeorology.

[3]  J. Ayoade.  Spatial and seasonal patterns of physiologic comfort in Nigeria , 1978 .

[4]  H. Mayer,et al.  Thermal comfort of man in different urban environments , 1987 .

[5]  Y. J. Huang,et al.  The Potential of Vegetation in Reducing Summer Cooling Loads in Residential Buildings , 1987 .

[6]  The Greek heatwaves of 1987 and 1988 , 1990 .

[7]  C. Balafoutis,et al.  Too hot for comfort: The heatwaves in Greece in 1987 and 1988 , 1990, International journal of biometeorology.

[8]  Gabriel Wackermann,et al.  Nouvelles1 approches thermiques du milieu anthropique : G. Jendritzky, G. Menz, W. Schmidt-Kessen, H. Schinner, Methodik zur räumlichen Bewertung der thermischen Komponente im Bioklima des Menschen - Fortgeschriebenes Klima-Michel-Modell , 1991 .

[9]  Andreas Matzarakis,et al.  The extreme heat wave in Athens in July 1987 from the point of view of human biometeorology , 1991 .

[10]  Yuk Yee Yan,et al.  THE CLO: A UTILITARIAN UNIT TO MEASURE WEATHER/CLIMATE COMFORT , 1996 .

[11]  H. Mayer,et al.  Heat stress in Greece , 1997, International journal of biometeorology.

[12]  Patrick Taffé.  A qualitative response model of thermal comfort , 1997 .

[13]  Statistical analysis of the temperature-humidity complex and time of wetness of a tropical climate in the Yucatán Peninsula in Mexico , 1997 .

[14]  E. Mcpherson,et al.  Simulation of tree shade impacts on residential energy use for space conditioning in Sacramento , 1998 .

[15]  Human bioclimatological questions and solutions in applied urban climatology , 1998 .

[16]  Human-biometeorological assessment of urban microclimates' thermal component , 1998 .

[17]  Joshua Summit,et al.  Urban tree-planting programs — A model for encouraging environmentally protective behavior , 1998 .

[18]  P. Höppe,et al.  The physiological equivalent temperature – a universal index for the biometeorological assessment of the thermal environment , 1999, International journal of biometeorology.