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Thermal sensation and climate: a comparison of UTCI and PET thresholds in different climates

Pantavou, Katerina, Lykoudis, Spyridon, Nikolopoulou, Marialena, Tsiros, Ioannis (2018) Thermal sensation and climate: a comparison of UTCI and PET thresholds in different climates. International Journal of Biometeorololgy, 62 (9). pp. 1695-1708. ISSN 0020-7128. (doi:10.1007/s00484-018-1569-4) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:68868)

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The influence of physiological acclimatization and psychological adaptation on thermal perception is well documented and has revealed the importance of thermal experience and expectation in the evaluation of environmental stimuli. Seasonal patterns of thermal perception have been studied, and calibrated thermal indices’ scales have been proposed to obtainmeaningful interpretations of thermal sensation indices in different climate regions. The current work attempts to quantify the contribution of climate to the longterm thermal adaptation by examining the relationship between climate normal annual air temperature (1971–2000) and such climate-calibrated thermal indices’ assessment scales. The thermal sensation ranges of two thermal indices, the Universal Thermal Climate Index (UTCI) and the Physiological Equivalent Temperature Index (PET), were calibrated for three warm temperate climate contexts (Cfa, Cfb, Csa), against the subjective evaluation of the thermal environment indicated by interviewees during field surveys conducted at seven European cities: Athens (GR), Thessaloniki (GR),Milan (IT), Fribourg (CH),Kassel (DE), Cambridge (UK), and Sheffield (UK), under the same research protocol. Then, calibrated scales for other climate contexts were added from the literature,

and the relationship between the respective scales’ thresholds and climate normal annual air temperature was examined. To maintain the maximum possible comparability, three methods were applied for the calibration, namely linear, ordinal, and probit regression. The results indicated that the calibrated UTCI and PET thresholds increase with the climate normal annual air temperature of the survey city. To investigate further climates, we also included in the analysis results of previous studies presenting only thresholds for neutral thermal sensation. The average increase of the respective thresholds in the case of neutral thermal sensation was about 0.6 °C for each 1 °C increase of the normal annual air temperature for both indices, statistically significant only for PET though.

Item Type: Article
DOI/Identification number: 10.1007/s00484-018-1569-4
Uncontrolled keywords: Climate, Thermal sensation, Assessment scales, PET, UTCI
Subjects: G Geography. Anthropology. Recreation
Divisions: Divisions > Division of Arts and Humanities > Kent School of Architecture and Planning
Depositing User: Marialena Nikolopoulou
Date Deposited: 30 Aug 2018 21:44 UTC
Last Modified: 04 Mar 2024 15:20 UTC
Resource URI: (The current URI for this page, for reference purposes)

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Nikolopoulou, Marialena.

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