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Open Geosciences

formerly Central European Journal of Geosciences

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The most problematic variable in the course of human-biometeorological comfort assessment — the mean radiant temperature

Noémi Kántor / János Unger
Published Online: 2011-03-27 | DOI: https://doi.org/10.2478/s13533-011-0010-x


This paper gives a review on the topic of the mean radiant temperature Tmrt, the most important parameter influencing outdoor thermal comfort during sunny conditions. Tmrt summarizes all short wave and long wave radiation fluxes reaching the human body, which can be very complex (variable in spatial and also in temporal manner) in urban settings. Thermal comfort researchers and urban planners need easy and sound methodological approaches to assess Tmrt. After the basics of the Tmrt calculation some of the methods suitable for obtaining Tmrt also in urban environments will be presented.. Two of the discussed methods are based on instruments which measure the radiation fluxes integral (globe thermometer, pyranometer-pyrgeometer combination), and three of the methods are based on modelling the radiation environment with PC software (RayMan, ENVI-met and SOLWEIG).

Keywords: mean radiant temperature; definition; calculation; measurement; modelling

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About the article

Published Online: 2011-03-27

Published in Print: 2011-03-01

Citation Information: Open Geosciences, Volume 3, Issue 1, Pages 90–100, ISSN (Online) 2391-5447, DOI: https://doi.org/10.2478/s13533-011-0010-x.

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© 2011 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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