Climate change and thermal bioclimate in cities: impacts and options for adaptation in Freiburg, Germany
The concept of physiologically equivalent temperature (PET) has been applied to the analysis of thermal bioclimatic conditions in Freiburg, Germany, to show if days with extreme bioclimatic conditions will change and how extreme thermal conditions can be modified by changes in mean radiant temperature and wind speed. The results show that there will be an increase of days with heat stress (PET > 35°C) in the order of 5% (from 9.2% for 1961–1990) and a decrease of days with cold stress (PET < 0°C) from 16.4% to 3.8% per year. The conditions can be modified by measures modifying radiation and wind speed in the order of more than 10% of days per year by reducing global radiation in complex structures or urban areas.
KeywordsThermal bioclimate REMO Freiburg Physiologically equivalent temperature
- IPCC (2007) Climate Change 2007: the scientific basis. Contribution of the Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S, Qin D et al (eds), Cambridge University Press, CambridgeGoogle Scholar
- Jacob D, Bäring L, Christensen OB, Christensen JH, De Castro M, Deque M, Giorgi F, Hagemann S, Hirschi M, Jones R, Kjellström E, Lenderink G, Rockel B, Sanchez E, Schär C, Seneviratne S, Somot S, Van Ulden A, Van Den Hurk B (2007) An inter-comparison of regional climate models for Europe: model performance in present-day climate. Clim Change 81:31–52CrossRefGoogle Scholar
- Matzarakis A (2007) Assessment method for climate and tourism based on daily data. In: Matzarakis A, de Freitas CR, Scott D (eds) Developments in tourism climatology. Commission Climate, Tourism and Recreation, International Society of Biometeorology, pp 52–58Google Scholar
- Matzarakis A, Mayer H (1996) Another kind of environmental stress: thermal stress. WHO Newsletter No. 18: 7–10Google Scholar
- Matzarakis A, Amelung B (2008) Physiologically equivalent temperature as indicator for impacts of climate change on thermal comfort of humans. In: Thomson MC et al (eds), Seasonal forecasts, climatic change and human health. Advances in global change research 30. Springer, Berlin, pp 161–172Google Scholar