Theoretical and Applied Climatology

, Volume 115, Issue 1–2, pp 333–340 | Cite as

Thermal bioclimate in idealized urban street canyons in Campinas, Brazil

  • Loyde V. Abreu-Harbich
  • Lucila C. Labaki
  • Andreas Matzarakis
Original Paper

Abstract

Among several urban design parameters, the height-to-width ratio (H/W) and orientation are important parameters strongly affecting thermal conditions in cities. This paper quantifies changes in thermal comfort due to typical urban canyon configurations in Campinas, Brazil, and presents urban guidelines concerning H/W ratios and green spaces to adapt urban climate change. The study focuses on thermal comfort issues of humans in urban areas and performs evaluation in terms of physiologically equivalent temperature (PET), based on long-term data. Meteorological data of air temperature, relative humidity, wind speed and solar radiation over a 7-year period (2003–2010) were used. A 3D street canyon model was designed with RayMan Pro software to simulate the influence of urban configuration on urban thermal climate. The following configurations and setups were used. The model canyon was 500 m in length, with widths 9, 21, and 44 m. Its height varied in steps of 2.5 m, from 5 to 40 m. The canyon could be rotated in steps of 15°. The results show that urban design parameters such as width, height, and orientation modify thermal conditions within street canyons. A northeast–southwest orientation can reduce PET during daytime more than other scenarios. Forestry management and green areas are recommended to promote shade on pedestrian areas and on façades, and to improve bioclimate thermal stress, in particular for H/W ratio less than 0.5. The method and results can be applied by architects and urban planners interested in developing responsive guidelines for urban climate issues.

References

  1. Ali-Toudert F, Mayer H (2007) Effects of asymmetry, galleries, overhanging façades and vegetation on thermal comfort in urban street canyons. Sol Energy 81(6):742–754. doi:10.1016/j.solener.2006.10.007 CrossRefGoogle Scholar
  2. Dacanal C, Labaki LC (2011) Microclimate in urban forest fragments. In: Bodart M, Evrard A (eds) PLEA 2011: architecture & sustainable development, 1st edn. Univ. de Louvain, Louvain-la-Neuve, pp 195–200Google Scholar
  3. Emmanuel R, Rosenlund H, Johansson E (2007) Urban shading—a design option for the tropics? A study in Colombo, Sri Lanka. Int J Climatol 27(14):1995–2004. doi:10.1002/joc.1609 CrossRefGoogle Scholar
  4. Fröhlich D, Matzarakis A (2013) Modeling of changes in thermal bioclimate: examples based on urban spaces in Freiburg, Germany. Theor Appl Climatol 111(3-4):547–558. doi:10.1007/s00704-012-0678-y CrossRefGoogle Scholar
  5. Givoni B (1989) Urban Design in Different Climates. WMO Technical Report 346 Google Scholar
  6. Herrmann J, Matzarakis A (2012) Mean radiant temperature in idealized urban canyons—examples from Freiburg, Germany. Int J Biometeorol 56(1):199–203. doi:10.1007/s00484-010-0394-1 CrossRefGoogle Scholar
  7. Höppe P (1993) Heat balance modelling. Experientia 49:741–746CrossRefGoogle Scholar
  8. Kakon AN, Nobuo M, Kojima S, Yoko T (2010) Assessment of thermal comfort in respect to building height in a high-density city in the tropics. Am J Eng Appl Sci 3(3):545–551CrossRefGoogle Scholar
  9. Kottek M, Grieser J, Beck C, Rudolf B, Rubel F (2006) World map of the Koppen–Geiger climate classification updated. Meteorol Z 15(3):259–263CrossRefGoogle Scholar
  10. Lin T, Matzarakis A (2008a) Tourism climate and thermal comfort in sun moon lake. Taiwan Int J Biometeorol 52(4):281–290. doi:10.1007/s00484-007-0122-7 CrossRefGoogle Scholar
  11. Lin T, Matzarakis A (2008b) Climate-tourism analysis and application of tourists flow forecast in Taiwan. Proceedings 18th International Congress on Biometeorology, Tokio, pp 22–26, September 2008, 1–4Google Scholar
  12. Lin T, Matzarakis A, Hwang R (2010) Shading effect on long-term outdoor thermal comfort. Build Envir 45:213–221. doi:10.1016/j.buildenv.2009.02.004 CrossRefGoogle Scholar
  13. Matzarakis A (2007) Assessment method for climate and tourism based on daily data. In: A. Matzarakis CR, de Freitas D. Scott (Eds.), Developments in Tourism Climatology, pp 52–58Google Scholar
  14. Matzarakis A, Mayer H (1996) Another kind of environmental stress: thermal stress. WHO-Newsl 18:7–10Google Scholar
  15. Matzarakis A, Mayer H, Iziomon MG (1999) Applications of a universal thermal index: physiological equivalent temperature. Int J Biometeorol 43(2):76–84. doi:10.1007/s004840050119 CrossRefGoogle Scholar
  16. Matzarakis A, Rutz F, Mayer H (2007) Modelling radiation fluxes in simple and complex environments—application of the RayMan model. Int J Biometeorol 51(4):323–334. doi:10.1007/s00484-006-0061-8 CrossRefGoogle Scholar
  17. Matzarakis A, Rutz F, Mayer H (2010a) Modelling radiation fluxes in simple and complex environments: basics of the RayMan model. Int J Biometeorol 54(2):131–139. doi:10.1007/s00484-009-0261-0 CrossRefGoogle Scholar
  18. Matzarakis A, Schneevoigt T, Matuschek O, Endler C (2010b) Transfer of climate information for tourism and recreation—the CTIS software. In: Matzarakis, A., Mayer, H., Chmielewski, F.-M. (Eds.), Proceedings of the 7th Conference on Biometeorology. Ber. Meteorol. Inst. Univ. Freiburg No. 20, 392–397Google Scholar
  19. Mayer H (1993) Urban bioclimatology. Experientia 49:957–963CrossRefGoogle Scholar
  20. Mayer H, Höppe P (1987) Thermal comfort of man in different urban environments. Theor Appl Climatol 38:43–49. doi:10.1007/BF00866252 CrossRefGoogle Scholar
  21. Mills G (1993) Simulation of the energy budget of an urban canyon I. Model structure and sensitivity test. Atmos Envir 27:157–170Google Scholar
  22. Mills G (1999) Urban climatology and urban design. ICB-ICUC'99: 15th International Congress of Biometeorology and the International Conference on Urban Climatology, Sydney, Australia, pp 541–544Google Scholar
  23. Ministério do Planejamento, Orçamento e Gestão Brasil (2010). IBGE. http://www.ibge.gov.br/home/. Accessed 12 Jun 2011
  24. Mitica Neto H (2008) Urban growth in Campinas: Changes in the urban fabric around Dom Pedro I highway. Thesis, University of São Paulo, School of Architecture and Urban Design, pp 360Google Scholar
  25. Monteiro CAF (1973) A dinâmica climática e as chuvas no estado de São Paulo: Estudo geográfico sob forma de atlas. Thesis, University of São Paulo, Geography Institute, pp 154Google Scholar
  26. Nakamura Y, Oke T (1988) Wind, temperature and stability conditions in an east–west oriented urban canyon. Atmos Envir 22:2691–2700CrossRefGoogle Scholar
  27. Nunes LH (1997) Distribuição espaço-temporal da pluviosidade no Estado de São Paulo: Variabilidade, tendências, processos intervenientes. Thesis, University of São Paulo, Geography Institute, pp 192Google Scholar
  28. Nunez M, Oke TR (1977) The energy balance of an urban canyon. J Appl Meteorol 16:11–19CrossRefGoogle Scholar
  29. Oke TR (1973) City size and the urban heat island. Atmos Envir 7(8):769–779CrossRefGoogle Scholar
  30. Oke TR (1982) The energetic basis of urban heat island. J Royal Meteorol Soc 108(455):1–24. doi:10.1002/qj.49710845502 Google Scholar
  31. Pezzuto CC (2007) Evaluation of the thermal environment in the open urban spaces. The case of Campinas, Brazil. Thesis, State University of Campinas: School of Civil Engineering, Architecture and Urban Design, pp 182Google Scholar
  32. Santamouris M, Papanikolaou N, Koronakis I, Livada I, Asimakopoulos D (1999) Thermal and air flow characteristics in a deep pedestrian canyon under hot weather conditions. Atmos Envir 33:4503–4521CrossRefGoogle Scholar
  33. VDI (1998) Environmental meteorology, methods for the human-biometeorological evaluation of climate and air quality for the urban and regional planning at regional level. Part I. Climate. VDI/DIN-Handbuch Reinhaltung der Luft. Band 1b, DüsseldorfGoogle Scholar
  34. Yoshida A, Tominaga K, Watani S (1990) Field measurements on energy balance of an urban canyon in the summer season. Energy and Buildings 16:417–423CrossRefGoogle Scholar
  35. Zaninovic K, Matzarakis A (2009) The biometeorological leaflet as a means conveying climatological information to tourists and the tourism industry. Int J Biometeor 53:369–374. doi:10.1007/s00484-009-0219-2 CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • Loyde V. Abreu-Harbich
    • 1
    • 2
    • 4
  • Lucila C. Labaki
    • 2
    • 4
  • Andreas Matzarakis
    • 3
  1. 1.School of Architecture and Urban DesignCatholic University of SantosSantosBrazil
  2. 2.School of Civil Engineering, Architecture and Urban DesignState University of CampinasCampinasBrazil
  3. 3.Chair of Meteorology and ClimatologyAlbert-Ludwigs-University FreiburgFreiburgGermany
  4. 4.CampinasBrazil

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