Climatic Change

, Volume 35, Issue 4, pp 501–524 | Cite as

URBANIZATION EFFECTS ON REGIONAL CLIMATE CHANGE IN THE CASE OF FOUR LARGE CITIES OF TURKEY

  • METE TAYANÇ
  • HÜSEYİN TOROS

Abstract

The growing interest in urbanization problems is stimulating detailed studies of their effects on local climate change in the developed world. The absence of such studies in developing countries is restricting many decisions to be made and applied by policymakers. In one developing country, Turkey, results of the study of four urban stations and their neighboring rural sites for the 1951-1990 time period reveal that there is a shift towards the warmer side in the frequency distributions of daily minimum and 21.00 hr temperature difference series. This shift is an indication of urban heat island. The maximum urban heat island intensity trend that is obtained from the temperature differences database agrees well with Oke's (1973) formula for European cities. Seasonal analysis of individual 21.00 hr temperature series suggests that the regional warming is strongest in spring and weakest in autumn and winter. Urban warming is detected to be more or less equally distributed over the year wi th a slight increase in the autumn months. The Mann-Kendall trend test is applied to the temperature difference series, and the urban heat island effect is found to be significant in all urban sites. On the other hand, almost no significant urban effect on precipitation can be detected.

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References

  1. Balling, R. C., Jr.: 1991, 'Impact of Desertification on Regional Global Warming’, Bull. Am. Meteorol. Soc. 72, 232–234.Google Scholar
  2. Changnon, S. A., Semonin, R. G., Auer, A. H., Braham, R. R., and Hales, J. M.: 1981, METROMEX: A Review and Summary, Meteor. Monogr. No. 118, Am. Meteor. Soc., 181 pp.Google Scholar
  3. Changnon, S. A.: 1992, 'Inadvertent Weather Modification in Urban Areas: Lessons for Global Climate Change’, Bull. Am. Meteorol. Soc. 73, 619–627.Google Scholar
  4. Charlson, R. J., Langner, J., and Rodhe, H.: 1990, 'Sulphate Aerosol and Climate’, Nature 348, 22.Google Scholar
  5. Devlet Istatistik Enstitüsü (State Institute of Statistics): 1990, 1990 Nüfus Sayımı, Ankara.Google Scholar
  6. Devlet İstatistik Enstitüsü (State Institute of Statistics): 1992, Çevre İstatistikleri: Hava Kirliliği, 1984–1991, Ankara.Google Scholar
  7. Folland, C. K., Karl, T. R., Nicholls, N., Nyenzi, B. S., Parker, D. E., and Vinnikov, K. Y.: 1992, 'Observed Climate Variability and Change’, in Houghton, J. T., Callander, B. A., and Varney, S. K. (eds.), Climate Change 1992: The Supplementary Report to the IPCC Scientific Assessment, Cambridge University Press, Cambridge, England, pp. 135–170.Google Scholar
  8. Goossens, C. and Berger, A.: 1986, 'Annual and Seasonal Climatic Variations over the Northern Hemisphere and Europe during the Last Century’, Annal. Geophys. 4, 385–399.Google Scholar
  9. Halpert, M. S., Ropelewski, C. F., Karl, T. R., Angell, J. K., Stowe, L. L., Heim, R. R., Miller, A., and Rodenhuis, D. R.: 1993, '1992 brings Return to Moderate Global Temperatures’, EOS Transactions 74,38, 433–437.Google Scholar
  10. Jauregui, E., Godinez, L., and Cruz, F.: 1992, 'Aspects of Heat-Island Development in Guadalajara, Mexico’, Atmos. Environ. 26B, 391–396.Google Scholar
  11. Jones, P. D., Groisman, P. Y., Coughlan, M., Plummer, N., Wang, W-C., and Karl, T. R.: 1990, 'Assessment of Urbanization Effects in Time Series of Surface Air Temperature over Land’, Nature 347, 169–172.Google Scholar
  12. Karaca, M., Tayanç, M., and Toros, H.: 1995, 'The Effects of Urbanization on Climate of İstanbul and Ankara’, Atmos. Environ. 29B, 3411–3421.Google Scholar
  13. Karl, T. R. and Williams, C. N., Jr.: 1987, 'An Approach to Adjusting Climatological Time Series for Discontinuous Inhomogeneities’, J. Clim. Appl. Meteorol. 26, 1745–1761.Google Scholar
  14. Karl, T. R., Diaz, H. F., and Kukla, G.: 1988, 'Urbanization: Its Detection and Effect in the United States Climate Record’, J. Clim. 1, 1099–1122.Google Scholar
  15. Karl, T. R. and Jones, P. D.: 1989, 'Urban Bias in Area-Averaged Surface Air Temperature Trends’, Bull. Am. Meteorol. Soc. 70, 265–270.Google Scholar
  16. Kukla, G., Gavin, J., and Karl, T.R.: 1986, 'Urban Warming’, J. Clim. Appl. Meteorol. 25, 1265–1270.Google Scholar
  17. Landsberg, H. E.: 1981, The Urban Climate, Academic Press, 285 pp.Google Scholar
  18. Mitchell, J. M. et al.: 1966, Climatic Change, WMO Techn. Note 79, TP-100, pp. 79.Google Scholar
  19. Oke, T. R.: 1973, 'City Size and the Urban Heat Island’, Atmos. Environ. 7, 769–779.Google Scholar
  20. Oke, T. R.: 1982, 'The Energetic Basis of the Urban Heat Island’, Q. J. R. Met. Soc. 108, 1–22.Google Scholar
  21. Oke, T. R. and East, C.: 1971, 'The Urban Boundary Layer in Montreal’, Boundary-Layer Meteorol. 1, 411–437.Google Scholar
  22. Nasrallah, H. A. and Balling, R. C.: 1993, 'Spatial and Temporal Analysis of Middle Eastern Temperature Changes’, Clim. Change 25, 153–161.Google Scholar
  23. Sneyers, R.: 1990, On the Statistical Analysis of Series of Observations, WMO Techn. Note No. 143, pp. 192.Google Scholar
  24. Sneyers, R.: 1992, Report on the Informal Planning Meeting on Statistical Procedures for Climate Change Detection, WCDMP-No. 20, WMO-TD/No. 498, 76–81.Google Scholar
  25. Tayanç, M.: 1995, Detecting Climate Change in Turkey: An Investigation of Urban Effects, Ph.D. Thesis, Boğaziçi University, İstanbul, Turkey, 118 pp.Google Scholar
  26. Tayanç, M., Karaca, M., and Yenigün, O.: 1996, 'Annual and Seasonal Air Temperature Trend Patterns of Climate Change and Urbanization Effects in Relation with Air Pollutants in Turkey’, J. Geophys. Res. 102,No. D2, 27 Jan. 1997.Google Scholar
  27. Wigley, T. M. L.: 1989, 'Possible Climate Change due to SO2-Derived Cloud Condensation Nuclei’, Nature 339, 365–367.Google Scholar
  28. Wigley, T. M. L. and Jones, P. D.: 1988, 'Do Large-Area Average Temperature Series have an Urban Warming Bias?’, Clim. Change 12, 313–319.Google Scholar
  29. Wood, F. B.: 1988, 'Comment: On the Need for Validation of the Jones et al. Temperature Trends with Respect to Urban Warming’, Clim. Change 12, 292–312.Google Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • METE TAYANÇ
    • 1
  • HÜSEYİN TOROS
    • 1
  1. 1.Dept. of Environmental Eng., KuyubaşiMarmara UniversityİstanbulTurkey

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