Advertisement

Theoretical and Applied Climatology

, Volume 58, Issue 1–2, pp 71–77 | Cite as

Variations and trends in global solar radiation for Turkey

  • B. Aksoy
Article

Summary

Since measured solar radiation data in Turkey have rather high random errors, sunshine duration data covering the period from 1960 through 1994 from 34 stations in Turkey were taken to derive estimates of monthly mean global solar radiation by a quadratic correlation. The least square linear regression method was applied for trend analysis. Significant negative trends of the annual means were observed with 71 percent of the stations A 3.44 percent decrease in global solar radiation was observed over the last 35 years in Turkey. The decrease in solar radiation is an indication of increased air pollution, as statistical parameters show that Turkey is rapidly expanding economically, and thus air quality has deteriorated correspondingly.

Keywords

Waste Water Turkey Solar Radiation Random Error Regression Method 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Aksoy, B., 1996: Estimated monthly average global radiation for Turkey and its comparison with observation. Renewable Energy. (in press)Google Scholar
  2. Angstrom, A., 1924: Solar and terrestrial radiation.Quart. J. R. Meteor. Soc. 50, 121.Google Scholar
  3. Aguado, E., 1990: Effect of advected pollutants on solar radiation attenuation: Mojave Desert, California.Atmos. Environ. 24(1, 153.Google Scholar
  4. Chao, L. L., 1974:Statistics Methods and Analyses. Tokyo: Tosho Printing, 352 pp.Google Scholar
  5. DIE, 1993: 1990 Census of Population. Publication No. 1616, Ankara: State Institute of Statistics Prime Ministry Republic of Turkey.Google Scholar
  6. DIE, 1994: Statistical Indicators. Publication No. 1682, Ankara: State Institute of Statistics Prime Ministry Republic of Turkey.Google Scholar
  7. Duffie, J. A., Beckman, W. A., 1974:Solar Energy Thermal Processes. New York: Wiley.Google Scholar
  8. Duffie, J. A., Beckman, W. A., 1980:Solar Engineering of Thermal Processes. New York: Wiley.Google Scholar
  9. Gueymard, C., Jindra, P., Estrada-Cajical, V., 1995: Letter to the Editor.Solar Energy 54, 357.CrossRefGoogle Scholar
  10. IPCC, 1994: Radiative forcing of climate change, The 1994 report of the scientific assessment working group of IPCC, Summary for policymakers. WMO/IPCC/UNEP.Google Scholar
  11. Ögelman, H., Ecevit, A., Taşdemiroğlu, E., 1984: A new method for estimating solar radiation.Solar Energy 33, 619.CrossRefGoogle Scholar
  12. Ryan, B. F., Joiner, B. L., Ryan, Jr. T. A., 1985:Minitab 2nd edn., Boston: PWS-Kent Publishing.Google Scholar
  13. Sneyers, R., 1990: On the Statistical Analysis of Series of Observations, WMO Technical Note No. 143, Geneva: World Meteorological Organization.Google Scholar
  14. Türkeş, M., Sümer, U., Kiliç, G., 1995: Variations and trends in annual mean air temperatures in Turkey with respect to climatic variability.Int. J. Climatol. 15, 557–569.Google Scholar
  15. Türkeş, M., Sümer, U., Kiliç, G., 1996: Observed changes in maximum and minimum temperatures in Turkey.Int. J. Climatol. 16, 463–477.CrossRefGoogle Scholar
  16. Türkeş, M., 1996a: Trends and fluctuations in annual and seasonal rainfall data in Turkey. Proceedings of the Regional Workshop on Climate Variability and Climate Change Vulnerability and Adaptation, Praha: 11–16 September 1995. (in press)Google Scholar
  17. Türkeş, M., 1996b: Spatial and temporal analysis of annual rainfall variations in Turkey.Int. J. Climatol. (in press)Google Scholar
  18. WMO, 1981: Meteorological aspects of the utilization of solar radiation as an energy source. WMO Technical Note No. 172, Geneva: World Meteorological Organization.Google Scholar

Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  • B. Aksoy
    • 1
  1. 1.Department of ResearchTurkish State Meteorological ServiceAnkaraTurkey

Personalised recommendations