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Changes in Total Solar Irradiance Measured at Thessaloniki, Greece Since 1993 Associated with Changes in Aerosols

  • A. F. Bais
  • Th. Drosoglou
  • C. Meleti
  • N. Kouremeti
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

Long-term changes in shortwave solar irradiance over Thessaloniki, Greece since 1993 are investigated, focusing on the influence of aerosols in relation to the solar zenith angle (SZA). Linear trends are computed for the entire dataset, for cloud free cases, and for different SZAs, separately for each season. The global upward trend in solar irradiance after 1990 is reconfirmed and is found to depend strongly on SZA, ranging from ~0.1% to +0.6% year−1. Finally, we report signs of a stabilization of solar irradiance at the surface after about 2000.

Keywords

Optical Depth Aerosol Optical Depth Solar Zenith Angle Total Solar Irradiance Single Scattering Albedo 
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.

References

  1. Amiridis V, Balis DS, Kazadzis S et al (2005) Four-year aerosol observations with a Raman lidar at Thessaloniki, Greece, in the framework of European Aerosol Research Lidar Network (EARLINET). J Geophys Res 110:D21203. doi: 21210.21029/22005JD006190 CrossRefGoogle Scholar
  2. Kazadzis S, Bais A, Amiridis V et al (2007) Nine years of UV aerosol optical depth measurements at Thessaloniki, Greece. Atmos Chem Phys 7(8):2091–2101CrossRefGoogle Scholar
  3. Kazadzis S, Kouremeti N, Bais A et al (2009) Aerosol forcing efficiency in the UVA region from spectral solar irradiance measurements at an urban environment. Ann Geophys 27(6):2515–2522CrossRefGoogle Scholar
  4. Koukouli ME, Kazadzis S, Amiridis V et al (2010) Signs of a negative trend in the MODIS aerosol optical depth over the Southern Balkans. Atmos Environ 44(9):1219–1228. doi: 10.1016/j.atmosenv.2009.11.024 CrossRefGoogle Scholar
  5. Liepert B, Tegen I (2002) Multidecadal solar radiation trends in the United States and Germany and direct tropospheric aerosol forcing. J Geophys Res-Atmos 107:4153. doi: 10.1029/2001JD000760 CrossRefGoogle Scholar
  6. Mayer B, Kylling A (2005) Technical note: the libRadtran software package for radiative transfer calculations – description and examples of use. Atmos Chem Phys 5:1855–1877CrossRefGoogle Scholar
  7. Ohvril H, Teral H, Neiman L et al (2009) Global dimming and brightening versus atmospheric column transparency, Europe, 1906–2007. J Geophys Res 114:D00D12. doi: 10.1029/2008JD010644 CrossRefGoogle Scholar
  8. Papadimas CD, Hatzianastassiou N, Mihalopoulos N et al (2008) Assessment of the MODIS Collections C005 and C004 aerosol optical depth products over the Mediterranean basin. Atmos Chem Phys Discuss 8(4):16891–16916. doi: 10.5194/acpd-8-16891-2008 CrossRefGoogle Scholar
  9. Pinker RT, Zhang B, Dutton EG (2005) Do satellites detect trends in surface solar radiation? Science 308(5723):850–854CrossRefGoogle Scholar
  10. Romanou A, Liepert B, Schmidt GA et al (2007) Twentieth century changes in surface solar irradiance in simulations and observations. Geophys Res Lett 34:L05713. doi: 05710.01029/ 02006GL028356 CrossRefGoogle Scholar
  11. Stanhill G, Cohen S (2005) Solar radiation changes in the United States during the twentieth century: evidence from sunshine measurements. J Clim 18:1503–1512CrossRefGoogle Scholar
  12. Vasaras A, Bais AF, Feister U et al (2001) Comparison of two methods for cloud flagging of spectral UV measurements. Atmos Res 57(1):31–42CrossRefGoogle Scholar
  13. Wild M (2009) Global dimming and brightening: a review. J Geophys Res 114:D00D16CrossRefGoogle Scholar
  14. Zerefos CS, Eleftheratos K, Meleti C et al (2009) Solar dimming and brightening over Thessaloniki, Greece, and Beijing, China. Tellus B 61(4):657–665. doi: 10.1111/j.1600-0889.2009.00425.x CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • A. F. Bais
    • 1
  • Th. Drosoglou
    • 1
  • C. Meleti
    • 1
  • N. Kouremeti
    • 1
  1. 1.Physics DepartmentAristotle University of ThessalonikiThessalonikiGreece

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