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On the Enhancement of Solar Irradiance Due to the Presence of Clouds at Patras, Greece

  • I. Vamvakas
  • A. Kazantzidis
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

Clouds are considered as the major atmospheric factor that affects the surface solar irradiance (SSI) due to its high spatial temporal and spatial variability, the different types and, consequently, the changes in optical depth. As a result, events ranging from almost total reduction to substantial enhancements of SSI under particular cloud conditions can occur. In this study, the variability of SSI due clouds, with special emphasis on enhancement events, is examined. A digital imaging system, measurements and model calculations are used and the effect of different cloud types (thick or thin) on SSI is examined.

Notes

Acknowledgments

The authors are indebted to CMS-Ing. Dr Josef Schreder for providing the VIS-J1006 camera. The libradtran team is acknowledged for providing the model algorithm. The study was partly funded by FP7-ENERGy project DNICast (dnicast-project.net), Grant Agreement 608623.

References

  1. Geuder N, Affolter R, Eckl M, Kraas B, Wilbert S (2012) Measurement accuracy of twin-sensor rotating shadowband irradiometers (RSI). In: SolarPACES conference 2012, 11–14 September 2012, Marrakesh, MoroccoGoogle Scholar
  2. Mayer B, Kylling A (2005). Technical note: the libRadtran software package for radiative transfer calculations—description and examples of use. Atmos Chem Phys 5:1855–1877Google Scholar
  3. Piacentini RD, Salum GM, Fraidenraich N, Tiba C (2011) Extreme total solar irradiance due to cloud enhancement at sea level of the NE Atlantic coast of Brazil. Renew Energy 36:409–412CrossRefGoogle Scholar
  4. Tapakis R, Charalambides AG (2014) Enhanced values of global irradiance due to the presence of clouds in Eastern Mediterranean. Renew Energy 62:459–467CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  1. 1.Laboratory of Atmospheric Physics, Physics DepartmentUniversity of PatrasPatrasGreece

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