Surface Solar Spectrum Characteristics in Tropical Regions with Specific Reference to Rwanda.

Mc Cyulinyana, H. Winkler

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


We describe a model adopted for tropical regions showing the dependence of surface solar radiation reaching the ground level, on atmospheric constituents. The spectral solar shortwave irradiance is calculated from spectral transmittance in a cloudless tropical atmosphere, based on Rayleigh scattering and aerosol extinction factors parameterized according to conditions characteristics of African Great Lakes region. A Monte Carlo simulation is used to calculate the transmittance and reflectance of a homogeneous atmosphere based on Rwanda, which in turn determines the solar radiation reaching the ground level. The results show that this simple model is sufficient for deriving realistic representations of the incident solar radiation on Earth's surface for a range of atmospheric turbidity values.

Original languageEnglish
Pages (from-to)545-551
Number of pages7
JournalEnergy Procedia
Publication statusPublished - 2017
Event9th International Conference on Applied Energy, ICAE 2017 - Cardiff, United Kingdom
Duration: 21 Aug 201724 Aug 2017


  • Monte Carlo Method
  • Rayleigh scattering
  • Rwanda
  • Solar radiation
  • aerosols scattering
  • optical depth
  • transmittance

ASJC Scopus subject areas

  • General Energy


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