Climatology in Mauritius 1983-2005: potential solar radiation modulation by Quasi-Biennial oscillation and El Niño-Southern oscillation
by M. Bessafi; M.R. Lollchund; J.P. Chabriat; J.D. LanSunLuk; P. Jeanty
Progress in Industrial Ecology, An International Journal (PIE), Vol. 11, No. 1, 2017

Abstract: The monthly variability of solar radiation over Mauritius is examined using monthly data from CMSAF (Satellite Application Facility on Climate Monitoring) satellite during the period January 1983-December 2005. It is found that the series analysed have periodicities which can be related to two well-known oscillations (Quasi-Biennal Oscillation - QBO and El Niño Southern Oscillation - ENSO). The results highlight a significant modulation of solar radiation by QBO that indicate the possible modulation of convective activity and cloud cover by this oscillation. A temporal conjunction between El-Nino events and high solar radiation disturbances is shown. Nevertheless, it was difficult to assess a simple correlation between ENSO and solar radiation variability over the studied period. This paper focuses on interannual oscillation and omits the intra-seasonal tropical perturbations (Madden Julian Oscillation, Indian Ocean Dipole, Southern Antarctic Mode). This demonstrates a first approach on the interannual solar radiation variability over Mauritius.

Online publication date: Sun, 20-Aug-2017

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