Climatology in Mauritius 1983-2005: potential solar radiation modulation by Quasi-Biennial oscillation and El Niño-Southern oscillation

International audience 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...

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Bibliographic Details
Published in:Progress in Industrial Ecology, An International Journal
Main Authors: Bessafi, Miloud, Lollchund, M.R., Chabriat, Jean-Pierre, Lan Sun Luk, Jean-Daniel, Jeanty, Patrick
Other Authors: Laboratoire d'Energétique, d'Electronique et Procédés (LE2P), Université de La Réunion (UR), University of Mauritius
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2017
Subjects:
QBO
solar radiation
climate change
interannual
El Niño-Southern oscillation
ENSO
Quasi-Biennal oscillation
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology
[PHYS]Physics [physics]
Antarctic
Indian
Antarc*
Online Access:https://hal.univ-reunion.fr/hal-01626579
https://hal.univ-reunion.fr/hal-01626579/document
https://hal.univ-reunion.fr/hal-01626579/file/PIE%2011%281%29%20Paper%208_hal.pdf
https://doi.org/10.1504/PIE.2017.086160
Description
Summary:International audience 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.

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