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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 33, issue 7
Ann. Geophys., 33, 789–804, 2015
https://doi.org/10.5194/angeo-33-789-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 33, 789–804, 2015
https://doi.org/10.5194/angeo-33-789-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 02 Jul 2015

Regular paper | 02 Jul 2015

Investigation of weather anomalies in the low-latitude islands of the Indian Ocean in 1991

A. Réchou and S. Kirkwood

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Short summary
In December 1991, precipitation on the Glorieuses and Mayotte was more than 3 times the climatological mean and mean sunshine duration was less than 1.5h per day. The most likely explanation was low values of the Madden-Julian Oscillation index, which favours high rainfall. El Niño, eastward quasi-biennial oscillation and high solar activity may also have had an indirect effect. No effect of the Pinatubo volcanic eruption is indicated as the precipitation anomalies are only local.
In December 1991, precipitation on the Glorieuses and Mayotte was more than 3 times the...
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