Mathieu Rouault

TL;DR: Rainfall variability and changes in Southern Africa over the 20th century are examined and their potential links to the global warming discussed in this article, where a study of various datasets documents the observed changes in rainfall features at both daily and seasonal time steps through the last century.

TL;DR: The standardised precipitation index (SPI) as discussed by the authors is an index that allows monitoring the intensity and spatial extension of droughts at different time scales (3, 6, 12 and 24 months).

TL;DR: In this paper, the authors use Eulerian and Lagrangian models and a simple analytical model to study the processes important in spray dispersion and evaporation within the droplet eva-oration layer (DEL).

TL;DR: Rouault et al. as mentioned in this paper showed that the local circulation anomalies act to strengthen the climatological westwards flux of Indian Ocean sourced moisture across low latitude southern Africa and which flow anticyclonically over the warmest SST off the coast thereby weakening the mean southeasterly moisture flux away from Africa over the SE Atlantic.

TL;DR: The increase in wind stress curl is consistent with a poleward shift of westerly wind in the Southern Hemisphere reported by others as discussed by the authors, which causes an increase in the fluxes of salt and heat into the Atlantic Ocean and in the transfer of energy from the ocean to the atmosphere.