Articles | Volume 20, issue 9
Hydrol. Earth Syst. Sci., 20, 3789–3798, 2016
https://doi.org/10.5194/hess-20-3789-2016
Hydrol. Earth Syst. Sci., 20, 3789–3798, 2016
https://doi.org/10.5194/hess-20-3789-2016

Research article 13 Sep 2016

Research article | 13 Sep 2016

Synchrony of trend shifts in Sahel boreal summer rainfall and global oceanic evaporation, 1950–2012

Alima Diawara et al.

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Cited articles

Annamalai, H., Liu, P., and Xie, S. P.: Southwest Indian Ocean SST Variability Its Local Effect and Remote Influence on Asian Monsoons, J. Climate, 18, 4150–4167, https://doi.org/10.1175/JCLI3533.1, 2005.
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Ashok, K., Guan, Z., and Yamagata, T.: Influence of the Indian Ocean Dipole on the Australian winter rainfall, Geophys. Res. Lett., 30, 1821–1825, https://doi.org/10.1029/2003GL017926, 2003.
Bader, J. and Latif, M.: The impact of decadal-scale Indian Ocean sea surface temperature anomalies on Sahelian rainfall and the North Atlantic Oscillation, Geophys. Res. Lett., 30, 2169–2172, https://doi.org/10.1029/2003GL018426, 2003.
Baines, P. G. and Folland, C. K.: Evidence for rapid global climate shift across the late 1960s, J. Climate, 20, 2721–2744, https://doi.org/10.1175/JCLI4177.1, 2007.
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The western African Sahel region has been one of the most important research areas for studying climatic variability due to its fragile climate conditions. Between 1950 and 2012, summer rainfall in the Sahel changed from a multi-decadal decreasing trend to an increasing trend (positive trend shift) in the mid-1980s. We found that this trend shift was synchronous with similar trend shifts in global oceanic evaporation and in land precipitation on all continents except the Americas.