PUBLICATIONS

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Dust induced changes on the West African summer monsoon features

E. T. N’Datchoh, I. Diallo, A. Konaré, S. Silué, K. O. Ogunjobi, A. Diedhioua and M. Doumbia

Dust generation and transportation from North Africa are thought to modulate the West African Monsoon (WAM) features. In this study, we investigated the relationship between the Saharan Air Layer located above Atlantic Ocean (OSAL) and WAM features, including Monsoon flow,…

Causes of the uncertainty in projections of tropical terrestrial rainfall change: East Africa

David P. Rowell and Robin Chadwick

Understanding why different climate models produce different projections of future regional climate change is critical for the evaluation of the reliability of their projections. This study investigates the causes of projection spread across CMIP5 models for seasonal mean rainfall change…

Changes in climate extremes over West and Central Africa at 1.5°C and 2°C global warming.

Arona Diedhiou, Adeline Bichet, Richard Wartenburger, Sonia I Seneviratne, David P Rowell, Mouhamadou B Sylla, Ismaila Diallo, Stella Todzo, N’datchoh E Tour´, Moctar Camara, Benjamin Ngounou Ngatchah, Ndjido AKane, Laure Tall and Francois Affholder

In this study, we investigate changes in temperature and precipitation extremes over West and Central Africa (hereafter, WAF domain) as a function of global mean temperature with a focus on the implications of global warming of 1.5 ◦C and 2◦C…

AMMA-2050 bias-corrected CMIP5 dataset

Serge Janicot and Adjoua Famien

FCFA researchers from the AMMA-2050 consortium have created a new CMIP5 (Coupled Model Intercomparison Project Phase 5) multi-model dataset that removes each model’s observed bias using a state-of-the-art quantile-quantile mapping procedure. This comprises daily data for 1950-2099, for 7 variables, 3…

Wavelet scale analysis of mesoscale convective systems for detecting deep convection from infrared imagery

Cornelia Klein, Danijel Belušić and Christopher M. Taylor

Mesoscale convective systems (MCSs) are frequently associated with rainfall extremes and are expected to further intensify under global warming. However, despite the significant impact of such extreme events, the dominant processes favoring their occurrence are still under debate. Meteosat geostationary…

Trend in the co‐occurrence of extreme daily rainfall in West Africa since 1950

Juliette Blanchet, Claire Aly, Théo Vischel, Gérémy Panthou, Youssouph Sané and Mariane Diop Kane

We propose in this paper a statistical framework to study the evolution of the co-occurrence of extreme daily rainfall in West Africa since 1950. We consider two regions subject to contrasted rainfall regimes: Senegal and the central Sahel. We study…

A bias-corrected CMIP5 dataset for Africa using CDF-t method. A contribution to agricultural impact studies.

Adjoua Moise Famien, Serge Janicot, Abe Delfin Ochou, Mathieu Vrac, Dimitri Defrance, Benjamin Sultan and Thomas Noël

The objective of this paper is to present a new dataset of bias-corrected CMIP5 global climate model (GCM) daily data over Africa. This dataset was obtained using the cumulative distribution function transform (CDF-t) method, a method that has been applied to several…

Characteristics of mid‐level clouds over West Africa

Elsa Bourgeois, Dominique Bouniol, Fleur Couvreux, Françoise Guichard, John H. Marsham, Luis Garcia‐Carreras, Cathryn E. Birch and Douglas J. Parker

Mid‐level clouds, located between 2 and 9 km height, are ubiquitous in the tropical belt. However, few studies have documented their characteristics and tried to identify the associated thermodynamic properties, particularly in West Africa. This region is characterized by a…

A multi‐scale analysis of the extreme rain event of Ouagadougou in 2009

Jean‐Philippe Lafore, Florent Beucher, Philippe Peyrillé, Aïda Diongue‐Niang, Nicolas Chapelon, Dominique Bouniol, Guy Caniaux, Florence Favot, Frédéric Ferry, Françoise Guichard, Emmanuel Poan, Romain Roehrig and Théo Vischel

This study presents a multi‐scale analysis of an extreme rain event that occurred in Burkina Faso on 1 September 2009 with an absolute record of 263 mm rainfall observed at Ouagadougou. This high‐impact weather system results from the combination of…

Current warming will reduce yields unless maize breeding and seed systems adapt immediately

A. J. Challinor, A.-K. Koehler , J. Ramirez-Villegas, S. Whitfield and B. Das

The development of crop varieties that are better suited to new climatic conditions is vital for future food production. Increases in mean temperature accelerate crop development, resulting in shorter crop durations and reduced time to accumulate biomass and yield. The…