News
Early warning systems for food security in West Africa: evolution, achievements and challenges
L. Genesio1, M. Bacci, C. Baron, B. Diarra, A. Di Vecchia, A. Alhassane, I. Hassane, M. Ndiaye, N. Philippon, V. Tarchiani, S. Traoré ; Atmospheric Science Letters Volume 12, Issue 1, pages 142–148, January/March 2011. Consulter l'article inétgral ICI.
In West Africa, early warning systems (EWSs) for food security have been widely recognized to have contributed, in the last 20 years, to an improved ability to deal with famine emergencies.
A unifying view of climate change in the Sahel linking intra-seasonal, interannual and longer time scales
A Giannini, S Salack, T Lodoun, A Ali, A T Gaye and O Ndiaye ; Environmental Research Letters Volume 8 Number , 2013, 8 024010 doi:10.1088/1748-9326/8/2/024010. Consulter l'article intégral ICI.
We propose a re-interpretation of the oceanic influence on the climate of the African Sahel that is consistent across observations, 20th century simulations and 21st century projections, and that resolves the uncertainty in projections of precipitation change in this region: continued warming of the global tropical oceans increases the threshold for convection, potentially drying tropical land, but this 'upped ante' can be met if sufficient moisture is supplied in monsoon flow.
Characterizing and modeling the diversity of cropping situations under climatic constraints in West Africa
Seydou B. Traoré, Agali Alhassane1, Bertrand Muller, Mamoutou Kouressy, Léopold Somé, Benjamin Sultan, Pascal Oettli, Ambroise C. Siéné Laopé, Safiatou Sangaré, Michel Vaksmann, Mbaye Diop, Michael Dingkhun, Christian Baron ; Atmos. Sci. Let. Vol. 12 ;°N° 1 : 89-95 (2011). Article complet ICI
The Sahel region is known for the high vulnerability of its agriculture to climate variability. Early warning systems that make use of agrometerological forecasts are one of the coping strategies developed by policy makers.
An ex-ante evaluation of the use of seasonal climate forecasts for millet growers in SW Niger
P. Roudier, B. Sultan, P. Quirion, C. Baron, A. Alhassane, S. B. Traoré, B. Muller ; International Journal of Climatology ; Volume 32, Issue 5, pages 759–771, April 2012. Consulter l'article intégral ICI
This work assesses the value of climate forecasts for millet growers in Niger. We quantify the potential value of three kinds of categorical forecasts assigning cumulated rainfall during the forthcoming rainy season by tercile (dry, normal, or humid): (i) a realistic imperfect tercile forecast; (ii) a perfect tercile forecast; and (iii) a perfect tercile forecast which includes a prediction of rainy season onset and offset dates.
Interannual variation in fodder production in cowpea varieties in Niger
S Atta, MM Adamou, M Adamou, F Achard, M Saadou, Consulter l'article intégral Int. J. Biol. Chem. Sci. 5(1): 196-205, February 2011 ; Consulter l'article intégral ICI.
In the south areas of Niamey, the capital of Niger, where there is a higher density of livestock because of the Niger River, cowpea is grown mainly for fodder. Unfortunately, there is a lack of dual-purpose cowpea varieties with high potential for fodder production.
Lire la suite : Interannual variation in fodder production in cowpea varieties in Niger
Plus d'articles...
- Present and future climate change in the semi-arid region of West Africa: a crucial input for practical adaptation in agriculture
- Identification des risques climatiques de la culture du maïs au Burkina Faso
- Revue des indices climatiques utilisés dans les systèmes d’assurances agricoles indicielles en Afrique
Thématiques
Ressources
Forum climat
Compteur visiteurs
 | Today | 204 |
 | Yesterday | 225 |
 | This_Week | 1229 |
 | This_Month | 1229 |
 | All_Days | 20300 |