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Communication incl. Poster: BibTeX citation key:  Afoudab
Afouda, A. & Alamou, E. 2009. A Noether-type conservation law for hydrological modelling: assessment of applicability for climate change impact analysis. Work presented at Third International AMMA Conference, July 20—24, at Ouagadougou, Burkina Faso.
Added by: Devic 2009-10-06 10:33:22    Last Edited by: roussot 2009-10-16 16:24:42
Categories: Society-Environment-Climate interactions
Keywords: Hydrology
Creators: Afouda, Alamou
Publisher: African Monsoon Multidisciplinary Analyses (Ouagadougou, Burkina Faso)
Collection: Third International AMMA Conference

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Changes in hydrological cycle induced by global warming may pose a major threat in society-environment-climate-interaction, e.g. with regard to extreme events changing water availability and water quality. These effects will be deeply felt by the most vulnerable in society, particularly women and children who lack the adaptative capacity to cope with water shortages. The challenge for hydrological community is therefore to develop better methods and tools for more effective sustainable water management, thus improving the quality of lives of the poorest and most vulnerable targeted by the Millennium Development Goal (MDG). Managing the competing demands for water has proved to be most critical during the periods of severe and extensive drought that struck West African Countries in these last decades. Furthermore a recurrent hydrological problem in this region is the lack of reliable data in both temporal and spatial aspects, while the modifications to rainfall-runoff relationship induced by global change require new modeling approaches that can take into account both the effect of climate change and human activities on land cover. In this paper, energy and water balance analyses resulting in a Noether type conservation law is presented. This physics-based rainfall-runoff model has been successfully applied to Ouémé river basin at Bétérou station. An attempt is made here to check the applicability of the model for an ungauged river basin, Okpara River basin at Kika (Benin). A comprehensive uncertainty analysis is performed. The physical mean of the conservation law is emphasized and the great generality of the approach is commented upon.
Last Edited by: roussot