Using land cover changes and demographic data to improve hydrological modeling in the Sahel

Altimetry data were obtained from the Centre of Topography of the Oceans and the Hydrosphere (CTOH) website (http://ctoh.legos.obs-mip.fr/).. Scientific originality

The objective of this study was to better understand the response of the water cycle to highly variable climatic regimes in Central Sahel using historical climate records and

Algeria is right to push for regional cooperation to address the threat, and discreet aid from the West is crucial to help the Sahel countries regain control of their territory

Taking deliberately an opposite approach – focusing on climate change from the margin – this presentation will use case studies from the West African Sahel to illustrate the

Keywords Hydrological modelling, Sahel, land cover, demographic model, soil water holding capacity, environmental

The objective of this study was to better understand the response of the water cycle to highly variable climatic regimes in Central Sahel using historical climate records and

!  First continuous estimation of water and energy cycle components for fallow ecosystem cover in Central Sahel Next steps:. !  Sensitivity analysis on vegetation

Results indicated that most varieties react to variation in sowing dates by reducing their cycle (emergence to flag leaf) from 7 to 20 days from north to reducing their