A5004131124- Plant Water Relations and Carbon Dynamics
- Hydrology and Watershed Management Studies
- Climate variability and models
- Agriculture and Rural Development Research
- Hydrology and Drought Analysis
- Solar Radiation and Photovoltaics
- Flood Risk Assessment and Management
- Water-Energy-Food Nexus Studies
- Geological and Geophysical Studies Worldwide
- Karst Systems and Hydrogeology
- African Botany and Ecology Studies
- Water management and technologies
- Groundwater and Watershed Analysis
- Geophysics and Gravity Measurements
- Hydrological Forecasting Using AI
- Child Nutrition and Water Access
- Remote Sensing and LiDAR Applications
- Soil Moisture and Remote Sensing
- Urban Heat Island Mitigation
- Air Quality Monitoring and Forecasting
- Climate change impacts on agriculture
- Energy Load and Power Forecasting
- Soil erosion and sediment transport
- Archaeological and Historical Studies
Centre National de la Recherche Scientifique
2012-2025
Institut de Recherche pour le Développement
2012-2025
Laboratoire HydroSciences Montpellier
2014-2025
United Nations Children's Fund Niger
2016-2024
Université de Montpellier
2016-2024
Université Abdou Moumouni
2012-2014
The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) was launched to the International 29 June 2018 by National Aeronautics and Administration (NASA). primary science focus of ECOSTRESS is centered evapotranspiration (ET), which produced as Level-3 (L3) latent heat flux (LE) data products. These are generated from Level-2 land surface temperature emissivity product (L2_LSTE), in conjunction with ancillary atmospheric data. Here, we provide first validation...
Core Ideas AMMA‐CATCH is a long‐term critical zone observatory in West Africa. Four sites sample the sharp ecoclimatic gradient characteristic of this region. Combined measurements meteorology, water, and vegetation dynamics began 1990. Intensification rainfall hydrological cycles observed. The strong overall re‐greening may hide contrasted changes. Africa region fast transition from climate, demography, land use perspectives. In context, African Monsoon Multidisciplinary Analysis...
Abstract In West Africa, lakes and reservoirs play a vital role as they are critical resources for drinking water, livestock, irrigation, fisheries. Given the scarcity of in‐situ data, satellite remote sensing is an important tool monitoring lake volume changes in this region. Several methods have been developed to do using water height‐area‐volume relationships, but few publications compared their performances over small medium‐sized shallow lakes. work we compare four based on recent data...
Abstract. In the sub-Saharan Sahel, energy and water cycling at land surface is pivotal for regional climate, resources productivity, yet it still very poorly documented. As a step towards comprehensive climatological description of fluxes in this area, study provides estimates long-term average annual budgets seasonal cycles two main use types cultivated Sahelian belt: rainfed millet crop fallow bush. These build on combination 7-year field data set from typical plots southwestern Niger...
In many tropical areas, evapotranspiration is the most important but least known component of water cycle. An innovative method, named E3S (for EVASPA S-SEBI Sahel), was developed to provide spatially-distributed estimates daily actual (ETd) from remote sensing data in Sahel. This new method combines strengths a contextual approach that used estimate evaporative fraction (EF) surface temperature vs. albedo scatterograms and an ensemble derives ETd weighted average estimated several EF...
Dans les pays du Sahel, le développement de l'agriculture irriguée est une des solutions pour améliorer la sécurité alimentaire. À travers l'exemple sud-ouest Niger, cette étude montre que d'une irrigation à faible coût possible par pompage l'eau nappes phréatiques, ressource renouvelable et mieux répartie dans l'espace eaux surface. Les ressources en eau terres irrigables zone ont été localisées, quantifiées leur potentiel long terme réévalué partir données actualisées. résultats montrent...
ABSTRACT The Sahel has experienced strong climate variability in the past decades. Understanding its implications for natural and cultivated ecosystems is pivotal a context of high population growth mainly agriculture‐based livelihoods. However, efforts to model processes at land–atmosphere interface are hindered, particularly when multi‐decadal timescale targeted, as climatic data scarce, largely incomplete often unreliable. This study presents generation long‐term, high‐temporal...
In distributed land surface modeling (LSM) studies, uncertainty in the rainfields that are used to force models is a major source of error predicted response variables. This particularly true for applications African Sahel region, where weak knowledge highly time/space-variable convective rainfall poorly monitored region considerable obstacle such developments. this study, we field-based stochastic rainfield generator analyze propagation through model simulating water and energy fluxes...
Abstract. In the African Sahel, energy and water cycling at land surface is pivotal for regional climate, resources productivity, yet it still extremely poorly documented. As a step towards comprehensive climatological description of fluxes in this area, study provides estimates average annual budgets seasonal cycles two main use types cultivated Sahelian belt, rainfed millet crop fallow bush. These build on combination 7 year field dataset from typical plots southwestern Niger with detailed...
The Sahel is a semi-arid region where the majority of population depends on subsistence farming. This considered as hotspot for climate change with an expected warming 3 to 4°C by 2100. Indeed, projections show that dry periods are likely be longer and extreme rainfall will more frequent. These changes could have major impact hydrological vegetal resources. study aims assess these impacts typical Sahelian agro-pastoral ecosystem dominated millet crops shrubby savannah in...
The Sahel region, identified as a "hot spot" for climate change, is characterized by water scarcity and an inter-annual variability of resources. Indeed, ongoing changes intensify the evaporative demand which could lead to more frequent period droughts. Therefore, important issue in these countries provide accurate estimation evapotranspiration (ET) spatially distributed manner. growing number spatial ET products, including simple empirical equations (e.g., Penman-Monteith), land surface...
In West Africa, lakes and reservoirs play a vital role as they are critical resources for drinking water, livestock, irrigation fisheries. Given the scarcity of in situ data, satellite remote sensing is an important tool monitoring lake volume changes this region. Several methods have been developed to do using water height area relationships, but few publications compared their performance over small medium-sized lakes. work we compare four based on recent data from Pleiades, Sentinel-2 -3,...