A5020675166- Geophysics and Gravity Measurements
- Remote Sensing in Agriculture
- Flood Risk Assessment and Management
- GNSS positioning and interference
- Land Use and Ecosystem Services
- Remote Sensing and LiDAR Applications
- Solar and Space Plasma Dynamics
- Computational Physics and Python Applications
- Groundwater and Watershed Analysis
- Geophysical and Geoelectrical Methods
- Soil and Land Suitability Analysis
- Cryospheric studies and observations
- Transboundary Water Resource Management
- Global Health and Surgery
- Hydropower, Displacement, Environmental Impact
- Agriculture and Rural Development Research
- Tropical and Extratropical Cyclones Research
- African Botany and Ecology Studies
- Forest Management and Policy
- Hydrology and Watershed Management Studies
- Coastal and Marine Management
- Forest ecology and management
- Soil Moisture and Remote Sensing
- Genetics, Bioinformatics, and Biomedical Research
- Geographic Information Systems Studies
Agrhymet Regional Centre
2017-2024
United Nations Children's Fund Niger
2022
Direction de la Météorologie Nationale du Niger
2017
Mapping the world's dry forests The extent of forest area in dryland habitats, which occupy more than 40% Earth's land surface, is uncertain compared with that other biomes. Bastin et al. provide a global estimate drylands, calculated from high-resolution satellite images covering 200,000 plots. Forests drylands are much extensive previously reported and cover total similar to tropical rainforests or boreal forests. This increases estimates by at least 9%, finding will be important...
Accurately assessing groundwater storage changes in Niger is critical for long-term water resource management but difficult due to sparse field data. We present a study of and recharge Southern Niger, computed using data from NASA Gravity Recovery Climate Experiment (GRACE) mission. compute anomaly estimate by subtracting the surface provided Global Land Data Assimilation System (GLDAS) model GRACE total anomaly. use statistical fill gaps analyze time period 2002 2021, which corresponds life...
Abstract West Africa is one of the poorest regions in world and highly vulnerable to extreme hydrological events due lack reliable monitoring forecast systems. For first time, we demonstrate that initial conditions informed by satellite‐based terrestrial water storage (TWS) estimates improve seasonal streamflow forecasts. TWS variability detected Gravity Recovery Climate Experiment (GRACE) satellites assimilated into a land surface model during 2003–2016 used initialize 6‐month hindcasts...
A central focus for governing bodies in Africa is the need to secure necessary food sources support their populations. It has been estimated that current production of crops will double by 2050 meet future needs production. Higher level crop-based products can assist with managing insecurity, such as cropping watering intensities, crop types, or productivity, require a starting point precise and accurate cropland extent maps indicating where occurs. Current continental are either inaccurate,...
Spatially explicit, near real time information on surface water dynamics is critical for understanding changes in resources, and long-term security planning. The distribution of across the African continent since 1984 updated as every new Landsat scene becomes available presented here, validated first time. We applied Water Observations from Space (WOfS) algorithm, developed well-tested Australia, to acquired over Africa mid 1980s provide spatial past 30+ years. assessed accuracy WOfS using...
The availability of current land cover and use (LCLU) information for monitoring the status resources has considerable value in ensuring sustainable planning development. Similarly, need to provide updated on extent LCLU change West Africa become apparent, given increasing demand driven by rapid population growth. Over past decade, multiple projects have been undertaken produce regional national maps. However, using different classification systems legends made updating sharing challenging....
Groundwater modeling is a useful tool for assessing sustainability in water resources planning. However, groundwater models are difficult to construct regions with limited data availability, areas where planning most crucial. We illustrate how remote sensing can be used situ build and calibrate regional model the Goulbi Maradi alluvial aquifer southern Niger Western Africa. from NASA Gravity Recovery Climate Experiment (GRACE) satellite mission estimate recharge rates, primary source of...
Recent studies have estimated annual flood loss at over two billion USD dollars in damage per year globally. This figure is likely to increase as populations grow, people move prone areas, and flooding dynamics change. Digital Elevation Models are a primary input into many models; therefore, the accuracy resolution of these data sets implications for model that not completely understood. An increasing number DEMs becoming open freely available, which presents analysts with challenge...
Accurate characterization of groundwater resources is required for sustainable management. Due to the cost installing monitoring wells and challenges in collecting managing situ data, data are sparse—especially developing countries. In this study, we demonstrate an analysis long-term storage changes using temporally sparse but spatially dense well where each had as few one historical measurement. We developed methods synthetically estimate table elevation (WTE) times series by clustering two...
Earth observation of waterbodies through time is a powerful tool in understanding both the location and their temporal dynamics. Water Observations from Space (WOfS), developed well-tested Australia, service providing historical surface water observations derived Landsat satellite imagery 1987 to present day. WOfS provides better where usually present; it seldom observed; inundation has been occasionally observed by satellite. We applied algorithm Africa validated its accuracy image...
Groundwater modeling is a useful tool for assessing sustainability in water resources planning. However, groundwater models are difficult to construct regions with limited data availability. We illustrated how remote sensing can be used leverage situ build and calibrate regional model the Goulbi Maradi alluvial aquifer Southern Niger Western Africa. from NASA Gravity Recovery Climate Experiment (GRACE) satellite mission estimate recharge rates, primary source of aquifer. Additionally, we...
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The availability of current land cover and use (LCLU) information for monitoring the status resources has considerable value in ensuring sustainable planning. Similarly, need to provide updated on extent LCLU change West Africa become apparent, given increasing demand driven by rapid population growth sub-region. SERVIR Africa, a regional consortium jointly supported USAID NASA foster geospatial earth observation data science decision-making critical environmental food security challenges,...