Emmanuel Kweku Quansah

**Research Focus Synthesis** The researcher's work across diverse domains focuses on global Sahelian ecosystems, emphasizing interactions between climate change, agriculture, hydrology, atmospheric processes, solar energy, and fire impacts. Key areas include: 1. **Savanna Ecosystems**: Investigates plant water relations and carbon dynamics, including effects of rain events, bias correction methods, numerical modeling, and NASA data. 2. **Climate Change Impact on Agriculture**: Analyzes how climate change affects agricultural productivity in Ghana's savannas, focusing on variability and re-classification of agro-climatic zones. 3. **Hydrology and Drought Analysis**: Studies rainfall patterns using the Gumbel model, extreme value theory for rainfall, satellite data, and extreme precipitation indices over the Volta Basin. 4. **Atmospheric Chemistry and Datasets**: Examines atmospheric nitrogen isotopes and solar radiation models, including satellite-based datasets and ozone concentrations. 5. **Solar Energy and Photovoltaics**: Explores modeling global solar radiation in various locations, satellite-based products, and spatial distribution of solar energy. 6. **Precipitation Estimation and Validation**: Develops rainfall data from Ashanti, validates TRMM and FEWS satellite methods for accurate precipitation measurement. 7. **Mathematical Modeling**: Uses GSBR models for global solar radiation in different regions, differential equations for prey-predator dynamics, Holling-Tanner models with cannibalism, and predator interference effects on biological control. 8. **Fire Effects on Ecosystems**: Analyzes climate variability impacts on savanna fires in West Africa and extreme temperature indices over the Volta Basin. 9. **Extreme Weather Events**: Re-examines hemispheric variability with extreme precipitation indices from CMIP6, assesses solar visibility using TRMM data, models time dynamics of population systems, and explores finite time blow-ups in population models. 10. **Fire Studies (Repeats)**: Revisits fire impacts on ecosystems, includes studies on moist convective environments, long-term food chain dynamics, predator interference effects, and finite time blow-ups in population models. The researcher's integrated approach provides insights into Sahelian ecosystems, focusing on climate change, agriculture, hydrology, atmospheric processes, solar energy, precipitation management, and fire dynamics.