A5079664500- Hydrology and Watershed Management Studies
- Hydrology and Drought Analysis
- Flood Risk Assessment and Management
- Water resources management and optimization
- African studies and sociopolitical issues
- Groundwater and Watershed Analysis
- Climate variability and models
- Climate change impacts on agriculture
- Soil erosion and sediment transport
- Aquatic Ecosystems and Phytoplankton Dynamics
- Hydrology and Sediment Transport Processes
- Aquatic Ecosystems and Biodiversity
- Heavy metals in environment
- Groundwater and Isotope Geochemistry
- Soil and Land Suitability Analysis
- Remote Sensing in Agriculture
- Hydrological Forecasting Using AI
- Water Quality and Pollution Assessment
- Clay minerals and soil interactions
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Elemental Analysis
Botswana International University of Science and Technology
2017-2025
Rhodes University
2011-2013
Environmental Earth Sciences
2004-2010
While extreme rainfall events may provide rare opportunities for replenishment of surface water and groundwater resources in vulnerable (semi)arid areas, they are typically also associated with widespread flooding. The impacts on contaminant movement spatio-temporally complex relationships between during such these regions largely unknown. catchment area (∼4350 km2) upstream Gaborone Dam the Notwane River south-east Botswana northern South Africa experienced major flooding 2016/17, following...
In semi-arid sub-Saharan Africa, climate change and the intensification of human activities have altered hydrological balance modified recurrence extreme hydroclimatic events, such as droughts floods. The geomorphological heterogeneity river catchments across region, variable pressure, lack continuous data preclude definition proper mitigation strategies, with a direct effect on sustainability rural communities. Here, for first time in we characterize events using multidisciplinary approach...
Improved drought and flood management in semi-arid transboundary basins requires a better understanding of the connections between dry wet extremes, surface water groundwater, upstream downstream, local communities formal governance actors. This study describes multi-disciplinary mixed-methods research Limpopo River Basin, southern Africa. The methodology included hydrometeorological data analysis to identify events, group discussions with 240 community participants about processes, impacts...
Abstract The processes that occur in wetlands and natural lakes are often overlooked not fully incorporated the conceptual development of many hydrological models basin runoff. These can exert a considerable influence on downstream flow regimes critical understanding general patterns runoff generation at scale. This is certainly case for river basins southern Africa which contain large altered through attenuation, storage slow release within water bodies. Initial modelling studies conducted...
Population distribution, land-use, industrial activity, urban agricultural activities, and pollution control strategies in Harare, Zimbabwe, have all changed significantly since independence 1980. The effects of these changes on water quality the consequences human ecological health are major economic social importance. This study looked at Marimba River, one inflow rivers into Lake Chivero, Harare city\'s main supply source. river was characterised using standard physical chemical methods...
Abstract Soil wearing away or erosion is a chief agent of land loss in agricultural and regarded worldwide as serious environmental hazard. This study performed watershed prioritization using morphometric parameters based on fuzzy best worse method (F-BWM) GIS integration for Gusru Watershed, India. prioritizes sub-watersheds the area from viewpoint soil five major i.e., stream frequency ( F s ), relative relief R r length overland flow L o ratio h ) drainage density D d ). Fuzzy Best Worse...
This paper evaluates the impacts of climate change on agricultural droughts in Zambezi River basin. The Standardised Precipitation Index (SPI) is used to estimate drought occurrence and severity, historically near future (2064-2065). Outputs three downscaled bias-corrected Global Circulation Models (GCMs) under A2 emissions scenario are employed evaluate impact Based GCMs it anticipated that basin will experience a generally increasing but minimal trend precipitation range 0.3% 12%, with...
The Limpopo River Basin (LRB) is highly vulnerable to floods and droughts, these recurrent extreme events seriously threaten the basin's water food security. Implementing sustainable management practices essential improving resilience future flood drought hazards. Identification of such can be done through evaluating alternative scenarios. It increasingly recognized that scenario analysis strategy identification requires collaboration between scientists a broad range stakeholders from local...
Southern Africa faces both severe droughts and strong floods. Communities describe how they are impacted by extremes, but do not regard them as connected. They prepare for implementing water-saving measures crop changes, report doing little to Governance actors instead try manage example installing dams that can capture floodwater increase water availability during dry seasons. In the Connect4WR project, we combined community governance interviews workshops with scenario modelling explore...
<p>The Limpopo river basin (LRB) is water-stressed and highly susceptible to floods droughts. The impacts of droughts on water availability quality increasing as a result their increase in magnitude frequency. LRB encompasses large diversity physical socio-economical characteristics spread across four Southern Africa countries (Botswana, Mozambique, South Zimbabwe). This dictates heterogeneous human responses, coping mechanisms, policy frameworks from local transboundary...