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Callist Tindimugaya

Callist Tindimugaya
Ministry of Water and Environment, Uganda · Directorate of Water Resources Management

BSc, MSc, MBA, PhD

About

20
Publications
5,591
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734
Citations
Citations since 2016
3 Research Items
434 Citations
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20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060

Publications

Publications (20)
Article
Full-text available
Groundwater plays a fundamental yet often little appreciated role in supporting economic development and human well-being in both urban and rural environments, as well as supporting many aquatic ecosystems in Africa. Thus, groundwater has high relevance to the development and well-being of Africa, if adequately assessed and sustainably exploited. W...
Article
Full-text available
Weathered crystalline bedrock aquifers sustain water supplies across the tropics, including East Africa. Although well yields are commonly <1 L s⁻¹, more intensive abstraction occurs and provides vital urban and agricultural water supplies. The hydrogeological conditions that sustain such high abstraction from crystalline bedrock aquifers remain, h...
Article
Past discussions around water-resources management and development in the River Nile basin disregard groundwater resources from the equation. There is an increasing interest around factoring the groundwater resources as an integral part of the Nile Basin water resources. This is hampered by knowledge gap regarding the groundwater resources dynamics...
Article
Little is known of the interactions between groundwater and surface water on deeply weathered landscapes of low relief in the Great Lakes Region of Africa (GLRA). The role of groundwater in sustaining surface-water levels during periods of absent rainfall is disputed and groundwater is commonly excluded from estimations of surface-water balances. T...
Article
Full-text available
An improved water table fluctuation technique for estimating recharge is applied to a sustained (10-year) groundwater level monitoring record in Uganda, a rare dataset for tropical Africa, and compared against results from soil moisture balance models (SMBMs) and unsaturated flow models. The results show that recharge is directly proportional to ra...
Article
The limited number and duration of hydrological measurements in the East African Highlands inhibit current understanding of the impact of glacial recession on alpine riverflow. From historical records and surveys conducted in the dry season of 2005 and wet season of 2007, we report (1) recent changes in the terminal positions of large valley glacie...
Article
Full-text available
Changes in the intensity of precipitation as a result of global warming are expected to be especially pronounced in the tropics. The impact of changing rainfall intensities on groundwater recharge remains, however, unclear. Analysis of a recently compiled data set of coincidental, daily observations of rainfall and groundwater levels remote from ab...
Article
Projected warming in equatorial Africa, accompanied by greater evaporation and more frequent heavy precipitation events, may have substantial but uncertain impacts on terrestrial hydrology. Quantitative analyses of climate change impacts on catchment hydrology require high-resolution (<50 km) climate data provided by regional climate models (RCMs)....
Article
Deeply weathered crystalline rock aquifer systems comprising unconsolidated saprolite and underlying fractured bedrock (saprock) underlie 40% of sub-Saharan Africa. The vulnerability of this aquifer system to contamination, particularly in rapidly urbanizing areas, remains poorly understood. In order to assess solute and viral transport in saprolit...
Article
Groundwater monitoring in Uganda was initiated in 1998 and was initially based on the adoption of existing boreholes. This initial network comprised 15 dedicated monitoring wells that were unevenly distributed across the country, yet the objective of the network was to give a picture of the changes in groundwater quantity and quality resulting from...
Article
The role of groundwater in maintaining surface water levels during periods of low or absent rainfall on low relief surfaces of the Great Lakes Region of Africa has received little attention and remains very poorly understood. Neither a clear conceptual nor a numerical representation of the interaction between surface water and groundwater in this t...
Article
The impact of climate variability and change on groundwater resources remains poorly understood and is one of the most persistent knowledge gaps identified by the Intergovernmental Panel on Climate Change (IPCC) in both its Third (2001) and Fourth (2007) Assessment Reports. The common exclusion of groundwater from current monitoring and evaluation...
Article
Robust calibration of hydrological models, driven by gridded precipitation data derived from either Regional Climate Models or statistical downscaling of General Circulation Models, is essential to the quantitative analysis of the impacts of climate change on catchment hydrology and freshwater resources. Predicted warming in equatorial Africa, acco...
Article
The areal extent of tropical icefields in the Rwenzori Mountains of East Africa has reduced steadily over the last century from 7.5 km^{2} 2 in 1906 to <1 km^{2} in 2003. Considerable debate persists regarding the impact of deglaciation on alpine riverflow and changes in climate driving glacial recession in the East African Highlands. Recent field...
Article
The areal extent of tropical icefields in the Rwenzori Mountains of East Africa has reduced steadily over the last century from 7.5 km2 in 1906 to
Article
Full-text available
The Rwenzori Mountains are home to one of the last remaining tropical icefields outside of the Andes. Over the last century, equatorial icefields of the East African highlands have been steadily shrinking but the precise climate tropical alpine glaciers remain unclear. More than a decade had passed since the last detailed measurements of glacial co...

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