Browsing by Author "13234684 - Dennis, Stefanus Rainier"
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Climate change vulnerability index for South African aquifers
Dennis, Ingrid; Dennis, Rainier (South African Water Research Commission, 2012)South Africa is viewed as a water-stressed country with an average annual rainfall of 500 mm and any climatic change could have adverse impacts on water resources of the country. The potential impacts of climate change on ... -
A groundwater-planning toolkit for the main Karoo basin: identifying and quantifying groundwater-development options incorporating the concept of wellfield yields and aquifer firm yields
Murray, R.; Dennis, R.; Baker, K.; Ravenscroft, P.; Musekiwa, C. (South African Water Research Commission, 2012)This paper provides an overview of groundwater-planning tools that were developed during a Water Research Commission project that was initiated due to the need to place the significant knowledge on groundwater of the Karoo ... -
An inorganic water chemistry dataset (1972-2011) of rivers, dams and lakes in South Africa
Huizenga, Jan Marten; Dennis, Rainier; Dennis, Ingrid; Silberbauer, Michael (South African Water Research Commission, 2013)A national dataset of inorganic chemical data of surface waters (rivers, lakes, and dams) in South Africa is presented and made freely available. The dataset comprises more than 500 000 complete water analyses from 1972 ... -
An integrated rainfall-runoff water quality model in a mine impacted karst environment
De Klerk, Theunis Christiaan (North-West University (South Africa), 2019)A fully distributed rainfall-runoff model was developed for the Wonderfonteinspruit catchment (± 1 600 km2), in order to accurately determine the rainfall-runoff and mass transport model’s hydrological components that may ... -
Investigate the possible reduction of mine water ingress by introducing tree plantations: case study of Cooke 4 mine (South Africa)
Dennis, Rainier; Dennis, Ingrid; Mokadem, Naziha; Smit, Simmone (Elsevier, 2020)Continuous influxes of groundwater into underground mine workings require a significant financial investment related mainly to the high costs of pumping of large volumes of water ingress, consequently mines become unprofitable. ...