20 Feb 2018 08:00 - 20 Feb 2018 17:00
University of Pretoria
The Vadose Zone: Variable Saturation in Engineering Geology and Hydrogeology Presented by the Department of Geology, University of Pretoria Variably saturated flow conditions are increasingly relevant to geotechnical and hydrogeological assessments. This is most evident in the so-called vadose zone that extends from land surface to the phreatic surface, and which is characterised by variably saturated hydrological systems mostly at negative pore water pressures.
12 Jul 2019 10:00 - 12 Jul 2019 14:00
IGS at UFS in Bloemfontein
You are invited to attend the GWD Central Branch Symposium to be hosted at the IGS at UFS in Bloemfontein
31 Oct 2019 08:00 - 31 Oct 2019 10:00
Groundwater is used widely throughout the African continent, with millions of people being dependent on the availability of sufficient quantities of groundwater of acceptable quality. However, as was evident with the recent drought, as well as numerous other extreme events and hydrometeorological disasters such as flooding, topsoil erosion, surface water quality deterioration, and crop failure, groundwater often only provides immediate relief during disaster rather than being the primary source of potable water.
14 Nov 2019 07:30 - 15 Nov 2019 16:40
Glenhoven Conference Centre, Johannesburg, South Africa
The 2019 African Exploration Showcase will focus on the metals and minerals critical to the technologies for a low carbon energy future: technology enabling commodities that are commonly referred to as“Critical Metals”.“Critical Metals” is not accurate in that commodities in this basket are not always metals (e.g. graphite); and ambiguous in that “critical” can refer to the significance of the commodity to a technology (i.e.the technology would not be viable without the commodity) as well as the security of supply of the commodity which is influenced by factors that change with time and locality. We prefer to use the term “Technology Commodities”.
02 Oct 2020 14:00 - 02 Oct 2020 16:00
Science is a living document; it grows and expands as more information becomes available and our knowledge grows. It makes use of hypothesis, experiments, observations, and measurements. Groundwater scientists have a difficult task. They work in a system that is not visible, and they cannot take it into a laboratory to study. They use geophysical methods and drill boreholes to get an idea of the groundwater system that they are studying.
04 Feb 2021 09:00 - 04 Feb 2021 13:00
Department of Geology, University of Pretoria
The vadose zone stretches from the land surface to the groundwater table, where moisture in intergranular pore space and rock defects occurs at variable water saturation and at negative pore-water pressures.
04 Feb 2021 15:00 - 04 Feb 2021 16:00
The Vadose Zone in Engineering Geology and Hydrogeology - Research by UP Geology Join us for a FREE one-hour series of talks on recent research on unsaturated hydraulics and the role of the vadose or unsaturated zone in engineering geology and hydrogeology. The Department of Geology has for the past decade focused on how the soil and rock between land surface and the phreatic or saturated zone behave with respect to highly variable moisture contents. We contributed to knowledge on variably saturated flow through soil, rock defects, karst, and the interfaces between these media.