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Benettin, P., Volkmann, T. H. M., von Freyberg, J., Frentress, J., Penna, D., Dawson, T. E., et al. (2018). Effects of climatic seasonality on the isotopic \hack\break composition of evaporating soil waters. Hydrology and Earth System Sciences, 22(5), 2881–2890.
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Kinoti, I., Leblanc, M., Lekula, M., Tweed, S., Kenabatho, P. K., Olioso, A., et al. (2024). Hydrogeological conceptual model of Stampriet transboundary aquifer system in Southern Africa. Groundwater for Sustainable Development, 26, 101301–101316.
Abstract: Stampriet Transboundary Aquifer System (STAS) is shared between Botswana, Namibia and South Africa with massive utilization especially in Namibia. However, the understanding of the comprehensive hydrogeological framework of the aquifer system is limited. This study aimed to develop a comprehensive hydrogeological conceptual model of the aquifer system which mainly entailed 3D hydrostratigraphic modelling using Rockworks 3D geological modelling software, analysis of regional groundwater occurrence and flow system, sources and sinks, hydraulic parameters and definition of STAS boundaries. Six hydrostratigraphic units composed of four aquifers, including a new one (the Dwyka), and two aquitards were identified. Analysis of the regional groundwater flow system revealed that groundwater flows in two directions, indicating presence of a regional groundwater divide. 3D hydrostratigraphic geometry revealed that groundwater flow in STAS is influenced by topography but also by faults such as the Zoetfontein Fault, which displaces the pre-Kalahari rocks vertically creating a barrier to groundwater flow. Hydrostratigraphic and 3D geometry work also led to a 42% increase of the size of STAS compared to the boundary initially delineated by UNESCO. The proposed hydrogeological conceptual model forms a basis for development of numerical integrated hydrological model to simulate surface-groundwater interactions, regional groundwater flow and aquifer development potential.
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Gorgij, A. D., & Kisi, O. (2026). Explainable machine learning reveals climatic and anthropogenic controls on groundwater recharge and depletion. Hydrological Sciences Journal, .
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Walker, B., & Kalvelage, L. (2025). Is green hydrogen really colonial?: A commentary on Tunn et al. 2025. Political Geography, 120, 103318.
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Wagner, L., Raftopoulos, M., & Rasmussen, M. B. (2025). Fragmenting deliberation: Green hydrogen and the conditions for public participation. World Development, 196, 107147.
Abstract: Green hydrogen has emerged as one of the key technologies for the energy transition, both in the Global North and the Global South. However, hydrogen production is located on spatially bounded facilities, and current configurations of hydrogen are riddled with uncertainties. This article analyses how the production of green hydrogen is enrolled in the energy transition and inquire into the specific democratic challenges that this assemblage technology produces. Comparing the conditions of three energy transition in Denmark, Spain and Argentina, it examines how green hydrogen is enabled through different laws and practices that (in)directly facilitate its implementation, how it is legitimized through various kinds of visual and discursive representations as well as the implications are for the conditions of participation. The article argues that although the projects are not very concrete in material terms, the constellations of market and state have shaped the participatory spaces of civil society, generating important effects in the territories, but few democratic openings in local societies.
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