Abstract
This work was carried out to aid in developing a prognosis of the spatial and temporal distribution of pollution in the perennial waterways of the lower Olifants and Steelpoort river sub-basins. An initial surface water quality analysis was carried out, based on historical data, gathered by the Resource Quality Information Services (RQIS) directorate of the Department of Water and Sanitation (DWS), of South Africa. This analysis was coupled with a flow regime analysis, based on existing historical hydrological daily time-step data, acquired through online resources supplied by the DWS. This initial analysis provided the opportunity to observe the distribution of measured surface water quality parameters along prominent perennial rivers. After these quality and quantity analyses were carried out, a one-dimensional (1D) hydrodynamic model was used to simulate the flow regime of the perennial rivers of the sub-basin. The results of the simulation allow the following conclusions to be drawn, corresponding with the expected project outcomes: (1) Conclusions about the flow velocities in the perennial rivers, enabling targeted assessments of the distribution of pollutants from discharges into the water bodies. (2) Insight into interventions in operating rules for prominent reservoirs in the basin, and (3) Early warning system support. It is envisioned that these project outcomes will lay the groundwork for a decision support system which relevant local actors can use to plan with, proactively, or to respond with, reactively, to adverse pollution events in the future.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
DWS. (2018). National Water and Sanitation Master Plan. Call to Action. (Version 10.1). Department for Water and Sanitation. http://www.dwa.gov.za/National%20Water%20and%20Sanitation%20Master%20Plan/Documents/NWSMP%20Call%20to%20Action%20v10.1.pdf.
DEA. (2015). Bosveld Phosphate (Pty) Ltd found guilty for polluting the Selati River. Department for Environmental Affairs. https://www.environment.gov.za/mediarelease/bosveldphosphateptyltd_foundguilty.
DWAF. (1996). South African water quality guidelines. Volume 1 domestic use (2. Aufl). The Government Printer.
DWAF. (1996). South African water quality guidelines. Volume 4 agricultural use: Irrigation (2. Aufl.). The Government Printer.
DWAF. (1996). South African water quality guidelines. Volume 5 agricultural use: Livestock watering (2. Aufl.). The Government Printer.
DWAF. (1996). South African water quality guidelines. Volume 7 aquatic ecosystems. (2. Aufl.). The Government Printer.
Holzbecher, E. (1996). Modellierung dynamischer Prozesse in der Hydrologie. Springer.
DHI. (2017). Reference Manual. MIKE 1D Simulation Engine for River and Urban Modelling. http://manuals.mikepoweredbydhi.help/2017/Water_Resources/MIKE_1D_reference.pdf.
Wiggett, J., Jolk, C., & Stolpe, H. (2020). Erhebung von Gewässerquerschnitten für den Bau eines 1D-hydrodynamischen Modells für das Untere Olifants Flusseinzugsgebiet in Südafrika. KW Korrespondenz Wasserwirtschaft, 13(10), 558–563. https://doi.org/10.3243/kwe2020.10.005
Riddell, E., Retief, H., Pollard., S., & Mohlala, T. (2016). Drought mitigation for water security: Interim operating rules for the lower olifants river. Progress and reflection Report. Association for Water and Rural Development (AWARD). https://doi.org/10.13140/RG.2.2.18161.79201.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
1 Elektronisches Zusatzmaterial
Rights and permissions
Copyright information
© 2022 Der/die Autor(en), exklusiv lizenziert durch Springer Fachmedien Wiesbaden GmbH, ein Teil von Springer Nature
About this paper
Cite this paper
Wiggett, J., Jolk, C., Stolpe, H. (2022). 1D Hydrodynamic Modelling as a Tool for Integrated Water Resources Management (IWRM) on the River Sub-basin Level, on the example of the Steelpoort and Lower Olifants River Sub-basins, in South Africa. In: Fuchs-Kittowski, F., Abecker, A., Hosenfeld, F. (eds) Umweltinformationssysteme - Wie trägt die Digitalisierung zur Nachhaltigkeit bei?. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-35685-9_13
Download citation
DOI: https://doi.org/10.1007/978-3-658-35685-9_13
Published:
Publisher Name: Springer Vieweg, Wiesbaden
Print ISBN: 978-3-658-35684-2
Online ISBN: 978-3-658-35685-9
eBook Packages: Computer Science and Engineering (German Language)