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HYDROLOGICAL ASSESSMENTS

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Flood and hydrological analysis: Fish River Catchment

The Fish River catchment in Namibia is an area of concern to the Government as it is a flood prone area having registered very high floods, causing extensive damage to the town of Mariental and the irrigation schemes downstream of Hardap Dam. Measures needed to be put in place to curb further damage as the catchment undergoes its natural flood cycle. The system was modelled, and various mitigation measures were analysed and suggested for the area.

Client

Country

Duration

Namibia Ministry of Agriculture, Water and Forestry

Namibia

2015 - 2015

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Application of Mike Customised Real Time for Flood Prediction in the Inkomati CMA

This pilot project was used to develop a flood prediction system for the IUCMA using the Mike Operations software. The system was successfully implemented and ran flood forecasts on the Crocodile river system in the Inkomati catchment. It contains a predictive hydrological model as well as a hydraulic model integrated into a real time operational framework.

Client

Country

Duration

Embassy of Denmark South Africa

South Africa

2015 - 2015

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Development of Hydrologically Correct DEM

Set up system to provide a full hydrologically corrected DEM for the entire Inkomati Catchment Management Agency. The requirement was to use detailed contour data to generate a DEM at high resolutions and then generate a corrected DEM river delineation, catchment delineation and calculation of dam volumes.

Client

Country

Duration

Inkomati Catchment Management Agency

South Africa

2013 - 2014

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ESKOM Gariep and Van der Kloof Dam Optimisation

Research project to develop a set of operating algorithms to optimise releases from Gariep and Van der Kloof dams. Project showed that with information from runoff and on the actual system it was possible to pre-release water from the dams which would prevent the flooding impact and increase electricity generation through the turbines.

Client

Country

Duration

ESKOM

South Africa

2011 - 2013

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Development of the integrated annual and real-time operating rules for the Western Cape Water Supply System (WCSS)

Setup a decision support system for the Western Cape Water Supply System which was able to provide key information for the overall system integrating several different modelling frameworks. This enabled the models to run and automatically and inform users on the amounts to release to meet water demands as well as provide information on curtailment and restriction decisions.

Client

Country

Duration

Aurecon South Africa (Pty) Ltd/ DWS final client

South Africa

2011 - 2014

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Development of the integrated annual and real-time operating rules for the Western Cape Water Supply System (WCSS)

An online decision support system was setup to assist in the improved management of the system. This integrated hydraulic models within a water resources modelling framework, in an operational system which optimised releases and provided early warnings on the Western Cape Water Supply System. Information was published to a set of management dashboards that were accessible over the internet.

Client

Country

Duration

Sub consulted with Aurecon: Main Client Department of Water and Sanitation

South Africa

2011 - 2013

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The Umgeni Water WRMDSS (water resources management system).

The WRMDSS provides web-based data capture for geographically dispersed Umgeni Water offices. Data such as dam levels, river flow, wastewater treatment volumes, and rainfall is captured by staff on a daily basis. This data is then validated and stored in a central database at head office. Detailed web reports and automated email reports are generated and disseminated within Umgeni Water, displaying data such as historic reservoir trajectories, treatment plant intake and sales, reservoir levels, and tabular reports ready for quarterly reporting documents.

Client

Country

Duration

Umgeni Water

South Africa

2011-2013

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BHP BECSA Middleburg Mines: IMS development project

Set up an information management system as a pilot for the BECSA area. The system was set up to integrate various information sources into a single database.

Client

Country

Duration

AGES Gauteng

South Africa

2012 - 2013

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Hydrological Impacts Associated with the Mining Development in the ETASTAR Concession Area in Mozambique

Development of an integrated surface and groundwater model to investigate the impacts that the mining concession would have on ground and surface water quality and quantity.

Client

Country

Duration

Impacto/ETASTAR Concession Area in Mozambique

South Africa

2008 - 2008

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Hydrological impact assessment for the Sasol Technology Muambo Power Plant EIA

Hydrological modelling of the Power Plant looking at impacts on the surface and groundwater hydrology

Client

Country

Duration

Impacto/Sasol Technology Muambo Power Plant EIA

South Africa

2008 - 2008

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Water Availability Assessment Study, Sabie River in the Inkomati WMA

The Inkomati WMA was considered to be stressed with water requirements exceeding the available supply in all areas except the Sabie River catchment. There was a need to perform a hydrological and systems analysis in this area to determine the water availability on the system and ensure that all users received their allocation.

Client

Country

Duration

Nkomati WMA / DWAF: WRP / Water for Africa

South Africa

2005 - 2008

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The collection and transformation of hydrological and climatic data for the SLURP model for application in the Olifants River basin (IWMI)

Team collected and processed all the hydrological information to develop the SLURP model which was then setup and run on the Olifants river catchment. A full simulation model was set up and verified producing spatially discrete hydrology for the entire catchment.

Client

Country

Duration

IWMI

South Africa

2001 - 2001