Projects

Dam synchronisation & flood releases

Dam synchronisation & flood releases in Zambezi river basin

Posted on 3 October 2011

Dam synchronisation & flood releases

The Zambezi river basin is a complex watershed, both hydrologically and institutionally. The Upper Zambezi (Western part) of the catchment consists of huge layers of deposited Kalahari sands, interspersed by vast wetlands, while the Middle and Lower Zambezi are generally more mountainous and fast responding on rainfall. The Southern African Development Community (SADC) has initiated a project, to recommend on improved operations of the reservoirs in the Zambezi river basin. The projects is in collaboration with SSI, South Africa, WRNA South Africa, SEED Mozambique, Rankin Engineering Zambia.

Goals

The Southern African Development Community (SADC) has initiated a project, to recommend on improved operations of the reservoirs in the Zambezi river basin. In particular the focus of the recommendations has been on feasibility of forecasting of floods, added value of synchronized operation, environmental flow releases and potential of new infrastructure

Deliverables

  • Advice on reliability,communication & sustainability of data
  • Recommendations on rainfall-runoff and hydraulic models
  • Precipitation forecasting; requirements
  • Integrating information in and end-to-end forecasting system
  • Institutional aspects to forecasting

Impact

The pilot showed that with use of forecast information, floods due to spillage could have been prevented and power revenue considerably increased.

Technologies used

Delft FEWS (Flood Early Warning System)

Project location

Project partners

  • Deltares