Dam Synchronisation and Flood Releases - agriwaterpedia.info

DAM SYNCHRONISATION AND FLOOD RELEASES IN THE ZAMBEZI RIVER BASIN PROJECT: ANNEX 1 OF FINAL REPORT
5 Models
In addition to the literature and data files that are available, several models have been developed
within the basin, and it is important to have a compilation of this information as well. The table
below summarises the most relevant models that are presently being developed or are already in
use and comments are provided on their availability. For the Project, the models themselves are
not required, but information on their characteristics has been used.
Table 5.1: Models created for the Zambezi River Basin
Model Prepared by Comment
Upper Zambezi
No models available
Middle Zambezi
KAFRIBA WWF An Operational model - old version available for Kafue
Flats, but recommended by DHV to shift to InfoWorks to
comply with ZESCO System. (WRSM 2000 rainfall runoff
model is part of Kariba)
Luangwa PCRaster model
H.C. Winsemius (Delft,
University of
Technology, Deltares)
A daily water balance model, capable to estimate flows from
the Luangwa tributary. The shape and timing of the
hydrograph has been calibrated on signatures from old
discharge records and the water balance using remotely
sensed evaporation estimates . The model runs on daily
rainfall and potential evaporation estimates.
Info Works (Wallingford) ZESCO An Operational model which ZESCO plans to use for
operation of Itezhi-Tezhi and management of Kafue Flats.
Lower Zambezi
HEC-5, Simulation of Flood
Control and Conservation
Systems
Beilfuss, Version 8.0,
October 1998
This is a study model, prepared for the Zambezi system
with the aim of improving environmental flows downstream
of Cahora Bassa. The model domain covers the total
Zambezi.
Mike Flood ARA, Mozambique An Operational model used by ARA Zambeze for flood
prediction downstream Cahora Bassa.
Total Zambezi
WRSM2000 Zambezi
HEC-3 Reservoir System
Analysis for Conservation
Dr. Yamba - University
of Zambia
BRL/NIRAS (World
Bank Funded)
Study model for the hydrology of the Zambezi in
WRSM2000, aimed at assessing the Impacts of Climate
Change on Hydropower Production.
This model has been used for reservoir analysis for the
Worldbank Study (2010). Beginning of 2011 the model will
be handed over to the Interim Zamcom Secretariat.
HUGO model Dr. Hugh Williams Operational model. Monthly water-balance spreadsheet.
Used to advise Cahora Bassa operations. All major dams in
Zambezi are included.
WEAP Water resources
management model
(Zamwis DVD)
Copyright Tellus
Institute, Stockholm
Environmental Institute
A WEAP model of the full Zambezi basin is available, with
the existing reservoirs and a number of demand sectors.
The model is still limited in scope, with only a few years of
hydrological data series, but can easily be extended.
Reference: Winsemius, H.C., Schaefli, B., Montanari, A., Savenije, H.H.G. (2009): On the calibration of
hydrological models in ungauged basins: a framework for integrating hard and soft hydrological information. Water
Resour. Res. 45, W12422, doi:10.1029/2009WR007706
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