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A System Dynamics- Based Analysis of Operation Policies for Water
Resources at River Basin Scale
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Saeed Golian 1 Ahmad Abrishamchi2 Massoud Tajrishy3
Abstract
Accepted Aug. 4, 2007)
ch
(Received Jan. 31, 2006
Ar
There are many natural and human subsystems in a watershed with their special interrelationships.
These interrelationships must be duly considered for the integrated and comprehensive management of
the water resources in a water basin. One example of such interrelationships includes upstream water
development and utilization projects which adversely affect downstream water quality and quantity.
Within the framework of an integrated water resources management, various water resources
development and operation policies must be analyzed to select the most convenient one securing the
benefits of all the stakeholders in the watershed. In this study, various operation policies in the Urmiah
Lake Basin and the Aji Chai River Basin on the east of the lake are analyzed to determine their
impacts on the water level in the lake. For this purpose, the Aji Chai Basin is subdivided into three
sub-basins and the System Dynamics, which is a feedback–based object–oriented simulation approach,
is used to develop the dynamic model of the region. To investigate the present scenarios, the ARMA
(1, 1) model is used to generate 10 different time series for each sub-basin and the lake water level is
accordingly determined for each case.
Keywords: System Dynamics, Water Resources Development, Modeling, Operation Policies
River Basin.
1.Grad. Student of Water Resources Engineering, Sharif University of
Technology, s.golian@aut.ac.ir
2.Prof., Dept. of Civil Engineering, Sharif University of Technology
3.Assoc. Prof., Dept. of Civil Engineering, Sharif University of
Technology
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