Operation of Mosul-Dokan reservoirs and Samarra barrage using HEC-ressim model during dry period

Abstract EN

The issue of time series records containing low inflow than normal, such criticalperiod results in shortage in reservoir storage, thereby reduction in the reservoir'sreleases that satisfy the demands.

When the expected available water is less thanthe demand, releases may be curtailed, and the reservoir is under stress.

Thisstudy presents an application of HEC – ResSim model to simulate the operationof Mosul, Dokan Reservoirs, and Samarra Barrage during the dry period1999 2000 (modeling of historical data).

Simulated results and recorded datawere compared in order to, first improve the applicability of the software tosimulate reservoir operation by calibrating the model during the period (19902000), and the second to identify the similarity and differences between recordedand model result during dry period.

The aim of applying this software is tomanage the operation of reservoir's system by establishing an operation policyfor each reservoir.

The simulation plots for Mosul Reservoir, exhibit storage poolelevation within the conservation zone including the ability of release ofminimum downstream requirement and the operating Dokan pool reservoir isless than the conservation level.

The upstream of Samarra Barrage pool elevationis affected by the look back level with the consideration of normal and minimumoperation levels.