Sedimentation and new operational curves for Mosul Dam, Iraq.

Mosul Dam is one of the biggest hydraulic structures in Iraq. Its storage capacity is 11.11 × 109m3at a maximum operation level of 330 m a.s.l. The dam became operational in 1986 and no survey has been conducted to determine its storage capacity and establish new operational curves since this date. A topographic map of scale 1:50 000 dated 1983 was converted into triangulated irregular network (TIN) format using the ArcGIS program to evaluate the operational curves. Then the reservoir was surveyed in 2011 to establish the reduction in its storage capacity and to develop new operational curves. The results indicated that the reduction in the storage capacity of the reservoir was 14.73%. This implies that the rate of sedimentation within the reservoir was 45.72 × 106m3year−1. These results indicate that most of the sediment was deposited within the upper zone of the reservoir where the River Tigris enters the reservoir. EditorD. Koutsoyiannis CitationIssa, E.I., Al-Ansari, N., and Knutsson, S., 2013. Sedimentation and new operational curves for Mosul Dam, Iraq.Hydrological Sciences Journal, 58 (7), 1456–1466. [ABSTRACT FROM AUTHOR]