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Journal of Environmental Hydrology
ISSN 1058-3912 |
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Electronic Journal of the International Association for
Environmental Hydrology
JEH Volume 14 (2006), Paper 7 Posted June 30, 2006 HYDRAULIC GEOMETRY OF THE TIGRIS RIVER FROM MOSUL TO BEJEE RELATED TO WATER TEMPERATURE MODELING
Riyad Hassan Al-Anbari 1 2University of Mosul, Mosul, Iraq 3Technical Institute of Mosul, Mosul, Iraq ABSTRACT The term hydraulic geometry connotes the relationships between the mean cross-section geometry (width, depth, cross-section, meander length), and the hydraulic variables which include the mean slope, mean friction, and mean velocity for a given influx of water and sediment to the channel and the specified channel boundary conditions at any cross-section and downstream. The hydraulic geometry relations are of great practical value in water river temperature modeling. Leopold expressed the hydraulic geometry relationships for a channel in the form of power functions of discharge. The Tigris River, which has a length of 1800 km is one of the two main rivers in Iraq. To describe its hydraulic geometry, a river reach of 202.5 km from Mosul to Bejee was surveyed using Leopold’s method at maximum, minimum and average discharges. Manning’s n was also calculated and the effect of these discharges on width to depth ratio was shown at all these discharges. The results show that there are different hydraulic geometry characteristics along the river reach with high width to depth ratio, especially at minimum discharges, and this has affected river water temperature. Reference: Al-Anbari, R.H., T.A. Mahmood, and W.F. Yousif. 2006. Hydraulic Geometry of the Tigris River from Mosul to Bejee related to water temperature modeling, Journal of Environmental Hydrology, Vol. 14, Paper 7. CONTACT: Dr. Riyad Hassan Al-Anbari Assist. Prof. University of Technology Baghdad, Iraq E-mail: Email: riyadhassan2003@yahoo.com |
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