Morphometric analysis of the Al-Teeb river Basin, Se Iraq, using digital elevation model and GIS

Abstract EN

Morphometric parameters of the Al-Teeb River Basin (TRB), located in the southeastern part of Iraq, are studied to evaluate the hydrological condition, developing of watershed management and the environmental effect.

These parameters are calculated using GIS software and standard mathematical formulae as well as satellite image of the Digital Elevation Model (DEM).

According to morphometric analysis results (TRB) has a total area of 1990 km2 and is designated as 5th order basin, with maximum length about 112 km and average width about 17.83 km.

The basin is strongly elongated with an elongation ratio of 0.45 and circularity ratio 0.15.

The relief ratio of (17.30) m ⁄ km reflects the potential activity of water erosion in the basin and the basin is under intense relief and steep slope.

The low value of drainage density in the Al-Teeb Basin of (0.47) km/km2 can be attributed to highly resistant rocks, high topography, high to moderate lineaments, and high infiltration capacity which lead to coarse drainage texture.

The hypsometric curve and hypsometric integral of (TRB) reveal that the basin is fully stabilized and approached the old stage