Analysis of hydrological characteristics and drainage network in the Al-Najaf-Karbala Plateau using GIS methods, indicating distinct watershed features.
Key Points
The hydrological assessment shows a drainage network primarily flowing southwest to northeast, affecting flood patterns.
Morphometric analysis reveals that the study area contains six distinct watersheds, with varying stream orders and flow characteristics.
Watershed 4 exhibits the largest bifurcation ratio and steep slopes, while Watershed 2's lowest point facilitates rapid floodwater flow.
Extended basins across all watersheds suggest slower water accumulation, impacting drainage efficiency across varied permeabilities.