Hydrogeomorphological Quantitative Study for Watershed of Wadi Al-Therthar North – West Iraq

The twenty one variables (representing climatical, hudrological and geomorphological factors) of six sub basins forming Wadi Al- Therthar north west Iraq was studied to found relation between these variables and amount of runoff.
The area is located geographically between (3630 - 35 35) latitude and (43 00 - 41 55) longitude.
Statistical analysis of correlation and regression of these variables applied where amount of runoff from these basins as dependent variable and the other variables as independent.
Results led to the formulations of mathematical equations which can be use for the predication of the rate of flow other selected variables.