Estimating a Water Budget by Using Remote Sensing and GIS Technique for the Rabea Basin/Northwest Iraq

Abstract

A water budget plan is an accounting of water put away inside and water traded among some subset of the compartments, for example, a watershed, a lake, or a spring. Water budget plans give a way to assessing accessibility and maintainability of water gracefully.  The object of this search was to estimate water budget in Rabea basin and to know the recharge and discharge in the basin by using GIS and remote sensing techniques. The location of study are a is in Nineveh Government (42° 00 ' - 43° 00' East, and latitudes 36° 30' - 37°00' North) and covers about 3000 Km 2. GIS and remote sensing technique were used in research to convert raster formula to vector formula in applied water budget equation. The re sults included the totals for precipitation (596.98) m/year, actual evapotranspiration (164.84) m/year, surface runoff (98.43) mm. The study revealed the percentage of water surplus from precipitation to be 59.9% while the water deficit was 30.1% when compared to actual evapotranspiration .