Review of Mathematical Surface Water’s Hydrodynamic/Water Quality Models with Their Application on the Shatt Al Arab River Southern Iraq

The hydrodynamic/water quality model is an important tool in water environment management. It used to gain a deeper understanding of physical, chemical, and biological processes develop models capable represent surface waters with realism. A hydrodynamic can give essential data sediment, noxious, eutrophication modelling. Models enable decision-makers select alternatives for management that are superior more scientifically justifiable. They also provide basis economic analysis evaluate environmental significance cost-benefit ratio. presented study reviewed variety research various techniques modeling. first section focused on the studies conducted Shatt Al Arab River its branches Basrah province southern Iraq. second included local global applied cases. As third section, it method linking produce effective system, which approach we recommend using building comprehensive al-Arab river. will connect HEC-RAS software, known competence modeling complex two-dimensional situations, WASP program, has high ability wide range pollutants cannot represent, especially model.