Effect of the Proposed Outlets on the Hydrodynamic Behavior and Water Quality of the South-West Part of the Al Hammar Marsh

The current study aims to find a new plan manage the water quality of western part Hammar Marsh reduce salts that cause problems for marshes and preserve their environmental life by isolating southwestern closing outlet under railway embankment. is discharging saline east-western Al Marsh. After marsh, proposed. impact flow hydrodynamics on improving was simulated using SMS model. simulation models marsh are : hydrodynamic model average depth (SMS RMA2) two-dimensional RM4). Civil3D used determine area elevation curve while shape file prepared Arc-GIS first simulate conditions in (water velocity vectors), second salinity (Total Dissolved Solids (TDS)). For calibration verification models, samples were taken from ten selected locations within marsh. measurements conducted 1st January 2nd February 2022. results validated with field measurement, discrepancy between measured found be 11%. Many scenarios based proposed recommended considerably reduces TDS concentration Three run maintain submerged 88 km2, compare three scenarios, points different locations, where ratio scenario 7528 mg/l, 6982 mg/l third 8069 mg/l. Results showed would improve 10% addition controlling contamination east