issue 3 publication date 2021-12

• Comparison and evaluation of the performance of data-driven models for estimating suspended sediment downstream of Doroodzan Dam
• The effect of water-spreading weirs of Gonabad city in reducing floods with different return periods (Case study: Riab watershed)
• Some legal and technical issues related to water-spreading weirs
• The Effects of Lack of Surface Water Collection and Disposal Networks in Urban Areas (Case Study: Ahwaz City)
• Analysis of Quran and Hadith on Confronting Water Pollution Using Rainwater Catchment Systems
• Design and construction of GPS vessels to investigate surface flow velocities in open channels