Determining Thermal Stratification of Zayandeh Roud Dam Reservoirs Using Two-Dimensional CE-QUAL-W2 Model

Document Type : Research Paper

Authors

Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan, Iran.

10.22055/jhs.2024.19073

Abstract

Dam reservoirs, serving as critical repositories of water resources, play an important role for satisfying water demands. However, the pollution of various sources poses significant challenges to the preservation of water quality of these reservoirs. Here, effective management of these resources is necessary. For this purpose, the modeling and simulation of dam reservoirs should be done investigating the impact of pollution. This study focuses on the Zayandeh Roud Dam reservoir in Isfahan province, using historical data from 2016 to 2021. Here, the CEQUAL-W2 model is used for simulation and determining the temperature of water stored in reservoir and release from the dam. Calibration and verification process of model are done for the periods 2016 to 2020 and 2021, respectively. The simulation results show that absolute mean error (AME) of the water temperature release the reservoir are 0.80 degrees Celsius for calibration and 1.16 degrees Celsius for validation process. The results highlighted the performance of advanced modeling approaches, the CEQUAL-W2 model, for the proper management of dam reservoirs.

Keywords


  1. Ma, S., Kassinos, S. C., Fatta Kassinos, D., & Akylas, E. (2008). Effects of selective water withdrawal schemes on thermal stratification in Kouris Dam in Cyprus. Lakes & Reservoirs: Research & Management, 13(1), 51-61. Çalışkan, A., & Elçi, Ş. (2009). Effects of selective withdrawal on hydrodynamics of a stratified reservoir. Water resources management, 23, 1257-1273.
  2. Çalışkan, A., & Elçi, Ş. (2009). Effects of selective withdrawal on hydrodynamics of a stratified reservoir. Water resources management, 23, 1257-1273.
  3. Afshar, A., Kazemi, H., & Saadatpour, M. (2011). Particle swarm optimization for automatic calibration of large scale water quality model (CE-QUAL-W2): Application to Karkheh Reservoir, Iran. Water resources management25, 2613-2632.
  4. Mohammadnejad, B., Parchami, N., & Bahmanesh, J. (2014). Simulation of Nutrient Loading in the Mahabad Dam Reservoir Using the CE-QUAL-W2 Two-Dimensional Model. Journal of Civil and Environmental Engineering, 44(4), 107-115.
  5. Aboutalebi, M., Bozorg-Haddad, O., & Loáiciga, H. A. (2017). Multiobjective design of water-quality monitoring networks in river-reservoir systems. Journal of environmental engineering, 143(1), 04016070.
  6. Ziaie, R., Mohammadnezhad, B., Taheriyoun, M., Karimi, A., & Amiri, S. (2019). Evaluation of thermal stratification and eutrophication in Zayandeh Roud Dam Reservoir using two-dimensional CE-QUAL-W2 Model. Journal of Environmental Engineering, 145(6), 05019001.
  7. Arefinia, A., Bozorg-Haddad, O., Oliazadeh, A., & Loáiciga, H. A. (2020). Reservoir water quality simulation with data mining models. Environmental Monitoring and Assessment, 192, 1-13.
  8. Rasouli, S., Bazargan, J., & Shoaei, S. M. (2020). Application of IRWQISC Index in the Water Quality Evaluation of Dam Reservoirs (Case Study: Golabar Dam Reservoir, Zanjan). Iranian Journal of Irrigation & Drainage, 13(6), 1820-1831.
  9. Hanjaniamin, A. E., Tabrizi, M. S., & Babazadeh, H. (2023). Dissolved oxygen concentration and eutrophication evaluation in Yamchi dam reservoir, Ardabil, Iran. Applied Water Science, 13(1), 1-12.