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Analysis of Possible Actions to Manage the Longitudinal Changes of Water Salinity in a Tidal River

Author

Listed:
  • Ali Dinar Abdullah

    (UNESCO-IHE Institute for Water Education
    Basra University)

  • Ioana Popescu

    (UNESCO-IHE Institute for Water Education
    Politechnica University of Timisoara)

  • Ali Dastgheib

    (UNESCO-IHE Institute for Water Education)

  • Pieter Zaag

    (UNESCO-IHE Institute for Water Education
    Delft University of Technology)

  • Ilyas Masih

    (UNESCO-IHE Institute for Water Education)

  • Usama F. A. Karim

    (University of Twente)

Abstract

In previous studies we have ascertained that inflows and seawater intrusion in the Shatt al-Arab River (SAR) are two key physical factors behind fluctuating and sharply escalating salinities observed in recent years. Such levels require a series of countermeasures and investigative studies to translate physical factors into a salinity dynamics model to understand the problem and its impact as these factors vary in location, time and quantity. A one-dimensional hydrodynamic and salt intrusion numerical model was applied to simulate the complex salinity regime in the SAR based on hourly time-series data for the year 2014. The model was used to analyse the impact of different management scenarios on salinity under different conditions. The results show a high correlation between seawater intrusion and river discharge. Increased use of water upstream and local water withdrawals along the SAR will increase seawater intrusion and salinity concentrations. Improving the quantity and quality of the upstream freshwater sources could reduce salinity levels. Discharging the drainage water into the river could be used to counteract the salt intrusion, considering that its location affects both the salinity distribution and extent. A scenario analysis based on a numerical model constructed for the longitudinal salinity variation associated with different sources in a tidal regime, can efficiently screen alternative water management strategies.

Suggested Citation

  • Ali Dinar Abdullah & Ioana Popescu & Ali Dastgheib & Pieter Zaag & Ilyas Masih & Usama F. A. Karim, 2017. "Analysis of Possible Actions to Manage the Longitudinal Changes of Water Salinity in a Tidal River," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(7), pages 2157-2171, May.
    • Handle: RePEc:spr:waterr:v:31:y:2017:i:7:d:10.1007_s11269-017-1634-5
    DOI: 10.1007/s11269-017-1634-5
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    References listed on IDEAS

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    1. Quinn, Nigel W.T., 2011. "Adaptive implementation of information technology for real-time, basin-scale salinity management in the San Joaquin Basin, USA and Hunter River Basin, Australia," Agricultural Water Management, Elsevier, vol. 98(6), pages 930-940, April.
    2. Pieter Zaag, 2007. "Asymmetry and Equity in Water Resources Management; Critical Institutional Issues for Southern Africa," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(12), pages 1993-2004, December.
    3. Shiati, K., 1991. "A regional approach to salinity management in river basins. A case study in southern Iran," Agricultural Water Management, Elsevier, vol. 19(1), pages 27-41, January.
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