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Parameters identification in a seawater intrusion model using adjoint sensitive method

Author

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  • Tber, Moulay Hicham
  • El Alaoui Talibi, Mohamed
  • Ouazar, Driss

Abstract

A numerical method is presented for simultaneous identification of spatially distributed hydraulic conductivity and storativity in a seawater intrusion model. The technique is based on a nonlinear optimization procedure that minimizes the squared error between observed and computed water head values. Gradient information is efficiently computed by the adjoint method, so that the same effort is required regardless of the number of parameters involved. The cost function is minimized via a limited memory variable metric algorithm. Numerical experiments are presented to illustrate the technique and demonstrate its reliability and efficiency in determining the unknown parameters.

Suggested Citation

  • Tber, Moulay Hicham & El Alaoui Talibi, Mohamed & Ouazar, Driss, 2008. "Parameters identification in a seawater intrusion model using adjoint sensitive method," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 77(2), pages 301-312.
    • Handle: RePEc:eee:matcom:v:77:y:2008:i:2:p:301-312
    DOI: 10.1016/j.matcom.2007.08.015
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    Cited by:

    1. Aya Mourad & Carole Rosier, 2019. "A Nonlinear Optimization Method Applied to the Hydraulic Conductivity Identification in Unconfined Aquifers," Journal of Optimization Theory and Applications, Springer, vol. 183(2), pages 705-730, November.
    2. Abudawia, A. & Rosier, C., 2015. "Numerical analysis for a seawater intrusion problem in a confined aquifer," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 118(C), pages 2-16.

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