Abstract A modified Gauss-Newton method was utilized to estimate water quality model parameters, which is important in the modeling of water quality transport process. This method served the unknown parameters of three engineering problems exceptionally well. We applied this method to obtain a set of water quality parameters by solving the kinetic equations for dissolved and particulate water quality species during episodic events in the Indian River Lagoon, FL. The method was successful in producing water quality model parameters, and the relative errors between measurements and model predictions are below 46.4% and 39.4% for all dissolved and particulate water quality state variables, respectively. In this study we evaluated a good capability of suggested parameter estimation method by comparing a couple of water quality model simulations: (1) water quality model simulation using model parameters produced by the modified Gauss-Newton method and (2) water quality model simulation employing model parameters obtained by the trial-and-error method. The average relative error and ROC score between observed data and water quality model results using model parameters calculated by the modified Gauss-Newton method are 58.3% and 0.565, respectively. In the case of water quality model simulation using model parameters obtained by the trial-and-error method, the average relative error and ROC score are 60.5% and 0.555, respectively. This suggests that the modified Gauss-Newton method efficiently yields water quality model parameters resulting in better or similar model prediction errors when compared to the trial-and-error method.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Estimation of water quality model parameters


    Contributors:
    Kim, Taeyun (author) / Sheng, Y. P. (author)

    Published in:

    Publication date :

    2010-05-01


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Model-based estimation of radio parameters

    A. A. Moiseev | DOAJ | 2018

    Free access

    On estimation of vehicle linear model parameters

    Tayefi, Morteza | Online Contents | 2009


    Estimation of Time-Varying Pilot Model Parameters

    Zaal, Peter / Sweet, Barbara | AIAA | 2011


    Estimation of Time-Varying Pilot Model Parameters

    Zaal, P. / Sweet, B. / American Institute of Aeronautics and Astronautics; Conferderation of European Aerospace Societies | British Library Conference Proceedings | 2011


    Estimation of the Elementary Chirp Model Parameters

    Mittal, Anjali / Grover, Rhythm / Kundu, Debasis et al. | IEEE | 2023