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Optimizing seasonal discharge predictions: a hybridized approach with AI and non-linear models

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Abstract

Discharge prediction plays a crucial role in hydrology and to reduce the flash flood hazards during monsoon season, it is necessary to build an accurate flow prediction system. Therefore, to forecast the discharge seasonally, data is divided into four seasons as Early Winter Season (EWS), Peak Winter Season (PWS), Monsoon Season (MS) and Summer Spring Season (SSS). For this purpose, a discharge data of 35 years of Beas River at Pandoh is pre-processed by converting the 13,148 daily datasets into seasonal datasets. Also, the time series models are combined with deep learning models to create hybrid models to enhance the predictive accuracy. The predictive accuracy of the proposed models was evaluated using several statistical parameters. The results of the study reveals that the proposed hybrid model SARIMA-ANN perform better as compared to other models for all the four seasons with R2 value of 0.9638 (EWS), 0.9061 (MS), 0.9444 (PWS) and 0.9583 (SSS). Considering the accuracy of the proposed SARIMA-ANN model, signifies to be an alternate solution to estimate the discharge in different phases of civil engineering projects.

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Acknowledgements

The authors acknowledge the insights provided by their colleagues that significantly improved the quality of the manuscript.

Funding

The authors gratefully acknowledge the financial support from the Core Research Grant, SERB Government of India (CRG/2021/002119), to carry out the work presented in this paper.

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Contributions

SS: Conceptualization, data analysis, writing original draft and preparation. MP: Editing, investigation and review.

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Correspondence to Mahesh Patel.

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On behalf of all authors, the corresponding author states that there is no conflict of interest. The authors declare that they have no known competing interests or personal relationships that could have appeared to influence the work reported in this article.

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Sharma, S., Patel, M. Optimizing seasonal discharge predictions: a hybridized approach with AI and non-linear models. Multiscale and Multidiscip. Model. Exp. and Des. (2024). https://doi.org/10.1007/s41939-024-00401-x

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  • DOI: https://doi.org/10.1007/s41939-024-00401-x

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