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A novel analysis of critical water pollution in the transboundary Aras River using the Sentinel-2 satellite images and ANNs

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Abstract

Recently, remote sensing considered as important tool in studies of water quality issues. The Aras River flows across a transboundary basin in northern Iran. In this study, the aim is to model the water quality parameters (WQPs) using remote sensing and an artificial neural network (ANN), which is a new method proposed to find WQPs based on multivariate regression approaches. The relationship between WQPs and digital data from the Sentinel-2 satellite was determined to estimate and map the WQPs in this river. Using the field data and digital image data, the obtained results show that multivariate regression approaches and high-resolution remote sensing could monitor and predict the distribution of WQPs in this basin. There was a meaningful correlation between bands calculated from image data and the river’s WQPs, including electrical conductivity (EC) (R2 = 0.91), Na+ (R2 = 0.81), Mg2+ (R2 = 0.90), SO42− (R2 = 0.89), Cl (R2 = 0.81), and Ca2+ concentrations (R2 = 0.60). Likewise, the WQPs including EC, SO42−, Mg2+, and Cl in the river are predicted using ANN. This powerful model is built for the rapid assessment and forecasting of experimentally mentioned WQPs at any location in the domain of interest. The results represent the good ability of ANN to simulate the mentioned WQPs. Simulation accuracy, measured by the determination coefficient (DC), varies between 0.982 and 0. 991 for training and overfitting EC test data. It is concluded that the management of transboundary rivers can be achieved by using remote sensing techniques and machine learning methods, which help the beneficiary countries in the sustainable operation.

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Acknowledgements

The authors would like to acknowledge Dr. Javad Parsa (University of Tabriz), for his useful suggestions to improve the quality of the research presented in this manuscript.

Funding

The authors have not disclosed any competing interests.

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Authors

Contributions

Fouladi Osgouei, Zarghami contributed significantly to the conceptualization and methodology framework. HFO, performed the data analysis and interpretation. Fouladi Osgouei, Zarghami, Mosaferi, and Karimzadeh structured and professionally optimized the manuscript.

Corresponding author

Correspondence to H. Fouladi Osgouei.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Editorial responsibility: Maryam Shabani.

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Fouladi Osgouei, H., Zarghami, M., Mosaferi, M. et al. A novel analysis of critical water pollution in the transboundary Aras River using the Sentinel-2 satellite images and ANNs. Int. J. Environ. Sci. Technol. 19, 9011–9026 (2022). https://doi.org/10.1007/s13762-022-04129-4

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  • DOI: https://doi.org/10.1007/s13762-022-04129-4

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