Article (Scientific journals)
Enhancing streamflow prediction in a mountainous watershed using a convolutional neural network with gridded data
Hajibagheri, Zahra; RAJABI, Mohammadmahdi; Oskouei, Ebrahim Asadi et al.
2024In Environmental Science and Pollution Research, 31 (55), p. 63959 - 63976
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Keywords :
Deep neural network; ERA5-Land dataset; Forward feature selection; Hydrological modeling; Streamflow simulation; Convolutional neural network; ERA5-land dataset; Forward feature selections; Hydrological models; Image-based; Neural network model; Neural-networks; Streamflow prediction; Streamflow simulations; Volumetrics; Neural Networks, Computer; Seasons; Environmental Chemistry; Pollution; Health, Toxicology and Mutagenesis
Abstract :
[en] In this research, we demonstrate the effectiveness of a convolutional neural network (CNN) model, integrated with the ERA5-Land dataset, for accurately simulating daily streamflow in a mountainous watershed. Our methodology harnesses image-based inputs, incorporating spatial distribution maps of key environmental variables, including temperature, snowmelt, snow cover, snow depth, volumetric soil water content, total evaporation, total precipitation, and leaf area index. The proposed CNN architecture, while drawing inspiration from classical designs, is specifically tailored for the task of streamflow prediction. The model’s performance, assessed during both the training and testing phases, demonstrates high accuracy, reflected quantitatively in metrics such as RMSE, MAPE, R2, and NSE. Notably, the model exhibits enhanced accuracy in predicting lower flow rates, particularly in autumn and winter, as evidenced by an average RMSE of 2.02 m3/s for flows below 13.8 m3/s. In contrast, the model’s precision decreases in high flow rate scenarios, predominantly in spring and early summer. The implementation of forward feature selection (FFS) has further optimized the model, pinpointing total evaporation and volumetric soil water as key parameters, thus enabling a more efficient model with accuracy comparable to the initial, more complex version. This research underscores the practical utility of an image-based approach using CNN models for streamflow prediction. Moreover, the adoption of the freely available and universally accessible ERA5-Land dataset highlights its effectiveness as a valuable and cost-efficient tool for streamflow prediction. Graphical Abstract: (Figure presented.)
Disciplines :
Civil engineering
Author, co-author :
Hajibagheri, Zahra;  Civil and Environmental Engineering Faculty, Tarbiat Modares University, Tehran, Iran
RAJABI, Mohammadmahdi  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) ; Civil and Environmental Engineering Faculty, Tarbiat Modares University, Tehran, Iran
Oskouei, Ebrahim Asadi;  Atmospheric Science and Meteorology Research Center, Tehran, Iran
Al-Maktoumi, Ali;  Water Research Center, Sultan Qaboos University, Muscat, Oman ; College of Agriculture and Marine Sciences, Sultan Qaboos University, Muscat, Oman
External co-authors :
yes
Language :
English
Title :
Enhancing streamflow prediction in a mountainous watershed using a convolutional neural network with gridded data
Publication date :
November 2024
Journal title :
Environmental Science and Pollution Research
ISSN :
0944-1344
eISSN :
1614-7499
Publisher :
Springer
Volume :
31
Issue :
55
Pages :
63959 - 63976
Peer reviewed :
Peer Reviewed verified by ORBi
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since 02 March 2025

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