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Runoff forecasting model based on variational mode decomposition and artificial neural networks.
- Source :
-
Mathematical biosciences and engineering : MBE [Math Biosci Eng] 2022 Jan; Vol. 19 (2), pp. 1633-1648. Date of Electronic Publication: 2021 Dec 13. - Publication Year :
- 2022
-
Abstract
- Accurate runoff forecasting plays a vital role in water resource management. Therefore, various forecasting models have been proposed in the literature. Among them, the decomposition-based models have proved their superiority in runoff series forecasting. However, most of the models simulate each decomposition sub-signals separately without considering the potential correlation information. A neoteric hybrid runoff forecasting model based on variational mode decomposition (VMD), convolution neural networks (CNN), and long short-term memory (LSTM) called VMD-CNN-LSTM, is proposed to improve the runoff forecasting performance further. The two-dimensional matrix containing both the time delay and correlation information among sub-signals decomposing by VMD is firstly applied to the CNN. The feature of the input matrix is then extracted by CNN and delivered to LSTM with more potential information. The experiment performed on monthly runoff data investigated from Huaxian and Xianyang hydrological stations at Wei River, China, demonstrates the VMD-superiority of CNN-LSTM to the baseline models, and robustness and stability of the forecasting of the VMD-CNN-LSTM for different leading times.
- Subjects :
- China
Data Collection
Forecasting
Neural Networks, Computer
Rivers
Subjects
Details
- Language :
- English
- ISSN :
- 1551-0018
- Volume :
- 19
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Mathematical biosciences and engineering : MBE
- Publication Type :
- Academic Journal
- Accession number :
- 35135221
- Full Text :
- https://doi.org/10.3934/mbe.2022076