Coastal Wave Height Prediction using Recurrent Neural Networks (RNNs) in the South Caspian Sea

ABSTRACT

The prediction of wave parameters has a great significance in the coastal and offshore engineering. For this purpose, several models and approaches have been proposed to predict wave parameters, such as empirical, soft computing, and numerical based approaches. Recently, soft computing techniques such as recurrent neural networks (RNN) have been used to develop sea wave prediction models. In this study, the RNN for wave prediction based on the data gathered and the measurement of the sea waves in the Caspian Sea, in the north of Iran is used for this study. The efficiency of RNNs for 3, 6, and 12 hourly and diurnal wave prediction using correlation coefficients is calculated to be 0.96, 0.90, 0.87, and 0.73, respectively. This indicates that wave prediction by using RNNs yields better results than the previous neural network approaches.

KEYWORDS:

• Correlation coefficients
• recurrent neural networks
• Southern Caspian Sea
• wave height

Acknowledgements

The authors are thankful to the National Institute of Oceanography, Iran, for their support.