Artificial neural networks in wave predictions at the west coast of Portugal
In coastal and open ocean human activities, there is an increasing demand for accurate estimates of future sea state. In these activities, predictions of wave heights and periods are of particular importance. In this study, two different neural network strategies were employed to forecast significan...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
2005
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/46215 |
| _version_ | 1848757496739528704 |
|---|---|
| author | Makarynskyy, Oleg Pires Silva, A. Makarynska, D. Ventura-Soares, C. |
| author_facet | Makarynskyy, Oleg Pires Silva, A. Makarynska, D. Ventura-Soares, C. |
| author_sort | Makarynskyy, Oleg |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In coastal and open ocean human activities, there is an increasing demand for accurate estimates of future sea state. In these activities, predictions of wave heights and periods are of particular importance. In this study, two different neural network strategies were employed to forecast significant wave heights and zero-up-crossing wave periods 3, 6, 12 and 24 h in advance. In the first approach, eight simple separate neural nets were implemented to simulate every wave parameter over each prediction interval. In the second approach, only two networks provided simultaneous forecasts of these wave parameters for the four prediction intervals. Two independent sets of measurements from a directional wave buoy moored off the Portuguese west coast were used to train and to validate the artificial neural nets. Saliency analysis of the results permitted an optimization of the networks' architectures. The optimal learning algorithm for each case was also determined. The short-term forecasts of the wave parameters verified by actual observations demonstrate the suitability of the artificial neural technique. |
| first_indexed | 2025-11-14T09:29:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-46215 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:29:01Z |
| publishDate | 2005 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-462152019-02-19T05:35:18Z Artificial neural networks in wave predictions at the west coast of Portugal Makarynskyy, Oleg Pires Silva, A. Makarynska, D. Ventura-Soares, C. Artificial intelligence - Wave simulations - Saliency analysis - Optimization In coastal and open ocean human activities, there is an increasing demand for accurate estimates of future sea state. In these activities, predictions of wave heights and periods are of particular importance. In this study, two different neural network strategies were employed to forecast significant wave heights and zero-up-crossing wave periods 3, 6, 12 and 24 h in advance. In the first approach, eight simple separate neural nets were implemented to simulate every wave parameter over each prediction interval. In the second approach, only two networks provided simultaneous forecasts of these wave parameters for the four prediction intervals. Two independent sets of measurements from a directional wave buoy moored off the Portuguese west coast were used to train and to validate the artificial neural nets. Saliency analysis of the results permitted an optimization of the networks' architectures. The optimal learning algorithm for each case was also determined. The short-term forecasts of the wave parameters verified by actual observations demonstrate the suitability of the artificial neural technique. 2005 Journal Article http://hdl.handle.net/20.500.11937/46215 10.1016/j.cageo.2004.10.005 fulltext |
| spellingShingle | Artificial intelligence - Wave simulations - Saliency analysis - Optimization Makarynskyy, Oleg Pires Silva, A. Makarynska, D. Ventura-Soares, C. Artificial neural networks in wave predictions at the west coast of Portugal |
| title | Artificial neural networks in wave predictions at the west coast of Portugal |
| title_full | Artificial neural networks in wave predictions at the west coast of Portugal |
| title_fullStr | Artificial neural networks in wave predictions at the west coast of Portugal |
| title_full_unstemmed | Artificial neural networks in wave predictions at the west coast of Portugal |
| title_short | Artificial neural networks in wave predictions at the west coast of Portugal |
| title_sort | artificial neural networks in wave predictions at the west coast of portugal |
| topic | Artificial intelligence - Wave simulations - Saliency analysis - Optimization |
| url | http://hdl.handle.net/20.500.11937/46215 |