Ocean Wave Prediction

Ocean waves are primarily generated by surface winds, although in certain regions they may also be influenced by variations in water temperature and salinity. Wave characteristics are controlled by numerous environmental factors, including bathymetry, seabed roughness, coastal morphology, the geometry of the water body (such as straits, bays, or open oceans), offshore structures, and other physical features. These factors give rise to complex wave phenomena, including wave refraction, diffraction, shoaling, reflection, and other transformation processes that significantly influence wave behavior in coastal and offshore environments.

Accurate wave forecasting and real-time wave information are essential for a wide range of marine and coastal activities. In addition to continuous operational forecasting, wave prediction can also be performed for specific weather events, such as forecasting wave heights and their potential impacts during periods of strong winds or storms. Large waves can disrupt numerous human activities, particularly maritime transportation, where navigation safety is a primary concern. Extreme wave events may also cause coastal flooding, damage to coastal infrastructure, shoreline erosion, and morfological changes along the coast. Offshore facilities, including oil and gas platforms, are similarly vulnerable to severe wave conditions that can interrupt operations and compromise personnel safety. Reliable wave forecasting is therefore critical for ensuring the safety, efficiency, and continuity of marine operations.

Advanced numerical modeling provides a fast and effective approach for predicting ocean wave conditions. Operational forecasting systems are developed through several stages. The first stage defines the spatial scale of the application, ranging from local (ports, river mouths, coastal waters), regional (straits, bays, and coastal seas), to global (open ocean). The second stage involves selecting the most appropriate wave modeling modules based on the characteristics of the study area and the dominant wave-generating mechanisms. The final stage establishes an operational forecasting system capable of delivering continuous, accurate, and timely wave predictions.

Hydrodynamic Modeling is used to simulate wave conditions associated with current circulation, while specialized wave models—including Spectral Wave Modeling, Nearshore Spectral Wave Modeling, Parabolic Mild Slope Modeling, Elliptic Mild Slope Modeling, Boussinesq Wave Modeling, and Wave Analysis Tools—are applied to simulate wave generation, propagation, transformation, and nearshore processes according to the physical characteristics of each marine environment. Marine Geographic Information System (Marine GIS) integrates forecasting results with environmental, operational, and spatial datasets, providing a comprehensive platform for visualization, monitoring, and decision support.