Breaking probability for dominant waves on the sea surface

• Main Authors: Banner, Michael L., Babanin, Alexander V., Young, Ian R.
• Other Authors: Swinburne University of Technology
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Meteorological Society 2000
• Subjects: Southern Ocean
• Online Access: http://hdl.handle.net/1959.3/4989; https://doi.org/10.1175/1520-0485(2000)030%3C3145:BPFDWO%3E2.0.CO;2

The breaking probability is investigated for the dominant surface waves observed in three geographically diverse natural bodies of water: Lake Washington, the Black Sea, and the Southern Ocean. The breaking probability is taken as the average number of breaking waves passing a fixed point per wave period. The data covered a particularly wide range of dominant wavelengths (3–300 m) and wind speeds (5–20 m s−1). In all cases, the wave breaking events were detected visually. It was found that the traditional approach of relating breaking probability to the wind speed or wave age provided reasonable correlations within individual datasets, but when the diverse datasets are combined, these correlations are significantly degraded.