2019/03/21 by Anna Kokorina, Kokorina, Anna, Alexey Slunyaev +1
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Amplitude #Atmospheric and Oceanic Physics (physics.ao-ph) #Classical mechanics #Event (particle physics) #Exponential function #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Geology #Geophysics (physics.geo-ph) #Mathematical analysis #Mathematics #Ocean Waves and Remote Sensing #Oceanographic and Atmospheric Processes #Physics #Quantum mechanics #Rogue wave #Statistical physics #Tropical and Extratropical Cyclones Research #physics.ao-ph #physics.flu-dyn #physics.geo-ph
paper · pdf · doi:10.48550/arxiv.1903.10432
arxiv created 2019/03/21 · openalex publication_date 2019/03/21 · arxiv updated 2019/03/26 · openalex created_date 2022/07/24 · openalex updated_date 2026/08/06
The issue of rogue wave lifetimes is addressed in this study, which helps to detail the general picture of this dangerous oceanic phenomenon. The direct numerical simulations of irregular wave ensembles are performed to obtain the complete accurate data on the rogue wave occurrence and evolution. The simulations are conducted by means of the HOS scheme for the potential Euler equations; purely collinear wave systems, moderately crested and short-crested sea states have been simulated. We join instant abnormally high waves in close locations and close time moments to new objects, rogue events, what helps to retrieve the abnormal occurrences more stably and more consistently from the physical point of view. The rogue wave event probability distributions are built based on the simulated wave data. They show the distinctive difference between rough sea states with small directional bandwidth on the one part, and small-amplitude states and short-crested states on the other part. The former support long-living rogue wave patterns (the corresponding probability distributions have heavy tails), though the latter possess exponential probability distributions of rogue event lifetimes and produce much shorter rogue wave events.