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Observations of Rogue Seas in the Southern Ocean

Articolo
Data di Pubblicazione:
2024
Abstract:
We report direct observations of surface waves from a stereo camera system along with concurrent measurements of wind speed during an expedition across the Southern Ocean in the austral winter aboard the South African icebreaker S.A. Agulhas II. Records include water surface elevation across a range of wave conditions spanning from early stages of wave growth to full development. We give experimental evidence of rogue seas, i.e., sea states characterized by heavy tails of the probability density function well beyond the expectation based on bound mode theory. These conditions emerge during wave growth, where strong wind forcing and high nonlinearity drive wave dynamics. Quasiresonance wave-wave interactions, which are known to sustain the generation of large amplitude rogue waves, capture this behavior. Wave statistics return to normality as the wind forcing ceases and waves switch to a full developed condition.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Toffoli A.; Alberello A.; Clarke H.; Nelli F.; Benetazzo A.; Bergamasco F.; Ntamba B.N.; Vichi M.; Onorato M.
Autori di Ateneo:
ONORATO Miguel
Link alla scheda completa:
https://iris.unito.it/handle/2318/2048870
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/2048870/1497590/2024_Toffoli_et_al_PRL-AAM.pdf
Pubblicato in:
PHYSICAL REVIEW LETTERS
Journal
  • Dati Generali
  • Aree Di Ricerca

Dati Generali

URL

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.154101

Aree Di Ricerca

Settori (2)


PE10_8 - Oceanography (physical, chemical, biological, geological) - (2024)

PIANETA TERRA, AMBIENTE, CLIMA, ENERGIA e SOSTENIBILITA' - Cambiamenti Climatici
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