Observations of Rogue Seas in the Southern Ocean
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...
Published in: | Physical Review Letters |
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Format: | Article in Journal/Newspaper |
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American Physical Society (APS)
2024
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Online Access: | http://hdl.handle.net/1959.3/478223 https://doi.org/10.1103/PhysRevLett.132.154101 |
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ftswinburne:tle:673c3a26-0c61-4003-80b0-f3f8d8271e00:28f49f06-0da8-44be-9edc-ad1dd0a9c582:1 2024-05-19T07:48:53+00:00 Observations of Rogue Seas in the Southern Ocean Toffoli, A. Alberello, A. Clarke, H. Nelli, F. Benetazzo, A. Bergamasco, F. Ntamba, B. Ntamba Vichi, M. Onorato, M. Swinburne University of Technology 2024 http://hdl.handle.net/1959.3/478223 https://doi.org/10.1103/PhysRevLett.132.154101 unknown American Physical Society (APS) http://hdl.handle.net/1959.3/478223 https://doi.org/10.1103/PhysRevLett.132.154101 Copyright © 2024 Physical Review Letters, Vol. 132, no. 15 (Apr 2024), 154101 Journal article 2024 ftswinburne https://doi.org/10.1103/PhysRevLett.132.154101 2024-04-23T23:40:43Z 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. Article in Journal/Newspaper Southern Ocean Swinburne University of Technology: Swinburne Research Bank Physical Review Letters 132 15 |
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Open Polar |
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Swinburne University of Technology: Swinburne Research Bank |
op_collection_id |
ftswinburne |
language |
unknown |
description |
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. |
author2 |
Swinburne University of Technology |
format |
Article in Journal/Newspaper |
author |
Toffoli, A. Alberello, A. Clarke, H. Nelli, F. Benetazzo, A. Bergamasco, F. Ntamba, B. Ntamba Vichi, M. Onorato, M. |
spellingShingle |
Toffoli, A. Alberello, A. Clarke, H. Nelli, F. Benetazzo, A. Bergamasco, F. Ntamba, B. Ntamba Vichi, M. Onorato, M. Observations of Rogue Seas in the Southern Ocean |
author_facet |
Toffoli, A. Alberello, A. Clarke, H. Nelli, F. Benetazzo, A. Bergamasco, F. Ntamba, B. Ntamba Vichi, M. Onorato, M. |
author_sort |
Toffoli, A. |
title |
Observations of Rogue Seas in the Southern Ocean |
title_short |
Observations of Rogue Seas in the Southern Ocean |
title_full |
Observations of Rogue Seas in the Southern Ocean |
title_fullStr |
Observations of Rogue Seas in the Southern Ocean |
title_full_unstemmed |
Observations of Rogue Seas in the Southern Ocean |
title_sort |
observations of rogue seas in the southern ocean |
publisher |
American Physical Society (APS) |
publishDate |
2024 |
url |
http://hdl.handle.net/1959.3/478223 https://doi.org/10.1103/PhysRevLett.132.154101 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Physical Review Letters, Vol. 132, no. 15 (Apr 2024), 154101 |
op_relation |
http://hdl.handle.net/1959.3/478223 https://doi.org/10.1103/PhysRevLett.132.154101 |
op_rights |
Copyright © 2024 |
op_doi |
https://doi.org/10.1103/PhysRevLett.132.154101 |
container_title |
Physical Review Letters |
container_volume |
132 |
container_issue |
15 |
_version_ |
1799467255529996288 |