Rogue Wave Study

[Pelagic]

This is interesting
Study Finds Massive Rogue Waves Aren’t as Rare as Previously Thought – gCaptain

[Hydra]

Thanks for posting. A more detailed text is there: The Making of the Andrea Wave and other Rogues : Scientific Reports

Alain

[Don C L]

I'm not sure if it was an "Andrea" wave, but years ago while flying with my father over the Santa Barbara channel on a breezy day he leaned the plane over and said, "look at that!" Among the white caps was one very large and long breaking wave just rolling along, significantly larger than all others but we had no way to measure it, of course. It eventually subsided and melted into the crowd, but it sure left an impression on me!

[arsenelupiga]

interesting reading. But seem inadequate.

Article does not touch length of existence of a rogue wave, 1 min 5 min, 1 day etc ... If created by interaction of other wave systems, expiry should be fast. Or once they formed, just keep going ?

Also width - how wide is the front.

That pic is cool.

Active steering can probably help avoiding them a bit, during day and clear night. However, one cannot steer around rogue holes

[Scot McPherson]

well two or three waves converging from different angles will be a sudden lifting of amplitude, and then the wave separate and go their own way, but if waves are close enough in direction, speed and phase and merge gradually it's possible for the waves to join rather permanently through entrainment. Otherwise, the waves will separate out again at the same speed direction and phase as when they began to merge. That could actually be several minutes of time before the waves can be recognized as separate waves again.

[GordMay]

The Grand Unified Theory of Rogue Waves
Rogue waves — enigmatic giants of the sea — were thought to be caused by two different mechanisms. But a new idea that borrows from the hinterlands of probability theory (Large Deviation Theory - LDT) has the potential to predict them all.
Sailors, facing an imminent storm, don’t have years to study the growing waves around them, but the new framework represents small steps toward the long-term goal for rogue wave prediction — machinery that scans the ocean and sounds the alarm when it’s time to batten down the hatches. LDT tools, once they’re modified for the open ocean, could be one way, for those on boats like the München, to know the moment a rogue wave starts focusing.
➥ https://www.quantamagazine.org/the-g...=pocket-newtab

“Experimental Evidence of Hydrodynamic Instantons: The Universal Route to Rogue Waves” ~ by Giovanni Dematteis et al.
➥ https://journals.aps.org/prx/abstrac...sRevX.9.041057

[ronstory]

Here is a recent article including a video from Oxford researchers on how waves crossing at ~120 degrees can create a "Great wave".

https://arstechnica.com/science/2019...ve-in-the-lab/

[GordMay]

A couple more papers:


“Oceanic Rogue Waves” ~ by Kristian Dysthe, et al.
➥ https://www.annualreviews.org/doi/ab....111406.102203

“Real world ocean rogue waves explained without the modulational instability” ~ by Francesco Fedele, et al.
➥ https://www.nature.com/articles/srep27715