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Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by genderwhy on Thursday January 12, 2023 @01:41PM (#34358382)
Are rogue waves just the various component waves on different frequencies lining up "perfectly" such that they sum to one large wave? Or are they a different phenomena?
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by ianvisits on Thursday January 12, 2023 @01:46PM (#34358461)
No one really knows what causes them - plenty of theories but not facts - and that's why they are both exceptionally facinating as to how they form, and yet also utterly terrifying.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by cjbgkagh on Thursday January 12, 2023 @01:57PM (#34358636)
Now imagine how scary the rogue holes are, the inverse of rogue waves.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by eternalban on Thursday January 12, 2023 @02:12PM (#34358845)
”[T]hree years past, there happened to me an event such as never happened to mortal man -- or at least such as no man ever survived to tell of -- and the six hours of deadly terror which I then endured have broken me up body and soul.”

A Descent Into The Maelstrom, Edgar Allan Poe, 1845

https://poestories.com/read/descent

Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by Kon-Peki on Thursday January 12, 2023 @02:44PM (#34359260)
I may have experienced a very small one, 10-15 years ago - and I still have flashbacks.

Was a crew member in a sailing regatta and for one 5-10 minute period the waves were just coming from everywhere, breaking all over the place. It was exhilarating, like riding a roller coaster up and down! Then a (relatively) very big one, out of the blue. It seemed to go between us and the next boat, maybe 60 feet away. From the deck, we couldn't even see the top of the mast of the other boat.

And then we fell out of the water.

Our boat, all 30,000 pounds of it, dropped straight down and we crashed, hard, into the water below. The mast bent so much that the cable stays were loose. The impact threw everyone down. The sound: it sounded like the fiberglass crunched and broke. For a moment we all thought we were dead. But we weren't. The mast snapped back so hard the cable stays made a twanging sound. Sails limp - no wind at the bottom of the hole. Then the water all around us swallowed us up; our buoyancy sent us shooting straight up with a lot of force. The wind hit us hard; no time to reflect; have to deal with that now.

Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by glonq on Thursday January 12, 2023 @03:03PM (#34359513)
Oof. That would make a landlubber out of me.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by Kon-Peki on Thursday January 12, 2023 @03:15PM (#34359663)
All those years of racing, including being in multiple collisions, taught me that it is surprisingly difficult to sink a boat. As long as you can maintain hull and deck integrity, you need a LOT of water inflow in a very short amount of time to eliminate buoyancy.

We were never a good team, but I came away from it with far more confidence being on the water than I started :)

Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by jeffrallen on Thursday January 12, 2023 @10:01PM (#34363475)
"Always step up into the lifeboat."

This is advice, hard won, by mariners who abandoned their ship, were lost at sea in their lifeboat, and left behind them a ghost boat that eventually makes its way to shore.

Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by peteradio on Thursday January 12, 2023 @01:57PM (#34358623)
I have a theory that there is something down there, deep in the uncharted depths of the oceans lurking and causing rogue waves, but its just a theory one I dearly hope is wrong...
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by SpeedilyDamage on Thursday January 12, 2023 @02:25PM (#34359021)
Even worse, it's standing in our night sky, in periodic plain sight, taunting us with it's waxing and waning, knowing there's nothing we can do to stop it.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by Nition on Thursday January 12, 2023 @03:53PM (#34360085)
Cold-hearted orb that rules the night...
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by vlachen on Thursday January 12, 2023 @04:42PM (#34360650)
In partnership with the murder-ball of burning hate that bakes the day.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by GalenErso on Thursday January 12, 2023 @02:01PM (#34358692)
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by rcxdude on Thursday January 12, 2023 @01:49PM (#34358490)
only kind of, the suprising thing is they are way bigger than expected (or rather, rogue waves of a given height are orders of magnitude more likely than you would expect from just adding together the statistics of each frequency of wave). There's some other interaction or non-linear behaviour going on which causes them to occur with the frequency that they do, and I don't think there's a single model which actually explains them.
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by saboot on Thursday January 12, 2023 @02:36PM (#34359146)
Wave dynamics, specifically ones which have interactions with the ground, are some of the few systems that need derivatives higher than two to describe them. Lots of interesting stuff going on
Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by danenania on Thursday January 12, 2023 @03:22PM (#34359763)
Thanks for explaining this. I was also familiar with the ‘doubling up’ effect and figured rogue waves were just the unlikely result of multiple double-ups that happen to line up just so. As a surfer you get used to seeing ‘bombs’ once a session or so that are 50-100% bigger than typical set waves (which are already bigger than the average waves). It wouldn’t seem much of a stretch from there to expect that two of those bombs could find each other and double up now and then, and from there that two of those super-bombs would double up every once in awhile.

It’s interesting to know that they happen a lot more often than would be expected statistically from those simple mechanics. Yet another fun potential rare event to keep in mind while surfing in Northern California :)

Re:Extreme 'Rogue Wave' in the North Pacific Confirmed as Mo... by _whiteCaps_ on Thursday January 12, 2023 @02:47PM (#34359306)
They're quite rare, but my understanding is that they can come from an angle different from the prevailing winds / waves, so it's something else.