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Enormous ‘rogue waves’ can appear out of nowhere

nationalgeographic.com

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Re: Enormous ‘rogue waves’ can appear out of nowhere

#21

I wager the same process of discovery is about to happen for UFOs. As sensors become more capable we will see more and more hard data. This will move the needle on scientific opinion and that in turn will spur research. The two phenomena may even be related - rogue waves in the fields of QFT...

No post body was provided.

Re: Enormous ‘rogue waves’ can appear out of nowhere

#22

I wager the same process of discovery is about to happen for UFOs. As sensors become more capable we will see more and more hard data. This will move the needle on scientific opinion and that in turn will spur research. The two phenomena may even be related - rogue waves in the fields of QFT...

Quoted post unavailable.

No need to insult them, UFO is a completely normal description which is also being used to describe unknown stealth-planes from foreign militaries, as an example.

With better sensors, such things can be better detected and analyzed.

UFO != Aliens and tinfoil hats.

Re: Enormous ‘rogue waves’ can appear out of nowhere

#23
post #6

Paste in console to read the article document.querySelector('.Modal').remove(); document.querySelector('body').style.position=''; document.querySelector('body').style.overflowY='';

FYI and unrelated to anything else...you can simply do `document.body` to get the `body`.

Re: Enormous ‘rogue waves’ can appear out of nowhere

#27
post #22

Earlier quoted context omitted.

Quoted post unavailable.

No need to insult them, UFO is a completely normal description which is also being used to describe unknown stealth-planes from foreign militaries, as an example. With better sensors, such things can be better detected and analyzed. UFO != Aliens and tinfoil hats.

> This will move the needle on scientific opinion and that in turn will spur research

This person is clearly advocating for SETI, not airplane research.

Re: Enormous ‘rogue waves’ can appear out of nowhere

#28

This is a commercially available product for wave prediction on ships: https://nextocean.nl/wavepredictor.php Not specifically meant for rogue waves though, but rather to predict calm streaks in the waves affecting the ships motion. This is useful, e.g. when landing a helicopter or transferring cargo or persons to another ship while at sea. I can confirm that there is a lot of interesting math involved and, as noted…

There are also open source tide and wave models, which is what researchers use and are fairly accurate. Not sure how much this commercial product differs, but I know the Navy etc. use the open source ones with in house adjustments.

Re: Enormous ‘rogue waves’ can appear out of nowhere

#29

This is a commercially available product for wave prediction on ships: https://nextocean.nl/wavepredictor.php Not specifically meant for rogue waves though, but rather to predict calm streaks in the waves affecting the ships motion. This is useful, e.g. when landing a helicopter or transferring cargo or persons to another ship while at sea. I can confirm that there is a lot of interesting math involved and, as noted…

There are also open source tide and wave models, which is what researchers use and are fairly accurate. Not sure how much this commercial product differs, but I know the Navy etc. use the open source ones with in house adjustments.

Sure, but tide and wave models generally cover a much larger area, such as whole coastal area's and over larger time spans. An example of such a model would be: https://www.youtube.com/watch?v=eN6CDaoMZ7U In the Netherlands this is used e.g. to determine when to close the storm surge barriers to protect the river delta area from flooding due to a tide+storm combination.

In contrast, the Next Ocean product is meant to model the direct area around a single ship, predicting minutes in advance with a second by second granularity. They are able to reuse the raw data coming from the navigation radar that is already installed on every sea-going ship. It uses the backscatter from water ripples to determine the wave field around the ship. Interestingly, for navigational purposes exactly this part of the data is considered noise and filtered out by the on board navigation system. (https://nextocean.nl/technology.php)

[I did some work on the software implementation for Next Ocean a couple of years back]

Anyway, neither type of model has anything to do with rogue waves.

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