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Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

sos.noaa.gov

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Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#31

Post by raverbashing »

pr337h4m wrote: post #15
GalenErso wrote: post #11

Earlier quoted context omitted.

I have long said that if I was given the chance to go back in time just once, and come back, I would return 66 million years ago to witness the meteor impact from the safety of a space shuttle. And now I have an idea for Elon Musk: interplanetary disaster tourism. Purposefully crash asteroids on remote areas of Mars and charge for front row seats. This would have the added benefit of bringing valuable metal ores to b…

These would make amazing VR experiences

Hummmm VR tourism on Mars, that reminds me of something... But it might not be a great idea if the VR is too realistic /s

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#32

Post by fishtacos »

pr337h4m wrote: post #15
GalenErso wrote: post #11

Earlier quoted context omitted.

I have long said that if I was given the chance to go back in time just once, and come back, I would return 66 million years ago to witness the meteor impact from the safety of a space shuttle. And now I have an idea for Elon Musk: interplanetary disaster tourism. Purposefully crash asteroids on remote areas of Mars and charge for front row seats. This would have the added benefit of bringing valuable metal ores to b…

These would make amazing VR experiences

My most memorable VR experiences were a jellyfish/turtle scene and a closeup of a whale, among several games and apps I tried with my headset some years ago.

Games were fun enough, some good, some not. The visual, non-interactive experience gave me a true sense of awe, as if I were transposed into another reality briefly. Not a big fan of the whole "meta" idea, but executed and refined properly, we'll be in the matrix soon enough. Glad I won't be participating :)

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#33

Post by midoridensha »

test7899 wrote: post #17

Are we sure an asteroid killed the dinosaurs? Vulcano erruption leaving the earth in darkness for a prolonged time is another theory.

What ultimately killed the dinosaurs was their own stupidity, greed, and short-sightedness. If they were smart, they would have developed a good space exploration program and technologies to track potentially dangerous asteroids and adjust their orbits before they collide with Earth. They didn't bother to work to protect their only habitat, so it was rendered uninhabitable, killing almost all of them off. Hopefully, future inhabitants of Earth will learn this lesson in time, but I doubt it.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#34

Post by las_balas_tres »

bash-j wrote: post #23

I wonder how they simulate the displacement of water since it's not from how tsunamis usually occur. A lot of water you think would be vaporised into the air and moved with the shockwaves. Plus there is only so much water at the impact site, not an unlimited amount. Given the speed of the impact, would it move as much water? They say when you jump off a bridge, the impact is like hitting cement.

As far as i know, the earth's crust below and around the impact gets displaced by a fair amount. I think the crust acts like a rubber sheet bouncing backwards and forwards. This most likely contributes toward the displacement of water above.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#35

Post by nextos »

fritzo wrote: post #26

> 30,000 times more initial energy than any recorded events As a statistician: this is why heavy-tailed modeling matters. Schools teach the finite-variance version of the Central Limit Theorem and students believe they live in a normal world. The real Central Limit Theorem [1] predicts large rare events following Lévy α-stable distributions. [1] https://en.wikipedia.org/wiki/Stable_distribution#A_generali...

This is so true. Heavy-tailed distributions and extreme value theory [1,2] should be taught more widely.

The normal distribution is just a very particular case of the generalized CLT.

For example, some drug effects are heavy-tailed, but safety trials are often ignoring this.

[1] https://adamwierman.com/wp-content/uploads/2020/09/2013-SIGM...

[2] https://adamwierman.com/wp-content/uploads/2021/05/book-05-1...

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#37

Post by nerdponx »

12907835202 wrote: post #30

If this were to happen today now much evidence would be find of our current civilisations? Would archeologists be able to figure out our cities?

I get the impression that there might not be any archaeologists left after such an event.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#38

Post by indigodaddy »

auctoritas wrote: post #8
jmyeet wrote: post #5

There are a large number of events taht have happened many times in Earth's history and, given the cosmic timelines, will happen again, repeatedly. Some may be preventable with technology (eg asteroid impacts), others less so. A partial list is: tsunamis, earthquakes, volcanoes, supervolcanoes, flood basalts, asteroid impacts, magnetic field reversals, climate change (eg ice once covered the equator, North America us…

More amazing to realize without any of those things we wouldn't be here!

Wow thinking about it from that perspective is also kind mind-blowing. Interesting point!

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#39

Post by buryat »

nextos wrote: post #35
fritzo wrote: post #26

> 30,000 times more initial energy than any recorded events As a statistician: this is why heavy-tailed modeling matters. Schools teach the finite-variance version of the Central Limit Theorem and students believe they live in a normal world. The real Central Limit Theorem [1] predicts large rare events following Lévy α-stable distributions. [1] https://en.wikipedia.org/wiki/Stable_distribution#A_generali...

This is so true. Heavy-tailed distributions and extreme value theory [1,2] should be taught more widely. The normal distribution is just a very particular case of the generalized CLT. For example, some drug effects are heavy-tailed, but safety trials are often ignoring this. [1] https://adamwierman.com/wp-content/uploads/2020/09/2013-SIGM... [2] https://adamwierman.com/wp-content/uploads/2021/05/book-05-1...

> some drug effects are heavy-tailed

where can i read about this? curious

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#40

Post by jacquesm »

fritzo wrote: post #26

> 30,000 times more initial energy than any recorded events As a statistician: this is why heavy-tailed modeling matters. Schools teach the finite-variance version of the Central Limit Theorem and students believe they live in a normal world. The real Central Limit Theorem [1] predicts large rare events following Lévy α-stable distributions. [1] https://en.wikipedia.org/wiki/Stable_distribution#A_generali...

It would save quite a few ocean going ships if this was more appreciated. Those once-in-a-thousand-year-rogue-waves are much more frequent than once in a thousand years.

https://www.theguardian.com/science/2006/jul/26/uknews

But we're still designing ships as though they only happen once every thousand years because the cargo and the ship are insured and the crews are considered expendable.

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