How do Tidal Bores Work?

Join marine physicist Dr. Patrick Rynne as he explores the science behind tidal bores and see what happens when he tries to surf a bore in Canada!

[dude...are-you-sure]

That has got to be one of the best "explained" videos I've ever watched on YouTube. The way it was explained along with visual aid was perfect for my non scientific brain to comprehend. That video of the surf with multiple camera at work was amazing. The tidal bore resembled the tsunami waves Ive seen on videos. Very fascinating phenomenon. That's for teaching me something new today!! Subbed your channel and love the merch you have. Will def be getting something for the comiNg summer season.

[zbutler]

I experienced one of these in Moblie Bay in Alabama while kayak fishing in the marsh. It had been dead silent for hours and we heard water rushing. We look behind us and there are 3 waves stacked on top of each other. They pass us and we noticed the water on the shore was about 6" higher than it had been. The wind was blowing out and the tide was coming in. I believe the wind had pushed all of the water out of the small creek when suddenly the tide overcame it and all of the water came in at once. It was very neat to experience.

[andrewmullen]

I appreciate your video, but please know the photo of the aircraft with the cloud around it at 5:27 is not a sonic boom, it is caused by pressure and humidity.

[mrthingy]

I won't try surfing a tidal bore at home, because I don't have an appropriate river running through my living room. I'm safe!

[herzogsbuick]

I live in Anchorage, and there are people surfing the tidal bore in Turnagain Arm all the time. I'm not aware of anyone who's died or been injured doing that specifically, scary though I'm sure it is. However, because our tides are so drastic, people will try to walk to islands and other coasts during low tides. Unfortunately, the Cook Inlet's bottom is fine glacial silt that acts as a non-Newtownian fluid: If you run across it, it's hard as concrete, but if you stop and stand there it'll slurp you up. People die on a somewhat regular basis from that, maybe once or twice a decade. They start sinking, can't get out (a man was torn in half when a helicopter tried to pull him out many years ago), and drown. Great video!

[Britmain]

thank you so much!! i have a marine science midterm coming up and I was so confused before watching this. this was beyond helpful!

[sham_scam]

Thanks for the explanation (and the demonstration)! We came across this video trying to understand what we accidentally witnessed - the Lupar river changing direction right in front of our eyes while holidaying in Borneo, Malaysia.

They also have an annual tidal bore festival in which one of the activities IS surfing the wave! (Look for Benak festival in Sri Aman)

[koharumi]

Was hoping to hear the rushing of water as it races up the river. Instead got background music.

[WilsonLee]

I'm reading a novel that takes place in Alaska, and now here I am 😊

[mahekjani]

This is so far the best video on tidal bore explanation.
👍🏻

[WilliamLee-bvtv]

Just found you on the original tide video, amazing channel, you've earned my sub

[barneylaurance]

I think the explanation of sonic booms isn't quite right. Any plane going faster than the speed of sound makes a sonic boom, it's not just planes going at exactly the speed of sound. So I'm not sure that a tidal bore needs the speed of two types of wave to happen to match.

[andyvonbourske]

i live 10 minutes away from moncton and apparently in the 60's the wave was a lot bigger but construction work down river messed it up. hardcore surfers would come from all over to surf it

[gsd]

Hey, can i ask about 6:05. What dose shallower water waves propagating through water is? does it mean all water have this same property? Does it like natural frequency of water? I really want to know, help me answer this.

[willnash]

I have lived about 5 metres from a river with a tidal bore for 20yrs, the river Parrett in Somerset. I can see it from my window and regularly walk along the bank side paths. In all that time Ive only ever seen the bore twice lol. The local authorities have now started to build a tidal barrier which will unfortunately likely put a stop to it

[pg-mtl]

The Moncton tidal bore was bigger years ago. Land development in the estuary and river valley have dampened it a lot...

[petebatista]

Thank you for defining the difference between a tidal wave and a tsunami.

[zebj]

I have seen the river Severn bore that can get up to 7 feet and there have been surfing on it. The record was to surf nearly 8 miles up the river.

[peterward]

I went to alberta instead of the maritimes, i regret not moving to moncton when i had the chance. Love to Canada from the UK

[Madvlo]

09:33 I don't think I have a tidal bore at home .
but i will certainly look for it now .