Rip rap may stabilize a portion of a river bank, but it creates further damage downstream. There are better and more natural ways to restore and protect a river bank, including when human infrastructure is at risk. Learn more here: www.ausableriver.org/programs/restoration

@@ausablecentermakes sense... thanks

@@ausablecenter Wouldn't it be better if the riprap extended along the full length of the curve, ie from one straight to the next, rather than as placed? I understand this is for educational purposes, I'm just wondering.

@@nicotti Imagine a real river, stretching for miles

@@nicotti For a portion of it. But I think the bend after the riprap ends would be hit fairly hard and erode much faster

This makes me mad. Kid's gotta experiment, man. How's we supposed to learn the science stuff elsewise? >:p Feckin books? Screw books. I wanna build a thing, and watch it systemically alter itself over time based on fundamental laws!

@@Woodledude But that is just a waste of time if someone else has already done it and wrote their observations into a book. :P

@@Quotenwagnerianer I feel like that's a rather naieve view of science. To a certain degree it's true; you can accomplish a lot more by trusting the experts in the field to be generally correct and have a pretty good grasp on things, but science is ultimately about thinking critically and asking questions, and believing you can answer them. You build a much more intuitive understanding of a science when you're active in asking question in that field, and when you're just starting out with science, it is deeply informative and relatively straightforward to repeat experiments that have already been done, to come to your own conclusions based on those experiments, and so on. So I'm going to disagree with the sentiment you put forward. It's not a waste of time. Hell, replication studies are a huge part of scientific rigor that don't get nearly enough love; why should we discourage participation in the way you're suggesting? What does that really gain us? Fewer scientists, less question, less rigor, more biased assumptions made by a minority of people that happened to be the first to study a problem and therefore became the "experts". It is not a waste of time to study something that's already been thoroughly studied, because there is always more to learn. It is not a waste of time to tread ground that's already been tread, because until you tread that ground, you won't know what it feels like to do that, why people have made the decisions they've made. I cannot agree with the naieve assumption that science should be "left to scientists", because otherwise there will be no new scientists. That's my two cents anyway :p

@@Woodledude Half the joy in science is learning something, and later doing an experiment, any experiment, and going 'ohhh... so *thats* how that works out.'. used to spend entire days playing around in a local stream, come back muddy and sandy. but happy. would still do that if I wouldn't be looked at judgingly now I'm 20 years older XD

@gyrergd That makes me thing and imagine parents as a river, wonder where the rip rap is?....

Haha you can check out some of the words here: www.ausableriver.org/programs/glossary

@@ausablecenter thank you :D

@Boco Corwin I think the word he may have used was riffraff.

Thank God for riprap

You forgot about the eddies

@@yadai4188 - I bet they're making fun of people called Eddie.

Recommended videos are the best!

@@ausablecenter and after, I continued to watch more videos of these simulations

@@ausablecenter this is oddly soothing

This was in my recommended because I've watched one of these live, and then have watched a couple videos like this, and one of a guy just unclogging street drainage

word

Why does it need to have an UwU at the end

@@w_ldan What _doesn't_ need an UwU at the end?

@@bernadettavarley exactly uwu

@@cancercentral9997 yes uwu

lmfao- uwu

Riprap: "We ask for nothing, Master. " Meanderfurter: "And you shall receive it. In abundance!"

LOL, the R&M army is everywhere.

hahahaha! nice

So does "Eddies form upstream of the riprap"

This is not how rivers work. This is how a sand model of a river works.

@@foodforthesoul1326 Except that this is how rivers work. A sand model works the same except it speeds up the developments. Where this took a few hours a real life river will take decades/centuries

As a DM I agree...

Im wondering if its a term just used in relation to river meanderings or ground water in general

You just might want to do that.

This is the comment I was searching for.

Then watch a real river. This is bogus.

From a suppposed "scientist". LMFAO!

Yes, it's a nice visual.

Nature's pretty neat.

@@ausablecenter i really hope you understood the reference lol

@@DatDuckOfficial Haha we understood it a "little bits." ;-)

Hi Andy, Thanks for the comment. It can take a while for the meanders to develop naturally, so I think a lot of videos dig out the channel to speed up the process. In this case, I had a few hours to work with, so I formed a channel to start the model and let it run. Many factors affect the development of braided channels versus a meandering, single thread channel, including slope, sediment load, seasonal variability in discharge, etc. It can be hard to translate exactly what's happening in this model to real-life. For instance, this is an alluvial channel model with no vegetation and hard, structural controls provided by the stainless steel basin where the sediment is contained. That's not exactly a scenario found in nature. The meanders can only migrate so far before they reach the edge of the table. However, I think there is some value in seeing how a meander changes through time. Cut banks will migrate outward, chute cutoffs will occur, oxbow lakes will form, etc. It's also interesting to observe the fluid dynamics at play within the channel, and the multi-colored sediment allows for that visualization. You can see the erosion due to higher velocities on the outer edge of the channel causing cantilever failures on the cut bank, and the deposition of sediment by slower currents at the inside edge. Thanks again for engaging with us on this.

@@ausablecenter we're always making models, but sometimes, a simple one (even if oversimplified for truly practical applications to be feaseable) can give greater understanding of a subject down the line. thank you for sharing this! Would've been nice to see a reference to oxbow lakes at the very end, but given the angle you seem to have been working on (as well as the really permeable substrate) it wouldn't realy have been anything. for a teaching aid, this would be quite usefull I think. sometimes you have to learn things that are somewhat wrong, so you can later go 'ah, it's not quite right. here's how we improve it' while learning and understanding more then you did before at every step of the way.

in lego city

Maybe we'll make another video!

Great point! You can find a glossary for some of these terms here: www.ausableriver.org/programs/glossary. Thanks for the comment.

Emriver straight channel simulation : kzfaq.info/get/bejne/rLKgf7xz39nXh30.html

Yes indeed!

The section cut off becomes a billabong, or oxbow lake. The billabong might dry out over time, or become filled when the river floods its banks and overflows back into it.

Thank you!

This would lead to a variable outcome, however this simulation is designed to speed up the meander/erosion process, and the results you see would take place over a long period of time (see answers to similar questions below). The amount of time this process takes will take into account the variability of stream flow over time.

It's an Emriver table, they have an extensive website for their products!

Not quite. Check out our blog to learn more: www.ausableriver.org/blog/why-do-streams-meander#:~:text=Meanders%20are%20produced%20when%20water,pool%20structure%20of%20a%20stream.