Lake Overtopping Flood: Dam-breach experiment, outburst flood
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- Опубликовано: 18 сен 2024
- 1-m deep overtopping lake triggers a flood during a dam-breach experiment in Oregon, by USGS (2012-06-13).
Relevant papers:
Logan, M., and Iverson, R.M., 2007, revised 2013, Video documentation of experiments at the USGS debris-flow flume 1992-2006 (amended to include 2007-2013): U.S. Geological Survey Open-File Report 2007-1315 v. 1.3., pubs.usgs.gov/o....
Walder, J.S., Iverson, R.M., Godt, J.W., Logan, M., Solovitz, S.A., 2015. Controls on the breach geometry and flood hydrograph during overtopping of noncohesive earthen dams: DAM-BREACH HYDRAULICS AND HYDROGRAPHS. Water Resour. Res. n/a-n/a. doi:10.1002/2014WR016620
Garcia-Castellanos, D., J. O’Connor, 2018. Outburst floods provide erodability estimates consistent with long-term landscape evolution. Nature Scientific Reports. In press.
I have a question for all (call it a test or a challenge):
When would you say this experimental flood attains the peak discharge? When is the maximum water discharge in cubic meters per second (or cubic feet per second). Write down the youtube time as mm:ss.
3:35
03:56
I'm going to say around 4:05.
@@derangedspyder
It's honestly a tough call between the three of you. But DerangedSpyder I think picked the highest volume time of the three respondes.
The clue is the very little you are able to see downstream in camera 4. Tapping between the time stamps shows it's much faster and rougher the the others.
I don't think until about 4:40 when the head of the river really opens up. There's a lot of water going through that wide area compared to a smaller head of the stream. What's the answer Daniel?
That was dam interesting
1:32 and watch the top. you can see the sand start to ripple under the water and around 1:34 you can see the tipping point when the flow rate increases.
slow it down to see better
That's the point where the water has begun to cut down into the surface of the reservoir. A semicircle of dug-out sand starts to grow from the breach point left at that point.
The video is sped up look at the timestamp a second is not that fast
Thank you for the full video 😊
Why was there compressed air huffing every once in a while? And killer model dam.
Sounded stupid ^^
That was the sound of a pneumatic device
@Samuel Skala
Thanks
@@kirkjohnson8719
Thanks
is he salting it for the dam taste?
¿ experimentoAnalisis de riesgos para poblaciones situadas downstream de una presa? Muy interesante experimento
3:20 - Holy fuck, that music!
ok, ok, i'm removing it :-)
Daniel Garcia-Castellanos Thank you. It's much better now and the video won't actually scare people like it did before.
92kosta what music? At this part I get no sound?
Dam you for posting this, good stuff.
good thing we dont build dams out of sand huh
It's a shame this wasn't the video the RUclips Algorithm picked.
I absolutely disliked the time skipping in the other version.
What an awesome experiment. How much water was behind the dam? What did you use (looks like sand) and how did you compact the material to be strong enough to hold water?
Why is destruction so satisfying?
Oh dam
How is it a real experiment if he breached it in the center and didn't let it breach on its own?
+jmr1068204 the aim is to understand the later development of the flood, not the initiation
Daniel Garcia-Castellanos, ah now I get it. Thank you.
sheesh someone take away this guys editing software. first video he skips 30s randomly to cut down a 5 min video, the second he throws in a bunch of crap music halfway through
Amazing and sad
Just like my addiction work..
Oh.
Shit.
I could just keep watching and watching and watching this if you'd pick a camera angle absolutely any angle angle would do if you just pick one and not keep moving the camera around and changing the view.
this became absolutely unbearable to me and I wasn't able to complete watching the whole video.