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(Yahoo)   Ever wondered what would happen if we released 42,000 cubic feet of water per second into the Grand Canyon? Well, wonder no more (with pics)   (news.yahoo.com) divider line 77
    More: Cool, Grand Canyon, Bureau of Reclamation, Colorado River, water management, Lake Mead, Sonoran Desert, Alot, Grand Canyon National Park  
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30045 clicks; posted to Main » on 21 Nov 2012 at 9:53 AM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-11-21 11:31:23 AM  
So the grand canyon will be more grand, according to creationist math?
 
2012-11-21 11:32:02 AM  
The problem I see with this is that the water coming out of the lake is going to be relatively sediment free compared to a natural flood. I'm not sure how successful it will really be in rebuilding any beaches... Methinks they didn't think their plan through...
 
2012-11-21 11:35:47 AM  
Bah, should have refreshed before commenting... You guys have it covered!
 
2012-11-21 11:42:25 AM  
Just think of all the missing persons and toxic waste they will recover if they drain Lake Powell.
 
2012-11-21 11:47:38 AM  

Rogue Surf: The only problem here is that it is 42,000 cfs of cold, clear water that flows from Lake Powell into the Grand Canyon, so unless the Paria and Little Colorado Rivers are running muddy, all this does is transport sand down to Lake Mead! This is a useless make-work experiment repeated several times before that has no lasting effect for the Grand Canyon except to remove sand from Marble Canyon and dump it in the upper reaches of Lake Mead. Taxpayor funds should not be used to repeat and repeat a failed "study"! Otherwise, it is a great time to be on the river - we flipped 3 out of 6 boats in Lava Falls at 28,000 cfs and once ran it at about 60,000 cfs and chased upside-down rafts for miles! "Normal" flows (post-dam) are about 8,000 -16,000 CFS depending upon electricity demand.


Fortunately, THEY are geologists, biologists, and scientists whereas you are someone pretending to be.


I pick science.
 
M-G
2012-11-21 11:53:18 AM  
No, I don't wonder, since it's been done a few times before.
 
2012-11-21 12:05:05 PM  

ManRay: Just blow up the Glen Canyon Dam already.


Throw a monkey wrench in the whole thing, as it were?
 
2012-11-21 12:55:19 PM  

Maud Dib: ManRay: Just blow up the Glen Canyon Dam already.

Approves....

[www.abbeyweb.net image 679x522]


Lord, what we need is a precision earthquake

3.bp.blogspot.com
 
ZAZ [TotalFark]
2012-11-21 01:29:02 PM  
The floods, or "high-flows," are an effort to restore the river's natural environment for both tourists and wildlife in the Grand Canyon.

Will any of that water (be allowed to) reach the ocean?

I'm with the "blow up some dams" crowd.
 
2012-11-21 01:34:12 PM  
3.bp.blogspot.com

Okay, now we're really gonna find out if "Nothing's obscure on 'Fark'"


From what TV show are these shots taken?

 
Hint: Glen Canyon is in the episode title.
 
2012-11-21 01:37:24 PM  

fastfxr: Rogue Surf: The only problem here is that it is 42,000 cfs of cold, clear water that flows from Lake Powell into the Grand Canyon, so unless the Paria and Little Colorado Rivers are running muddy, all this does is transport sand down to Lake Mead! This is a useless make-work experiment repeated several times before that has no lasting effect for the Grand Canyon except to remove sand from Marble Canyon and dump it in the upper reaches of Lake Mead. Taxpayor funds should not be used to repeat and repeat a failed "study"! Otherwise, it is a great time to be on the river - we flipped 3 out of 6 boats in Lava Falls at 28,000 cfs and once ran it at about 60,000 cfs and chased upside-down rafts for miles! "Normal" flows (post-dam) are about 8,000 -16,000 CFS depending upon electricity demand.

Fortunately, THEY are geologists, biologists, and scientists whereas you are someone pretending to be.


I pick science.


Sooo Mr. Science Guy, you figure out how clear water from a dam picks up sediment downstream and "restores" beaches (temporarily) and doesn't end up in Lake Mead! This "science" has been shown to have only temporary effects in the past, what is different this time? A lot like the DEA saying "Cannabis bad, Jail Good" or, as was said in Blazing Sasddles: "Gentlemen, we have to protect our phoney baloney jobs!
 
2012-11-21 01:38:35 PM  

acad1228: [3.bp.blogspot.com image 400x304]Okay, now we're really gonna find out if "Nothing's obscure on 'Fark'"
From what TV show are these shots taken? 
Hint: Glen Canyon is in the episode title.


Route 66
 
2012-11-21 01:43:29 PM  
Ah, very good!
 
2012-11-21 01:44:43 PM  

acad1228: Ah, very good!


I only got it from the hint. And from occasionally have way too much time on my hands, but that's a different thing.
 
2012-11-21 01:45:12 PM  
I first visited Lake Powell in 1970. We got to see a number of the cliff dwellings that I guess are now underwater. Also have a vhs from converted super 8 showing my family walking more than a mile to get to Rainbow Bridge.

/CSB?
 
2012-11-21 01:56:49 PM  

Rogue Surf: fastfxr: Rogue Surf: The only problem here is that it is 42,000 cfs of cold, clear water that flows from Lake Powell into the Grand Canyon, so unless the Paria and Little Colorado Rivers are running muddy, all this does is transport sand down to Lake Mead! This is a useless make-work experiment repeated several times before that has no lasting effect for the Grand Canyon except to remove sand from Marble Canyon and dump it in the upper reaches of Lake Mead. Taxpayor funds should not be used to repeat and repeat a failed "study"! Otherwise, it is a great time to be on the river - we flipped 3 out of 6 boats in Lava Falls at 28,000 cfs and once ran it at about 60,000 cfs and chased upside-down rafts for miles! "Normal" flows (post-dam) are about 8,000 -16,000 CFS depending upon electricity demand.

Fortunately, THEY are geologists, biologists, and scientists whereas you are someone pretending to be.


I pick science.

Sooo Mr. Science Guy, you figure out how clear water from a dam picks up sediment downstream and "restores" beaches (temporarily) and doesn't end up in Lake Mead! This "science" has been shown to have only temporary effects in the past, what is different this time? A lot like the DEA saying "Cannabis bad, Jail Good" or, as was said in Blazing Sasddles: "Gentlemen, we have to protect our phoney baloney jobs!


Some people have so little understanding of science! that it might as well be magic performed by those infallible sorcerers of science (oohhh, cool band name).

I think that the general idea behind simulating floods is a good idea, but you have to simulate the most important part, the transfer of the sediment itself. This is such a basic concept (I changed majors shortly after my 2nd year sedimentology and petrology class and it had been well covered several times by then) that I wonder if they run a big mixer in the lake or maybe wait until really windy days to release the extra water... Otherwise they're really just washing the crap (vegetation and fish) away into Lake Meade. Of course, you know they know that... So... What are they trying to accomplish again?
 
2012-11-21 02:07:30 PM  
When did Rob Lowe start doing the news in drag? 

i.imgur.com
 
2012-11-21 02:20:39 PM  
Ken is a Dunderhead

(while I agree with the anti-dam crowd 100%)

Hey, Ken. Way to go there Big Brother. The reservoir is 50% of full pool. You're draining what you can't replace, El Poppy Grande.
 
2012-11-21 03:06:14 PM  

QT_3.14159: Some people have so little understanding of science! that it might as well be magic performed by those infallible sorcerers of science (oohhh, cool band name).

I think that the general idea behind simulating floods is a good idea, but you have to simulate the most important part, the transfer of the sediment itself. This is such a basic concept (I changed majors shortly after my 2nd year sedimentology and petrology class and it had been well covered several times by then) that I wonder if they run a big mixer in the lake or maybe wait until really windy days to release the extra water... Otherwise they're really just washing the c ...


The general idea is good, if only they were picking up sand from the bottom of Lake Powell (they aren't, as you can see from the picture, as all the sand from Cataract Canyon is being dumped 150-180 miles upstream at the top of Lake Powell), so unless they are timing this flood with major floods from the Paria and Little Colorado carrying loads of sand and silt, they are only picking up what little sand is down there and moving it downstream to end up at the top of Lake Mead.
 
2012-11-21 04:19:07 PM  

ZAZ: The floods, or "high-flows," are an effort to restore the river's natural environment for both tourists and wildlife in the Grand Canyon.

Will any of that water (be allowed to) reach the ocean?

I'm with the "blow up some dams" crowd.


Yes, what we really need in this age of rising sea levels is to let more water flow into the ocean. It's not enough for you to deny global warming, you have to exacerbate its harmful effects?
 
2012-11-21 05:26:51 PM  

acad1228: [3.bp.blogspot.com image 400x304]Okay, now we're really gonna find out if "Nothing's obscure on 'Fark'"
From what TV show are these shots taken? 
Hint: Glen Canyon is in the episode title.


its where you get your kicks
 
2012-11-21 05:55:38 PM  

h4b1t: this has been done before.

I just saw a documentary on Lake Mead and the fact that the water level is down a hundred feet or more and the lake level is getting dangerously close to the same level as the intake pipes for Las Vegas. Maybe this should have waited????
People > beaches & animals.


whitneym49.files.wordpress.com

Not sure if serious.
 
2012-11-21 05:56:14 PM  

Dead for Tax Reasons: 42000 cfs doesn't seem too bad for the colorado river, but I may be mistaken


It's less than the typical spring flow pre-dam.
 
2012-11-21 06:45:09 PM  

UberDave: Dead for Tax Reasons: 42000 cfs doesn't seem too bad for the colorado river, but I may be mistaken


Surely you're mistaken.


42000 isn't too terribly high flow....in 81 or 82, after the big snow year in the west, lake Powell almost spilled over the glen canyon dam.
They opened her full bore and had a flow of around 210000cfs down river. There is a picture of a rafter on an 18 foot oar framed raft going through crystal rapids....it is.....humbling to look at.
 
2012-11-21 07:00:15 PM  

ficklefkrfark: UberDave: Dead for Tax Reasons: 42000 cfs doesn't seem too bad for the colorado river, but I may be mistaken


Surely you're mistaken.

42000 isn't too terribly high flow....in 81 or 82, after the big snow year in the west, lake Powell almost spilled over the glen canyon dam.
They opened her full bore and had a flow of around 210000cfs down river. There is a picture of a rafter on an 18 foot oar framed raft going through crystal rapids....it is.....humbling to look at.


210,000 was wayyyyyy off. 79 to 80,000 was the range, apparently got caught up in the hyperbole of the old river runner who told me the story..... The picture is no less incredible though.
 
2012-11-21 11:06:44 PM  
1983, 97,000 cfs or so, ran it in '84 at 60-65,0000 and Crystal was still humbling!
 
2012-11-22 08:33:51 AM  

ficklefkrfark:
42000 isn't too terribly high flow....in 81 or 82, after the big snow year in the west, lake Powell almost spilled over the glen canyon dam.
They opened her full bore and had a flow of around 210000cfs down river. There is a picture of a rafter on an 18 foot oar framed raft going through crystal rapids....it is.....humbling to look at.


1983.

4.bp.blogspot.com

I like the 38 foot motor rig series:

river-god.com
 
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