Discussion Topic |
|
This thread has been locked |
The Chief
climber
Down the hill & across the Valley from......
|
|
Once again KenM you conveniently do not post this from one of the lead authors of the study...
Despite all of this, Levermann cautions that the results
should not be over-interpreted in an alarmist way, since whatever
change may be occurring, it is certainly not expected to happen all at once.
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
Did I advise panic??????
|
|
The Chief
climber
Down the hill & across the Valley from......
|
|
Did I ever state you did????
Feeling guilty huh... KenM.
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
"West Basin has been studying the cost of ocean water desalination since 1947 when West Basin was formed to present. Over the years several advances in the desalination technology have brought the costs down significantly.
When studying the cost of desalination the bulk contributor is energy consumption and power rates to produce the water.
It takes about 4,000 kWh to produce one (1) Acre-Foot of water utilizing ocean water desalination.
The energy consumption for other drinking water supplies can range from
3,500 kWh/AF for State Water Project water,
2,500kWh/AF Colorado River Aqueduct water, and
1,500kWh/AF for Indirect Potable Reuse recycled water. - See more at: http://www.westbasindesal.org/the-cost-of-desalination.html"
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
Talking to the chief is like talking to a child. Same logic. Same education.
|
|
The Chief
climber
Down the hill & across the Valley from......
|
|
Ken M
Mountain climber
Los Angeles, Ca
Nov 2, 2015 - 09:33pm PT
Talking to the chief is like talking to a child. Same logic. Same education.
And talking to you KenM is just like talking to a parrot. Plain old learned responses, the sky is falling thought process and exactly the same level of irrational intelligence.
But by all means, don't let that deter you from continuing your parroting...
|
|
dirtbag
climber
|
|
Funny, but I don't view water that runs to the ocean as wasted. That's what healthy west coast river ecosystems are supposed to do.
|
|
August West
Trad climber
Where the wind blows strange
|
|
On an average suburban street, a 1 inch rainstorm produces 1 million gallons of runoff. That is water that is wasted. If it were captured on the property where it falls, it is not overwhelming in volume, it is pure, and it is free.
The san joaquin valley gets like 12 inches of rain a year. If you captured 10% of that over the entire valley, you are talking an inch or so of recharge whereas the groundwater has falled up to several hundred feet. The Sierra gets up to 80 inches of water (at least historically). It really is about moving mountain precip south.
Also water that is captured isn't available for downstream use. So the upside is limited. In LA it would make sense to capture instead of putting it in a concrete channel and sending it to the sea. But in many areas it would be robbing Peter to pay Paul.
|
|
squishy
Mountain climber
|
|
New photo of Folsom Lake from the air, take yesterday.
It's looking a little better than before, but it's still pretty bad.
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
The san joaquin valley gets like 12 inches of rain a year. If you captured 10% of that over the entire valley, you are talking an inch or so of recharge whereas the groundwater has falled up to several hundred feet. The Sierra gets up to 80 inches of water (at least historically). It really is about moving mountain precip south.
Also water that is captured isn't available for downstream use. So the upside is limited. In LA it would make sense to capture instead of putting it in a concrete channel and sending it to the sea. But in many areas it would be robbing Peter to pay Paul.
Beyond any doubt, you're right----solutions have to be local, and oriented to the local conditions.
In LA, San Diego, Orange County, San Francisco Bay Area, San Jose (which make up most of the population of the State), all of them import huge volumes of water from distant places, but once there, the water is used ONCE, then is converted into a problem of disposal.
In all of those locations, if they did as Israel did, and recycled the water, the total water needs would be greatly reduced, and have no impact on anyone else (except to free up water for others!), because they are the end users.
Those strategies still work for Fresno, Bakersfield, Sacramento, etc, but the rainwater harvesting concepts might not work so well, because they are not the end users.
|
|
Chaz
Trad climber
greater Boss Angeles area
|
|
We don't get 12" a year. We'll get 4" one year, and 34" the next.
|
|
August West
Trad climber
Where the wind blows strange
|
|
Regulating ground water pumping is the next big tsunami for CA water poltics. Dams are a side show.
Yes and the state of CA hasn't even been able to get ground water pumpers to report how much they are pumping let alone "regulate" it. In 50 years when the regulations are fully implemented and the legal appeals exhausted, the groundwater will either be depleted or will have fallen so low (that makes it really expensive to pump up to the surface) that Ag might not be able to make any money by pumping it.
|
|
TGT
Social climber
So Cal
|
|
The san joaquin valley gets like 12 inches of rain a year. If you captured 10% of that over the entire valley, you are talking an inch or so of recharge whereas the groundwater has falled up to several hundred feet. The Sierra gets up to 80 inches of water (at least historically). It really is about moving mountain precip south.
pre agricultural development the San Joaquin valley was one big tulle swamp, that is what wasn't a shallow seasonal lake.
Now it grows something more productive than mosquitoes. Never fear though, one repeat of 1861 and ground water levels will substantially recover.
|
|
raw
Mountain climber
Malibu
|
|
Except for subsidence. Aquifer storage is permanently lost when the alluvium compacts.
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
I have to admit, the concept of figuring out how to replace the 15 TRILLION Acre-Feet of overdraft in the Central Valley, just blows my mind.
You get into such issues as lets say you build a dam, using tax dollars. Who owns the water? you infiltrate the water into the land, who owns it then?
The sheer volume of water involved is mind-boggling.
|
|
Dr.Sprock
Boulder climber
I'm James Brown, Bi-atch!
|
|
if everybody urinates outside, you will save toilet water and add ground water at the same time,
buy deodorant, skip showers, live 3rd world style, need an earthquake to drop population,
|
|
The Chief
climber
Down the hill & across the Valley from......
|
|
Ken M
Mountain climber
Los Angeles, Ca
Nov 6, 2015 - 08:45pm PT
I have to admit, the concept of figuring out how to replace the 15 TRILLION Acre-Feet of overdraft in the Central Valley, just blows my mind.
You get into such issues as lets say you build a dam, using tax dollars. Who owns the water? you infiltrate the water into the land, who owns it then?
The sheer volume of water involved is mind-boggling.
What is even more mind boggling is you posted this after eating your dinner. That dinner must have consisted of fresh veggie's, whether organic or not, that were grown and watered in the SJ Valley or any other California growing field that is watered with all the mind boggling water you speak of.
Just love the hypocrisy and ironee in most of the opinions posted here regarding the ground water thievery due to agriculture.
|
|
Ken M
Mountain climber
Los Angeles, Ca
|
|
must be a little bug making noise......
|
|
The Chief
climber
Down the hill & across the Valley from......
|
|
Well KEN M, them "little bugs" will still be here on planet earth living and making lots of noises long after you and your intellectual human race are gone.
So I would not be making such condescending remarks towards them "little bugs" that are most assuredly in them Trader Joe's fresh fruits and vegies you eat daily that are grown with all that mind boggling water you keep whining about.
|
|
John M
climber
|
|
What is even more mind boggling is you posted this after eating your dinner. That dinner must have consisted of fresh veggie's, whether organic or not, that were grown and watered in the SJ Valley or any other California growing field that is watered with all the mind boggling water you speak of.
of course we eat food from there. That isn't the point. The point is how the growing is done. Such as Crops that aren't fitted to the environment and use too much water. Or growing crops for export when we have a water problem. Its a balance thing. Especially since we are drawing down the aquifer and causing subsidence, which destroys some of the aquifers ability to refill.
|
|
|
SuperTopo on the Web
|
Let us know!