Could an Aqua-Net Bring Water to the Desert?

July 29, 2010 by Miranda Marquit weblog
Could an Aqua-Net Bring Water to the Desert?

Enlarge

Image source: Shimizu Corporation

(PhysOrg.com) -- Challenges of the future include energy use and continued population growth. And, while there are millions of square miles of land available in the world, not all of it is considered fit for human habitation. Shimizu Corporation, the company contemplating the Luna Ring, has another interesting project in the "just coming up with an idea" stage: The Desert Aqua-Net.

The Aqua-Net is an idea that involves the building of interconnected lakes in the desert. These 18-mile-diameter lakes would be connected by canals fed from the ocean. The lakes would include built islands that could serve as homes for cities teeming with people. Supposedly, this would work because water from the lake would cool the cities, making them livable. There would also be arable land, theoretically, after this cooling above the desert lake islands. The cities would be powered by satellite power stations, and by the sun.

One of the biggest draw backs is that the lakes would be filled with . While the would provide the opportunities for water-based wildlife, and even for biomass development, it doesn't provide much opportunity for drinking. However, Shimizu plans that the some of the would be desalinated, and thus made fit for human consumption and for irrigation of crops.

Of course, cost is a huge barrier to a project like the Aqua-Net. It would be extremely expensive, not to mention use vast resources, to build this Desert Aqua-Net. Other problems could easily arise, related to impacts on oceans and rivers. And, of course, predicting weather patterns, and changes to the climate, could present problems, since these cities could be impacted quite a bit. Finally, and not least, issues of sovereignty would likely arise -- especially since the Desert Aqua-Net would require a great deal of cooperation between countries.

More information: "Desert Aqua-Net Plan," Shimizu Corporation. Available online: http://www.shimz.c … desert.html.

© 2010 PhysOrg.com

3.5 /5 (24 votes)  

Filter


Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

SteveL
Jul 29, 2010

Rank: 5 / 5 (10)
Ugh. I think this is a bad idea. There is already water, in admittedly limited amounts, in the aquafiers. Bringing in salt water would contaminate the aquafiers through the porous soil and then require everyone in the countryside to use desalinization - basically creating a monopoly on potable and irrigation water. Poisoning what exists to control what is available is not a solution.
Sean_W
Jul 29, 2010

Rank: 4.2 / 5 (5)
Ugh. I think this is a bad idea. There is already water, in admittedly limited amounts, in the aquafiers. Bringing in salt water would contaminate the aquifers...


True. Now if the added evaporation and condensation at night resulted in sufficient surface water it might be worth it.

But ther's another problem. These desert regions ar at high altitude so for canals to reach between sea and lakes the lakes need to be sunken deep into the landscape - hundreds of feet.
omatumr
Jul 29, 2010

Rank: 3.8 / 5 (4)
Aqua-Net: A net that holds water.

Great title! But the science seems questionable.

With kind regards,
Oliver K. Manuel
ODesign
Jul 29, 2010

Rank: 3 / 5 (2)
Sounds reasonable to me. Think of it like building a canal that only needs to be 5% as deep and wide as ship transport canals. a series of solar power pumps brings water up to the next level of the lock in a stair step process as the elevation rises or falls (like regular canals do, only using solar power). you wouldn't even need to pay for a pipe, you could just let the earth or possibly some cheep plastic be stop the water from going down into the soil. If it evaporates en route is not a problem. just means population centers build up along canal paths because they find it favorable. The population dispersion would look similar to the US where people congregate along major roadways and interstates.
mgenest001
Jul 29, 2010

Rank: not rated yet
Would be an interesting solution to the problem of rising sea levels. Now if one could find a way to cheaply and quickly desalinate this water....
trekgeek1
Jul 29, 2010

Rank: not rated yet
Systems like these will be necessary in the future. There is plenty of land and resources on this planet for many more billions of people. The key is that we must learn to use land and materials that we currently discard or overlook due to technological inadequacies. Yes, the salt water can foster a monopoly, but this article deals with the engineering feasibility, not the political agendas. The articles presented on this site deal with what we can do if other humans don't purposely gunk up the works. I think this is a great idea that will allow us to accommodate future generations. Next, subterranean cities in freezing cold regions.
Branden520
Jul 29, 2010

Rank: 5 / 5 (2)
I'm sorry but just because there is water in the desert does not mean it will be cooler. I live in AZ and have been on a lake with 105+ temperatures and trust me it doesn't make a difference. The added humidity to the already sweltering heat just leads to faster dehydration and heavier heat exhaustion. IMO this could work but not to "cool" the brutal desert climate.
Atherophage
Jul 29, 2010

Rank: 3.8 / 5 (4)
Be cheaper to harvest calved icebergs/ lift them with lighter-than-air ships/ deposit them in the desert: instant cooling, water, and an end to sea level rise. Well, maybe not, but it would be neat to see.
Pete83
Jul 29, 2010

Rank: 3.5 / 5 (2)
I've actually been toying with a similar idea of the Australian desert for some time now. If you look at a topographical map of south australia, there is a HUGE amount of land there that is essentially at sea level, and most of it is just salt-lakes. If this area were to have water coming in from the sea, then potentially the water evaporating could cause further rainfall on the northwest side of the great dividing range. I am in no way confident regarding the rainfall part, however it's still an interesting idea.

You might end up with a dead sea kind of situation though, as water would always be flowing "in" from the sea, never out, and you might get a massive build up of salt. If the evaporation occured quickly enough you might even be able to get some rapids going and canoe IN from the Sea. That'd be fun.
bottomlesssoul
Jul 29, 2010

Rank: not rated yet
Wow! Is there a word for terraforming as applied to earth? Normally I think it's meant to be applied to alien worlds adapted by us for us with 'alien' being the key word.
nuge
Jul 29, 2010

Rank: 3 / 5 (1)
Salt water in the desert...hmmm. Try this:

http://www.adelai...90500905

I think a canal could be built to fill the already lower-than-sea-level Lake Eyre in South Australia, and greenhouses like this could be set up all around it, allowing the previously completed unsettled area to support agriculture. It wouldn't be prohibitively expensive. And if it does go wrong somehow, it doesn't even matter too much because there is literally nothing there other than salt at the moment.

At any rate, I think something should be done to try to reclaim some of the land lost to desertification globally - with the threat of a growing population, we need to encourage this sort of thinking.
euconsultants
Jul 30, 2010

Rank: not rated yet
This plan is coming a little late because the global warming is taking effect and brings more rains to the desert. We already see oasis growing bigger. If this trend goes on we will have even a green Sahara in the next 300 years. Humidity will be higher, but not disturbing like in some coastal areas. The cooling effect of lakes will be there but higher humidity will give us a feeling of heat.
El_Nose
Jul 30, 2010

Rank: 5 / 5 (1)
wait -- why are we destroying a desert again??? because we haven't shown any signs af running out of room in habitable places yet -- but we should upset desert ecosystems???

this is non-necessary. Its a great experiment but a very costly one. -- and do not forget that deserts are a lot of sand - mostly because they were the bottom of long dried out seas -- but its a little dificult to grow things in sand, you NEED soil.
TegiriNenashi
Jul 30, 2010

Rank: 1 / 5 (1)
How about much smaller and more realistic project -- sea level canal connecting Salton Sea with Gulf of California?
mrlewish
Aug 01, 2010

Rank: 4.5 / 5 (2)
How about this. Stop having so many durn kids! Then you won't have to have people living in a desert.
Newbeak
Aug 01, 2010

Rank: 5 / 5 (1)
We are near or below the population replacement rate already in the developed world."Durn kids" are required to support an ageing population,otherwise we will be in a situation like in Japan,where the country is rapidly greying.
Choice
Aug 01, 2010

Rank: 5 / 5 (1)
Wait a minute, if you're going to build 30 meter lakes and then islands inside these lakes why not just go to a place that is about 30 meters deep in the ocean and build an island there? I suppose for land-locked desertified and flat countries this might be an interesting idea. For everyone else, using coastal waters would be much easier.
Arikin
Aug 02, 2010

Rank: not rated yet
Actually, Choice there are many plans for floating homes and larger buildings. They have most of the same problems as this project would. The main reasons these plans don't take off, not enough pressure to do so, money, resources, power, transportation, money, and money.

But some coastal areas do have floating homes. They are attached to large anchoring poles and go up and down with the tide. But they have seasonal flooding therefor the need.
sender
Aug 06, 2010

Rank: not rated yet
Add some plasmafication systems to reclamate the saltwater and create lakes of fresh water, watch desert greenification take force. Added bonus of having garbage and recycling taken care of as well.
Rank 3.5 /5 (24 votes)
Related Stories
Relevant PhysicsForums posts
  • Discrepancy between oxygen and carbon-dioxide levels
    created15 hours ago
  • where gems are found in the world
    created18 hours ago
  • Wind Waves in Reservoir ~ Wind run-up and Wind set-up
    createdFeb 08, 2012
  • Balance of oxygen in the atmosphere
    createdFeb 01, 2012
  • The case for a methanol-based economy
    createdJan 30, 2012
  • Weather in a rotating cylinder
    createdJan 25, 2012
  • More from Physics Forums - Earth

More news stories

Could Venus be shifting gear?

(PhysOrg.com) -- ESA’s Venus Express spacecraft has discovered that our cloud-covered neighbour spins a little slower than previously measured. Peering through the dense atmosphere in the infrared, the ...

Space & Earth / Space Exploration

created 3 hours ago | popularity 5 / 5 (4) | comments 4 | with audio podcast

Humans may have helped the decline of African rainforests 3000 years ago

(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...

Space & Earth / Environment

created 7 hours ago | popularity 5 / 5 (3) | comments 8 | with audio podcast report

Clam fields found at deep, low-temperature Mariana vents

(PhysOrg.com) -- Scientists have marveled at the unusual life forms thriving at high temperature hydrothermal vents of the deep ocean.

Space & Earth / Earth Sciences

created 4 hours ago | popularity not rated yet | comments 0 | with audio podcast

Mars Science Laboratory computer issue resolved

(PhysOrg.com) -- Engineers have found the root cause of a computer reset that occurred two months ago on NASA's Mars Science Laboratory and have determined how to correct it.

Space & Earth / Space Exploration

created 4 hours ago | popularity 5 / 5 (5) | comments 2 | with audio podcast

Two new moons for Jupiter

Advances in technology have lead to the discovery of new planets outside of our Solar System, and now even new moons in our own backyard.

Space & Earth / Space Exploration

created 3 hours ago | popularity not rated yet | comments 2


New understanding of DNA repair could eventually lead to cancer therapy

A research group in the Faculty of Medicine & Dentistry at the University of Alberta is hoping its latest discovery could one day be used to develop new therapies that target certain types of cancers.

Hovering not hard if you're top-heavy, researchers find

Top-heavy structures are more likely to maintain their balance while hovering in the air than are those that bear a lower center of gravity, researchers at New York University's Courant Institute of Mathematical Sciences ...

Grass to gas: Researchers' genome map speeds biofuel development

Researchers at the University of Georgia have taken a major step in the ongoing effort to find sources of cleaner, renewable energy by mapping the genomes of two originator cells of Miscanthus x giganteus, a large perenn ...

Night, weekend delivery OK for babies with birth defects

Weekday delivery is no better than night or weekend delivery for infants with birth defects, according to a new study presented today at The Pregnancy Meeting, the Society for Maternal-Fetal Medicine's annual conference. ...

Sonic Cradle lands spot in TED exhibition

A Simon Fraser University graduate student project that melds music, meditation and modern technology has landed a rare spot as an exhibit at TEDActive 2012 in Palm Springs, California this month.

Drug halts organ damage in inflammatory genetic disorder

A new study shows that Kineret (anakinra), a medication approved for the treatment of rheumatoid arthritis, is effective in stopping the progression of organ damage in people with neonatal-onset multisystem inflammatory disease ...