Quote

https://www.bbc.co.uk/news/articles/cvgw3l7p79po

Capturing water from fog - on a large scale - could provide some of the driest cities in the world with drinking water.

This is what researchers in Chile have concluded after studying the potential of fog harvesting in the desert city of Alto Hospicio in the north of the country.

Average rainfall in the region is less than 0.19in (5mm) per year.

"Like a lot of cities, Alto Hospicio has its social problems," said lead researcher Dr Virginia Carter Gamberini, from Universidad Mayor. "There is a lot of poverty", she explained, and many people there have no direct access to the networks that supply clean water.

Many who live in the city's poorest communities rely on drinking water that is delivered by truck.

However, clouds of fog that regularly gather over the mountain city are an untapped source, researchers say.

Quote

Fog harvesting could provide water for arid cities

..except that it was in Dune..

https://en.wikipedia.org/wiki/Dune_(novel)

 

Windtrap/wind catcher

https://dune.fandom.com/wiki/Windtrap

 

Quote

The air of Arrakis was usually hot and dry. However, at night, when the air cooled, some moisture would develop. This moisture would then be carried by winds across the surface of the planet. Essentially a large air intake, the windtraps would capture this air so that the moisture could be extracted from it by the Fremen, after it condensed.

 

2 hours ago, studiot said:

Quote

https://www.bbc.co.uk/news/articles/cvgw3l7p79po

Capturing water from fog - on a large scale - could provide some of the driest cities in the world with drinking water.

This is what researchers in Chile have concluded after studying the potential of fog harvesting in the desert city of Alto Hospicio in the north of the country.

Average rainfall in the region is less than 0.19in (5mm) per year.

"Like a lot of cities, Alto Hospicio has its social problems," said lead researcher Dr Virginia Carter Gamberini, from Universidad Mayor. "There is a lot of poverty", she explained, and many people there have no direct access to the networks that supply clean water.

Many who live in the city's poorest communities rely on drinking water that is delivered by truck.

However, clouds of fog that regularly gather over the mountain city are an untapped source, researchers say.

Expand  

Very interesting indeed. Lovely to see a simple idea like this can be practical.

However it has to be recognised that this only works where there are regular fogs. The W coast of S America is special in that it has the cold Humboldt current coming up from the Antarctic, which forms fogs with regularity. I don't think this idea would be very transferable to other regions. 

Just now, exchemist said:

I don't think this idea would be very transferable to other regions. 

When did you last go up Ben Nevis ?

😀

Just now, Sensei said:

..except that it was in Dune..

https://en.wikipedia.org/wiki/Dune_(novel)

 

Windtrap/wind catcher

https://dune.fandom.com/wiki/Windtrap

 

 

Dune is Science Fiction which also involved telephathic powers and other stuff.

 

But thanks for the replies guys.

I saw a documentary video ~40 years ago being done in Chile coastal high lands, was black&white.  For sure was not then done with polypropilenes or modern plastics but some kind of netting vegetal fibers then.  Seen a couple of other documentaries in the last ~30 years revisiting the same; and one more lately reported as a high-tech-wow! discovery  of modern science.

Probably a chilean site may report since when it has been going on.

Edited:  added link---> https://search.brave.com/search?q=chile+obtencion+agua+de+la+niebla+costera+antiguedad&source=web

When I lived in Berkeley, California; every night rained under the trees from their leaves collecting the fog coming from the sea trough the San Francisco gate.

 

One of the comments shown on one of the pertinent links 

  https://www.bbc.com/mundo/participe/2009/04/090422_1224_participe_atrapanieblas_am https://www.bbc.com/mundo/participe/2009/04/090422_1224_participe_atrapanieblas_am 

 

Says... " It is not a novelty, I know those... ...since 1960"

 

Edited February 20Feb 20 by Externet
Polished.

•  

1 hour ago, studiot said:

When did you last go up Ben Nevis

Does Ben Macdui** count.? I was stranded  up there    in the fog overnight with another 17 yr old  friend in a small tent which  wetted  our clothes /sleeping blanket when we unavoidably touched the sides.

The morning came and we walked  down into the fog which cleared  aftrr 5 minutes absolutely  fortunately and undeservedly.

** next highest  in Scotland after Ben Nevis

 

And another extract mentioning a patent 

1 hour ago, studiot said:

When did you last go up Ben Nevis ?

😀

Dune is Science Fiction which also involved telephathic powers and other stuff.

 

But thanks for the replies guys.

Yeah and there is an arid city on the top of Ben Nevis, right? 😄

In fact I have only been up it once, on a May bank holiday in the 1990s. It was 22C in the glen at the bottom and we heard a cuckoo. At the top it was snow. 

 

Edited February 20Feb 20 by exchemist

Fog harvesting is a sustainable way to capture water in arid regions. While it can’t supply entire cities, it’s an effective, low-cost solution to support communities in fog-prone areas and should be part of a broader water strategy.

7 minutes ago, alexart145 said:

Fog harvesting is a sustainable way to capture water in arid regions. While it can’t supply entire cities, it’s an effective, low-cost solution to support communities in fog-prone areas and should be part of a broader water strategy.

Thanks +1

Perhaps London should return to the 'pea-soupers' of the early 20th century ?

😄

Edited August 27Aug 27 by studiot

1 hour ago, studiot said:

Thanks +1

It may interest you to know that I put fog harvesting into the Google AI, and got a summary nearly identical to that post. The new member may wish to read the site rules on AI use. And perhaps they could tell us what they want to discuss.

7 hours ago, studiot said:

Thanks +1

Perhaps London should return to the 'pea-soupers' of the early 20th century ?

😄

Fog in London is vanishingly rare. In the past it was due to atmospheric inversion combined with the smoke from coal fires.

5 hours ago, exchemist said:

Fog in London is vanishingly rare. In the past it was due to atmospheric inversion combined with the smoke from coal fires.

Yes smog, moisture plus pollution.

33 minutes ago, pinball1970 said:

Yes smog, moisture plus pollution.

Nearly all pollution I think, since we have had almost no fogs in London at all since about 1960. I remember one smog as a small child, maybe in 62 or 63, but that's all. Foggy days are about one per year now and never last more than a day or so.