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Dubai is making its own fake rain to beat 122°F heat

independent.co.uk

11–20 of 107 posts

Re: Dubai is making its own fake rain to beat 122°F heat

#11

The other comments here talk about hoarding potential for rain in the future and depriving others of it but what about weaponising it? You could potentially annihilate your enemy by generating masses of rainfall and destroying their infrastructure could you not? It wouldn't be as targetted as a missile strike but you could easily say "it wasn't me!"...

[deleted]

Re: Dubai is making its own fake rain to beat 122°F heat

#12

Are there any known side-effects of inducing rain in an unusual place like this? The weather is a complex system, so I hesitate to speculate too much, but would it reduce rainfall elsewhere? With geopolitical tensions rising over rights to the Nile, I wonder if rainfall patterns could follow a similar trend.

The amazon rain forest relies on minerals blown from dust storms in the Sahara desert, so therefore terraforming the Sahara would have a negative effect on the amazon. Source https://youtu.be/2hmAeLYMrQg

Re: Dubai is making its own fake rain to beat 122°F heat

#13
post #10

aka cloud seeding, a lot of country does this https://en.wikipedia.org/wiki/Cloud_seeding

> The enhanced rain is created using drone technology that unleashes electrical charges into clouds (..)

> Applying electrical shocks to clouds is preferred as it doesn’t require the use of chemicals.

So, a bit different than cloud seeding

Re: Dubai is making its own fake rain to beat 122°F heat

#14
post #3

Earlier quoted context omitted.

> Only thing I can think of is perhaps that could reduce rainfall in neighboring areas which would have received the rain. …which seems significant, no? If you fast forward to a water deprived future (uh, present?) and give nation states the ability to take water that would have fallen on neighbouring countries and take it for themselves… I don’t see how that ends well. Don’t get me wrong, the technology is fascinati…

The Tragedy of the Commons takes to the skies.

Monty Python's Flying Surcharge

Re: Dubai is making its own fake rain to beat 122°F heat

#15
post #10

aka cloud seeding, a lot of country does this https://en.wikipedia.org/wiki/Cloud_seeding

> The enhanced rain is created using drone technology that unleashes electrical charges into clouds (..) > Applying electrical shocks to clouds is preferred as it doesn’t require the use of chemicals. So, a bit different than cloud seeding

The idea is pretty similar, in that the aim to to create cloud droplets large enough that precipitation forms in those clouds (hygroscopic cloud seeding). This is a little different from glaciogenic cloud seeding, where you aim to generate ice in a supercooled cloud (which has historically has been more common).

Glaciogenic seeding typically uses something like silver iodide (to nucleate ice crystals). For the clouds over the UAE (which are not supercooled), table salt would be more likely to be used. This idea is that it can create cloud droplets that are large enough to begin the collision-coalesence process.

Re: Dubai is making its own fake rain to beat 122°F heat

#16
post #3
post #2

> The enhanced rain is created using drone technology that unleashes electrical charges into clouds in order for them to clump together and form precipitation...Applying electrical shocks to clouds is preferred as it doesn’t require the use of chemicals. Sounds pretty innocuous. I'm looking forward to reading comments about how this is dangerous and could cause unintended consequences. Only thing I can think of is pe…

> Only thing I can think of is perhaps that could reduce rainfall in neighboring areas which would have received the rain. …which seems significant, no? If you fast forward to a water deprived future (uh, present?) and give nation states the ability to take water that would have fallen on neighbouring countries and take it for themselves… I don’t see how that ends well. Don’t get me wrong, the technology is fascinati…

This already happens with dams which is arguably more devastating than rain cloud seeding.

Re: Dubai is making its own fake rain to beat 122°F heat

#17
I'm surprised they get even 4 inches of rain a year, but it seems like it's almost all in the winter. Assuming they can get another 4 inches during the summer, they can get as much rain as Phoenix. I wonder if this can dramatically change the landscape.

Re: Dubai is making its own fake rain to beat 122°F heat

#18
Evaporative cooling for the win.

I wish (any) parks had this built in (ignoring splash/water parks), because it would be easier justifying brining kids out in this type of heat (especially for parks with no shade due to poor design).

It would also bring more community together to have outdoor areas that are dramatically cooler than the surroundings.

Re: Dubai is making its own fake rain to beat 122°F heat

#19

Are there any known side-effects of inducing rain in an unusual place like this? The weather is a complex system, so I hesitate to speculate too much, but would it reduce rainfall elsewhere? With geopolitical tensions rising over rights to the Nile, I wonder if rainfall patterns could follow a similar trend.

The amazon rain forest relies on minerals blown from dust storms in the Sahara desert, so therefore terraforming the Sahara would have a negative effect on the amazon. Source https://youtu.be/2hmAeLYMrQg

Wait 20,000 years and they’ll swap positions.

https://phys.org/news/2019-01-sahara-swung-lush-conditions-y...

Re: Dubai is making its own fake rain to beat 122°F heat

#20

I'm surprised they get even 4 inches of rain a year, but it seems like it's almost all in the winter. Assuming they can get another 4 inches during the summer, they can get as much rain as Phoenix. I wonder if this can dramatically change the landscape.

They probably get them in a few weather events every year. I lived in a place in the South of Portugal that, on paper, gets has much rain as, say, Berlin. The catch is that it would fall over 3 or 4 very strong downpours causing flooding and devastation.
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