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

independent.co.uk

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

#91

Post by mensetmanusman »

singlow wrote: post #77
mensetmanusman wrote: post #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.

> brining kids out in this type of heat But dry-brining is all the rage right now anyway.

Ha, autocorrect has gone crazy on my iPhone, it replaces the word ‘has’ with ‘Hass’ as well…

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

#93

Post by kop316 »

dcolkitt wrote: post #47

This is actually the reason why Miami is one of the few major American cities that's never broken 100 F in recorded history. When temperatures rise significantly above 90, then the chance of rain goes to 100%, which cools things back down. It's pretty much why you get clockwork torrential downpours every afternoon in Florida summers.

Would you minding explaining the phenomenon in a bit more detail, if you could?

I thought that as air temperature rises, the air is able to absorb more heat, not less. And I thought rain was essentially the fact that there is too much moisture in the air, so it condenses. So this is counterintuitive to me (but I am likely missing something).

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

#94

Post by ultrarunner »

soheil wrote: post #92

> The monsoon-like downpour drenches a busy highway, Why is the word monsoon used for countries in the east and heavy rainfall or other words in the west? Is there a scientific difference?

My understanding is that monsoonal patterns are a result of seasonal heat causing a rising air column, which is then replaced by wetter air from over (relatively) nearby oceans. Wikipedia says that's no longer the preferred understanding, but then goes on to describe exactly what I said, so consult your local meteorologist. At any rate, "Monsoon" is a commonly used word in Phoenix understood to mean seasonal rain storms. This is in contrast to just "rain" which is not necessarily monsoonal in nature. We do get rain in the winter, occasionally, but it is not the monsoon.

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

#95

Post by b112 »

peeters wrote: post #8
afavour wrote: 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…

It's not like this is a new concept. Geopolitical considerations come into play all the time with shared waterbodies. Canada and the U.S. have treaties governing the Great Lakes, Egypt threatens war with Ethiopia over the dam on the Blue Nile, etc.

Indeed

https://columbiainsight.org/how-and-why-to-fix-the-u-s-canad...

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

#96

Post by lyaa »

truculent wrote: post #7

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.

Not in this case.

The vast majority of the population of the UAE lives in coastal cities and that is where the rain is induced. To the east, west, and north you have large bodies of water and to the south a (mostly) empty desert.

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

#97

Post by google234123 »

fjabre wrote: post #52
nose wrote: post #39

Could this be used in California as an additional fire extinguishing method?

Home to some of the best and brightest engineers in the world and California is still figuring how many firemen, goats and firetrucks to send. Where are Google, Facebook, Apple, SpaceX, California state gov? And Musk is still focused on LA traffic jams. I guess the worst fires in California state history are not enough to sway the titans of industry into action. Even though these fires are happening in their back yar…

Neither side (the government and these companies) want to get involved with the other

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

#98

Post by blooalien »

dylan604 wrote: post #41
thebean11 wrote: post #30

Earlier quoted context omitted.

If you have the ability to freely fly a bunch of drones in enemy territory there’s a lot of stuff you can do.

No need to invade! You could just build a large antenna array to control the weather: https://presscore.ca/news/haarp-mandated-to-create-floods-to... There are some crazy stories related to the HAARP program including opening holes in the ozone layer which caused instaneous skin burning to anyone caught under the hole. Even back in the early days of the internet, it was obvious how the conspiracy circles were going t…

Crazy thing about the "tinfoil hatters" is that they'll fight to the death to defend their pet conspiracy, but it's impossible for them to believe the much more plausible conspiracy theory that certain huge corporate interests conspired to sell out the entirety of humanity for ridiculous gobs and truckloads of short-term profits.

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

#99

Post by rini17 »

kop316 wrote: post #93
dcolkitt wrote: post #47

This is actually the reason why Miami is one of the few major American cities that's never broken 100 F in recorded history. When temperatures rise significantly above 90, then the chance of rain goes to 100%, which cools things back down. It's pretty much why you get clockwork torrential downpours every afternoon in Florida summers.

Would you minding explaining the phenomenon in a bit more detail, if you could? I thought that as air temperature rises, the air is able to absorb more heat, not less. And I thought rain was essentially the fact that there is too much moisture in the air, so it condenses. So this is counterintuitive to me (but I am likely missing something).

The warmer air over land rises up, cooling in the process. But then water in it condenses and gives up heat, that supports the upward flow. So it's kind of runaway process. Eventually when there's too much water condensed, then it overcomes the upward flow and rains down.

How it happens, and whether it happens at all, whether the rain won't evaporate in midair etc. depends on variety of conditions.

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

#100

Post by kop316 »

rini17 wrote: post #99
kop316 wrote: post #93

Earlier quoted context omitted.

Would you minding explaining the phenomenon in a bit more detail, if you could? I thought that as air temperature rises, the air is able to absorb more heat, not less. And I thought rain was essentially the fact that there is too much moisture in the air, so it condenses. So this is counterintuitive to me (but I am likely missing something).

The warmer air over land rises up, cooling in the process. But then water in it condenses and gives up heat, that supports the upward flow. So it's kind of runaway process. Eventually when there's too much water condensed, then it overcomes the upward flow and rains down. How it happens, and whether it happens at all, whether the rain won't evaporate in midair etc. depends on variety of conditions.

Ohhh that makes sense. And since they are so close to water, there is always an amount of humidity in the air too I suppose.

Thank you for the explanation!

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