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(Phys Org2)   Painting roofs white to combat urban-heat-island effect might be causing reduced rainfall   (phys.org) divider line 30
    More: Fail, adverse effect, hydrology, urban heat island effect, statistical significance, urbanizations, urban plans, rains, Arctic sea ice  
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2897 clicks; posted to Geek » on 08 Sep 2012 at 8:04 AM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-09-08 08:23:01 AM
The comments section makes my head hurt.
 
2012-09-08 08:34:32 AM

Spoon over Marin: The comments section makes my head hurt.


Scientist smackdown!
 
2012-09-08 08:47:35 AM

Spoon over Marin: The comments section makes my head hurt.


Looks like a slightly-less-retarded version of a Fark AGW thread.
 
2012-09-08 08:48:56 AM

LouDobbsAwaaaay: Spoon over Marin: The comments section makes my head hurt.

Looks like a slightly-less-retarded version of a Fark AGW thread.


True.
 
2012-09-08 11:21:00 AM
images2.wikia.nocookie.net
Beware of unforeseen consequences
 
2012-09-08 11:24:19 AM
Why don't we just paint them forest green?
 
2012-09-08 11:32:50 AM

s1ugg0: Why don't we just paint them forest green?


4.bp.blogspot.com
 
2012-09-08 11:33:37 AM
In before the Fark scientists arrive
 
2012-09-08 11:41:04 AM
I would imagine that the heat island effect would act in a similar way to moving air masses, as a change in elevation over the heat island, causing more rainfall locally.

Not a weather expert, but I know something about thermodynamics.

It's my island.The heat island, it's mine.
 
2012-09-08 12:09:28 PM

s1ugg0: Why don't we just paint them forest green?


Why don't we just cover them with plants?
 
2012-09-08 12:13:36 PM

give me doughnuts: s1ugg0: Why don't we just paint them forest green?

Why don't we just cover them with plants?


urbangardencasual.com
 
2012-09-08 12:30:40 PM
Now I want to play Civ.

/which version shall i play
 
2012-09-08 12:34:35 PM
falstaffspen.files.wordpress.com
It might be time to revisit this wonderful story, only now, with worldwide proportions.
 
2012-09-08 12:59:04 PM

missiv: [falstaffspen.files.wordpress.com image 300x332]
It might be time to revisit this wonderful story, only now, with worldwide proportions.


Agrees.
upload.wikimedia.org
 
2012-09-08 01:38:01 PM

give me doughnuts: s1ugg0: Why don't we just paint them forest green?

Why don't we just cover them with plants?


In some countries they did that for a long time:

www.riemann-dach.de
 
F42
2012-09-08 02:09:18 PM
ftfa: A team of researchers from Arizona State University have found that warming resulting from megapolitan expansion is seasonally dependent, with greatest warming occurring during summer and least during winter.

Oh, good! I'm glad they had a team on that. A hard conundrum like that shouldn't be a burden on just one scientist.
 
2012-09-08 02:28:14 PM
Thanks, Obama.
 
2012-09-08 02:47:08 PM
Bermuda??

www.everettpotter.com

*They are whitewashed to keep the houses cool and as a "cleanliness gauge", as they are used to collect rain water for drinking.
We have no fresh water lakes or even a water table underground. Each house has its own tank.
 
2012-09-08 03:42:47 PM
Probably better to use a color that mimics what the local ground cover would be like.
 
2012-09-08 03:56:47 PM

Fritriac: give me doughnuts: s1ugg0: Why don't we just paint them forest green?

Why don't we just cover them with plants?

In some countries they did that for a long time:


Undortunately, not enough water in Arizona for that.

I wonder is solar panels would have a noticeable effect. Especially, if they're slightly elevated and shade the roof.
 
2012-09-08 04:05:29 PM

beakerxf: Fritriac: give me doughnuts: s1ugg0: Why don't we just paint them forest green?

Why don't we just cover them with plants?

In some countries they did that for a long time:

Undortunately, not enough water in Arizona for that.

I wonder is solar panels would have a noticeable effect. Especially, if they're slightly elevated and shade the roof.


If they used native plants (prickly pear, agave, etc) I would kind of expect that it would work pretty well.

Ultimately though since this is based on computer projections, and even the NOAA computers had trouble predicting where Isaac was going to make landfall... I'm not holding my breath to see this proven true. Predicting the weather still isn't an exact science.
 
2012-09-08 04:06:15 PM
I should add that I love learning about weather, subscribe to weather.com for extra maps/etc, and have great respect for meteorologists. Not picking on them, just observing.
 
2012-09-08 05:26:02 PM
Phoenix? So we're talking 4% of about 8 inches of rainfall a year?
 
2012-09-08 10:26:19 PM

F42: ftfa: A team of researchers from Arizona State University have found that warming resulting from megapolitan expansion is seasonally dependent, with greatest warming occurring during summer and least during winter.

Oh, good! I'm glad they had a team on that. A hard conundrum like that shouldn't be a burden on just one scientist.


Well, yeah. Once you get past the first sentence, they explain that the team quantified another aspect of urbanization on climate. That's a good thing to know, particularly when the very discussion of climate has become hyper-politicized lately.
 
2012-09-08 10:48:57 PM
I said the same thing when Obama (or someone on his team) said this in 2007-2008. The heat just doesn't disappear.

Sure glad they had a TEAM figure this out..

/Who knew I was a team?
//If only there were a way to use the heat and turn it into energy...
/// Oh wait! You can!
 
2012-09-09 12:45:38 AM

StoPPeRmobile: Why don't we just cover them with plants?


You know, I was reading an article about that a while back? They actually mentioned encouraging creepers and such to grow - the plants would absorb the sunlight(keeping your building cool), provide a touch more insulation/moderation, help control moisture, etc... It seems that it was a common tactic back before air conditioners were available/common.

In my town the tourist information building has sod on the roof. Not sure how good of a tactic that is though.
 
2012-09-09 12:55:39 AM

Firethorn: StoPPeRmobile: Why don't we just cover them with plants?

You know, I was reading an article about that a while back? They actually mentioned encouraging creepers and such to grow - the plants would absorb the sunlight(keeping your building cool), provide a touch more insulation/moderation, help control moisture, etc... It seems that it was a common tactic back before air conditioners were available/common.

In my town the tourist information building has sod on the roof. Not sure how good of a tactic that is though.



There are several companies that now do exactly that here's one
It turns out the roofs are cost effective as the plants/soil act as an insulator.
 
2012-09-09 02:43:49 AM

ScreamingHangover: Firethorn: StoPPeRmobile: Why don't we just cover them with plants?

You know, I was reading an article about that a while back? They actually mentioned encouraging creepers and such to grow - the plants would absorb the sunlight(keeping your building cool), provide a touch more insulation/moderation, help control moisture, etc... It seems that it was a common tactic back before air conditioners were available/common.

In my town the tourist information building has sod on the roof. Not sure how good of a tactic that is though.


There are several companies that now do exactly that here's one
It turns out the roofs are cost effective as the plants/soil act as an insulator.


I remember something about a desalination plant in Australia that put sod and wild plants on different parts of the buildings. I think it was more for aesthetics, but a good idea nonetheless.

/Can you imagine homeowners having to mow their roofs?
//I made myself giggle
 
2012-09-09 11:49:23 AM

diaphoresis: I remember something about a desalination plant in Australia that put sod and wild plants on different parts of the buildings. I think it was more for aesthetics, but a good idea nonetheless.



The Natural History Museum of Utah (in Salt Lake) has made it both functional and artistic. The view from the 5th floor deck is spectacular, you barely feel as if you're on a building. (it's a very new building though, we'll see how it pans out over the years)

/Really cool place to visit!
 
2012-09-10 04:43:32 PM

diaphoresis: I said the same thing when Obama (or someone on his team) said this in 2007-2008. The heat just doesn't disappear.

Sure glad they had a TEAM figure this out..

/Who knew I was a team?
//If only there were a way to use the heat and turn it into energy...
/// Oh wait! You can!


It`s reflected out of the atmosphere as light instead of being converted to heat by hitting something absorbing. So, yes, heat doesn`t just dissapear once it is made but the light from the sun is not heat until it warms something by hitting it. UV and visible light are not IR.
 
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