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Spotty coverage: Climate models underestimate cooling effect of daily cloud cycle
Princeton University ^ | January 10, 2018 | by Morgan Kelly, Princeton Environmental Institute

Posted on 01/10/2018 10:11:25 AM PST by Oldeconomybuyer

Princeton University researchers have found that the climate models scientists use to project future conditions on our planet underestimate the cooling effect that clouds have on a daily — and even hourly — basis, particularly over land.

The researchers report in the journal Nature Communications that models tend to factor in too much of the sun’s daily heat, which results in warmer, drier conditions than might actually occur. The researchers found that inaccuracies in accounting for the diurnal, or daily, cloud cycle did not seem to invalidate climate projections, but they did increase the margin of error for a crucial tool scientists use to understand how climate change will affect us.

“It’s important to get the right result for the right reason,” said corresponding author Amilcare Porporato, a professor of civil and environmental engineering and the Princeton Environmental Institute. “These errors can trickle down into other changes, such as projecting fewer and weaker storms. We hope that our results are useful for improving how clouds are modeled, which would improve the calibration of climate models and make the results much more reliable.”

By capturing the timing and thickness of the daily cloud cycle on a global scale, however, Yin and Porporato have provided scientists with a tool for confirming if climate models aptly portray cloud formation and the interaction between clouds and the atmosphere.

“The global coverage and emphasis on both ‘timing’ and ‘amount’ are notable. As far as I am aware, this is the first study to explore this manifold of models in such a coherent way,” Katul said. “I am sure this type of work will offer new perspectives to improve the representation of clouds. I would not be surprised to see this paper highly cited in future IPCC [U.N. Intergovernmental Panel on Climate Change] reports.”

(Excerpt) Read more at princeton.edu ...


TOPICS: Constitution/Conservatism; Culture/Society; Government; News/Current Events
KEYWORDS: fakescience; globalwarming; hoax; models; socialism

1 posted on 01/10/2018 10:11:25 AM PST by Oldeconomybuyer
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To: Oldeconomybuyer

These “scientists” need to carefully calibrate their tools for counting the numbers of angels on the head of a pin—their continuing grant money depends on it!


2 posted on 01/10/2018 10:14:42 AM PST by cgbg (Hidden behind the social justice warrior mask is corruption and sexual deviance.)
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To: cgbg

It’s all those dang people storing their music and photos in the “cloud”. I knew this would come to no good.


3 posted on 01/10/2018 10:19:05 AM PST by rktman (Enlisted in the Navy in '67 to protect folks rights to strip my rights. WTH?!)
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To: Oldeconomybuyer
From The Link:

“Katul said...”I would not be surprised to see this paper highly cited in future IPCC [U.N. Intergovernmental Panel on Climate Change] reports.”

Cited in future reports?

Only if the ADJUSTED models predict more warming!

4 posted on 01/10/2018 10:21:21 AM PST by zeestephen
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To: Oldeconomybuyer
Funny! While sitting in on and participating in a "Global Warming" class as an adult at a different Ivy, the professor was making a point about the incident radiation at the top of the atmosphere and the temperature on the earth's surface. I said to him, "You seem to be ignoring the effect of clouds." His reply: "Yes, that is a problem."

ML/NJ

5 posted on 01/10/2018 10:22:32 AM PST by ml/nj
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To: Oldeconomybuyer

Meteorologists can barely forecast the weather three to four days away, and oft times not even that. But these so-called climatologists, politicians and actors cast their lots with those of witch doctors who actually beat them at the odds more often than not.


6 posted on 01/10/2018 10:23:02 AM PST by onedoug
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To: rktman

Ah ha!

This explains everything!


7 posted on 01/10/2018 10:23:24 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: Oldeconomybuyer

Also, as the Sun’s magnetic activity decreases (and has been decreasing, overall, for several decades), the cosmic rays hitting the Earth’s atmosphere increases.

With that cosmic-ray increase, cloud cover also increases.

And that cosmic-ray-induced cloud-cover-increase can be demonstrated in a laboratory with the proper apparatus. It does not rely on unvalidated computer simulations.


8 posted on 01/10/2018 10:28:00 AM PST by DuncanWaring (The Lord uses the good ones; the bad ones use the Lord.)
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To: Oldeconomybuyer
Princeton University researchers have found that the climate models scientists use to project future conditions on our planet underestimate the cooling effect that clouds have on a daily — and even hourly — basis, particularly over land.

No sh*t! I've been saying this for over a decade. Water Vapor is the dominant factor in Global Cooling, and failure to recognize this, makes all the global warming models wrong.

I keep saying that if their theories were correct, we would be an 800 degree hell like Venus. Fortunately water vapor causes a negative feedback effect instead of a positive one.

9 posted on 01/10/2018 10:37:18 AM PST by DiogenesLamp ("of parents owing allegiance to no other sovereignty.")
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To: Oldeconomybuyer

They never include temps from Canada and Russia ,D’oh


10 posted on 01/10/2018 10:41:20 AM PST by butlerweave
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To: Oldeconomybuyer

Them: “This is settled science!”
Me: “What about clouds?”
Them: F$%# Y^# you science-denying moron!”


11 posted on 01/10/2018 11:11:04 AM PST by bigbob (People say believe half of what you see son and none of what you hear - M. Gaye)
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To: Oldeconomybuyer

As we all know form our vast studies of climate, the sun has absolutely no effect on cloud cover. So rejiggering the algorithms for cloud cover cooling should give us the predictions we are looking for to bamboozle the public into supporting our efforts and life stye also giving us more money to look at things again with ever more expensive computers parties, publications, drugs and the like. Thank You.


12 posted on 01/10/2018 11:15:11 AM PST by PIF (They came for me and mine ... now it is your turn ...)
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To: Oldeconomybuyer
The researchers found that inaccuracies in accounting for the diurnal, or daily, cloud cycle did not seem to invalidate climate projections, but they did increase the margin of error for a crucial tool scientists use to understand how climate change will affect us.

Oh the absurd lip service which must be given! Of course they don't invalidate the projections....Empirical results have already done that years ago.

13 posted on 01/10/2018 1:23:52 PM PST by AndyTheBear
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