Why does sun feel so intense?

[BrianE22]

I'm sure it's been talked to death but I'll post it anyways. I personally don't think temperatures in the shade have changed much but step into the sun and it's terrible. So what is it about the GH gases that make the sun feel so hot? Seems like radiation to me.

 

[TugboatEng]

Their was a volcanic eruption recently that ejected a massive amount of water into our upper atmosphere which is expected to cause weakening of the ozone layer.

https://phys.org/news/2022-08-atmosphere-tonga-eruption-weaken-ozone.html

 

[dik]

It might be other things that compromised the ozone layer...

So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[IRstuff]

I personally don't think temperatures in the shade have changed much

Then you are much alone in your opinion. Air temperatures are usually measured in the shade, so that belies your assertion. People dying from heat exhaustion in the US and in Europe typically died in the shade.

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[TugboatEng]

Well that is true. All weather thermometers are mounted in protective enclosures to prevent them from measuring radiant heating, the temperatures they measure in this shade are only one to two degrees higher than historical values.

But one thing that has changed is the type of clothing we wear. In the past we used to wear clothing made from cotton or wool but nowadays nearly everything is made from polyester. Add to that, clothing is made lighter and thinner than ever before to minimize cost. Clothing does have a sun protection factor, it does not completely block out sunlight. You can look that up for various types of garments.

 

[GregLocock]

garments? autocorrect strikes again.

Well that's a funny thing isn't it. The satellites aren't measuring in the shade, yet the correlation to the ground based adjusted surface shaded temperature is good.

Cheers

Greg Locock


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[dik]

It might just be me... but the sun feels hotter than I remember as a kid... Even as a skinny kid, I never liked hot weather...

So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[GregLocock]

Well we should have measures of annual solar irradiance for some locations, here it is for the whole of planet A

Oh noes it's been dropping since 1960, if you believe we can measure that to an accuracy of 0.1% over 50 years.

Cloud cover, both visible and invisible, is far more important. As I remember the suspension of civilian flights over the USA due to 911 caused a perceptible change in temperatures. Here we go.

https://web.archive.org/web/2016041...courses/pcc587/ref/Travis-etal2002_Nature.pdf

Cheers

Greg Locock


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[TugboatEng]

That link wants to set my pocketbook way back. As much as I support said machine, can you give us a summary? Did temperatures increase due to less moisture in the atmosphere?

 

[GregLocock]

the web archive one? that should be free. I haven't paid a sub. here it is

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[LittleInch]

I personally don't think temperatures in the shade have changed much but step into the sun and it's terrible.

Less hair maybe?

Plus you get more sensitive to sun as you get older ( less skin fat etc)

So think it's more like "what is it about getting older which makes the sun feel hotter...."

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[dik]

Thanks Greg... I guess it's just old age catching up...

So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[BrianE22]

Looks like the ozone layer blocks mostly UV radiation. Are there other wavelengths that cause masses on earth to heat up? I though IR was the biggie.

Do solar radiation graphs reflect all wavelengths hitting the earth? I'm guessing, like above, that some wavelengths do more heating.

you get more sensitive to sun as you get older

I was wondering about that. I also burn easier. I'm pretty sure I have more fat now though ("skin fat" different?). I've a bit less hair but so far still full on top (dark hair has turned mostly gray).

I'm slowly turning into a believer (Green House gasses = higher temperatures). Looks like the US alone will be spending trillions of dollars a year to combat the problem. I'd like to think it is money well spent.

 

[TugboatEng]

UV is part of the total energy from the sun that impacts earth. It all causes heating.

 

[rb1957]

"I'd like to think it is money well spent." ... yeah, we all hope so (and most of us are disillusioned by reality).

Though we hate to say it, the issue is political. Politicians will spend money as their electorate want, until the electorate (and the opposition) says "too much tax" and everything'll change (again).

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[dik]

Something new...

https://www.space.com/auroras-blast-hole-ozone-layer

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[GregLocock]

FWIW there has been no change in insolation on an annual basis in the last 4 years according to my solar panels. So one possibility is that they are degrading at the same rate as the sun's output is increasing. OTOH the last couple of years have been La Nina, which means cooler weather and rain, which has certainly been noticeable.

Cheers

Greg Locock


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[IRstuff]

The latest satellite measurements seem to be showing an increase, but it's a puny percentage on the order of 0.1%, and not likely to be detectable by humans.

https://spot.colorado.edu/~koppg/TSI/TSI_TSIS-1_sm.png

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[TugboatEng]

Although humans are to blame for much of the ozone layer's depletion,

Of course they have to lead the article with this despite its irrelevance to the story.


Of course they made no mention of all of that water injected into the upper atmosphere by a recent volcanic eruption. How does this affect their observation? Did they take this into account? Do they even know about it? Another low quality article.

 

[enginesrus]

Yes dik the ozone layer was ruined by high and low altitude bomb tests years ago.