The Environment Forum now decidedly one sided!!

[jc456]

Incorrect. Colder temperatures - for the same water vapor - increase the density of the air which increases atmospheric pressure. But usually colder temperatures will have less water vapor in the air so that's probably where the confusion comes from.

You really are a disciple of EMH.

talk to this site

How Does Temperature Affect Barometric Pressure?

Barometric pressure is another term for air pressure, or atmospheric pressure. The behavior of air molecules is affected by changes in temperature, resulting in changes in barometric pressure.

www.sciencing.com

 

[ding]

it isn't? How can that be, everyone uses global meaning that every region of the globe affects warming on a day or month at the same time.

It's because you think the atmosphere is a fixed volume that you believe warmer air increases atmospheric pressure.

 

[ding]

talk to this site

How Does Temperature Affect Barometric Pressure?

Barometric pressure is another term for air pressure, or atmospheric pressure. The behavior of air molecules is affected by changes in temperature, resulting in changes in barometric pressure.

www.sciencing.com

It's wrong.

 

[jc456]

Maybe try googling it?

I have, and do you know what, there isn't any experiment that shows CO2 warming. hmmmmmmmmm

It's because you think the atmosphere is a fixed volume that you believe warmer air increases atmospheric pressure.

You think you know what I think now? wow. get enough of yourself?

 

[jc456]

It's wrong.

science is wrong now. ok

Maybe you're wrong.

 

[ding]

I have, and do you know what, there isn't any experiment that shows CO2 warming. hmmmmmmmmm

You think you know what I think now? wow. get enough of yourself?

I can't fix your stupidity.

 

[ding]

science is wrong now. ok

Maybe you're wrong.

In this specific instance... yes. 100%. Maybe try googling it and looking at how many sites support that silly assumption that a less dense air increases atmospheric pressure.

warmer air does not increase atmospheric pressure; in fact, it actually decreases atmospheric pressure because warm air is less dense than cold air, meaning the air molecules are spread further apart, exerting less pressure on their surroundings.

 

[jc456]

I can't fix your stupidity.

I never asked you to fix anything. You just seem to think highly of yourself if you ask me. I usually agree with you, but not this time. You're wrong. You're scientifically wrong. Now you're telling me a science group is wrong. And, you provide no evidence of your position. that's not debating, present your date that corrects what I brought in. That's debating.

 

[jc456]

In this specific instance... yes. 100%. Maybe try googling it and looking at how many sites support that silly assumption that a less dense air increases atmospheric pressure.

warmer air does not increase atmospheric pressure; in fact, it actually decreases atmospheric pressure because warm air is less dense than cold air, meaning the air molecules are spread further apart, exerting less pressure on their surroundings.

Warm air is very heavy when I'm out in it. Makes me sweat.

 

[ding]

I never asked you to fix anything. You just seem to think highly of yourself if you ask me. I usually agree with you, but not this time. You're wrong. You're scientifically wrong. Now you're telling me a science group is wrong. And, you provide no evidence of your position. that's not debating, present your date that corrects what I brought in. That's debating.

Someone needs to.

 

[ding]

Warm air is very heavy when I'm out in it. Makes me sweat.

That's an idiotic statement and idiotic logic. Warmer air is not more dense. Warmer air is less dense.

warmer air does not increase atmospheric pressure; in fact, it actually decreases atmospheric pressure because warm air is less dense than cold air, meaning the air molecules are spread further apart, exerting less pressure on their surroundings.

The atmosphere is not a fixed volume. So there is no buildup of pressure.

 

[ding]

I never asked you to fix anything. You just seem to think highly of yourself if you ask me. I usually agree with you, but not this time. You're wrong. You're scientifically wrong. Now you're telling me a science group is wrong. And, you provide no evidence of your position. that's not debating, present your date that corrects what I brought in. That's debating.

Yes. They are wrong. Go research it and get back to me.

 

[jc456]

Yes. They are wrong. Go research it and get back to me.

 

[ding]

That balloon is a fixed volume. The atmosphere is not.

Do you know who NOAA is?

Pressure

• Air mass - huge volume of air that is relatively uniform in temperature and water vapor.
  • 1. Pressure increases with warmer temperatures (in closed container)
  • 2. But atmosphere has no walls, so heated air expands, becomes less dense. Thus, net result is that pressure actually decreases when heated.
    • a. Greater activity of the heated molecules increases the spacing between neighboring molecules and thus reduces air density. The decreasing air density then lowers the pressure exerted by the air. Warm air is thus lighter (less dense) than cold air and consequently exerts less pressure.
  • 3. Moist air is less dense than dry air!!
  • 4. Sinking air increases pressure at surface, and ascent decreases pressure at surface.
  • 5. In addition air pressure changes caused by variations of temperature and water vapor content, air pressure can also be influenced by the circulation pattern of air.

 

[jc456]

That balloon is a fixed volume. The atmosphere is not.

Do you know who NOAA is?

Pressure

• Air mass - huge volume of air that is relatively uniform in temperature and water vapor.
  • 1. Pressure increases with warmer temperatures (in closed container)
  • 2. But atmosphere has no walls, so heated air expands, becomes less dense. Thus, net result is that pressure actually decreases when heated.
    • a. Greater activity of the heated molecules increases the spacing between neighboring molecules and thus reduces air density. The decreasing air density then lowers the pressure exerted by the air. Warm air is thus lighter (less dense) than cold air and consequently exerts less pressure.
  • 3. Moist air is less dense than dry air!!
  • 4. Sinking air increases pressure at surface, and ascent decreases pressure at surface.
  • 5. In addition air pressure changes caused by variations of temperature and water vapor content, air pressure can also be influenced by the circulation pattern of air.

yep, humidity is less dense than dry air, that's why baseballs fly farther in a humid ball park.

 

[ding]

NDBC - Science Education - Does air pressure vary with respect to air temperature? - Answer

National Data Buoy Center - Science Education - Does air pressure vary with respect to air temperature? - Answer

www.ndbc.noaa.gov

Lets examine some air pressure data from the Gulf of Mexico. The following data was measured at Station 42001 in the central Gulf. In January, when air temperatures average 20.7 C (69F), the average pressure is 1019.1 mb. In June, when the average air temperature is 27.6C (81.7F), the average air pressure is 1015.0 mb. As you can see, air pressure does vary according to temperature. Cold air is more dense than warm air, i.e., it weighs more. As a result, it tends to sink. Warm air, on the other hand, is less dense. Therefore, it weighs less and tends to rise. Meteorologists say that warm air is buoyant.

 

[ding]

yep, humidity is less dense than dry air, that's why baseballs fly farther in a humid ball park.

That explanation from NOAA was on temperature, not humidity.

• 1. Pressure increases with warmer temperatures (in closed container)
• 2. But atmosphere has no walls, so heated air expands, becomes less dense. Thus, net result is that pressure actually decreases when heated.

And here's some real world data.

Lets examine some air pressure data from the Gulf of Mexico. The following data was measured at Station 42001 in the central Gulf. In January, when air temperatures average 20.7 C (69F), the average pressure is 1019.1 mb. In June, when the average air temperature is 27.6C (81.7F), the average air pressure is 1015.0 mb. As you can see, air pressure does vary according to temperature. Cold air is more dense than warm air, i.e., it weighs more. As a result, it tends to sink. Warm air, on the other hand, is less dense. Therefore, it weighs less and tends to rise. Meteorologists say that warm air is buoyant.

 

[ding]

talk to this site

How Does Temperature Affect Barometric Pressure?

Barometric pressure is another term for air pressure, or atmospheric pressure. The behavior of air molecules is affected by changes in temperature, resulting in changes in barometric pressure.

www.sciencing.com

If you scroll down you will see three references listed. Only one is about pressure versus temperature. It was geared for teaching children. Pretty odd that the link you shared would use a kids lesson as a technical reference. But here's the good part.... the kid's lesson got it right. So that goofy link that you think is so definitive doesn't even agree with its own cited reference.

Air pressure can also change with the temperature. Warm air rises resulting in lower pressure. On the other hand, cold air will sink making the air pressure higher. This is where the terms “low pressure” and “high pressure” come from.​

​

Air Pressure Can Change with the Temperature - Tree House Weather Kids - University of Illinois Extension

 

[EMH]

This is a chart of Mars Surface Air Pressure, and as anyone with an IQ over 5 who understands Mars' elliptical orbit, what the chart shows is a clear correlation between Mars temperature and Mars SAP.

Planetary SAP is correlated with temperature.


CO2 FRAUD is reduced to arguing "hot air rises." So what. When THE PLANET AS A WHOLE WARMS, SAP GOES UP


PROBLEM = EARTH SAP IS NOT GOING UP, IT IS ACTUALLY SLIGHTLY GOING DOWN = EARTH NOT WARMING, NO NET ICE MELT ONGOING = CO2 FRAUD BUSTED

Pluto and Surface Air Pressure

https://science.nasa.gov/dwarf-planets/pluto/facts/ Pluto has a thin, tenuous atmosphere that expands when it comes closer to the Sun and collapses as it moves farther away – similar to a comet. The main constituent is molecular nitrogen, though molecules of methane and carbon monoxide have...

www.usmessageboard.com

 

[ding]

when you show me it can trap heat I'll bite.

I have.