Re: GreenHouse Gas, H2O?

On Jun 3, 11:58 pm, Dwib <dwibd...@xxxxxxxxx> wrote:
On Jun 1, 4:34?pm, smallpond <smallp...@xxxxxxxx> wrote:

If the CO2 is absorbing 99.999% of the IR, I wonder what is making
my skin warm when I stand in the sunlight. Any idea?

First, I'm referring to the bands of IR absorption that CO2 absorbs,
not the entire IR spectrum.

Second, I'm not sure if 99.999% is a correct absorption. From my wall
chart it's a very strong absorption band... that's all I can tell.

I could reword my question to be:
How is the atmospheric absorption of IR light by CO2 related to the
concentration of atmospheric CO2?

I imagine that above a certain CO2 concentration there will be a
negligible increase in IR energy absorbed. Is our atmosphere at this
critical concentration? Far below this point? Far above this point?

I'm hoping some climatologists read sci.physics and can clarify this
point.

Dwib

Fair questions all.
The next question is how to acquire the necessary
data scientifically, minimizing subjectivity, by getting
the politicians and axe grinders out of the loop.

The dream would be calibrating Earth's albedo across
the power input spectrum from the Sun, then in labs
calibrating the results using tunable lasers in a
chamber and then extrapolating.
That would in essence would be a specialized "analog
computer", where the gases are varied to sim atmospheres
as is the frequency to map out the power spectrum.
Regards
Ken S. Tucker

PS: Personally, I think climate change debate
resembles a school class spit ball fight than a
careful scientific debate.

.

Relevant Pages

  • Re: For RChung the Science Guy
    ... It is hardly to be expected that for CO2 doubling an increment of IR ... means there is no radiation left at those frequencies after 10 meters." ... measures a CO2 absorption opacity at (what I take ... of the atmosphere at different temp and pressure, ...
    (rec.bicycles.racing)
  • Re: For RChung the Science Guy
    ... It is hardly to be expected that for CO2 doubling an increment of IR ... means there is no radiation left at those frequencies after 10 meters." ... measures a CO2 absorption opacity at (what I take ... of the atmosphere at different temp and pressure, ...
    (rec.bicycles.racing)
  • Re: Zero Carbon Calculator
    ... Adding more CO2 to the atmosphere will not have any "global warming" effect as hyped by the media. ... The transmittance of the atmosphere at the absorption wavelengths decays exponentially with CO2 content, and so the first 100ppb have more effect than the third 100ppb. ... If CO2 warms up the atmosphere by absorbing radiation, and if such absorption has saturated/levelled-off-exponentially, how can increasing the CO2 concentration have any possible further warming effect? ...
    (uk.transport)
  • Re: GreenHouse Gas, H2O?
    ... First, I'm referring to the bands of IR absorption that CO2 absorbs, ... I'm not sure if 99.999% is a correct absorption. ...
    (sci.physics)
  • Re: Zero Carbon Calculator
    ... Adding more CO2 to the atmosphere will not have any "global ... absorption wavelengths decays exponentially with CO2 content, ...
    (uk.transport)