Re: OT: Wheres my Global Warming!

In article <h51i0k$21h$1@xxxxxxxxxxxxxxxxxxxxx>, Ian Bell wrote:
Bill Sloman wrote:

<SNIP to this point>

This seems to be unlikely - you haven't come up with anything except
vapid generalisations so far.
Tell me something about "effective radiating altitudes" or "pressure
broadening" ...

Only if you fisrt tell me something about micro droplets and saturated
absorbance bands.

I find "saturated absorbance bands" to remind me of arguments that
thermal IR absorption and reradiation is mostly in wavelengths where the
total depth of the atmosphere already has absorption close to 100%.

Meanwhile, the stronger absorption bands do not have square edges, but
have edge regions having room to gain. Further meanwhile, there are
wavelength ranges where atmospheric absorption is low but nonzero, and has
room to move up.

And in addition, there is consideration for water vapor - both being the
main greenhouse gas and being a significant positive feedback mechanism, by
having its atmospheric concentration varying highly directly with global
temperature. Water vapor has significant thermal IR absorption and
reradiation over a significant range of wavelengths where total
atmospheric absorption by the entire depth of the atmosphere is
significantly below 100% and by water vapor alone is significantly above
zero.

It gets even worse if Sloman's "pressure broadening" has any actual
significant effect. (And I have seen this occur, even in terms of
interaction between different substances - as part of studying the physics
of high pressure sodium vapor lamps. Some of that is noted by more than
one person known as a major poster in the newsgroup sci.engr.lighting.)

Now, what do you propose to be the role played by microdroplets, both
in terms of total effect and feedback effect?

- Don Klipstein (don@xxxxxxxxx)
.

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