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re: denmark cuts co2 11% since 1988
23 apr 2001
m. simon wrote:
>>>tim o'flaherty wrote:
>>>>>>...co2 is transparent to visible light and opaque to ir.
>>>so how much 50 f ir is absorbed by 10,000' of 330 ppm co2?
>if we assume sea level and constant partial sea level pressure up to
>10k feet you will probably get a fair estimate of the whole atmosphere.
so, what's the answer?
>then try the same execise for saturated water vapor at 50 f.
and what's the answer to that question?
>>"50 f ir" ???...
>not really boltzman's law is good enough to give the peak.
wein's displacement law says 50 f (283 k) black body radiation peaks
at l = 10.2 microns. plank's law says the radiation at wavelength l is
c1/(l^5(exp(c2/l-1), where c1 = 3.74x10^-16m^2/w and c2 = 0.013879 mk.
so, what percentage of this radiation is absorbed?
nick
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