<p>There is no simple relationship since it all depends on the frequency (IR spectral lines for most species of molecules are a mess). The most direct and precise way of calculation is through line-by-line calculation from a large spectrum database. The atmospheric column will be very different based on angle off normal, weather, and even time of day (water content has diurnal variability, mostly).</p>

<p>Surface temperature and surface properties also influence the distribution of emitted IR.</p>

<p>See also: <a href="https://en.wikipedia.org/wiki/Atmospheric_radiative_transfer_codes" rel="noreferrer">Atmospheric radiative transfer codes</a></p>

CC BY-SA 3.0
2015-09-07T10:42:44.503Z
2015-09-07T10:48:59.383Z
2015-09-07T10:48:59.383Z
Deer Hunter
<p>I know that some gases like CO<sub>2</sub>, N<sub>2</sub>O and CH<sub>4</sub> absorb infra red radiation.</p>

<p>What is the proportion or percentage of radiation absorbed by CO<sub>2</sub> among all the gases?</p>

<geochemistry><atmospheric-radiation><atmospheric-chemistry><gas><greenhouse-gases>
What is the ratio of infra-red light absorbed by green house gases?
swayamraina
# What is the ratio of infra-red light absorbed by green house gases?

(Asked by: username_0 on 2015-09-07)

I know that some gases like CO2, N2O and CH4 absorb infra red radiation.

What is the proportion or percentage of radiation absorbed by CO2 among all the gases?

**Tags:** geochemistry, atmospheric-radiation, atmospheric-chemistry, gas, greenhouse-gases


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## 1 answers

### Answer by username_1 on 2015-09-07. Score: 5

There is no simple relationship since it all depends on the frequency (IR spectral lines for most species of molecules are a mess). The most direct and precise way of calculation is through line-by-line calculation from a large spectrum database. The atmospheric column will be very different based on angle off normal, weather, and even time of day (water content has diurnal variability, mostly).

Surface temperature and surface properties also influence the distribution of emitted IR.

See also: [Atmospheric radiative transfer codes](https://en.wikipedia.org/wiki/Atmospheric_radiative_transfer_codes)


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