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# Questions tagged [radiative-transfer]

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21 votes
6 answers
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### How does fire heat air?

I understand that fire heats its surroundings via conduction, convection and radiation. I've read that conduction is nearly irrelevant to this process as air is a poor heat conductor. In descriptions ...
• 313
6 votes
3 answers
640 views

### Shouldn't $CO_2$ forcing depend on the surface temperature?

When I read about radiative forcing due to CO2 it says: "Radiative forcing is a measure of the influence a factor has in altering the balance of incoming and outgoing energy in the Earth-...
• 870
2 votes
3 answers
137 views

### Is thermal conduction really radiation?

I have no doubt thermal conduction is a useful model for heat transfer, wherein kinetic energy is transferred between particles when they collide. However, according to explanations that I believe are ...
• 1,216
2 votes
1 answer
144 views

1 vote
1 answer
63 views

0 votes
1 answer
49 views

### Net flux in radiative transfer

I encountered the need of computing the net flux of a specific intensity given by $$I_{ex}(\theta,\phi) = I_0 \delta(\theta) \delta(\phi)$$ traversing an horizontal plane whose normal coincides with ...
0 votes
1 answer
154 views

### Difference between stationary and non-stationary radiative transfer?

I am currently studying radiative transfer. In researching this subject, I found that there is stationary radiative transfer and non-stationary radiative transfer. However, it is not clear what the ...
• 889
0 votes
0 answers
33 views

### How many scattering events happen in the atmosphere over 1 km?

In Vector Monte Carlo Atmospheric Radiative Transfer Simulations, they take a Stokes vector, let's say [1,1,0,0] and multiply it with a matrix, with elements close to 1. But if there are much ...
-2 votes
2 answers
266 views

### What is the solid angle $d\Omega$ in radiative transfer?

The Wikipedia article for radiative transfer gives the following definition: In terms of the spectral radiance, $I_{\nu }$, the energy flowing across an area element of area $da$, located at \$\mathbf{...
• 889