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Absorption moléculaire

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L/,-(*(30)#&03+%*10))*/b60##/#)6F/()(/*C0)210D2)<br />

Fenêtre!<br />

<strong>Absorption</strong>!<br />

+!<br />

émission!<br />

P! T!<br />

émission!<br />

100*Wm -2 sr -1 µm -1<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

Ozone!<br />

CO 2 !<br />

Cloud Top = 10km<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

Normalized Spectral Response of the IR channel<br />

0.0<br />

Cloud Top = 17km<br />

2 4 8 16 32 64 128<br />

Wavelength (µm)<br />

0.0<br />

Les bandes d'absorption de<br />

l'Ozone et du CO2 deviennent des<br />

sources de rayonnement car la<br />

température de la stratosphère est<br />

plus grande que la température au<br />

sommet du nuage!<br />

17/10/11! <strong>Absorption</strong> moléculaire - ! 36!

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