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Penetration of solar radiation
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TOPIC: Penetration of solar radiation

Penetration of solar radiation 2 years 2 months ago #42550

  • Sokolov
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Dear all,

Can someone help me to figure out why the solar radiation on the level Z is also multiplied by the extinction coefficient Kd? Radiation RAY3%R(I) is already reduced by the exp(-Kd*z)...

TEXP%ADR(IND_T)%P%R(J) = TEXP%ADR(IND_T)%P%R(J) +
& KD*EXP(KD*(Z(J)-Z(I+(NPLAN-1)*NPOIN2)))*RAY3%R(I)/LAMB

file: sources/waqtel/calcs3d_thermicv.f, lines 122-123, telemac version v8p4r0

Thank you,

Alexander
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Penetration of solar radiation 2 years 2 months ago #42551

  • jurjendejong
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Hi!

I assume it has to do with the derivate dQ(z, RS)/dz (see eq.6.10 of Waqtel theory guide). With Q = RS* exp(KD*z - Kd-zs) this gives dQ/dz = RS* Kd*exp(KD*z - Kd-zs)
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Penetration of solar radiation 2 years 2 months ago #42553

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