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k(T) all layers

k(T) = A+B*T+C*T^2+D*T^3

NOTE: Not just 2 domains/layers, but All



Cp(T) all layers

Cp(T) = A+B*T+C*T^2+D*T^3

NOTE: Not just 2 domains/layers, but All



Surface/Atmosphere Sensible heat exchange Q

Q = h × (Tsurf - Tatm)

NOTE: Tsurf is the kinetic surface Temperature; Tatm is the air temperature near the surface; Q is an additional heat flux term at the surface; h is a convective heat transfert coefficient.



Temperature-dependent Emissivity ε(T)

ε(T) = A + BxT + CxT^2 + DxT^3

NOTE: Keihm 1984 + Birkebak 1974

An analysis of the impact of ε(T) is performed using a typical TES basalt (File:bandfield epf derived basalt spectrum.txt) and a typical TES dust (File:bandfield epf derived dust spectrum.txt).

TES basalt.png
TES dust.png


Equivalent broadband emissivities as a function of temperature are shown below.

Broadband Emissivity basalt.png
Broadband Emissivity dust.png

For a wide range of surface temperatures (50-500K), the broadband apparent emissivity only changes by small factors (1-2% at most).

Analysis and plot generated using this algorithm: File:KRC Emissivity T.dv

Conclusion: Excellent fits to these behaviors can be obtained with polynomial functions. This is a small overall effect.


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