link wishes
| Line 33: | Line 33: | ||
An analysis of the impact of ε(T) is performed using a typical TES basalt and a typical TES dust. | An analysis of the impact of ε(T) is performed using a typical TES basalt and a typical TES dust. | ||
| + | |||
| + | [[Image:TES_baslat.pdf|left|500px]] | ||
Equivalent broadband emissivities as a function of temperature are shown below. For a wide range of surface temperatures (50-500K), the broadband apparent emissivity only changes by small factors (1-2% at most). | Equivalent broadband emissivities as a function of temperature are shown below. For a wide range of surface temperatures (50-500K), the broadband apparent emissivity only changes by small factors (1-2% at most). | ||
Revision as of 14:32, 11 January 2019
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 and a typical TES dust.
Equivalent broadband emissivities as a function of temperature are shown below. For a wide range of surface temperatures (50-500K), the broadband apparent emissivity only changes by small factors (1-2% at most).
Excellent fits to these behaviors can be obtained with polynomial functions.
