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Martian Surface Emissivity. Emissivity: its definition and importanceHow Mars emissivity measurements are takenDirectional emissivityRadiative transfer model developmentTheory <---> lab comparisonsImplications for Martian regolith particles. Emissivity: Defined. e = (power radiated by material) / (power radiated by BB @ same temperature)L = sT4 for blackbody; L = esT4 for everythinge = 1.0 => perfect radiator/absorber.
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