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Fig. 4

Fig. 4 Refer to the following caption and surrounding text.

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Sky brightness model and schematic of the radiative transfer process. (a) Sky brightness model Isky(θ, ϕ) generated by DISORT (Sol 32, R band). (b) Schematic of the radiative transfer at the Martian surface. The radiance received by NaTeCam consists of both direct solar light and diffuse skylight.

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