Fig. 1. Optical properties of Martian dust particles varying with radius at different wavelengths. (a) Asymmetry factor; (b) scattering coefficient; (c) absorption coefficient

Fig. 2. Degree of depolarization of polarized light varying with transmission distance in different-particle-size dust at different wind speeds. (a) r_eff=2。34 μm, v_eff=0。86 μm; (b) r_eff=1。85 μm, v_eff=0。51 μm

Fig. 3. Polarization parameter of polarized light varying with transmission distance at different particle number concentrations and at different heights. (a) Height is 18 km, and particle number concentration is 1。8×10⁹ m^-3; (b) height is 18 km, and particle number concentration is 1。1×10⁹ m^-3; (c) height is 22 km, and particle number concentration is 4。0×10⁸ m^-3; (d) height is 22 km, and particle number concentration is 2。2×10⁸

Fig. 4. Results under different polarized light. (a) Horizontal component of polarized light varying with transmission distance under light incidence with horizontal polarization;(b) vertical component of polarized light varying with transmission distance under light incidence with horizontal polarization; (c) horizontal component of polarized light varying with transmission distance under light incidence with vertical polarization; (d) vertical component of polarized light varying with transmission dis