Fig. 1. Simulation diagram of sky polarization mode under different ice crystal particles

Fig. 2. The degree of polarization of ice cloud with the observation altitude angle under different ice crystal particle models

Fig. 3. The angle of polarization of ice cloud with the observation altitude angle under different ice crystal particle models

Fig. 4. Variations degree of polarization of ice clouds at different effective radius and ice water contents

Fig. 5. Variations degree of polarization of ice cloud with thin and medium optical thickness at different ice water contents

Fig. 6. Variations degree of polarization of ice cloud with thick optical thickness at different ice water contents

Fig. 7. Framework of image measuring system

Fig. 8. Actual atmospheric polarization test diagram of the ice cloud

Fig. 9. Actual atmospheric polarization test diagram of the ice cloud