Fig. 1. Ice crystals of different shapes

Fig. 2. Comparison of the water content calculated by refined ice cloud model with real values^［6］

Fig. 3. The measured data of the latitudinal cirrus particle size distribution^［6］

Fig. 4. Variation of backscattering cross section of ice crystals with different shapes of the maximum dimension D

Fig. 5. Z_m-I relationship of (a) aggregate, (b) droxtal, (c) hexagonal column, (d) plate, (e) bullet rosette

Fig. 6. Zm-I relationship of mixed ice crystal grains

Fig. 7. Comparison of the relationships between Zm and I derived in this study and other algorithms for ice clouds from previous studies at 94 GHz

Fig. 8. Comparison of simulated data at 220 GH and measured data at 215 GHz