Fig. 1. Number of samples and correlation coefficient of wind speed at different altitudes between wind profiler radar and L-band sounding radar at 00∶00, the red dot fails the α=0.05 significance test. (a) All samples; (b) no precipitation samples; (c) precipitation samples

Fig. 2. Number of samples and correlation coefficient of wind speed at different altitudes between wind profiler radar and L-band sounding radar at 12∶00, the red dot fails the α=0.05 significance test. (a) All samples; (b) no precipitation samples; (c) precipitation samples

Fig. 3. Horizontal wind speed error of wind profiler radar to L-band sounding radar at different altitudes. (a) Average error at 00∶00 ; (b) average error at 12∶00; (c) root mean square error at 00∶00; (d) root mean square error at 12∶00; (e) relative error at 00∶00; (f) relative error at 12∶00

Fig. 4. Effective sample rate of horizontal wind speed of wind profiler radar at different altitudes. (a) 00∶00; (b) 12∶00

Fig. 5. Effective sample rate of horizontal wind direction of wind profiler radar at different altitudes. (a) 00∶00; (b) 12∶00

Fig. 6. Correlation graphs of the $C_n^{\mathrm{2}}$ profile of wind profile radar and the $C_n^{\mathrm{2}}$ profile retrieved by the sounding radar under different atmospheric stability conditions. (a) Extremely unstable atmosphere; (b) moderately unstable atmosphere; (c) weakly unstable atmosphere; (d) neutral atmosphere; (e) weakly stable atmosphere; (f) moderately stable atmosphere