• Journal of Atmospheric and Environmental Optics
  • Vol. 18, Issue 6, 516 (2023)
ZHU Song, DENG Xueliang*, SHEN Weiwei, WU Yue, and JIN Xiaolong
Author Affiliations
  • Hefei Meteorological Bureau, Hefei 230041, China
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    DOI: 10.3969/j.issn.1673-6141.2023.06.002 Cite this Article
    Song ZHU, Xueliang DENG, Weiwei SHEN, Yue WU, Xiaolong JIN. Preliminary research on evaluation of wind profile radar data in Hefei area[J]. Journal of Atmospheric and Environmental Optics, 2023, 18(6): 516 Copy Citation Text show less
    Distribution of balloon radiosondes and wind profile radar stations
    Fig. 1. Distribution of balloon radiosondes and wind profile radar stations
    Flowchart for radar data evaluation
    Fig. 2. Flowchart for radar data evaluation
    Comparison of vertical profile distribution of Fuyang and Anqing balloon soundings and ERA5 data. (a), (b) Correlation coefficient; (c), (d) deviation (SBia); (e), (f) root mean square error (ERMS)
    Fig. 3. Comparison of vertical profile distribution of Fuyang and Anqing balloon soundings and ERA5 data. (a), (b) Correlation coefficient; (c), (d) deviation (SBia); (e), (f) root mean square error (ERMS)
    Distribution of wind profile radar horizontal wind data acquisition rate with height. (a), (b) Hefei station; (c), (d) Chaohu station
    Fig. 4. Distribution of wind profile radar horizontal wind data acquisition rate with height. (a), (b) Hefei station; (c), (d) Chaohu station
    Distribution of effective detection altitude by month
    Fig. 5. Distribution of effective detection altitude by month
    Distribution of correlation coefficients between wind profile radar measurements and reanalysis data with pressure level in different seasons. (a), (b) Hefei station; (c), (d) Chaohu station
    Fig. 6. Distribution of correlation coefficients between wind profile radar measurements and reanalysis data with pressure level in different seasons. (a), (b) Hefei station; (c), (d) Chaohu station
    Distribution of SBia between wind profile radar measurements and reanalysis data with pressure level in different seasons.(a), (b) Hefei station; (c), (d) Chaohu station
    Fig. 7. Distribution of SBia between wind profile radar measurements and reanalysis data with pressure level in different seasons.(a), (b) Hefei station; (c), (d) Chaohu station
    Distribution of ERMS between wind profile radar measurements and reanalysis data with pressure level in different seasons.(a), (b) Hefei station; (c), (d) Chaohu station
    Fig. 8. Distribution of ERMS between wind profile radar measurements and reanalysis data with pressure level in different seasons.(a), (b) Hefei station; (c), (d) Chaohu station
    Main indicatorsParameters
    Frequency/MHz1280 ± 0.5
    Detection distance (MAX)/km≥ 6
    Detection distance (MIN)/m≤ 150
    Horizontal wind direction/(°)0~360
    Horizontal wind speed/(m·s-1)0~60
    Vertical speed/(m·s-1)-20~+20
    Height resolution/m

    60/120 (Low mode)

    120/240 (Pulse compression)

    Temporal resolution/min6
    Wind speed resolution/(m·s-1)0.2
    Wind direction resolution/(°)0.5
    Sensitivity/dBm-150
    Table 1. Wind profile radar performance index
    Main indicatorsParameters
    Data typeGridded
    Projection modeRegular latitude-longitude grid
    Horizontal coverageGlobal
    Horizontal resolution/(°)0.25 × 0.25
    Vertical coverage/hPa1000~1
    Vertical resolution37 pressure levels
    Temporal coverage1959 to present
    Temporal resolutionHourly
    Table 2. Description of ERA5 reanalysis data
    ComponentFuyangAnqing
    RSBia/(m·s-1)ERMS/(m·s-1)RSBia/(m·s-1)ERMS/(m·s-1)

    u

    v

    0.960.021.570.96-0.051.66
    0.96-0.111.570.95-0.051.68
    Table 3. Comparison of statistical values between Fuyang and Anqing sounding stations and ERA5 reanalysis data
    Song ZHU, Xueliang DENG, Weiwei SHEN, Yue WU, Xiaolong JIN. Preliminary research on evaluation of wind profile radar data in Hefei area[J]. Journal of Atmospheric and Environmental Optics, 2023, 18(6): 516
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