Class 21 BUFR/CREX Radar data – BUFR CREX TABLE DATA DATA REFERENCE ELEMENT NAME UNIT SCALE REFERENCE WIDTH UNIT SCALE WIDTH F X Y VALUE (Bits) (Characters) 0 21 001 Horizontal reflectivity dB 0 7 dB 0 3 –64 0 21 002 Vertical reflectivity dB 0 7 dB 0 3 –64 0 21 003 Differential reflectivity dB 1 7 dB 1 3 –5 0 21 004 Differential reflectivity dB 2 11 dB 2 4 –800 0 21 005 Linear depolarization ratio dB 0 6 dB 0 2 –65 0 21 006 Circular depolarization ratio dB 0 6 dB 0 2 –65 0 21 011 Doppler mean velocity in x-direction 0 8 0 3 m s–1 m s–1 –128 0 21 012 Doppler mean velocity in y-direction 0 8 0 3 m s–1 m s–1 –128 0 21 013 Doppler mean velocity in z-direction 0 8 0 3 m s–1 m s–1 –128 0 21 014 Doppler mean velocity (radial) 1 13 1 4 m s–1 m s–1 –4096 0 21 017 Doppler velocity spectral width 1 0 8 1 3 m s–1 m s–1 0 21 018 Extended NYQUIST velocity 1 0 10 1 4 m s–1 m s–1 0 21 019 High NYQUIST velocity 1 0 10 1 3 m s–1 m s–1 0 21 021 Echo tops m 0 4 m 2 –3 –3 0 21 022 Range bin offset m 1 0 14 m 1 5 0 21 023 Range bin size m 0 0 14 m 0 5 0 21 024 Azimuth offset ° 1 0 12 ° 1 4 0 21 025 Azimuthal resolution ° 1 0 8 ° 1 3 0 21 028 Differential phase ° 1 0 12 ° 1 4 0 21 029 Cross-polarization correlation Numeric 2 8 Numeric 2 3 –100 coefficient 0 21 030 Signal to noise ratio dB 0 8 dB 0 3 –32 0 21 031 Vertically integrated liquid-water content 0 0 7 0 3 kg m–2 kg m–2 0 21 036 Radar rainfall intensity 7 0 12 7 4 m s–1 m s–1 (continued)
Class 21 – BUFR/CREX Radar data BUFR CREX TABLE DATA DATA REFERENCE ELEMENT NAME UNIT SCALE REFERENCE WIDTH UNIT SCALE WIDTH F X Y VALUE (Bits) (Characters) 0 21 001 Horizontal reflectivity dB 0 –64 7 dB 0 3 0 21 002 Vertical reflectivity dB 0 –64 7 dB 0 3 0 21 003 Differential reflectivity dB 1 –5 7 dB 1 3 0 21 004 Differential reflectivity dB 2 –800 11 dB 2 4 0 21 005 Linear depolarization ratio dB 0 –65 6 dB 0 2 0 21 006 Circular depolarization ratio dB 0 –65 6 dB 0 2 0 21 011 Doppler mean velocity in x-direction m s–1 0 –128 8 m s–1 0 3 0 21 012 Doppler mean velocity in y-direction m s–1 0 –128 8 m s–1 0 3 0 21 013 Doppler mean velocity in z-direction m s–1 0 –128 8 m s–1 0 3 0 21 014 Doppler mean velocity (radial) m s–1 1 –4096 13 m s–1 1 4 0 21 017 Doppler velocity spectral width m s–1 1 0 8 m s–1 1 3 0 21 018 Extended NYQUIST velocity m s–1 1 0 10 m s–1 1 4 0 21 019 High NYQUIST velocity m s–1 1 0 10 m s–1 1 3 0 21 021 Echo tops m –3 0 4 m –3 2 0 21 022 Range bin offset m 1 0 14 m 1 5 0 21 023 Range bin size m 0 0 14 m 0 5 0 21 024 Azimuth offset ° 1 0 12 ° 1 4 0 21 025 Azimuthal resolution ° 1 0 8 ° 1 3 0 21 028 Differential phase ° 1 0 12 ° 1 4 0 21 029 Cross-polarization correlation coefficient Numeric 2 –100 8 Numeric 2 3 0 21 030 Signal to noise ratio dB 0 –32 8 dB 0 3 0 21 031 Vertically integrated liquid-water content kg m–2 0 0 7 kg m–2 0 3 0 21 036 Radar rainfall intensity m s–1 7 0 12 m s–1 7 4 (continued)
WMO306_vI2_BUFRCREX_TableB_en.docx