Parameters Available from S-Pol

S-Pol NAME, LaCruz, Mexico
Jul/Aug 2004

Within the reprocessed data set:

The re-configured S-Pol system is sometimes referred to as S-PolKa, an
indication of the Ka-band system added to the radar.

S-band is 2809 MHz, 10.68 cm
Ka-ban is approx 8mm

S-band parameters available:

CDBZ      dBZ    S-band coherent reflectivity
DBZ       dBZ    S-band reflectivity
DL        dBm    S-band Vertical received power (co-polar: V-tx, V-rec)
DM        dBm    S-band Horizontal received power (co-polar: H-tx, H-rec)
DX        dBm    S-band cross-polar received power (H-tx, V-rec or VH)
DY        dBm    S-band co-polar reflectivity (V-tx, V-rec or VV)
LDR       dB     S-band depolarization ratio (H-tx, V-rec, or VH)
LVDR      dB     S-band depolarization ratio (V-tx, H-rec, or HV)
NCP       none   S-band normalized coherent power (HH)
PHIDP     deg    S-band differential phase
RHOHV     none   S-band Correlation coefficient between HH, VV
SW        m/s    S-band co-polar spectrum width (computed from both SW_HH and SW_VV)
VR        m/s    S-band co-polar radial velocity (computed from both V_HH and V_VV
                   using the CSU algorithms)
ZDR       dB     S-band differential reflectivity (DBZ_HH - DBZ_VV)
NIQ       dB     Average magnitude of backscatter pwr, HH
AIQ       deg    Average phase of backscattered power (HH)
                   AIQ is used in the Fabry refractive index
                   work for the determination of virtual temp
CH        none   Magnitude of cross correlation, HH and VH
AH        deg    Angle of the cross correlation, HH and VH
CV        none   Magnitude of cross correlation, VV and HV
AV        deg    Angle of the cross correlation, VV and HV

KDP      deg/km  [Not Available] Specific diff propagation phase (HH, VV)
DW        dBm    [Not Available] S-band cross-polar received power (V-tx, H-rec or VH)


Ka-band parameters available (Ka did not operate for most of NAME):

LDR_VH_K  dB     Ka-band depolarization ratio (H-tx, V-rec, or VH)
                   (special note: H-polarization for Ka is often tipped
                   up to 22 degrees off of horizontal)
NCP_HH_K  none   Ka-band normalized coherent power (HH)
P_HH_K    dBm    Ka-band co-polar received power (H-tx, H-rec or HH)
P_VH_K    dBm    Ka-band cross-polar received power (H-tx, V-rec or VH)
RHO_VH_K  none   Ka-band Correlation coefficient between HH, VV
SW_HH_K   m/s    Ka-band co-polar spectrum width (HH)
TH_VH_K   deg    Ka-band differential phase (PHIDP of Ka) (not yet evaluated for utility)
V_HH_K    m/s    Ka-band co-polar radial velocity (HH)
Z_HH_K    dB     Ka-band co-polar reflectivity (HH)



    For a description of the DORADE format, see:
      http://www.atd.ucar.edu/atd_technical_info.html