Parameters Available from S-Pol
S-Pol WISP04, Marshall Field Site, Colorado
Feb/Mar 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
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)
DW dBm S-band cross-polar received power (V-tx, H-rec or HV)
DX dBm S-band cross-polar received power (H-tx, V-rec or VH)
DY dBZ 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)
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 none S-band normalized coherent power (HH)
NCP_HH_K none Ka-band normalized coherent power (HH)
PHIDP deg S-band differential phase
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)
RHOHV none S-band Correlation coefficient between HH, VV
RHO_VH_K none Ka-band Correlation coefficient between HH, VV
SW m/s S-band co-polar spectrum width (computed from both SW_HH and SW_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)
VR m/s S-band co-polar radial velocity (computed from both V_HH and V_VV
using the CSU algorithms)
V_HH_K m/s Ka-band co-polar radial velocity (HH)
ZDR dB S-band differential reflectivity (DBZ_HH - DBZ_VV)
Z_HH_K dB Ka-band co-polar reflectivity (HH)
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)
For a description of the DORADE format, see:
http://www.atd.ucar.edu/atd_technical_info.html
--- Bob Rilling ---
/ NCAR Atmospheric Technology Division
Created: Tue Mar 9 15:22:55 MST 2004
Last modified: