L2 Quality Flag Monitoring

 IPF Baseline:
Phase:

Cryosat L2 data includes a quality flag word (field 43) for each 20Hz measurement record. The bit values of this flag indicate an assessment of the measurement quality by the ground segment processing chains.

This section shows the statistics and geographical maps of this flag for each mode and surface type during each 30-day data take. Click on the flag bit name to view a geographical map of the flag values.

Click on the Height or Backscatter Error percentage values to view a plot of the per-cycle trend.

 30-day Data Take:

170 (4/9/24 -> 3/10/24)

Percentage Flags Set for Data Take 170
Quality Flag Bit LRM - Ice LRM - Land LRM - Ocean SARIN - Ice SARIN - Land SAR - Ocean
RECORD_DEGRADED 0 % 0 % 0 % 0 % 0 % 0 %
ORBIT_ERROR 0 % 0 % 0 % 0 % 0 % 0 %
ORBIT_DISCONTINUITY 0 % 0 % 0 % 0 % 0 % 0 %
HEIGHT_ERROR 16.16 % 79.82 % 0.42 % 7.06 % 15.26 % 1.07 %
SSHA_INTERP_ERROR 0 % 0 % 0 % 100 % 100 % 4.21 %
CALIBRATION_WARNING 0 % 0 % 0 % 0 % 0 % 0 %
BACKSCATTER_ERROR 15.94 % 79.21 % 0.42 % 7.01 % 15.09 % 1.07 %
FREEBOARD_ERROR 0 % 0 % 0 % 100 % 100 % 99.14 %
PEAKINESS_ERROR 0 % 0 % 0 % 0 % 0 % 0 %
SAR_DISCRIM_OCEAN 0 % 0 % 0 % 0 % 0 % 40.46 %
SAR_DISCRIM_LEAD 0 % 0 % 0 % 0 % 0 % 20.18 %
SAR_DISCRIM_ICE 0 % 0 % 0 % 0 % 0 % 11.7 %
SAR_DISCRIM_UNKNOWN 0 % 0 % 0 % 100 % 100 % 27.66 %
SARIN_XTRACK_ERROR 0 % 0 % 0 % 29.36 % 98.74 % 0 %
SARIN_RX1_ERROR 0 % 0 % 0 % 0 % 0 % 0 %
SARIN_RX2_ERROR 0 % 0 % 0 % 0 % 0 % 0 %
SIRAL_IDENTIFIER 0 % 0 % 0 % 0 % 0 % 0 %
SURFACE_MOD_PDS 0.15 % 100 % 100 % 9.86 % 82.33 % 0 %
MISPOINTING_ERROR_PDS 0 % 0 % 0 % 0 % 0 % 0 %
DELTA_TIME_ERROR_PDS 0 % 0 % 0 % 0 % 0 % 0 %