DQRID : D160106.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/01/2010000007/20/20160000Suspect
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Subject:
ENA/MAO/OLI/PGH/PVC/SGP/TWP/DLPROF/C1/C3/M1 - Reprocess: Suspect error estimates
DataStreams:enadlprofwind4newsC1.c1
Description:
The current dlprofwind4news VAP generates time- and height-resolved estimates of wind 
speed, wind direction, and corresponding uncertainties from Doppler lidar PPI scans. A recent 
comparison with a heavily instrumented tall tower (BAO) has shown that the error 
estimates are biased low and exhibit poor correlation with the observed lidar-tower differences. 
We note that the measurements themselves (i.e. wind speed and direction) are minimally 
affected by this issue.
Suggestions: 
Users should not use the reported error estimates to quantify uncertainty in the wind 

speed and wind direction measurements. Users should also not use the reported error 
estimates as a means of quality control. As a work around, quality control should be based 
on the fit residual (i.e. the variable called "residual").
Measurements:enadlprofwind4newsC1.c1:
  • wind_direction_error
  • u_error
  • v_error
  • w_error
  • wind_speed_error
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