Data Quality Reports for Session: 130981 User: dmfoper Completed: 10/22/2010


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070706.1FKB/WACR/M1 - Decreased Pulse Repetition FrequencyfkbwacrM1.b1
D070706.2FKB/WACR/M1 - No cross polar data collectedfkbwacrM1.b1
D070706.3FKB/WACR/M1 - Radar parameters changing frequentlyfkbwacrM1.b1
D100729.3FKB/WACR/M1 - Reflectivity and Height OffsetsfkbwacrM1.b1, fkbwacrspeccmaskxpolM1.a0, fkbwacrspeccmaskcopolM1.a0


DQRID : D070706.1
Start DateStart TimeEnd DateEnd Time
06/29/2007093606/29/20070950
Subject:
FKB/WACR/M1 - Decreased Pulse Repetition Frequency
DataStreams:fkbwacrM1.b1
Description:
Following a disk swap, an old configuration file was used, which set the Pulse Repetition 
Frequency to 8333 Hz instead of the intended 10000 Hz.  This caused Nyquist velocity to 
be reduced to 6.57 m/s (from 7.885 m/s) and the maximum height of data collection to 
increase to 18215 m MSL (from 15215 m MSL).
Measurements:fkbwacrM1.b1:
  • MMCR Spectral Width(SpectralWidth)
  • heights
  • SignalToNoiseRatio
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Cloud, reflectivity, at altitude(Reflectivity)


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DQRID : D070706.2
Start DateStart TimeEnd DateEnd Time
06/29/2007095007/03/20071554
Subject:
FKB/WACR/M1 - No cross polar data collected
DataStreams:fkbwacrM1.b1
Description:
Following a disk swap, the wrong configuration file was used.  As a result only co-polar 
data was collected.  No cross polar data is available for this period. Also, the maximum 
height of data collection was 7672 m MSL.
Measurements:fkbwacrM1.b1:
  • MMCR Spectral Width(SpectralWidth)
  • Noise
  • heights
  • SignalToNoiseRatio
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Cloud, reflectivity, at altitude(Reflectivity)
  • Polarization


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DQRID : D070706.3
Start DateStart TimeEnd DateEnd Time
07/03/2007155407/03/20071809
Subject:
FKB/WACR/M1 - Radar parameters changing frequently
DataStreams:fkbwacrM1.b1
Description:
The number of data heights and polarization status changed several times during this brief 
period. 

Look at each data file during this period to determine the number of heights of data 
collection and whether dual polarization data or only co-polar data was collected. (pol_mode = 
0 for co-polar only, pol_mode = 2 for alternating co-polar/cross-polar data collection).
Measurements:fkbwacrM1.b1:
  • MMCR Spectral Width(SpectralWidth)
  • Noise
  • heights
  • SignalToNoiseRatio
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Cloud, reflectivity, at altitude(Reflectivity)
  • Polarization


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DQRID : D100729.3
Start DateStart TimeEnd DateEnd Time
03/29/2007000001/02/20082359
Subject:
FKB/WACR/M1 - Reflectivity and Height Offsets
DataStreams:fkbwacrM1.b1, fkbwacrspeccmaskxpolM1.a0, fkbwacrspeccmaskcopolM1.a0
Description:
The instrument vendor has informed us of a range (height) offset of 13 m and has provided 
an updated reflectivity calibration.  All values reported for 'Reflectivity' are 
approximately 1.5 dB too low.   In addition, the Reflectivity in the first and fourth range gates 
(starting from the surface) need to be further corrected by an additional 2.7 and -0.9 
dB, respectively. The 'height' field values are 13.33 m too low.  The data will be 
reprocessed to correct these problems.
Measurements:fkbwacrM1.b1:
  • heights
  • Cloud, reflectivity, at altitude(Reflectivity)

fkbwacrspeccmaskxpolM1.a0:
  • Cloud, reflectivity, at altitude(Reflectivity)
  • heights

fkbwacrspeccmaskcopolM1.a0:
  • heights
  • Cloud, reflectivity, at altitude(Reflectivity)


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