Data Quality Reports for Session: 183056 User: wlj Completed: 01/27/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D120828.8TWP/KAZR/C1/C3 - General Quality StatementtwpkazrspeccmaskgecopolC1.a0Suspect
D131120.5TWP/KAZR/C1/C3 - Reprocessing Notice (RID 1118)twpkazrauxC1.a0, twpkazrhiC1.a1, twpkazrgeC1.a1, twpkazrspeccmaskhicopolC1.a0,
twpkazrspeccmaskgecopolC1.a0		Does not affect quality
D140902.2TWP/KAZR/C1 - Data Not AvailabletwpkazrspeccmaskgecopolC1.a0, twpkazrgeC1.a1Missing
D140902.3TWP/KAZR/C1 - Data Not AvailabletwpkazrhiC1.a1, twpkazrspeccmaskhicopolC1.a0Missing
D150106.3TWP/KAZR/C1 - Reprocess: Incorrect TimestwpkazrhiC1.a1Incorrect


DQRID : D120828.8
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/12/2011000012/31/20142359Suspect
Subject:
TWP/KAZR/C1/C3 - General Quality Statement
DataStreams:twpkazrspeccmaskgecopolC1.a0
Description:
The KAZR continues to undergo evaluation by the radar instrument mentors, ProSensing, VAP 
developers, DQ Office, site scientists, users, etc.  As more in-depth analysis and 
calibration studies take place, we anticipate that new insights will be gained to increase the 
quality of the data and decrease the uncertainty of the measurements.  This is a 
continuous improvement process and issues will be addressed as they are discovered.

Calibration is very important.  With the addition of Ka-SACRs adjacent to the KAZRs, this 
will give us an unprecedented method of doing calibration comparisons.  The Ka-SACR will 
be able to use an external calibration target to include those components that are not 
calibrated by internal circuits.  We will not be able to point the KAZR at a calibration 
target but by comparing radar returns to the Ka-SACR, we will be able to achieve a higher 
degree of calibration than we ever could with the KAZR operating standalone as its 
predecessor, the MMCR, did.

As issues are discovered, attempts will be made to correct data that is currently in the 
Archive.  However, retrospective correction of errors due calibration, signal processing, 
component degradation and software bugs may not be possible for many of the data files.

This open-ended DQR is an advisory that some aspects of the data quality are not yet 
known.  It is also a request for users that find issues or questions with the data to contact 
the ARM Radar Engineering & Operations Group Manager, Kevin Widener, at 
kevin.widener@pnnl.gov as these issues occur so that they can be investigated and corrected if necessary.
Measurements:twpkazrspeccmaskgecopolC1.a0:
  • Spectrum of raw counts from spectrometer(spectra)
  • Reflectivity(reflectivity)
  • Spectral Width(spectral_width)
  • locator_mask
  • Mean Doppler Velocity(mean_doppler_velocity)
  • velocity_bins
  • signal_to_noise_ratio
  • range

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DQRID : D131120.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/27/2011000005/03/20142359Does not affect quality
03/12/2011000003/16/20142359Does not affect quality
Subject:
TWP/KAZR/C1/C3 - Reprocessing Notice (RID 1118)
DataStreams:twpkazrauxC1.a0, twpkazrhiC1.a1, twpkazrgeC1.a1, twpkazrspeccmaskhicopolC1.a0,
twpkazrspeccmaskgecopolC1.a0
Description:
See below for details of reprocessing that was completed on 20150626.  Original 
DQR category: 4 (Red, Incorrect).

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The wrong calibrations were used due to a problem with the software. Mentor discovered the 
reflectivity between long and short pulse did not agree with each other after analyzing 
data. Data will be reprocessed.
Measurements:twpkazrgeC1.a1:
  • Reflectivity, cross-polarization(reflectivity_xpol)
  • Reflectivity, co-polarization(reflectivity_copol)
twpkazrhiC1.a1:
  • Reflectivity, cross-polarization(reflectivity_xpol)
  • Reflectivity, co-polarization(reflectivity_copol)
twpkazrspeccmaskgecopolC1.a0:
  • Reflectivity(reflectivity)
twpkazrspeccmaskhicopolC1.a0:
  • Reflectivity(reflectivity)
twpkazrauxC1.a0:
  • cal_constant_ch2_copol
  • cal_constant_ch1_xpol
  • cal_constant_ch2_xpol
  • cal_constant_ch1_copol

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DQRID : D140902.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/20/2012234608/23/20122340Missing
05/02/2012121905/03/20121416Missing
12/15/2013020001/31/20141612Missing
09/27/2013202310/01/20131636Missing
08/18/2013104708/20/20131423Missing
12/12/2012020901/19/20130019Missing
05/27/2012172806/08/20120148Missing
01/19/2013025507/12/20132323Missing
09/10/2011091809/12/20111602Missing
12/10/2013145912/12/20131759Missing
08/27/2012195911/19/20120703Missing
Subject:
TWP/KAZR/C1 - Data Not Available
DataStreams:twpkazrspeccmaskgecopolC1.a0, twpkazrgeC1.a1
Description:
DQR documents periods of data missing for greater than 24 hours.
Measurements:twpkazrgeC1.a1:
  • hot_noise_xpol
  • time
  • cold_noise_copol
  • Spectral width, cross-polar(spectral_width_xpol)
  • Reflectivity, co-polarization(reflectivity_copol)
  • signal_to_noise_ratio_copol
  • signal_to_noise_ratio_xpol
  • Mean doppler velocity, cross-polar, dealiased(mean_doppler_velocity_xpol)
  • cal_constant_xpol
  • cal_constant_copol
  • North latitude(lat)
  • Altitude above mean sea level(alt)
  • cold_noise_xpol
  • rx_noise
  • East longitude(lon)
  • range
  • sky_noise_xpol
  • base_time
  • Spectral width, co-polarization(spectral_width_copol)
  • time_offset
  • hot_noise_copol
  • Reflectivity, cross-polarization(reflectivity_xpol)
  • sky_noise_copol
  • Mean doppler velocity, copolar(mean_doppler_velocity_copol)
twpkazrspeccmaskgecopolC1.a0:
  • Spectrum of raw counts from spectrometer(spectra)
  • velocity_bins
  • range
  • time_offset
  • Spectral Width(spectral_width)
  • Mean Doppler Velocity(mean_doppler_velocity)
  • base_time
  • locator_mask
  • time
  • Reflectivity(reflectivity)
  • signal_to_noise_ratio

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DQRID : D140902.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/27/2012172806/08/20120148Missing
12/12/2012020901/19/20130019Missing
08/18/2013104708/20/20131423Missing
09/27/2013202310/01/20131636Missing
12/15/2013020001/31/20141612Missing
05/02/2012121905/03/20121416Missing
08/20/2012234608/23/20122340Missing
08/27/2012195911/19/20120703Missing
09/25/2013000009/25/20132359Missing
12/10/2013145912/12/20131759Missing
01/19/2013025507/12/20132323Missing
09/10/2011091809/12/20111602Missing
Subject:
TWP/KAZR/C1 - Data Not Available
DataStreams:twpkazrhiC1.a1, twpkazrspeccmaskhicopolC1.a0
Description:
DQR documents missing data for periods of 24 hours or longer
Measurements:twpkazrhiC1.a1:
  • Mean doppler velocity, cross-polar, dealiased(mean_doppler_velocity_xpol)
  • range
  • Reflectivity, cross-polarization(reflectivity_xpol)
  • sky_noise_copol
  • signal_to_noise_ratio_copol
  • hot_noise_copol
  • base_time
  • North latitude(lat)
  • cal_constant_copol
  • Spectral width, co-polarization(spectral_width_copol)
  • time
  • cold_noise_xpol
  • Altitude above mean sea level(alt)
  • signal_to_noise_ratio_xpol
  • time_offset
  • sky_noise_xpol
  • rx_noise
  • East longitude(lon)
  • Reflectivity, co-polarization(reflectivity_copol)
  • cal_constant_xpol
  • hot_noise_xpol
  • Spectral width, cross-polar(spectral_width_xpol)
  • Mean doppler velocity, copolar(mean_doppler_velocity_copol)
  • cold_noise_copol
twpkazrspeccmaskhicopolC1.a0:
  • North latitude(lat)
  • Spectral Width(spectral_width)
  • Spectrum of raw counts from spectrometer(spectra)
  • locator_mask
  • time_offset
  • signal_to_noise_ratio
  • time
  • Altitude above mean sea level(alt)
  • Reflectivity(reflectivity)
  • East longitude(lon)
  • Mean Doppler Velocity(mean_doppler_velocity)
  • velocity_bins
  • base_time
  • range

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DQRID : D150106.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/25/2013000009/25/20132359Incorrect
Subject:
TWP/KAZR/C1 - Reprocess: Incorrect Times
DataStreams:twpkazrhiC1.a1
Description:
The samples for time after approximately 08:48 in the subject file are all for 00:00:00.
Measurements:twpkazrhiC1.a1:
  • Mean doppler velocity, cross-polar, dealiased(mean_doppler_velocity_xpol)
  • range
  • rx_noise
  • Reflectivity, cross-polarization(reflectivity_xpol)
  • Reflectivity, co-polarization(reflectivity_copol)
  • sky_noise_copol
  • hot_noise_copol
  • cal_constant_xpol
  • signal_to_noise_ratio_copol
  • hot_noise_xpol
  • base_time
  • Spectral width, cross-polar(spectral_width_xpol)
  • cal_constant_copol
  • Spectral width, co-polarization(spectral_width_copol)
  • Mean doppler velocity, copolar(mean_doppler_velocity_copol)
  • time
  • cold_noise_xpol
  • cold_noise_copol
  • signal_to_noise_ratio_xpol
  • sky_noise_xpol
  • time_offset

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