Data Quality Reports for Session: 183324 User: matthewsa1 Completed: 02/08/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D160407.2AWR/KASACR/XSACR/M1 - General Quality StatementawrkasacrspecM1.00, awrxsacrM1.00, awrxsacrspecM1.00, awrkasacrM1.00Suspect
D160407.3AWR/KASACR/XSACR/M1 - CalibrationawrxsacrM1.00, awrxsacrspecM1.00, awrkasacrM1.00, awrkasacrspecM1.00Suspect
D160422.2AWR/XSACR/M1 - Transmitter FaultingawrxsacrspecM1.00, awrxsacrM1.00Incorrect
D160429.2AWR/XSACR/M1 - Reprocess: Doppler Velocity ReversedawrxsacrspecM1.00, awrxsacrM1.00Incorrect
D161220.2AWR/KASACR/M1 - Suspect Spectral WidthsawrkasacrM1.00Suspect


DQRID : D160407.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/23/2015000001/13/20172359Suspect
Subject:
AWR/KASACR/XSACR/M1 - General Quality Statement
DataStreams:awrkasacrspecM1.00, awrxsacrM1.00, awrxsacrspecM1.00, awrkasacrM1.00
Description:
The SACR 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.  Calibration of the SACRs depends on the careful 
installation of a corner reflector target.  This provides a external calibration reference not 
obtainable with a zenith-pointing radar such as the KAZR.  However, significant data analysis 
is required to assure that the radar is pointing at the target and there are no 
interfering losses in the transmission path.

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, as these issues occur so that they 
can be investigated and corrected if necessary.
Measurements:awrkasacrspecM1.00:
  • Raw data stream - documentation not supported

awrxsacrM1.00:
  • Raw data stream - documentation not supported

awrxsacrspecM1.00:
  • Raw data stream - documentation not supported

awrkasacrM1.00:
  • Raw data stream - documentation not supported


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DQRID : D160407.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/23/2015000001/13/20172359Suspect
Subject:
AWR/KASACR/XSACR/M1 - Calibration
DataStreams:awrxsacrM1.00, awrxsacrspecM1.00, awrkasacrM1.00, awrkasacrspecM1.00
Description:
Note:  These data are not fully calibrated.  The data will be processed to a b1-level data 
product with improved calibration.
Measurements:awrkasacrspecM1.00:
  • Raw data stream - documentation not supported

awrxsacrM1.00:
  • Raw data stream - documentation not supported

awrxsacrspecM1.00:
  • Raw data stream - documentation not supported

awrkasacrM1.00:
  • Raw data stream - documentation not supported


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DQRID : D160422.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/31/2016223204/14/20160951Incorrect
04/27/2016144105/02/20160939Incorrect
Subject:
AWR/XSACR/M1 - Transmitter Faulting
DataStreams:awrxsacrspecM1.00, awrxsacrM1.00
Description:
Transmitter was intermittently faulting during this period.
Measurements:awrxsacrM1.00:
  • Raw data stream - documentation not supported

awrxsacrspecM1.00:
  • Raw data stream - documentation not supported


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DQRID : D160429.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/23/2015000001/13/20172359Incorrect
Subject:
AWR/XSACR/M1 - Reprocess: Doppler Velocity Reversed
DataStreams:awrxsacrspecM1.00, awrxsacrM1.00
Description:
Doppler velocity sign is opposite that of the KaSACR and KAZR
Measurements:awrxsacrM1.00:
  • Raw data stream - documentation not supported

awrxsacrspecM1.00:
  • Raw data stream - documentation not supported


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DQRID : D161220.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/01/2016000011/06/20161400Suspect
Subject:
AWR/KASACR/M1 - Suspect Spectral Widths
DataStreams:awrkasacrM1.00
Description:
For unknown reasons, the spectral widths in the vertical point data were abnormally large 
at times compared to the VPT scans before and/or after.
Measurements:awrkasacrM1.00:
  • Raw data stream - documentation not supported


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