Data Quality Reports for Session: 154496 User: eluke Completed: 11/15/2013

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100729.5GRW/WACR/M1 - Reprocessed: Reflectivity and Height OffsetsgrwwacrM1.b1, grwwacrspeccmaskcopolM1.a0, grwwacrspeccmaskxpolM1.a0
D130725.3GRW/WACR/M1 - Incorrect value for antenna_altitude global attributegrwwacrspeccmaskcopolM1.a0, grwwacrspeccmaskxpolM1.a0


DQRID : D100729.5
Start DateStart TimeEnd DateEnd Time
05/14/2009000001/06/20110800
Subject:
GRW/WACR/M1 - Reprocessed: Reflectivity and Height Offsets
DataStreams:grwwacrM1.b1, grwwacrspeccmaskcopolM1.a0, grwwacrspeccmaskxpolM1.a0
Description:
The instrument vendor informed us of a range (height) offset of 13 m and provided updated 
reflectivity calibration.  All values reported for 'Reflectivity' were approximately 3 dB 
too low.   In addition, the Reflectivity in the first and fourth range gates (starting 
from the surface) needed to be further corrected by an additional 2.7 and -0.9 dB, 
respectively. The 'height' field values were 13.33 m too low.  The data were reprocessed to 
correct these problems.

The grwwacrM1.b1 data were reprocessed and archived in October 2010.  The 
grwwacrspeccmaskcopolM1.a0 and grwwacrspeccmaskxpolM1.a0 data were reprocessed and archived in January 
2012.
Measurements:grwwacrspeccmaskcopolM1.a0:
  • Cloud, reflectivity, at altitude(Reflectivity)
  • heights
grwwacrM1.b1:
  • Cloud, reflectivity, at altitude(Reflectivity)
  • heights
grwwacrspeccmaskxpolM1.a0:
  • Cloud, reflectivity, at altitude(Reflectivity)
  • heights

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DQRID : D130725.3
Start DateStart TimeEnd DateEnd Time
05/14/2009181310/06/20110859
Subject:
GRW/WACR/M1 - Incorrect value for antenna_altitude global attribute
DataStreams:grwwacrspeccmaskcopolM1.a0, grwwacrspeccmaskxpolM1.a0
Description:
The global attribute antenna_altitude is incorrect.  The correct value should be 3.8608 m. 
 This is the height of the WACR antenna above the ground.  The value is used, along with 
site altitude, in converting heights above MSL to range above the radar antenna.
Measurements:grwwacrspeccmaskcopolM1.a0:
  • heights
grwwacrspeccmaskxpolM1.a0:
  • heights

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