Data Quality Reports for Session: 102735 User: eluke Completed: 11/16/2006


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060629.1TWP/MMCR/C3 - Reprocess: Reflectivity Calibration ProblemstwpmmcrmomC3.b1, twpmmcrspecmomC3.a0


DQRID : D060629.1
Start DateStart TimeEnd DateEnd Time
12/02/2005000007/18/20062359
Subject:
TWP/MMCR/C3 - Reprocess: Reflectivity Calibration Problems
DataStreams:twpmmcrmomC3.b1, twpmmcrspecmomC3.a0
Description:
There was a problem with the reflectivity values being shifted 15-20 dBz less than what 
one might expect them to be.  The low noise amplifier (LNA) was damaged by lightning.  The 
LNA was replaced 20060718.
Measurements:twpmmcrspecmomC3.a0:
  • First Order Estimate of Spectral Count Calibration(CalibrationConstant)
  • Radar Constant(RadarConstant)
  • Receiver Gain(RxGain)
  • Receiver Sky Noise(SkyNoiseLevel)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Receiver 290K Level(Rx290KLevel)
  • Receiver Cal Check Level(CalCheckLevel)

twpmmcrmomC3.b1:
  • Receiver Sky Noise(SkyNoiseLevel)
  • Receiver Cal Check Level(CalCheckLevel)
  • Minimum detectable reflectivity(MinimumDetectableReflectivity)
  • Range Corrected Calibrated Power(RangeCorrectedPower)
  • Receiver 290K Level(Rx290KLevel)
  • MMCR Reflectivity(Reflectivity)
  • Radar Constant(RadarConstant)
  • Receiver Gain(RxGain)


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