Data Quality Reports for Session: 183995 User: lkberg Completed: 03/03/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D150619.1SGP/DL/C1 - InstrumentsgpdlfptC1.b1Missing
D160229.3SGP/DL/DLPROF/C1 - Instrumental artifact in vertical velocity variance profilessgpdlfptC1.b1Suspect


DQRID : D150619.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/17/2015110006/18/20152200Missing
Subject:
SGP/DL/C1 - Instrument
DataStreams:sgpdlfptC1.b1
Description:
The instrument failed to restart following a site-wide power outage due to a glitch in the 
automated start up procedure. The problem has since been fixed.
Measurements:sgpdlfptC1.b1:
  • North latitude(lat)
  • azimuth
  • time_offset
  • Altitude above mean sea level(alt)
  • Radial velocity(radial_velocity)
  • range
  • intensity
  • Attenuated backscatter(attenuated_backscatter)
  • East longitude(lon)
  • base_time
  • elevation
  • time

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DQRID : D160229.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/20/2011160007/23/20151900Suspect
Subject:
SGP/DL/DLPROF/C1 - Instrumental artifact in vertical velocity variance profiles
DataStreams:sgpdlfptC1.b1
Description:
Long-term averages of vertical velocity variance profiles developed from vertical staring 
data show a height-dependent sinusoidal modulation superimposed on the atmospheric 
variance profile. This modulation causes a wiggle in the variance profile. The period of the 
wiggle is about 350 m, and the effect is most obvious during hot afternoon periods in the 
summer months. The exact cause of this problem is not known, but we suspect that it may be 
caused by temperature sensitivity in beam alignment.
Measurements:sgpdlfptC1.b1:
  • Radial velocity(radial_velocity)

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