Data Quality Reports for Session: 149841 User: amolini Completed: 05/01/2013


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D091106.1SGP/DISDROMETER/C1 - False reports of precipsgpdisdrometerC1.b1
D120113.4SGP/DISDROMETER/C1 - Reprocess: Incorrect datestampsgpdisdrometerC1.b1
D120917.2SGP/DISDROMETER/C1 - Precipitation events not recordedsgpdisdrometerC1.b1
D120917.3SGP/DISDROMETER/C1 - Missing datasgpdisdrometerC1.b1


DQRID : D091106.1
Start DateStart TimeEnd DateEnd Time
06/01/2008000007/01/20090000
Subject:
SGP/DISDROMETER/C1 - False reports of precip
DataStreams:sgpdisdrometerC1.b1
Description:
A number of days during this period show indications of rain on dry days.  This occurred 
during windy periods when vibrations of the splash guard resulted in many small drops 
being recorded.  The splash guard has been removed and the Instrument Handbook has been 
updated with a larger section describing this issue (Section 5.3 on known problems).
Measurements:sgpdisdrometerC1.b1:
  • Precipitation(precip_dis)
  • d_max
  • nd
  • Rainfall rate(rain_rate)
  • liq_water
  • num_drop
  • n_0


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DQRID : D120113.4
Start DateStart TimeEnd DateEnd Time
11/21/2011000011/21/20112359
Subject:
SGP/DISDROMETER/C1 - Reprocess: Incorrect datestamp
DataStreams:sgpdisdrometerC1.b1
Description:
The datestamp was off by one day for a several day period. Precipitation was only reported 
for one day during this time period.  The data for 20111121 should be reported as 
20111122.
Measurements:sgpdisdrometerC1.b1:
  • ef
  • mean_diam_drop_class
  • lambda
  • delta_diam
  • base_time
  • liq_water
  • time
  • num_drop
  • fall_vel
  • lat
  • lon
  • Precipitation(precip_dis)
  • d_max
  • time_offset
  • nd
  • Rainfall rate(rain_rate)
  • Radar reflectivity(Z)
  • alt
  • n_0


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DQRID : D120917.2
Start DateStart TimeEnd DateEnd Time
06/12/2012000007/24/20122359
Subject:
SGP/DISDROMETER/C1 - Precipitation events not recorded
DataStreams:sgpdisdrometerC1.b1
Description:
The instrument was not recording precipitation events seen by other co-located 
instruments.
Measurements:sgpdisdrometerC1.b1:
  • drop_class
  • radar_reflectivity
  • distribution_intercept
  • distribution_slope
  • mean_diam_drop_class
  • diam_max
  • delta_diam
  • liq_water
  • num_drop
  • fall_velocity
  • Precipitation(precip_dis)
  • Rainfall rate(rain_rate)
  • number_density
  • energy_flux


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DQRID : D120917.3
Start DateStart TimeEnd DateEnd Time
07/25/2012000010/12/20121800
Subject:
SGP/DISDROMETER/C1 - Missing data
DataStreams:sgpdisdrometerC1.b1
Description:
Data are missing and unrecoverable.
Measurements:sgpdisdrometerC1.b1:
  • drop_class
  • radar_reflectivity
  • distribution_intercept
  • distribution_slope
  • mean_diam_drop_class
  • diam_max
  • delta_diam
  • base_time
  • liq_water
  • time
  • num_drop
  • fall_velocity
  • lat
  • lon
  • Precipitation(precip_dis)
  • time_offset
  • Rainfall rate(rain_rate)
  • number_density
  • alt
  • energy_flux


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