Data Quality Reports for Session: 178042 User: balmesk1 Completed: 06/23/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D130828.1TWP/RL/C3 - Missing datatwprllogC3.a0
D131113.1TWP/RL/C3 - Missing datatwprllogC3.a0
D140725.9TWP/RL/C3 - Instrument problemtwprllogC3.a0
D140926.4TWP/RL/C3 - Failed laser system resulted with missing datatwprllogC3.a0
D141201.2TWP/RL/C3 - Laser power supply prolemstwprllogC3.a0


DQRID : D130828.1
Start DateStart TimeEnd DateEnd Time
06/27/2013111008/09/20130630
Subject:
TWP/RL/C3 - Missing data
DataStreams:twprllogC3.a0
Description:
The instrument was down during this period due to a failure of a power supply in the laser 
system.
Measurements:twprllogC3.a0:
  • base_time
  • East longitude(lon)
  • tweak_type
  • counts
  • Altitude above mean sea level(alt)
  • time
  • North latitude(lat)
  • al_peak_found
  • time_offset

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DQRID : D131113.1
Start DateStart TimeEnd DateEnd Time
09/06/2013090010/31/20130600
Subject:
TWP/RL/C3 - Missing data
DataStreams:twprllogC3.a0
Description:
The system experienced another laser power supply failure on 6 September. The simmer 
module for the amplifiers died, so the flash lamps did not operate. 

Data are missing and unrecoverable.
Measurements:twprllogC3.a0:
  • base_time
  • East longitude(lon)
  • tweak_type
  • counts
  • Altitude above mean sea level(alt)
  • time
  • North latitude(lat)
  • al_peak_found
  • time_offset

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DQRID : D140725.9
Start DateStart TimeEnd DateEnd Time
06/17/2014000007/18/20140330
Subject:
TWP/RL/C3 - Instrument problem
DataStreams:twprllogC3.a0
Description:
The system was mostly down during the period in question due a failure in the laser 
system. However, there were some brief and intermittent periods when data were acquired as the 
system was being worked on. The quality of these data is very questionable, and should 
not be used for scientific analysis.
Measurements:twprllogC3.a0:
  • base_time
  • East longitude(lon)
  • tweak_type
  • counts
  • Altitude above mean sea level(alt)
  • time
  • North latitude(lat)
  • al_peak_found
  • time_offset

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DQRID : D140926.4
Start DateStart TimeEnd DateEnd Time
08/27/2014160009/25/20140525
Subject:
TWP/RL/C3 - Failed laser system resulted with missing data
DataStreams:twprllogC3.a0
Description:
The laser system experienced cooling problems and was shutdown to prevent damage.
Measurements:twprllogC3.a0:
  • base_time
  • East longitude(lon)
  • tweak_type
  • counts
  • Altitude above mean sea level(alt)
  • time
  • North latitude(lat)
  • al_peak_found
  • time_offset

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DQRID : D141201.2
Start DateStart TimeEnd DateEnd Time
10/09/2014060011/19/20140609
Subject:
TWP/RL/C3 - Laser power supply prolems
DataStreams:twprllogC3.a0
Description:
The TWPRL was down during the period in question due to problems with a laser power 
supply. Continuum has assembled and tested a power supply with the high-voltage component 
provided by a different vendor. The new power was installed and the lidar system was brought 
back into operation.
Measurements:twprllogC3.a0:
  • base_time
  • East longitude(lon)
  • tweak_type
  • counts
  • Altitude above mean sea level(alt)
  • time
  • North latitude(lat)
  • al_peak_found
  • time_offset

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