Data Quality Reports for Session: 178087 User: carneiror1 Completed: 06/27/2016


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D150619.4MAO/DL/M1 - Banding artifacts in the SNRmaodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1
D150904.2MAO/DL/M1 - Instrument removed from service for repairmaodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1
D150922.4MAO/DL/M1 - Missing DatamaodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1


DQRID : D150619.4
Start DateStart TimeEnd DateEnd Time
05/12/2015230006/15/20152330
Subject:
MAO/DL/M1 - Banding artifacts in the SNR
DataStreams:maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1
Description:
Time height displays of the intensity (SNR+1) and backscatter fields exhibit obvious 
horizontal banding artifacts. The bands are regions where the SNR goes negative - which isn't 
physical. The problem was caused by a glitch in the noise whitening procedure. The 
problem was fixed when the driver for the data acquisition card was updated.
The radial velocities do not exhibit obvious banding; however, they were likely affected 
in some way.
Measurements:maodlppiM1.b1:
  • Attenuated backscatter(attenuated_backscatter)
  • Radial velocity(radial_velocity)
  • intensity

maodlfptM1.b1:
  • Attenuated backscatter(attenuated_backscatter)
  • intensity
  • Radial velocity(radial_velocity)

maodlcal2M1.b1:
  • Radial velocity(radial_velocity)
  • intensity
  • Attenuated backscatter(attenuated_backscatter)


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DQRID : D150904.2
Start DateStart TimeEnd DateEnd Time
08/28/2015020012/31/20152359
Subject:
MAO/DL/M1 - Instrument removed from service for repair
DataStreams:maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1
Description:
The AMF1 Doppler lidar was taken offline and packed for shipping to the vendor (Halo 
Photonics) on 28 August. Engineers at Halo will preform repairs and upgrades to the 
instrument. Data from the instrument will not be available for the remainder of the current AMF1 
deployment in Brazil.
Measurements:maodlppiM1.b1:
  • Attenuated backscatter(attenuated_backscatter)
  • North latitude(lat)
  • time
  • Radial velocity(radial_velocity)
  • qc_time
  • East longitude(lon)
  • base_time
  • elevation
  • Altitude above mean sea level(alt)
  • qc_radial_velocity
  • time_offset
  • azimuth
  • range
  • intensity

maodlfptM1.b1:
  • North latitude(lat)
  • Attenuated backscatter(attenuated_backscatter)
  • base_time
  • azimuth
  • time_offset
  • range
  • qc_time
  • time
  • Radial velocity(radial_velocity)
  • intensity
  • qc_radial_velocity
  • East longitude(lon)
  • Altitude above mean sea level(alt)
  • elevation

maodlcal2M1.b1:
  • qc_time
  • intensity
  • base_time
  • qc_radial_velocity
  • East longitude(lon)
  • Altitude above mean sea level(alt)
  • North latitude(lat)
  • elevation
  • range
  • time_offset
  • Radial velocity(radial_velocity)
  • Attenuated backscatter(attenuated_backscatter)
  • time
  • azimuth


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DQRID : D150922.4
Start DateStart TimeEnd DateEnd Time
04/19/2015150008/28/20150200
Subject:
MAO/DL/M1 - Missing Data
DataStreams:maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1
Description:
The DL suffered from numerous outages during this period.  Some of these periods are 
longer than 24 hours while many are less.  The DL was sent off for repairs on 8/28 and will 
not be deployed again at MAO.
Measurements:maodlppiM1.b1:
  • Attenuated backscatter(attenuated_backscatter)
  • Radial velocity(radial_velocity)
  • intensity

maodlfptM1.b1:
  • Attenuated backscatter(attenuated_backscatter)
  • intensity
  • Radial velocity(radial_velocity)

maodlcal2M1.b1:
  • Radial velocity(radial_velocity)
  • intensity
  • Attenuated backscatter(attenuated_backscatter)


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