Data Quality Reports for Session: 185366 User: dzhang4 Completed: 05/04/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D110617.2SGP/MPL/C1 - Water intrusionsgpmplpolfsC1.b1Incorrect
D130528.1SGP/MPL/C1 - Instrument failuresgpmplpolfsC1.b1Incorrect
D140523.4SGP/MPL/C1 - Instrument problemsgpmplpolfsC1.b1Incorrect
D150311.1SGP/MPL/C1 - Reprocessing Notice (RID 1304)sgpmplpolfsC1.b1Does not affect quality
D150626.1SGP/MPL/C1 - Collection problemsgpmplpolfsC1.b1Missing
D151002.1SGP/MPL/C1 - Laser and power supply failuresgpmplpolfsC1.b1Incorrect
D160104.7SGP Site Power Outage Due to Winter StormsgpmplpolfsC1.b1Does not affect quality
D170309.6SGP/MPL/C1 - Polarizer failuresgpmplpolfsC1.b1Incorrect
D170407.2SGP/MPL/C1 - Instrument not switching between polarization modessgpmplpolfsC1.b1Incorrect
D170407.3SGP/MPL/C1 - Missing data: power downsgpmplpolfsC1.b1Missing
D170407.5SGP/MPL/C1 - Missing datasgpmplpolfsC1.b1Missing


DQRID : D110617.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/01/2011000002/03/20111759Incorrect
Subject:
SGP/MPL/C1 - Water intrusion
DataStreams:sgpmplpolfsC1.b1
Description:
Instrument temperatures were incorrect.  On 02/01 and 02/03 they essentially flat lined at 
0 C, while on 02/02 the temps were lower than normal (although given the external temp 
they may be accurate), with several data spikes throughout the day.

Background signal values were excessively low throughout the entire period. Co- and 
cross-pol plotted values appear to have had a 3-5 km artificial elevation, resulting in plotted 
cloud bases appearing much higher than they actually were.

System was not operating correctly due to water intrusion.
Measurements:sgpmplpolfsC1.b1:
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • dead_time_corrected
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • pulse_rep
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • overlap_correction
  • detector_temp
  • max_altitude
  • range_bin_width
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • energy_monitor
  • range_offset
  • Preliminary cloud base height(preliminary_cbh)
  • HLN(VN)
  • scope_temp


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DQRID : D130528.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/13/2013000005/15/20131916Incorrect
Subject:
SGP/MPL/C1 - Instrument failure
DataStreams:sgpmplpolfsC1.b1
Description:
Backscatter data were incorrect then instrument appears to fail entirely. On 
20130515.191731, a new file was created and data appears to be OK. 

Unknown problem but do not use data for specified period.
Measurements:sgpmplpolfsC1.b1:
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • background_signal_std_cross_pol
  • background_signal_cross_pol
  • Attenuated backscatter, copol(signal_return_co_pol)
  • deadtime_correction_counts
  • overlap_correction
  • deadtime_correction
  • background_signal_std_co_pol
  • background_signal_co_pol
  • overlap_correction_heights
  • dead_time_corrected


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DQRID : D140523.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/10/2014204205/12/20141518Incorrect
Subject:
SGP/MPL/C1 - Instrument problem
DataStreams:sgpmplpolfsC1.b1
Description:
Data are incorrect.
Measurements:sgpmplpolfsC1.b1:
  • qc_laser_temp
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • qc_signal_return_co_pol
  • dead_time_corrected
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • pulse_rep
  • qc_signal_return_cross_pol
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • qc_scope_temp
  • overlap_correction
  • detector_temp
  • qc_energy_monitor
  • range_bin_width
  • max_altitude
  • qc_preliminary_cbh
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • qc_range_offset
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • qc_detector_temp
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • range_offset
  • energy_monitor
  • Preliminary cloud base height(preliminary_cbh)
  • scope_temp


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DQRID : D150311.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/01/2010213005/18/20152359Does not affect quality
Subject:
SGP/MPL/C1 - Reprocessing Notice (RID 1304)
DataStreams:sgpmplpolfsC1.b1
Description:
See below for details of reprocessing that was completed on 20160107.
Original DQR category: 0 (Black, Missing).

-----------------------------------------------------------

preliminary_cbh data are were never derived and are set to -9999.
Measurements:sgpmplpolfsC1.b1:
  • Preliminary cloud base height(preliminary_cbh)


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DQRID : D150626.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/19/2015230006/22/20151306Missing
Subject:
SGP/MPL/C1 - Collection problem
DataStreams:sgpmplpolfsC1.b1
Description:
No data available
Measurements:sgpmplpolfsC1.b1:
  • North latitude(lat)
  • qc_laser_temp
  • num_channels
  • background_signal_co_pol
  • qc_time
  • range
  • num_bins
  • qc_signal_return_co_pol
  • dead_time_corrected
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • pulse_rep
  • qc_signal_return_cross_pol
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • East longitude(lon)
  • qc_scope_temp
  • overlap_correction
  • detector_temp
  • qc_energy_monitor
  • base_time
  • range_bin_width
  • max_altitude
  • time_offset
  • qc_preliminary_cbh
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • qc_range_offset
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • qc_detector_temp
  • Altitude above mean sea level(alt)
  • time
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • energy_monitor
  • range_offset
  • Preliminary cloud base height(preliminary_cbh)
  • scope_temp


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DQRID : D151002.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/24/2015040009/28/20151923Incorrect
Subject:
SGP/MPL/C1 - Laser and power supply failure
DataStreams:sgpmplpolfsC1.b1
Description:
Missing and incorrect data due to MPL laser and power supply failure.
Measurements:sgpmplpolfsC1.b1:
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • dead_time_corrected
  • pulse_rep
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • overlap_correction
  • detector_temp
  • max_altitude
  • range_bin_width
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • energy_monitor
  • range_offset
  • Preliminary cloud base height(preliminary_cbh)
  • scope_temp


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DQRID : D160104.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/26/2015000001/01/20162359Does not affect quality
Subject:
SGP Site Power Outage Due to Winter Storm
DataStreams:sgpmplpolfsC1.b1
Description:
On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought 
sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result 
was very very slick roads and mass power outages.
 
The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th.  
The power was restored on 7:56 PM CDT on Wednesday, December 30th
 
Site Emergency procedures were activated and Technicians drained water out of instrument 
reservoirs and other measures as needed, early Monday morning.
 
On Wednesdays as roads and power started was restored to much of the areas east of I-35 , 
Site Technicians performed maintenance on several Extended Facilities.

During this period, data are potentially missing, incorrect, or suspect.  Carefully 
inspect the data before use.
Measurements:sgpmplpolfsC1.b1:
  • North latitude(lat)
  • qc_laser_temp
  • num_channels
  • background_signal_co_pol
  • qc_time
  • range
  • num_bins
  • qc_signal_return_co_pol
  • dead_time_corrected
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • qc_signal_return_cross_pol
  • pulse_rep
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • qc_scope_temp
  • East longitude(lon)
  • overlap_correction
  • detector_temp
  • qc_energy_monitor
  • base_time
  • range_bin_width
  • max_altitude
  • time_offset
  • qc_preliminary_cbh
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • qc_range_offset
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • qc_detector_temp
  • Altitude above mean sea level(alt)
  • time
  • deadtime_correction_counts
  • deadtime_correction
  • range_bin_time
  • background_signal_std_co_pol
  • range_bins
  • energy_monitor
  • range_offset
  • Preliminary cloud base height(preliminary_cbh)
  • scope_temp


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DQRID : D170309.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/23/2017110002/24/20170320Incorrect
Subject:
SGP/MPL/C1 - Polarizer failure
DataStreams:sgpmplpolfsC1.b1
Description:
Polarizer failure during the DQR time period.
Measurements:sgpmplpolfsC1.b1:
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • background_signal_std_cross_pol
  • background_signal_cross_pol
  • Attenuated backscatter, copol(signal_return_co_pol)
  • background_signal_std_co_pol
  • background_signal_co_pol


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DQRID : D170407.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/17/2017201103/18/20170334Incorrect
03/16/2017213503/17/20170320Incorrect
03/19/2017174503/20/20171815Incorrect
03/09/2017190103/10/20170356Incorrect
Subject:
SGP/MPL/C1 - Instrument not switching between polarization modes
DataStreams:sgpmplpolfsC1.b1
Description:
Liquid Cristal is not switching consistently, so laser polarization seems to be "hanging" 
between copol and crosspol modes. Data is incorrect.
Measurements:sgpmplpolfsC1.b1:
  • afterpulse_correction_co_pol
  • laser_fire_bin
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • dead_time_corrected
  • shots_per_avg
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • pulse_rep
  • afterpulse_correction_height
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • background_signal_std_cross_pol
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • overlap_correction
  • detector_temp
  • max_altitude
  • range_bin_width
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • afterpulse_correction_cross_pol
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • range_offset
  • energy_monitor
  • scope_temp


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DQRID : D170407.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/27/2017171003/28/20171955Missing
Subject:
SGP/MPL/C1 - Missing data: power down
DataStreams:sgpmplpolfsC1.b1
Description:
Electrical work was being performed at the GIF trailer, and MPL was turned off.
Measurements:sgpmplpolfsC1.b1:
  • afterpulse_correction_co_pol
  • laser_fire_bin
  • North latitude(lat)
  • qc_laser_temp
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • qc_signal_return_co_pol
  • dead_time_corrected
  • shots_per_avg
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • afterpulse_correction_height
  • pulse_rep
  • qc_signal_return_cross_pol
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • East longitude(lon)
  • qc_scope_temp
  • overlap_correction
  • detector_temp
  • qc_energy_monitor
  • base_time
  • range_bin_width
  • max_altitude
  • time_offset
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • qc_range_offset
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • qc_detector_temp
  • Altitude above mean sea level(alt)
  • time
  • afterpulse_correction_cross_pol
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • energy_monitor
  • range_offset
  • scope_temp


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DQRID : D170407.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/28/2017203703/29/20171544Missing
Subject:
SGP/MPL/C1 - Missing data
DataStreams:sgpmplpolfsC1.b1
Description:
MPL laser did not transmit. Data is missing.
Measurements:sgpmplpolfsC1.b1:
  • afterpulse_correction_co_pol
  • laser_fire_bin
  • North latitude(lat)
  • qc_laser_temp
  • num_channels
  • background_signal_co_pol
  • range
  • num_bins
  • qc_signal_return_co_pol
  • dead_time_corrected
  • shots_per_avg
  • Pressure, associated geometric height, at altitude, NGM model output(height)
  • afterpulse_correction_height
  • pulse_rep
  • qc_signal_return_cross_pol
  • background_signal_std_cross_pol
  • Attenuated backscatter, cross pol(signal_return_cross_pol)
  • laser_temp
  • first_data_bin
  • background_signal_cross_pol
  • East longitude(lon)
  • qc_scope_temp
  • overlap_correction
  • detector_temp
  • qc_energy_monitor
  • base_time
  • range_bin_width
  • max_altitude
  • time_offset
  • Attenuated backscatter, copol(signal_return_co_pol)
  • overlap_correction_heights
  • qc_range_offset
  • mcs_mode
  • polarization_control_voltage
  • polarization_control
  • qc_detector_temp
  • Altitude above mean sea level(alt)
  • time
  • afterpulse_correction_cross_pol
  • deadtime_correction_counts
  • background_signal_std_co_pol
  • range_bin_time
  • deadtime_correction
  • range_bins
  • energy_monitor
  • range_offset
  • scope_temp


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