Data Quality Report for Order ID: 186923
User ID: vghate    Date completed: 2017-07-26
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D160211.2 ENA/UHSAS/C1 - High counts in lower bins enaaosuhsasC1.a1 Incorrect
D151214.1 ENA/UHSAS/C1 - High counts on three lowest channels enaaosuhsasC1.a1 Suspect
D160610.9 ENA/UHSAS/C1 - missing data enaaosuhsasC1.a1 Missing
D160321.1 ENA/UHSAS/C1 - High counts in 3 lowest size bins enaaosuhsasC1.a1 Suspect
D160411.2 ENA/UHSAS/C1 - Instrument not sampling ambient air enaaosuhsasC1.a1 Incorrect
D160209.1 ENA/UHSAS/C1 - High counts in lower bins enaaosuhsasC1.a1 Suspect
D160411.1 ENA/UHSAS/C1 - Intermittent spikes in the lower size bins enaaosuhsasC1.a1 Suspect
D160223.1 ENA/UHSAS/C1 - Intermittent spikes in the lowest channels enaaosuhsasC1.a1 Suspect
D160610.10 ENA/UHSAS/C1 - High counts in lower size bins enaaosuhsasC1.a1 Suspect
D161025.6 ENA/AOS/C1 - Instrument mentors working at the site enaaosuhsasC1.01 Suspect
D170523.7 ENA/AOS/C1 - Maintenance and calibration enaaosuhsasC1.01 Suspect
D141216.3 ENA/UHSAS/C1 - Problem with time fields enaaosuhsasC1.a1 Suspect
D160107.1 ENA/UHSAS/C1 - HEPA filter attached to inlet enaaosuhsasC1.a1 Incorrect
D160126.5 ENA/UHSAS/C1 - Noisy counts / no counts enaaosuhsasC1.a1 Incorrect
D160314.1 ENA/UHSAS/C1 - High counts in the 3 lowest size bins enaaosuhsasC1.a1 Suspect
D170303.12 ENA/AOS/C1 - Dry air supply intermittently not working enaaosuhsasC1.01 Note
D160319.1 ENA/UHSAS/C1 - High counts in the 3 lowest size bins enaaosuhsasC1.a1 Suspect
D151228.1 ENA/UHSAS/C1 - spikes in lower size bins enaaosuhsasC1.a1 Suspect
D170706.1 ENA/CCN/CPC/HTDMA/NEPHELOMETER/UHSAS/C1 - Personnel on site troubleshooting enaaosuhsasC1.a1 Suspect
 
DQR ID: D160211.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-02-10 13:45:00 2016-02-11 12:45:00 Incorrect
Subject: ENA/UHSAS/C1 - High counts in lower bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the 4 lowest bins/channels. Possible contamination. Instrument set up to sample through a filter for troubleshooting. No valid data from the period.
Measurements
  • purge_flow (Purge flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • current (Current)
  • lower_size_limit (Lower particle size limit for each bin)
  • scattering_voltage (Scatter signal)
  • reference (Reference)
  • bin_num (Bin number)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • differential_voltage (Differential_voltage, see instrument manual)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • sample_pressure (Sample pressure)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • temperature (Raw temperature signal)
 
DQR ID: D151214.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-12-12 20:17:41 2015-12-13 21:00:32 Suspect
2015-12-11 10:01:49 2015-12-12 00:58:59 Suspect
2015-12-13 20:41:42 2015-12-14 09:03:12 Suspect
2015-12-10 11:17:24 2015-12-11 06:36:09 Suspect
2015-12-08 17:39:17 2015-12-08 23:46:42 Suspect
Subject: ENA/UHSAS/C1 - High counts on three lowest channels
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the UHSAS three lowest channels. Probably a contamination (a fiber on the jet nozzle) inside the optical chamber. Rest of the channels should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160610.9    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-06-06 22:10:00 2016-06-07 13:40:59 Missing
Subject: ENA/UHSAS/C1 - missing data
Affected Datastreams: enaaosuhsasC1.a1
Description Instrument's internal hard drive was full and no new data was being saved except a few samples occasionally.
Measurements
  • lower_size_limit (Lower particle size limit for each bin)
  • lon (East longitude)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • base_time (Base time in Epoch)
  • time (Time offset from midnight)
  • purge_flow (Purge flow)
  • lat (North latitude)
  • scattering_voltage (Scatter signal)
  • time_offset (Time offset from base_time)
  • temperature (Raw temperature signal)
  • current (Current)
  • bin_num (Bin number)
  • differential_voltage (Differential_voltage, see instrument manual)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • reference (Reference)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • alt (Altitude above mean sea level)
  • sample_pressure (Sample pressure)
 
DQR ID: D160321.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-03-20 04:50:00 2016-03-20 08:22:59 Suspect
Subject: ENA/UHSAS/C1 - High counts in 3 lowest size bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the 3 lowest size bins. Other size bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160411.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-03-30 09:00:00 2016-03-30 11:00:00 Incorrect
2016-03-31 16:00:00 2016-04-01 10:25:00 Incorrect
2016-03-30 15:30:00 2016-03-30 19:00:00 Incorrect
Subject: ENA/UHSAS/C1 - Instrument not sampling ambient air
Affected Datastreams: enaaosuhsasC1.a1
Description Instrument was periodically offline or not sampling ambient air for troubleshooting purposes. Data missing or no valid data.
Measurements
  • purge_flow (Purge flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • current (Current)
  • lower_size_limit (Lower particle size limit for each bin)
  • scattering_voltage (Scatter signal)
  • reference (Reference)
  • bin_num (Bin number)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • differential_voltage (Differential_voltage, see instrument manual)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • sample_pressure (Sample pressure)
  • base_time (Base time in Epoch)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • temperature (Raw temperature signal)
 
DQR ID: D160209.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-02-05 04:53:00 2016-02-05 14:45:00 Suspect
Subject: ENA/UHSAS/C1 - High counts in lower bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the 3 lowest bins/channels. Possible contamination. Other bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160411.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-03-28 22:00:00 2016-04-01 23:30:59 Suspect
Subject: ENA/UHSAS/C1 - Intermittent spikes in the lower size bins
Affected Datastreams: enaaosuhsasC1.a1
Description Intermittent spikes in the 3 lowest size bins. Other size bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160223.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-02-21 05:55:14 2016-02-21 06:36:04 Suspect
2016-02-21 21:34:15 2016-02-21 22:38:45 Suspect
2016-02-19 23:27:02 2016-02-20 02:49:12 Suspect
2016-02-22 01:22:35 2016-02-22 03:00:25 Suspect
Subject: ENA/UHSAS/C1 - Intermittent spikes in the lowest channels
Affected Datastreams: enaaosuhsasC1.a1
Description Intermittent spikes in the 3 lowest size bins. Rest of the bins should be unaffected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160610.10    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-06-07 13:40:00 2016-06-08 02:00:59 Suspect
Subject: ENA/UHSAS/C1 - High counts in lower size bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the 3 lowest size bins. Other size bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D161025.6    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-09-26 08:30:00 2016-10-01 01:00:00 Suspect
Subject: ENA/AOS/C1 - Instrument mentors working at the site
Affected Datastreams: enaaosuhsasC1.01
Description Instrument mentors working at the site. Sample lines and electrical connections being reconfigured. Instruments that had no work done on them may still be affected.
Measurements
  • purge_flow (Purge flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • sample_flow_rate (Sample flow rate)
  • current (Current)
  • lower_size_limit (Lower particle size limit for each bin)
  • scattering_voltage (Scatter signal)
  • reference (Reference)
  • concentration (Computed concentration)
  • bin_num (Bin number)
  • flow (Flow measurement, not implemented)
  • differential_voltage (Differential_voltage, see instrument manual)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • sampling_volume (Sample volume)
  • auxiliary (Auxiliary measurement, not implemented)
  • sample_pressure (Sample pressure)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • temperature (Raw temperature signal)
 
DQR ID: D170523.7    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-05-23 09:00:00 2017-05-30 12:00:00 Suspect
Subject: ENA/AOS/C1 - Maintenance and calibration
Affected Datastreams: enaaosuhsasC1.01
Description Mentors are on site performing maintenance and calibration of AOS instruments. Data are suspect during this work.
Measurements
  • sample_accumulation_time (Sample accumulation time)
  • lower_size_limit (Lower particle size limit for each bin)
  • current_sensor (Current sensor)
  • purge_flow_rate (Purge flow rate)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • sheath_flow_rate (Sheath flow rate)
  • purge_flow (Purge flow)
  • sample_flow_rate (Sample flow rate)
  • scattering_voltage (Scatter signal)
  • concentration (Computed concentration)
  • laser_reference_voltage (Laser reference voltage)
  • temperature (Raw temperature signal)
  • current (Current)
  • bin_num (Bin number)
  • differential_voltage (Differential_voltage, see instrument manual)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • reference (Reference)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • sample_pressure (Sample pressure)
  • raw_temperature_signal (Raw temperature signal)
 
DQR ID: D141216.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-02-17 14:55:31 2016-07-25 18:05:59 Suspect
Subject: ENA/UHSAS/C1 - Problem with time fields
Affected Datastreams: enaaosuhsasC1.a1
Description During the ENA deployment, the UHSAS instrument clock was not synced with a time server. I used a comparison of the peaks in the UHSAS data and the CPC or the PSAP data to determine how far off the clock was. The UHSAS was always within ~2 minutes of the other instruments and the CPU it was attached to. Starting from 2/18/2014 the UHSAS was ~ 45 seconds. slow. It gradually got faster and around 6/2014 it was within seconds of the CPC. It continued in that direction and gradually became slower than the CPC or PSAP. On 1/22/2015 the UHSAS was ~120 seconds slower than the PSAP. At 16:05:00 1/22/2015 the UHSAS time was manually set to the Unit 2 CPU time. This was done remotely and apparantly only to within about 20 seconds. A Document shows the times of the peaks used to determine the time difference. During 2015 until the Domain time II was installed on 07/25/2016 the UHSAS was synced manually about once a month. Between syncs it generally drifted slow. During the period until 06/24/2015 the monthly correction was less than 20 seconds. There was a gap in the corrections and on 10/21/2015 it was corrected from 1 minute 22 seconds slow. The corrections after that were from about 15 to 35 seconds slow. The first time sync after Domain time II was installed corrected the time from 1 minute 12 seconds slow.
Measurements
  • purge_flow (Purge flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • base_time (Base time in Epoch)
  • current (Current)
  • lower_size_limit (Lower particle size limit for each bin)
  • scattering_voltage (Scatter signal)
  • reference (Reference)
  • bin_num (Bin number)
  • flow (Flow measurement, not implemented)
  • differential_voltage (Differential_voltage, see instrument manual)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • sampling_volume (Sample volume)
  • auxiliary (Auxiliary measurement, not implemented)
  • time_offset (Time offset from base_time)
  • sample_pressure (Sample pressure)
  • time (Time offset from midnight)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • temperature (Raw temperature signal)
 
DQR ID: D160107.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-12-30 19:00:00 2016-01-04 16:00:00 Incorrect
Subject: ENA/UHSAS/C1 - HEPA filter attached to inlet
Affected Datastreams: enaaosuhsasC1.a1
Description HEPA filter was attached to the UHSAS inlet for troubleshooting the issues related to DQR D151228.1. No ambient measurements were made during this period.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160126.5    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-01-25 13:00:00 2016-01-26 17:45:00 Incorrect
Subject: ENA/UHSAS/C1 - Noisy counts / no counts
Affected Datastreams: enaaosuhsasC1.a1
Description UHSAS was showing spikes in the lowest channels. An HEPA filter was attached to the inlet for troubleshooting. No valid data during the period with spikes and when the filter was attached.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D160314.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-03-13 12:06:33 2016-03-13 12:40:23 Suspect
2016-03-13 14:25:43 2016-03-13 17:08:04 Suspect
2016-03-11 12:46:11 2016-03-11 15:42:31 Suspect
2016-03-12 03:10:12 2016-03-12 07:37:02 Suspect
Subject: ENA/UHSAS/C1 - High counts in the 3 lowest size bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the lowest 3 size bins. The rest of the bins should be unaffected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D170303.12    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-06-20 00:00:00 2017-03-03 00:00:00 Note
Subject: ENA/AOS/C1 - Dry air supply intermittently not working
Affected Datastreams: enaaosuhsasC1.01
Description Pentras dry air supply intermittently not working. Dry air missing for the humidigraph and the HT-DMA. Dry air supply for those instruments partially replaced by regular undried compressed air, lowering the delivery pressure. No direct effect on other instruments seen.
Measurements
  • lower_size_limit (Lower particle size limit for each bin)
  • lon (East longitude)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • time (Time offset from midnight)
  • base_time (Base time in Epoch)
  • purge_flow (Purge flow)
  • sample_flow_rate (Sample flow rate)
  • lat (North latitude)
  • scattering_voltage (Scatter signal)
  • concentration (Computed concentration)
  • time_offset (Time offset from base_time)
  • temperature (Raw temperature signal)
  • current (Current)
  • bin_num (Bin number)
  • differential_voltage (Differential_voltage, see instrument manual)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • reference (Reference)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • alt (Altitude above mean sea level)
  • sample_pressure (Sample pressure)
 
DQR ID: D160319.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-03-18 05:25:39 2016-03-18 07:35:29 Suspect
Subject: ENA/UHSAS/C1 - High counts in the 3 lowest size bins
Affected Datastreams: enaaosuhsasC1.a1
Description High counts in the 3 lowest size bins. Other size bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D151228.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-12-25 12:00:00 2015-12-28 15:40:00 Suspect
Subject: ENA/UHSAS/C1 - spikes in lower size bins
Affected Datastreams: enaaosuhsasC1.a1
Description Intermittent spikes in the lowest 3 size bins. Probably a contamination that was cleared when a HEPA filter was installed for zero testing. Other bins should not be affected.
Measurements
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
 
DQR ID: D170706.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-06-22 07:00:00 2017-06-30 00:00:00 Suspect
Subject: ENA/CCN/CPC/HTDMA/NEPHELOMETER/UHSAS/C1 - Personnel on site troubleshooting
Affected Datastreams: enaaosuhsasC1.a1
Description FIDO personnel on site troubleshooting and moving instruments and re-configuring sample lines. Some instruments occasionally on cabin air.
Measurements
  • sample_accumulation_time (Sample accumulation time)
  • lower_size_limit (Lower particle size limit for each bin)
  • current_sensor (Current sensor)
  • purge_flow_rate (Purge flow rate)
  • size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
  • auxiliary (Auxiliary measurement, not implemented)
  • sheath_flow_rate (Sheath flow rate)
  • purge_flow (Purge flow)
  • sample_flow_rate (Sample flow rate)
  • scattering_voltage (Scatter signal)
  • concentration (Computed concentration)
  • laser_reference_voltage (Laser reference voltage)
  • temperature (Raw temperature signal)
  • current (Current)
  • bin_num (Bin number)
  • differential_voltage (Differential_voltage, see instrument manual)
  • unit_temperature (Unit temperature)
  • sheath_flow (Sheath flow)
  • upper_size_limit (Upper particle size limit for each bin)
  • reference (Reference)
  • flow (Flow measurement, not implemented)
  • sampling_volume (Sample volume)
  • sample_pressure (Sample pressure)
  • raw_temperature_signal (Raw temperature signal)