Data Quality Report for Order ID: 186924
User ID: vghate    Date completed: 2017-07-26
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D160907.10 ENA/CPC/C1 - New pump slightly under pressure enaaoscpcfC1.b1 Suspect
D160427.7 ENA/C1 - Reprocessed and Corrected: Slightly incorrect location fields enacsphotaotC1.a1 Note
D161025.6 ENA/AOS/C1 - Instrument mentors working at the site enaaoscpcfC1.a1 Suspect
D170621.9 ENA/CPC/C1 - Clogged nozzle enaaoscpcfC1.b1 Missing
D170706.1 ENA/CCN/CPC/HTDMA/NEPHELOMETER/UHSAS/C1 - Personnel on site troubleshooting enaaoscpcfC1.a1 Suspect
D170616.2 ENA/CPC/C1 - Data dropping out from clogged nozzle enaaoscpcfC1.b1 Suspect
D160909.20 ENA/AOS/C1 - Flow problem affecting concentrations enaaoscpcfC1.a1 Incorrect
D170621.8 ENA/CPC/C1 - Material in the instrument nozzle enaaoscpcfC1.a1 Incorrect
D170320.2 ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient. enaaoscpcfC1.b1 Incorrect
D170523.7 ENA/AOS/C1 - Maintenance and calibration enaaospsap3w1sC1.b1 Suspect
D170303.12 ENA/AOS/C1 - Dry air supply intermittently not working enaaosuhsasC1.01 Note
D160701.3 ENA/AOS/C1 - incorrect data enaaoscpcfC1.b1 Incorrect
 
DQR ID: D160907.10    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-08-24 09:00:00 2016-08-29 08:31:59 Suspect
Subject: ENA/CPC/C1 - New pump slightly under pressure
Affected Datastreams: enaaoscpcfC1.b1
Description Due to a pump failure, a different pump was used on the system. The orifice pressure was lower with this additional pump and the system may have been slightly under the pressure required to maintain critical flow on the CPC's critical orifice. Flow rate measurements during this time show very little change in the output flow rate.
Measurements
  • dilution_intercept (Dilution intercept)
  • dilution_valve_position (Dilution flow valve position)
  • laser_current (Laser current)
  • optics_temp (Optics temperature)
  • fraction_full (Liquid fraction available)
  • cabinet_temp (Cabinet temperature)
  • concentration (Particle concentration)
  • saturation_temp (Saturation temperature)
  • dilution_slope (Dilution slope)
  • condensation_temp (Condensation temperature)
  • dilution_correction_factor (Dilution correction factor)
  • dilution_flow_setpoint (Flow setpoint)
  • dilution_flow_reading (Flow read)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • nozzle_pressure (Nozzle pressure)
  • orifice_pressure (Orifice pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
 
DQR ID: D160427.7    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-09-29 09:41:53 2016-04-30 23:59:59 Note
Subject: ENA/C1 - Reprocessed and Corrected: Slightly incorrect location fields
Affected Datastreams: enacsphotaotC1.a1
Description DATA REPROCESSED and CORRECTED: Some of the instruments were being processed with the previous "GRW-Azores" lat/lon/alt instead of the new "ENA-Azores" lat/lon/alt. The differences were minor, but have been corrected. GRW (old) lat = 39.0911 ENA lat = 39.0916 GRW (old) lon = -28.0297 ENA lon = -28.0257 GRW (old) alt = 26 ENA alt = 30.48 The data were archived in October 2016. Please retrieve the reprocessed data for use in your analysis. ORIGINAL DQR CATEGORY: Yellow (suspect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-10 REPROCESS IDENTIFICATION NUMBER: RID 1460 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- Some of the instruments are being processed with the previous "GRW-Azores" lat/lon/alt instead of the new "ENA-Azores" lat/lon/alt. The differences are minor, but will be corrected. The respective GRW and ENA lat, lon, and alt values are as follows: GRW lat = 39.0911 ; ENA lat = 39.0916 ; GRW lon = -28.0297 ; ENA lon = -28.0257 ; GRW alt = 26 ; ENA alt = 30.48 ;
Measurements
  • lon (East longitude)
  • lat (North latitude)
  • alt (Altitude above mean sea level)
 
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: enaaoscpcfC1.a1
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
  • cabinet_temp (Cabinet temperature)
  • dilution_valve_position (Dilution flow valve position)
  • fraction_full (Liquid fraction available)
  • optics_temp (Optics temperature)
  • laser_current (Laser current)
  • dilution_intercept (Dilution intercept)
  • concentration (Particle concentration)
  • saturation_temp (Saturation temperature)
  • dilution_slope (Dilution slope)
  • condensation_temp (Condensation temperature)
  • dilution_flow_setpoint (Flow setpoint)
  • dilution_flow_reading (Flow read)
  • dilution_correction_factor (Dilution correction factor)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • nozzle_pressure (Nozzle pressure)
  • orifice_pressure (Orifice pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
 
DQR ID: D170621.9    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-06-14 13:30:15 2017-06-14 14:05:29 Missing
2017-06-12 14:49:40 2017-06-12 15:40:59 Missing
Subject: ENA/CPC/C1 - Clogged nozzle
Affected Datastreams: enaaoscpcfC1.b1
Description Data missing due to troubleshooting the clogged nozzle problem
Measurements
  • lon (East longitude)
  • dilution_slope (Dilution slope)
  • lat (North latitude)
  • dilution_correction_factor (Dilution correction factor)
  • nozzle_pressure (Nozzle pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
  • cabinet_temp (Cabinet temperature)
  • dilution_valve_position (Dilution flow valve position)
  • saturation_temp (Saturation temperature)
  • condensation_temp (Condensation temperature)
  • dilution_flow_reading (Flow read)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • laser_current (Laser current)
  • optics_temp (Optics temperature)
  • fraction_full (Liquid fraction available)
  • alt (Altitude above mean sea level)
  • base_time (Base time in Epoch)
  • dilution_flow_setpoint (Flow setpoint)
  • time (Time offset from midnight)
  • orifice_pressure (Orifice pressure)
  • time_offset (Time offset from base_time)
  • qc_concentration (Quality check results on field: Particle concentration)
  • dilution_intercept (Dilution intercept)
  • concentration (Particle concentration)
 
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: enaaoscpcfC1.a1
Description FIDO personnel on site troubleshooting and moving instruments and re-configuring sample lines. Some instruments occasionally on cabin air.
Measurements
  • dilution_intercept (Dilution intercept)
  • dilution_valve_position (Dilution flow valve position)
  • cabinet_temp (Cabinet temperature)
  • fraction_full (Liquid fraction available)
  • laser_current (Laser current)
  • optics_temp (Optics temperature)
  • concentration (Particle concentration)
  • saturation_temp (Saturation temperature)
  • dilution_slope (Dilution slope)
  • condensation_temp (Condensation temperature)
  • dilution_flow_setpoint (Flow setpoint)
  • dilution_correction_factor (Dilution correction factor)
  • dilution_flow_reading (Flow read)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • nozzle_pressure (Nozzle pressure)
  • orifice_pressure (Orifice pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
 
DQR ID: D170616.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-06-04 00:00:00 2017-06-05 08:09:59 Suspect
Subject: ENA/CPC/C1 - Data dropping out from clogged nozzle
Affected Datastreams: enaaoscpcfC1.b1
Description An evaluation of another CPC at the site shows a deviation between the instrument data began around this time.
Measurements
  • concentration (Particle concentration)
 
DQR ID: D160909.20    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-09-08 00:35:00 2016-09-08 15:01:59 Incorrect
Subject: ENA/AOS/C1 - Flow problem affecting concentrations
Affected Datastreams: enaaoscpcfC1.a1
Description Due to a flow problem with another instrument on the same sample line, the concentrations reported by the CPC are not representative of the atmospheric concentration of particles
Measurements
  • concentration (Particle concentration)
 
DQR ID: D170621.8    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-06-05 08:10:00 2017-06-14 14:25:19 Incorrect
Subject: ENA/CPC/C1 - Material in the instrument nozzle
Affected Datastreams: enaaoscpcfC1.a1
Description During this period the concentration declined steadily and then went to zero. It was later found that material was in the instrument surrounding the nozzle.
Measurements
  • concentration (Particle concentration)
 
DQR ID: D170320.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-02-22 17:40:00 2017-02-22 19:58:59 Incorrect
Subject: ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient.
Affected Datastreams: enaaoscpcfC1.b1
Description During this time period, changes were being made to upstream plumbing (i.e. the impactor). The cpcf may not have been receiving all sample flow from the ambient during this time period.
Measurements
  • concentration (Particle concentration)
 
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: enaaospsap3w1sC1.b1
Description Mentors are on site performing maintenance and calibration of AOS instruments. Data are suspect during this work.
Measurements
  • cabinet_temp (Cabinet temperature)
  • dilution_valve_position (Dilution flow valve position)
  • fraction_full (Liquid fraction available)
  • dilution_intercept (Dilution intercept)
  • laser_current (Laser current)
  • optics_temp (Optics temperature)
  • concentration (Particle concentration)
  • saturation_temp (Saturation temperature)
  • dilution_slope (Dilution slope)
  • condensation_temp (Condensation temperature)
  • dilution_flow_reading (Flow read)
  • dilution_flow_setpoint (Flow setpoint)
  • dilution_correction_factor (Dilution correction factor)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • nozzle_pressure (Nozzle pressure)
  • orifice_pressure (Orifice pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
 
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
  • lon (East longitude)
  • dilution_slope (Dilution slope)
  • lat (North latitude)
  • dilution_correction_factor (Dilution correction factor)
  • nozzle_pressure (Nozzle pressure)
  • aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
  • cabinet_temp (Cabinet temperature)
  • dilution_valve_position (Dilution flow valve position)
  • saturation_temp (Saturation temperature)
  • condensation_temp (Condensation temperature)
  • dilution_flow_reading (Flow read)
  • ambient_pressure (Ambient pressure)
  • liquid_level (Liquid level)
  • optics_temp (Optics temperature)
  • fraction_full (Liquid fraction available)
  • laser_current (Laser current)
  • alt (Altitude above mean sea level)
  • base_time (Base time in Epoch)
  • dilution_flow_setpoint (Flow setpoint)
  • time (Time offset from midnight)
  • orifice_pressure (Orifice pressure)
  • time_offset (Time offset from base_time)
  • qc_concentration (Quality check results on field: Particle concentration)
  • dilution_intercept (Dilution intercept)
  • concentration (Particle concentration)
 
DQR ID: D160701.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-06-20 18:20:00 2016-06-21 08:35:00 Incorrect
Subject: ENA/AOS/C1 - incorrect data
Affected Datastreams: enaaoscpcfC1.b1
Description During a measurement of the inlet flow rate, the cpcf inlet became plugged and the instrument was flooded with butanol. After removing the butanol and allowing the system to dry, the cpc returned to normal operation.
Measurements
  • concentration (Particle concentration)