Data Quality Reports for Session: 185246 User: zhengg1 Completed: 04/26/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D160907.10ENA/CPC/C1 - New pump slightly under pressureenaaoscpcfC1.b1, enaaoscpcfC1.a1Suspect
D160907.11ENA/TRACEGAS/C1 - Flow meters not operatingenaaoscoC1.01, enaaoscoC1.b1Does not affect quality
D160909.20ENA/AOS/C1 - Flow problem affecting concentrationsenaaoscpcfC1.a1, enaaoscpcfC1.b1Incorrect
D161025.6ENA/AOS/C1 - Instrument mentors working at the siteenaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01Suspect
D161026.2ENA/AOSMET/OZONE/TRACEGAS/C1 - missing dataenaaoscoC1.01, enaaoscoC1.b1Missing
D161216.5ENA/TRACEGAS/C1 - Power failureenaaoscoC1.01, enaaoscoC1.b1Incorrect
D170303.12ENA/AOS/C1 - Dry air supply intermittently not workingenaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01Does not affect quality
D170320.2ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient. enaaoscpcfC1.a1, enaaoscpcfC1.b1Incorrect


DQRID : D160907.10
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/24/2016090008/29/20160831Suspect
Subject:
ENA/CPC/C1 - New pump slightly under pressure
DataStreams:enaaoscpcfC1.b1, enaaoscpcfC1.a1
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:enaaoscpcfC1.a1:
  • Aerosol concentration averaged over times to match N_CCN(concentration)

enaaoscpcfC1.b1:
  • dilution_intercept
  • liquid_level
  • nozzle_pressure
  • cabinet_temp
  • fraction_full
  • dilution_slope
  • dilution_valve_position
  • orifice_pressure
  • dilution_flow_setpoint
  • condensation_temp
  • saturation_temp
  • laser_current
  • ambient_pressure
  • aerosol_flow_calibrated
  • dilution_correction_factor
  • dilution_flow_reading
  • optics_temp


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DQRID : D160907.11
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/25/2016114109/07/20161900Does not affect quality
Subject:
ENA/TRACEGAS/C1 - Flow meters not operating
DataStreams:enaaoscoC1.01, enaaoscoC1.b1
Description:
Flow meters were not operating so that there were no standard adds for calibration.
Measurements:enaaoscoC1.01:
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • Calculated CO concentration(co)

enaaoscoC1.b1:
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Calculated CO concentration(co)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)


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DQRID : D160909.20
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/08/2016003509/08/20161501Incorrect
Subject:
ENA/AOS/C1 - Flow problem affecting concentrations
DataStreams:enaaoscpcfC1.a1, enaaoscpcfC1.b1
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:enaaoscpcfC1.a1:
  • Aerosol concentration averaged over times to match N_CCN(concentration)

enaaoscpcfC1.b1:
  • Aerosol concentration averaged over times to match N_CCN(concentration)


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DQRID : D161025.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/26/2016083010/01/20160100Suspect
Subject:
ENA/AOS/C1 - Instrument mentors working at the site
DataStreams:enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01
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:enaaoscpcfC1.a1:
  • ambient_temp
  • dilution_valve_position
  • dilution_flow_reading
  • dilution_flow_setpoint
  • laser_current
  • nozzle_pressure
  • optics_temp
  • condensation_temp
  • saturation_temp
  • fraction_full
  • Aerosol concentration averaged over times to match N_CCN(concentration)
  • liquid_level
  • ambient_pressure
  • orifice_pressure
  • cabinet_temp

enaaoscoC1.01:
  • gas_temperature
  • ambient_temperature
  • mass_flow_through_MFC_2
  • mass_flow_through_MFC_1
  • Calculated CO concentration(co)
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • gas_pressure
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • valve_position_MFC_1
  • valve_position_MFC_2
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • set_point_for_MFC_2
  • set_point_for_MFC_1

enaaoscpcfC1.b1:
  • cabinet_temp
  • dilution_valve_position
  • optics_temp
  • nozzle_pressure
  • dilution_slope
  • Aerosol concentration averaged over times to match N_CCN(concentration)
  • condensation_temp
  • aerosol_flow_calibrated
  • dilution_correction_factor
  • dilution_flow_reading
  • orifice_pressure
  • ambient_pressure
  • dilution_intercept
  • liquid_level
  • fraction_full
  • dilution_flow_setpoint
  • saturation_temp
  • laser_current

enaaoscoC1.b1:
  • ambient_temperature
  • gas_pressure
  • gas_temperature
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • set_point_for_MFC_1
  • set_point_for_MFC_2
  • Calculated CO concentration(co)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • valve_position_MFC_2
  • valve_position_MFC_1
  • mass_flow_through_MFC_2
  • mass_flow_through_MFC_1
  • seconds_after_calibration


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DQRID : D161026.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/25/2016005010/25/20160518Missing
Subject:
ENA/AOSMET/OZONE/TRACEGAS/C1 - missing data
DataStreams:enaaoscoC1.01, enaaoscoC1.b1
Description:
The Unit 1 computer was found stuck in boot screen and had to be powered off to reboot.  
Data is missing for this period.
Measurements:enaaoscoC1.01:
  • gas_temperature
  • North latitude(lat)
  • gas_pressure
  • mass_flow_through_MFC_2
  • ambient_temperature
  • mass_flow_through_MFC_1
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • time_offset
  • Calculated CO concentration(co)
  • valve_position_MFC_1
  • valve_position_MFC_2
  • East longitude(lon)
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • base_time
  • time
  • Altitude above mean sea level(alt)
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • set_point_for_MFC_2
  • set_point_for_MFC_1
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)

enaaoscoC1.b1:
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • North latitude(lat)
  • qc_co
  • Altitude above mean sea level(alt)
  • time_offset
  • ambient_temperature
  • qc_n2o_dry
  • set_point_for_MFC_1
  • set_point_for_MFC_2
  • gas_pressure
  • base_time
  • Calculated CO concentration(co)
  • gas_temperature
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • valve_position_MFC_2
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • qc_h2o
  • valve_position_MFC_1
  • time
  • mass_flow_through_MFC_2
  • mass_flow_through_MFC_1
  • qc_co_dry
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • qc_n2o
  • seconds_after_calibration
  • East longitude(lon)


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DQRID : D161216.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/11/2016161011/12/20160937Incorrect
Subject:
ENA/TRACEGAS/C1 - Power failure
DataStreams:enaaoscoC1.01, enaaoscoC1.b1
Description:
Instrument restarted after a power failure. Data not correct.  Problem resolved after 
Operator intervention.
Measurements:enaaoscoC1.01:
  • gas_temperature
  • gas_pressure
  • mass_flow_through_MFC_2
  • ambient_temperature
  • mass_flow_through_MFC_1
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Calculated CO concentration(co)
  • valve_position_MFC_1
  • valve_position_MFC_2
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • set_point_for_MFC_2
  • set_point_for_MFC_1
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)

enaaoscoC1.b1:
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • ambient_temperature
  • set_point_for_MFC_1
  • set_point_for_MFC_2
  • gas_pressure
  • Calculated CO concentration(co)
  • gas_temperature
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • valve_position_MFC_2
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • valve_position_MFC_1
  • mass_flow_through_MFC_2
  • mass_flow_through_MFC_1
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • seconds_after_calibration


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DQRID : D170303.12
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/20/2016000003/03/20170000Does not affect quality
Subject:
ENA/AOS/C1 - Dry air supply intermittently not working
DataStreams:enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01
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:enaaoscoC1.01:
  • gas_temperature
  • North latitude(lat)
  • mass_flow_through_MFC_2
  • ambient_temperature
  • mass_flow_through_MFC_1
  • time_offset
  • Calculated CO concentration(co)
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • time
  • Altitude above mean sea level(alt)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • gas_pressure
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • valve_position_MFC_1
  • valve_position_MFC_2
  • East longitude(lon)
  • base_time
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • set_point_for_MFC_2
  • set_point_for_MFC_1

enaaoscpcfC1.a1:
  • East longitude(lon)
  • time
  • dilution_valve_position
  • Altitude above mean sea level(alt)
  • dilution_flow_reading
  • dilution_flow_setpoint
  • laser_current
  • nozzle_pressure
  • time_offset
  • optics_temp
  • condensation_temp
  • saturation_temp
  • fraction_full
  • Aerosol concentration averaged over times to match N_CCN(concentration)
  • liquid_level
  • ambient_pressure
  • orifice_pressure
  • North latitude(lat)
  • base_time
  • cabinet_temp

enaaoscpcfC1.b1:
  • cabinet_temp
  • dilution_valve_position
  • optics_temp
  • nozzle_pressure
  • dilution_slope
  • Aerosol concentration averaged over times to match N_CCN(concentration)
  • condensation_temp
  • dilution_correction_factor
  • aerosol_flow_calibrated
  • dilution_flow_reading
  • North latitude(lat)
  • time
  • base_time
  • Altitude above mean sea level(alt)
  • orifice_pressure
  • ambient_pressure
  • time_offset
  • East longitude(lon)
  • dilution_intercept
  • liquid_level
  • fraction_full
  • dilution_flow_setpoint
  • qc_concentration
  • laser_current
  • saturation_temp

enaaoscoC1.b1:
  • Altitude above mean sea level(alt)
  • ambient_temperature
  • qc_n2o_dry
  • gas_pressure
  • base_time
  • gas_temperature
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • qc_h2o
  • qc_co_dry
  • Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(n2o_dry)
  • Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and
    calculated with nominal sensitivity correction(co_dry)
  • North latitude(lat)
  • qc_co
  • time_offset
  • set_point_for_MFC_1
  • set_point_for_MFC_2
  • Calculated CO concentration(co)
  • Nitrous oxide (N2O) mixing ratio calculated with nominal sensitivity correction(n2o)
  • valve_position_MFC_2
  • valve_position_MFC_1
  • time
  • mass_flow_through_MFC_2
  • mass_flow_through_MFC_1
  • qc_n2o
  • seconds_after_calibration
  • East longitude(lon)


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DQRID : D170320.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/22/2017174002/22/20171958Incorrect
Subject:
ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient.
DataStreams:enaaoscpcfC1.a1, 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:enaaoscpcfC1.a1:
  • Aerosol concentration averaged over times to match N_CCN(concentration)

enaaoscpcfC1.b1:
  • Aerosol concentration averaged over times to match N_CCN(concentration)


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