Data Quality Report

Data Quality Report for Order ID: 187106
User ID: zhengg1 Date completed: 2017-08-07

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D170802.8	ENA/HTDMA/NEPHELOMETER/C1 - No dry air supply	enaaosnephwet1mC1.b1	Suspect
D170705.4	ENA/HTDMA/NEPHELOMETER/C1 - Dry air low pressure	enaaosnephwet1mC1.b1	Suspect
D170731.1	ENA/CCN/C1 - Instrument in safe mode	enaaosccn100C1.01	Incorrect
D170726.7	ENA/CO-ANALYZER/C1 - Reprocess: Valve position fields incorrect	enaaoscoC1.b1	Incorrect
D170724.3	ENA/ACSM/C1 - Low inlet pressure	enaaosacsmC1.a1	Suspect

DQR ID: D170802.8 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-08-02	12:00:00	2017-08-02	14:05:00	Suspect

Subject:	ENA/HTDMA/NEPHELOMETER/C1 - No dry air supply
Affected Datastreams:	enaaosnephwet1mC1.b1
Description	Dry air supply failed. Instruments working normally, but with a different RH than specified.
Measurements	qc_Bbs_R_Dry_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at dry or reference RH) lamp_current (Lamp current) qc_Bbs_G_Dry_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal green wavelength at dry or reference RH) Bbs_G_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal green wavelength at ramped RH) qc_T_Neph_Dry (Quality check results on field: Sample temperature inside reference nephelometer) qc_Bbs_R_Wet_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at ramped RH) qc_T_Neph_Inlet_Wet (Quality check results on field: Temperature at humidified nephelometer inlet) seconds_after_transition (Seconds since last impactor transition) RH_Neph_Wet (Relative humidity inside humidified nephelometer) qc_Bs_R_Dry_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal red wavelength at dry or reference RH) qc_RH_Neph_Wet (Quality check results on field: Relative humidity inside humidified nephelometer) qc_Bs_G_Wet_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal green wavelength at ramped RH) base_time (Base time in Epoch) bin (Bin number) qc_impactor_state (Quality check results on field: Impactor particle size cut) qc_Bbs_B_Dry_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at dry or reference RH) scan_max_diameter_setting (Maximum aerosol particle diameter instrument setting) T_Neph_Wet (Sample temperature inside humidified nephelometer) qc_impactor_state (Quality check results on field: Impactor state in terms of aerodynamic diameter cut off) Bbs_G_Dry_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal green wavelength at dry or reference RH) Bs_G_Dry_Neph3W (Aerosol total light scattering coefficient, nominal green wavelength at dry or reference RH) lat (North latitude) scan_min_diameter_setting (Minimum aerosol particle diameter instrument setting) qc_Bs_B_Dry_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal blue wavelength at dry or reference RH) qc_Bs_B_Wet_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH) total_concentration (Total scan concentration over all bins) mode_flag (Instrument operating mode) qc_P_Neph_Wet (Quality check results on field: Pressure inside humidified nephelometer) Bs_B_Wet_Neph3W (Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH) P_Neph_Wet (Pressure inside humidified nephelometer) density_correction_factor (Correction to humidified nephelometer measurements to standard temperature and pressure) qc_Bbs_B_Wet_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at ramped RH) instrument_state (Instrument state) time_offset (Time offset from base_time) Bs_G_Wet_Neph3W (Aerosol total light scattering coefficient, nominal green wavelength at ramped RH) scan_time_setting (Humidified DMA scanning time instrument setting) sample_flow (Aerosol sample flow rate) P_Neph_Dry (Pressure inside reference nephelometer) alt (Altitude above mean sea level) Bs_R_Wet_Neph3W (Aerosol total light scattering coefficient, nominal red wavelength at ramped RH) density_correction_factor (Correction to ambient nephelometer measurements to standard temperature and pressure) Bbs_B_Dry_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at dry or reference RH) qc_RH_Neph_Dry (Quality check results on field: Relative humidity inside reference nephelometer) qc_T_Neph_Inlet_Dry (Quality check results on field: Temperature at reference nephelometer inlet) scan_type (Sampling mode scan type) RH_Neph_Dry (Relative humidity inside reference nephelometer) dry_rh_setting (Dry aerosol particle relative humidity instrument setting) time (Time offset from midnight) lamp_voltage (Lamp voltage) humid_rh (Humid aerosol particle relative humidity) dry_diameter_setting (Dry aerosol diameter size instrument setting) bin_center (Bin center value) atomizer (Atomizer calibration status) impactor_state (Impactor particle size cut) Bbs_R_Dry_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at dry or reference RH) T_Neph_Inlet_Dry (Temperature at reference nephelometer inlet) T_Neph_Inlet_Wet (Temperature at humidified nephelometer inlet) impactor_state (Impactor state in terms of aerodynamic diameter cut off) num_bins (Number of distribution bins) Bbs_B_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at ramped RH) qc_T_Neph_Wet (Quality check results on field: Sample temperature inside humidified nephelometer) T_Neph_Dry (Sample temperature inside reference nephelometer) Bbs_R_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at ramped RH) seconds_after_transition (seconds since last impactor transition) qc_P_Neph_Dry (Quality check results on field: Pressure inside reference nephelometer) time_bounds (Time cell bounds) bin_width (Bin width) qc_Bs_G_Dry_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal green wavelength at dry or reference RH) aerosol_concentration (Concentration of aerosol) Bs_R_Dry_Neph3W (Aerosol total light scattering coefficient, nominal red wavelength at dry or reference RH) Bs_B_Dry_Neph3W (Aerosol total light scattering coefficient, nominal blue wavelength at dry or reference RH) qc_Bs_R_Wet_Neph3W (Quality check results on field: Aerosol total light scattering coefficient, nominal red wavelength at ramped RH) lon (East longitude) qc_Bbs_G_Wet_Neph3W (Quality check results on field: Aerosol back-hemispheric light scattering coefficient, nominal green wavelength at ramped RH)

DQR ID: D170705.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-06-29	11:00:00	2017-07-01	08:00:00	Suspect
2017-06-20	08:00:00	2017-06-20	13:00:00	Suspect
2017-06-27	15:00:00	2017-06-28	13:00:00	Suspect
2017-06-24	16:00:00	2017-06-26	09:00:00	Suspect

Subject:	ENA/HTDMA/NEPHELOMETER/C1 - Dry air low pressure
Affected Datastreams:	enaaosnephwet1mC1.b1
Description	Dry air system efficiency low, not able to keep air pressure up. HT-DMA and humidigraph drying efficiency affected. HT-DMA flow stability affected. Humidigraph data unaffected, just RH is different than nominal. Effect on HT-DMA data is uncertain.
Measurements	lamp_current (Lamp current) Bbs_G_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal green wavelength at ramped RH) seconds_after_transition (Seconds since last impactor transition) RH_Neph_Wet (Relative humidity inside humidified nephelometer) bin (Bin number) scan_max_diameter_setting (Maximum aerosol particle diameter instrument setting) T_Neph_Wet (Sample temperature inside humidified nephelometer) scan_min_diameter_setting (Minimum aerosol particle diameter instrument setting) total_concentration (Total scan concentration over all bins) mode_flag (Instrument operating mode) Bs_B_Wet_Neph3W (Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH) P_Neph_Wet (Pressure inside humidified nephelometer) density_correction_factor (Correction to humidified nephelometer measurements to standard temperature and pressure) instrument_state (Instrument state) sample_flow (Aerosol sample flow rate) Bs_G_Wet_Neph3W (Aerosol total light scattering coefficient, nominal green wavelength at ramped RH) scan_time_setting (Humidified DMA scanning time instrument setting) Bs_R_Wet_Neph3W (Aerosol total light scattering coefficient, nominal red wavelength at ramped RH) density_correction_factor (Correction to ambient nephelometer measurements to standard temperature and pressure) scan_type (Sampling mode scan type) dry_rh_setting (Dry aerosol particle relative humidity instrument setting) lamp_voltage (Lamp voltage) humid_rh (Humid aerosol particle relative humidity) dry_diameter_setting (Dry aerosol diameter size instrument setting) bin_center (Bin center value) atomizer (Atomizer calibration status) impactor_state (Impactor particle size cut) T_Neph_Inlet_Wet (Temperature at humidified nephelometer inlet) impactor_state (Impactor state in terms of aerodynamic diameter cut off) num_bins (Number of distribution bins) Bbs_R_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at ramped RH) seconds_after_transition (seconds since last impactor transition) bin_width (Bin width) aerosol_concentration (Concentration of aerosol) Bbs_B_Wet_Neph3W (Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at ramped RH)

DQR ID: D170731.1 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-07-28	23:00:00	2017-07-29	00:00:10	Incorrect
2017-07-29	07:00:00	2017-07-29	08:00:00	Incorrect

Subject:	ENA/CCN/C1 - Instrument in safe mode
Affected Datastreams:	enaaosccn100C1.01
Description	Instrument went into safe mode due to low counts. Instrument was working fine, just the ambient aerosol concentration was very low.
Measurements	CCN_T_read_TEC2 (AOS CCN observed temperature at middle of column) CCN_T_nafion_set (AOS CCN set temperature for the Nafion humidifier) seconds_after_transition (Seconds since last impactor transition) CCN_Q_sample (AOS CCN volumetric flowrate of sample air) N_CCN_dN (AOS CCN droplet count by bin size) CCN_OPC_set (AOS CCN set point temperature for the optical particle counter (OPC)) N_CCN_bin_number (AOS bin number of lowest channel of OPC include in summation of N_CCN) CCN_T_read_TEC1 (AOS CCN observed temperature at top of column) base_time (Base time in Epoch) CCN_T_sample (AOS CCN temperature of sample air entering the column) size_bin_bounds (Droplet bin bounds) lat (North latitude) CCN_T_inlet_set (AOS CCN set point temperature for the inlet manifold) CCN_T_set_TEC2 (AOS CCN set point for temperature at middle of column) CCN_supersaturation_set_point (AOS CCN sample supersaturation set point value reported by instrument) CCN_proportional_valve_voltage (CCN Proportional valve voltage) CCN_overflow (Number of particles that are larger than 10um) time_offset (Time offset from base_time) CCN_laser_current (AOS CCN OPC laser current) alt (Altitude above mean sea level) CCN_baseline_monitor (AOS CCN voltage used by DMT for OPC diagnostic purposes) CCN_temp_unstable (AOS CCN logical value, indicating whether the instrument has reached thermal gradient stabilization and is within 0.4 degrees C of the set point) size_bin (Size bins for CCN droplet count) time (Time offset from midnight) CCN_alarm_code (CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem) CCN_T_set_TEC1 (AOS CCN set point for temperature at top of column) CCN_T_OPC (AOS CCN temperature of the optical particle counter) CCN_T_inlet (AOS CCN temperature of sample air at entrance to instrument) seconds_after_transition (seconds since last impactor transition) CCN_P_sample (AOS CCN sample pressure) CCN_T_set_TEC3 (AOS CCN set point for temperature at bottom of column) time_bounds (Time cell bounds) CCN_first_stage_monitor_voltage (First stage monitor voltage) N_CCN (AOS number concentration of CCN) CCN_Q_sheath (AOS CCN volumetric flowrate of sheath air) CCN_T_read_TEC3 (AOS CCN (read) temperature at bottom of column) CCN_temperature_gradient (Temperature difference between CCN_t_set_TEC3 and CCN_t_set_TEC1) CCN_T_nafion (AOS CCN Nafion temperature) lon (East longitude)

DQR ID: D170726.7 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-06-13	18:00:00	2017-07-26	23:59:59	Incorrect

Subject:	ENA/CO-ANALYZER/C1 - Reprocess: Valve position fields incorrect
Affected Datastreams:	enaaoscoC1.b1
Description	A bug in the a1- and b1-level AOS CO ingest processes caused the valve position fields to be incorrect. This had the trickle-down effect of flagging the primary fields as incorrect via embedded QC in the b1-level product. Reprocessing is being requested now that this ingest bug has been corrected.
Measurements	valve_position_MFC_2 (Valve position mass flow controller 2) valve_position_MFC_1 (Valve position for mass flow controller 1)

DQR ID: D170724.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2017-07-19	00:27:00	2017-07-20	12:34:00	Suspect

Subject:	ENA/ACSM/C1 - Low inlet pressure
Affected Datastreams:	enaaosacsmC1.a1
Description	The data are questionable because of low inlet pressure. Signal to noise will be low. Data probably cannot be used for PMF.
Measurements	sulfate (Mass concentration of sulfate, ambient aerosol in air.) flow_rate (Flow rate, calculated from calibration and inlet pressure) nitrate (Mass concentration of nitrate, ambient aerosol in air.) vaporizer (Vaporizer) inlet_closed (Inlet closed) total_organics (Mass concentration of total organics, ambient aerosol in air) ammonium (Mass concentration of ammonium, ambient aerosol in air.) chloride (Mass concentration of chloride, ambient aerosol in air.) emission_current (Emission current) inlet_open (Inlet open)