DQRs for Session: 186025 User:cirinog1Completed: 06-06-2017

Data Quality Reports for Session: 186025 User: cirinog1 Completed: 06/06/2017

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D140530.2	MAO/SMPS/S1 - clogged impactor at the SMPS aerosol sample inlet	maoaossmpsS1.a1	Suspect
D140815.1	MAO/AOS/S1/M1 - Instrument maintenance	maoaossmpsS1.a1	Incorrect
D141203.3	MAO/ALL/S1 - Inlet down/off for cleaning and maintenance.	maoaossmpsS1.a1	Incorrect
D150429.6	MAO/AOS/S1 - Flow rate change	maoaossmpsS1.a1	Does not affect quality
D151203.4	MAO/SMPS/S1 - Reprocess: SMPS data	maoaossmpsS1.a1	Does not affect quality

DQRID : D140530.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/07/2014	1430	05/13/2014	2043	Suspect

Subject:	MAO/SMPS/S1 - clogged impactor at the SMPS aerosol sample inlet
DataStreams:	maoaossmpsS1.a1
Description:	The clogging of the impactor leads to a decrease in the aerosol sample flow rate of the SMPS, which is nominally 1 lpm. This decrease in the SMPS sample flow rate results in an underestimation of the ambient size distribution and integrated number concentration.
Measurements:	maoaossmpsS1.a1: aerosol_flow CPC_inlet_flow Total concentration(total_concentration) Number size distribution (dN/dlogDp)(number_size_distribution) CPC_sample_flow

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DQRID : D140815.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/09/2014	1600	08/15/2014	1500	Incorrect

Subject:	MAO/AOS/S1/M1 - Instrument maintenance
DataStreams:	maoaossmpsS1.a1
Description:	Instrument maintenance and cleaning inlets affecting data.
Measurements:	maoaossmpsS1.a1: gas_viscosity median low_voltage geometric_mean lower_size Sample temperature(sample_temperature) high_voltage mean sheath_flow aerosol_flow d50 CPC_inlet_flow mean_free_path Number size distribution (dN/dlogDp)(number_size_distribution) diameter_midpoint sample_pressure geometric_mean_std status_flag mode CPC_sample_flow

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DQRID : D141203.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/10/2014	1325	08/10/2014	2115	Incorrect

Subject:	MAO/ALL/S1 - Inlet down/off for cleaning and maintenance.
DataStreams:	maoaossmpsS1.a1
Description:	Inlet stack of MAOS A lowered. All instruments on internal cabin air. No atmospheric validity on HTDMA, PSAP, f(RH) dry neph, wet neph, aethalometer, PASS3, SP2, ACSM, CCN-200, Impactor, CPC, UCPC, SMPS.
Measurements:	maoaossmpsS1.a1: gas_viscosity median low_voltage geometric_mean lower_size Sample temperature(sample_temperature) high_voltage mean sheath_flow aerosol_flow d50 CPC_inlet_flow Total concentration(total_concentration) mean_free_path Number size distribution (dN/dlogDp)(number_size_distribution) diameter_midpoint geometric_mean_std sample_pressure status_flag mode CPC_sample_flow

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DQRID : D150429.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/17/2014	1300	04/20/2015	1845	Does not affect quality

Subject:	MAO/AOS/S1 - Flow rate change
DataStreams:	maoaossmpsS1.a1
Description:	At begining of period, the bypass blower on MAOS A failed. This was replaced by the instrument operator, but operator was unable to reprogram the PID flow controller. The blower ran approximately 50% faster than designed flow rate. It is unlikely this significantly affected the flow dynamics or transmission efficiencies in the MAOS A sampling stack. The data is colored transparent, but the DQR is filed to alert the user. No specific degradation of signals were noted at this time.
Measurements:	maoaossmpsS1.a1: gas_viscosity median low_voltage geometric_mean lower_size Sample temperature(sample_temperature) high_voltage mean sheath_flow aerosol_flow d50 CPC_inlet_flow Total concentration(total_concentration) mean_free_path Number size distribution (dN/dlogDp)(number_size_distribution) diameter_midpoint geometric_mean_std sample_pressure status_flag mode CPC_sample_flow

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DQRID : D151203.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/29/2014	0000	12/28/2015	0000	Does not affect quality

Subject:	MAO/SMPS/S1 - Reprocess: SMPS data
DataStreams:	maoaossmpsS1.a1
Description:	No affect on data quality
Measurements:	maoaossmpsS1.a1: status_flag

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