DQRs for Session: 185089 User:liuj3Completed: 04-19-2017

Data Quality Reports for Session: 185089 User: liuj3 Completed: 04/19/2017

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D160119.12	AWR/HTDMA/M1 - HT-DMA CPC zero counts	awraoshtdmaM1.a1	Incorrect
D160201.1	AWR/HTDMA/M1 - Low instrument flows	awraoshtdmaM1.a1	Incorrect
D160209.2	AWR/HTDMA/M1 - No particle counts	awraoshtdmaM1.a1	Incorrect
D160209.3	AWR/HTDMA/M1 - Intermittent zero counts	awraoshtdmaM1.a1	Incorrect
D160218.4	AWR/HTDMA/M1 - Instrument reliability issues	awraoshtdmaM1.a1	Incorrect
D161130.3	AWR/HTDMA/M1 - Instrument flows not nominal	awraoshtdmaM1.a1	Does not affect quality
D161130.4	AWR/HTDMA/M1 - Instrument connectivity and flow issues	awraoshtdmaM1.a1	Incorrect
D161216.7	AWR/HTDMA/M1 - Initial size selection 200 nm	awraoshtdmaM1.a1	Suspect

DQRID : D160119.12

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/20/2015	1200	01/16/2016	0000	Incorrect

Subject:	AWR/HTDMA/M1 - HT-DMA CPC zero counts
DataStreams:	awraoshtdmaM1.a1
Description:	HT-DMA CPC butanol flooding or contamination. CPC was showing zero counts. Intermittent counts from troubleshooting. No valid data.
Measurements:	awraoshtdmaM1.a1: Total concentration(total_concentration) scan_max_diameter_setting bin_width bin_center num_bins bin dry_diameter_setting dry_rh_setting Concentration of aerosol(aerosol_concentration) scan_min_diameter_setting

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DQRID : D160201.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/29/2016	1200	01/30/2016	0800	Incorrect

Subject:	AWR/HTDMA/M1 - Low instrument flows
DataStreams:	awraoshtdmaM1.a1
Description:	External vacuum was lost, affecting instrument flows. No valid data from the time period.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center bin atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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DQRID : D160209.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/18/2015	0140	11/20/2015	2300	Incorrect

Subject:	AWR/HTDMA/M1 - No particle counts
DataStreams:	awraoshtdmaM1.a1
Description:	No particle counts after the instrument was turned on. Probably no butanol flow to the instrument or possibly a disconnected pump. No meaningful data saved.
Measurements:	awraoshtdmaM1.a1: Total concentration(total_concentration) Concentration of aerosol(aerosol_concentration)

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DQRID : D160209.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/30/2015	1700	12/02/2015	1900	Incorrect

Subject:	AWR/HTDMA/M1 - Intermittent zero counts
DataStreams:	awraoshtdmaM1.a1
Description:	Particle counts intermittently going to zero. Probably blocked butanol flow to the instrument or possibly internal air flow instability.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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DQRID : D160218.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/31/2016	0300	11/08/2016	2100	Incorrect

Subject:	AWR/HTDMA/M1 - Instrument reliability issues
DataStreams:	awraoshtdmaM1.a1
Description:	HT-DMA particle counts intermittently dropping to zero due to internal issues of the HT-DMA MCPC. Instrument periodically sampling cabin air for troubleshooting or switched off while waiting for spare parts to arrive.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center bin atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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DQRID : D161130.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/08/2016	2100	01/02/2017	1416	Does not affect quality

Subject:	AWR/HTDMA/M1 - Instrument flows not nominal
DataStreams:	awraoshtdmaM1.a1
Description:	SEMS part of the HT-DMA has a DMA sheath flow imbalance. Growth factor measurement not affected.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center bin atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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DQRID : D161130.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/20/2016	0200	11/21/2016	1700	Incorrect
11/16/2016	1330	11/17/2016	1600	Incorrect
11/22/2016	1700	11/24/2016	1600	Incorrect

Subject:	AWR/HTDMA/M1 - Instrument connectivity and flow issues
DataStreams:	awraoshtdmaM1.a1
Description:	HSEMS intermittently losing connection with SEMS and not setting the classifier diameter. MCPC not drawing in butanol due to internal pressure imbalance. Data incorrect.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center bin atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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DQRID : D161216.7

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/13/2016	0100	12/13/2016	1445	Suspect

Subject:	AWR/HTDMA/M1 - Initial size selection 200 nm
DataStreams:	awraoshtdmaM1.a1
Description:	Communication lost between the two major parts of the HT-DMA system. Initial size selection stuck at 200 nm.
Measurements:	awraoshtdmaM1.a1: scan_max_diameter_setting Total concentration(total_concentration) scan_time_setting bin_width num_bins dry_diameter_setting dry_rh_setting sample_flow humid_rh bin_center bin atomizer scan_type scan_min_diameter_setting Concentration of aerosol(aerosol_concentration)

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