DQRs for Session: 184329 User:gallof1Completed: 03-17-2017

Data Quality Reports for Session: 184329 User: gallof1 Completed: 03/17/2017

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D150506.2	ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site Visit	enaaoscoC1.a1	Incorrect
D151029.3	ENA/TRACEGAS/C1 - Calibration turned off	enaaoscoC1.a1	Does not affect quality
D151029.4	ENA/TRACEGAS/C1 - Noise in signal	enaaoscoC1.a1	Suspect
D160202.1	ENA/TRACEGAS/C1 - Reduced calibration from lost instrument control	enaaoscoC1.a1	Does not affect quality
D160630.1	ENA/TRACEGAS/C1 - Data drop out	enaaoscoC1.a1	Incorrect
D160907.11	ENA/TRACEGAS/C1 - Flow meters not operating	enaaoscoC1.a1	Does not affect quality
D161025.6	ENA/AOS/C1 - Instrument mentors working at the site	enaaoscoC1.a1	Suspect
D161026.2	ENA/AOSMET/OZONE/TRACEGAS/C1 - missing data	enaaoscoC1.a1	Missing
D161216.5	ENA/TRACEGAS/C1 - Power failure	enaaoscoC1.a1	Incorrect
D170303.12	ENA/AOS/C1 - Instrument	enaaoscoC1.a1	Does not affect quality

DQRID : D150506.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/22/2015	1700	04/27/2015	1700	Incorrect

Subject:	ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site Visit
DataStreams:	enaaoscoC1.a1
Description:	There was visit of 7 AOS instrument mentors to the ENA AOS during this period of instrument repair, calibration and modification. Instruments were occasionally off, or with no sample flow, or receiving calibration samples, etc. There was no productive sampling of ambient air during this period other than for testing. No data should be used for this period as ambient samples. Note: Two datastream are missing. The CAPS Extinction Monitor and the Greenhouse gas instrument.
Measurements:	enaaoscoC1.a1: gas_pressure ambient_temperature gas_temperature 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) N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co) Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D151029.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/11/2015	0000	07/14/2015	2359	Does not affect quality
07/18/2015	0000	07/21/2015	2359	Does not affect quality

Subject:	ENA/TRACEGAS/C1 - Calibration turned off
DataStreams:	enaaoscoC1.a1
Description:	Calibrations before and after period are very consistent. Data appears to be unaffected.
Measurements:	enaaoscoC1.a1: 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) N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co)

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DQRID : D151029.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/15/2015	2255	07/19/2015	1924	Suspect

Subject:	ENA/TRACEGAS/C1 - Noise in signal
DataStreams:	enaaoscoC1.a1
Description:	Laser lock may have been lost. Signal noisy on H2O and N2O channels
Measurements:	enaaoscoC1.a1: Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) N2O mole fraction of during batch measurement(n2o) Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D160202.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/25/2016	1743	02/02/2016	1931	Does not affect quality

Subject:	ENA/TRACEGAS/C1 - Reduced calibration from lost instrument control
DataStreams:	enaaoscoC1.a1
Description:	Instrument control of calibration Mass Flow Controllers ceased. Unclear why. Lack of calibration does not significantly compromise performance.
Measurements:	enaaoscoC1.a1: 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) N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co)

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DQRID : D160630.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
03/11/2016	1704	03/11/2016	1836	Incorrect

Subject:	ENA/TRACEGAS/C1 - Data drop out
DataStreams:	enaaoscoC1.a1
Description:	Instrument data drop out for an unknown reason. No valid data.
Measurements:	enaaoscoC1.a1: mass_flow_through_MFC_2 gas_pressure ambient_temperature Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) set_point_for_MFC_1 Calculated CO concentration(co) N2O mole fraction of during batch measurement(n2o) mass_flow_through_MFC_1 set_point_for_MFC_2 gas_temperature Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(co_dry) valve_position_MFC_2 valve_position_MFC_1 Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D160907.11

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/25/2016	1141	09/07/2016	1900	Does not affect quality

Subject:	ENA/TRACEGAS/C1 - Flow meters not operating
DataStreams:	enaaoscoC1.a1
Description:	Flow meters were not operating so that there were no standard adds for calibration.
Measurements:	enaaoscoC1.a1: 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) N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co)

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DQRID : D161025.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
09/26/2016	0830	10/01/2016	0100	Suspect

Subject:	ENA/AOS/C1 - Instrument mentors working at the site
DataStreams:	enaaoscoC1.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:	enaaoscoC1.a1: mass_flow_through_MFC_2 gas_pressure ambient_temperature Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) set_point_for_MFC_1 Calculated CO concentration(co) N2O mole fraction of during batch measurement(n2o) mass_flow_through_MFC_1 set_point_for_MFC_2 gas_temperature Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(co_dry) valve_position_MFC_2 valve_position_MFC_1 Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D161026.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
10/25/2016	0050	10/25/2016	0518	Missing

Subject:	ENA/AOSMET/OZONE/TRACEGAS/C1 - missing data
DataStreams:	enaaoscoC1.a1
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.a1: mass_flow_through_MFC_2 Altitude above mean sea level(alt) gas_pressure base_time time_offset ambient_temperature Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) East longitude(lon) set_point_for_MFC_1 N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co) mass_flow_through_MFC_1 set_point_for_MFC_2 time North latitude(lat) gas_temperature Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(co_dry) valve_position_MFC_2 valve_position_MFC_1 Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D161216.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/11/2016	1610	11/12/2016	0937	Incorrect

Subject:	ENA/TRACEGAS/C1 - Power failure
DataStreams:	enaaoscoC1.a1
Description:	Instrument restarted after a power failure. Data not correct. Problem resolved after Operator intervention.
Measurements:	enaaoscoC1.a1: mass_flow_through_MFC_2 gas_pressure ambient_temperature Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) set_point_for_MFC_1 Calculated CO concentration(co) N2O mole fraction of during batch measurement(n2o) mass_flow_through_MFC_1 set_point_for_MFC_2 gas_temperature Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(co_dry) valve_position_MFC_2 valve_position_MFC_1 Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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DQRID : D170303.12

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/20/2016	0000	03/03/2017	0000	Does not affect quality

Subject:	ENA/AOS/C1 - Instrument
DataStreams:	enaaoscoC1.a1
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.a1: mass_flow_through_MFC_2 Altitude above mean sea level(alt) gas_pressure base_time time_offset ambient_temperature Nitrous oxide (N2O) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(n2o_dry) East longitude(lon) set_point_for_MFC_1 N2O mole fraction of during batch measurement(n2o) Calculated CO concentration(co) mass_flow_through_MFC_1 set_point_for_MFC_2 time North latitude(lat) gas_temperature Carbon monoxide (CO) mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction(co_dry) valve_position_MFC_2 valve_position_MFC_1 Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)

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