Data Quality Reports for Session: 184663 User: rpbambh Completed: 03/28/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D160224.2SGP/PGS/C1 - Environmental, InstrumentsgppgsC1.a1Missing
D160323.5SGP/PGS/C1 - Reprocessed and Corrected:Incorrect data typesgppgsC1.a1Does not affect quality
D160608.7SGP/PGS/C1 - System maintenance periodssgppgsC1.a1Incorrect
D161026.3SGP/PGS/C1 - Tower pump failure for 60m sample heightsgppgsC1.a1Suspect
D170310.16SGP/Central Facility - Power OutagesgppgsC1.a1Does not affect quality


DQRID : D160224.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/28/2015020012/31/20151623Missing
Subject:
SGP/PGS/C1 - Environmental, Instrument
DataStreams:sgppgsC1.a1
Description:
Site power loss
Measurements:sgppgsC1.a1:
  • species
  • Measured CH4 mole fraction(ch4)
  • base_time
  • North latitude(lat)
  • time
  • cavity_temperature
  • CO2 mole fraction with water correction(co2_dry)
  • analyzer_temperature
  • East longitude(lon)
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Carbon dioxide volume mixing ratio(co2)
  • etalon_temperature
  • solenoid_valve
  • Altitude above mean sea level(alt)
  • time_offset
  • cavity_pressure
  • warm_box_temperature
  • outlet_valve
  • Methane dry volume mixing ratio(ch4_dry)
  • mp_valve_position

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DQRID : D160323.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/02/2015170004/12/20161700Does not affect quality
Subject:
SGP/PGS/C1 - Reprocessed and Corrected:Incorrect data type
DataStreams:sgppgsC1.a1
Description:
DATA REPROCESSED and CORRECTED: 
The data was reprocessed to read MP_VALVE_POSITION in the raw data as a float instead of 
an integer. 

ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-07

REPROCESS IDENTIFICATION NUMBER: RID 1454

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--- ORIGINAL DQR DESCRIPTION ---
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Data will be reprocessed to read MP_VALVE_POSITION in the raw data as a float instead of 
an integer
Measurements:sgppgsC1.a1:
  • mp_valve_position

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DQRID : D160608.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/05/2016150004/08/20161000Incorrect
04/12/2016140204/12/20162000Incorrect
Subject:
SGP/PGS/C1 - System maintenance periods
DataStreams:sgppgsC1.a1
Description:
Data from this period was used for system testing purposes only. This data should not be 
used for science. Nafion box replacement and testing.
Measurements:sgppgsC1.a1:
  • species
  • Measured CH4 mole fraction(ch4)
  • cavity_temperature
  • CO2 mole fraction with water correction(co2_dry)
  • analyzer_temperature
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Carbon dioxide volume mixing ratio(co2)
  • etalon_temperature
  • solenoid_valve
  • cavity_pressure
  • warm_box_temperature
  • outlet_valve
  • Methane dry volume mixing ratio(ch4_dry)
  • mp_valve_position

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DQRID : D161026.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/09/2016094310/13/20162100Suspect
Subject:
SGP/PGS/C1 - Tower pump failure for 60m sample height
DataStreams:sgppgsC1.a1
Description:
The tower pump for 60 m sample failed during this period. The system was not operating at 
nominal state for all 60 m sample data during this period (data for MP_VALVE_POSITION = 4)
Measurements:sgppgsC1.a1:
  • Measured CH4 mole fraction(ch4)
  • CO2 mole fraction with water correction(co2_dry)
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Methane dry volume mixing ratio(ch4_dry)
  • Carbon dioxide volume mixing ratio(co2)

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DQRID : D170310.16
Start DateStart TimeEnd DateEnd Time Data Quality Metric
03/05/2017002303/09/20171430Does not affect quality
Subject:
SGP/Central Facility - Power Outage
DataStreams:sgppgsC1.a1
Description:
Automated scripts show that these instruments were affected by a power outage at the 
central facility resulting in missing data.  Most of the instruments came back online on March 
6th but some took longer.
Measurements:sgppgsC1.a1:
  • species
  • Measured CH4 mole fraction(ch4)
  • North latitude(lat)
  • base_time
  • time
  • cavity_temperature
  • CO2 mole fraction with water correction(co2_dry)
  • analyzer_temperature
  • East longitude(lon)
  • Water vapor mixing ratio calculated with nominal sensitivity correction(h2o)
  • Carbon dioxide volume mixing ratio(co2)
  • etalon_temperature
  • solenoid_valve
  • Altitude above mean sea level(alt)
  • time_offset
  • cavity_pressure
  • warm_box_temperature
  • outlet_valve
  • Methane dry volume mixing ratio(ch4_dry)
  • mp_valve_position

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END OF DATA