Data Quality Reports for Session: 181230 User: wangm5 Completed: 11/12/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D140221.5MAO/ACSM/S1 - Missing datamaoaosacsmS1.a1Missing
D140501.2MAO/ACSM/S1 - Data acquisition problemmaoaosacsmS1.a1Missing
D140805.2MAO/ACSM/S1 - data collection problemmaoaosacsmS1.a1Missing
D140811.1MAO/ACSM/S1 - Instrument tuning and calibrationmaoaosacsmS1.a1Missing
D140815.1MAO/AOS/S1/M1 - Instrument maintenancemaoaosacsmS1.a1Incorrect
D140822.4MAO/ACSM/S1 - instrument maintenancemaoaosacsmS1.a1Missing
D141009.5MAO/ACSM/S1 - Reprocess: Aerosol chemical speciation monitor errors in datamaoaosacsmS1.a1Incorrect
D141203.3MAO/ALL/S1 - Inlet down/off for cleaning and maintenance.maoaosacsmS1.a1Incorrect
D150223.1MAO/ACSM/S1 - Clogged critical orificemaoaosacsmS1.a1Incorrect
D150414.3MAO/ACSM/S1 - Noisy signalmaoaosacsmS1.a1Suspect
D150429.6MAO/AOS/S1 - Flow rate changemaoaosacsmS1.a1Does not affect quality
D150619.6MAO/ACSM/S1 - Noise in datamaoaosacsmS1.b1, maoaosacsmS1.a1Suspect
D150619.7MAO/ACSM/AETH/CCN/CPC/HTDMA/NEPHELOMETER/PASS/PSAP/SMPS/SP2/UHSAS/S1 - Manifold blower
stopped		maoaosacsmS1.a1Incorrect
D150626.3MAO/ACSM/S1 - Instrument shutdownmaoaosacsmS1.a1Missing
D150702.6MAO/ACSM/S1 - Critical orifice cleaningmaoaosacsmS1.a1Missing
D150824.2MAO/ACSM/S1 - Incorrect and missing datamaoaosacsmS1.a1Incorrect
D150916.2MAO/ACSM/S1 - instrument offline for calibration maoaosacsmS1.a1Missing
D150917.6MAO/ACSM/AETH/CPC/NEPHELOMETER/PSAP/SMPS/UHSAS/S1 Calibration of the NephelometermaoaosacsmS1.a1Incorrect
D150921.2MAO/AOS/M1/S1 - Forest FiremaoaosacsmS1.a1Does not affect quality
D150922.2MAO/ACSM/S1 - Fluctuations in inlet pressuremaoaosacsmS1.a1Incorrect
D151008.2MAO/ACSM/S1 - Instrument noisemaoaosacsmS1.a1Suspect
D151019.5MAO/ACSM/S1 - critical orifice clog and resulting noise issuesmaoaosacsmS1.a1, maoaosacsmS1.b1Incorrect
D151124.2MAO/ACSM/S1 - Data missing from controller failuremaoaosacsmS1.a1Missing


DQRID : D140221.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/17/2014210002/18/20141930Missing
02/19/2014223002/20/20142200Missing
02/11/2014120002/12/20141400Missing
Subject:
MAO/ACSM/S1 - Missing data
DataStreams:maoaosacsmS1.a1
Description:
Data are missing and unrecoverable for the specified periods.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D140501.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/29/2014120005/01/20141600Missing
Subject:
MAO/ACSM/S1 - Data acquisition problem
DataStreams:maoaosacsmS1.a1
Description:
Data acquisition stopped because instrument parameters were incorrectly reset.  Correction 
was made by the mentor and data acquisition was resumed.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D140805.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/31/2014120008/05/20141810Missing
Subject:
MAO/ACSM/S1 - data collection problem
DataStreams:maoaosacsmS1.a1
Description:
No data were collected for this period.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D140811.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/09/2014191708/10/20141619Missing
Subject:
MAO/ACSM/S1 - Instrument tuning and calibration
DataStreams:maoaosacsmS1.a1
Description:
The instrument was off line for calibration and tuning during the period specified.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D140815.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/09/2014160008/15/20141500Incorrect
Subject:
MAO/AOS/S1/M1 - Instrument maintenance
DataStreams:maoaosacsmS1.a1
Description:
Instrument maintenance and cleaning inlets affecting data.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D140822.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/21/2014151908/21/20141806Missing
Subject:
MAO/ACSM/S1 - instrument maintenance
DataStreams:maoaosacsmS1.a1
Description:
Instrument was shut down for reconfiguration of UPS power.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D141009.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/09/2014000010/09/20142359Incorrect
Subject:
MAO/ACSM/S1 - Reprocess: Aerosol chemical speciation monitor errors in data
DataStreams:maoaosacsmS1.a1
Description:
The data will be reprocessed with the manufacturer's software to correct for collection 
efficiencies and instrument response.  The data in the current form is incorrect and should 
not be used.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D141203.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/10/2014132508/10/20142115Incorrect
Subject:
MAO/ALL/S1 - Inlet down/off for cleaning and maintenance.
DataStreams:maoaosacsmS1.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:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150223.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/03/2015230002/08/20151700Incorrect
Subject:
MAO/ACSM/S1 - Clogged critical orifice
DataStreams:maoaosacsmS1.a1
Description:
Inlet pressure was low because of a clogged critical orifice.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150414.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/28/2014235907/20/20140000Suspect
Subject:
MAO/ACSM/S1 - Noisy signal
DataStreams:maoaosacsmS1.a1
Description:
At the end of February transient noise began to appear in the signal. This was not 
immediately apparent and was not detected until July 2015 when the noise suddenly stopped. It is 
apparent that the noise is periodic and probably electrical. Please see  
Document  for the details.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150429.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/17/2014130004/20/20151845Does not affect quality
Subject:
MAO/AOS/S1 - Flow rate change
DataStreams:maoaosacsmS1.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:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150619.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/09/2014000008/04/20151410Suspect
Subject:
MAO/ACSM/S1 - Noise in data
DataStreams:maoaosacsmS1.b1, maoaosacsmS1.a1
Description:
There continue to be issues with noise in the ACSM in the MAOS A container located at the 
site near Manacapuru in Amazonas, Brazil. The noise is intermittent, ongoing, and 
persistent.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
maoaosacsmS1.b1:
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)

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DQRID : D150619.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/16/2015150606/17/20151321Incorrect
Subject:
MAO/ACSM/AETH/CCN/CPC/HTDMA/NEPHELOMETER/PASS/PSAP/SMPS/SP2/UHSAS/S1 - Manifold blower 
stopped
DataStreams:maoaosacsmS1.a1
Description:
Manifold blower pulls air through the inlet to the instrument.  Without the blower, the 
air source is indeterminant.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D150626.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/24/2015180406/26/20151535Missing
Subject:
MAO/ACSM/S1 - Instrument shutdown
DataStreams:maoaosacsmS1.a1
Description:
The data acquisition program locked up on 2015-06-24 and no data were collected.  Program 
was restarted 2015-06-26 15:06:39.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D150702.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/29/2015235707/01/20151650Missing
Subject:
MAO/ACSM/S1 - Critical orifice cleaning
DataStreams:maoaosacsmS1.a1
Description:
Instrument out of service for critical orifice cleaning during the period specified.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • East longitude(lon)
  • time
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • time_offset
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)

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DQRID : D150824.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/01/2015165007/08/20150101Incorrect
Subject:
MAO/ACSM/S1 - Incorrect and missing data
DataStreams:maoaosacsmS1.a1
Description:
Data are incorrect or not available for the specified period.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150916.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/15/2015145409/16/20151359Missing
Subject:
MAO/ACSM/S1 - instrument offline for calibration
DataStreams:maoaosacsmS1.a1
Description:
Data are unavailable during the specified period
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150917.6
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/17/2015193409/17/20152035Incorrect
Subject:
MAO/ACSM/AETH/CPC/NEPHELOMETER/PSAP/SMPS/UHSAS/S1  Calibration of the Nephelometer
DataStreams:maoaosacsmS1.a1
Description:
Inlet line for these instruments was used during Nephelometer calibration compromising the 
data.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150921.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/04/2015000010/08/20152359Does not affect quality
09/13/2015165309/13/20151810Does not affect quality
09/03/2015180009/03/20152359Does not affect quality
Subject:
MAO/AOS/M1/S1 - Forest Fire
DataStreams:maoaosacsmS1.a1
Description:
Smoke from forest burning can be seen on the TSI images rising and then subsequently 
moving over the site during this period.  Many of the AOS instruments observed a sharp spike 
in data values.

October 4-8 multiple fires in the area resulted in hazy conditions during this entire 
period.

Most notable in the following instruments and variables

ACSM - Total Organics
AETH - Black Carbon Concentrations at all wavelengths
CCN100 - Spike in number concentrations occurred a few hours after the smoke plume
CLAP3W - Absorption Coefficient
CPC - Similar to the CCN100, spike in particle concentration occurred a few hours later
CPCF - Particle Concentration
CPCU - Particle Concentration
NEPHELOMETERS - Scattering/Backscattering Coeff
PSAP3W - Absorption Coefficient
SMPS - Concentration and Size Distribution
UHSAS - Size Distribution
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • base_time
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D150922.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/25/2015215008/26/20152353Incorrect
Subject:
MAO/ACSM/S1 - Fluctuations in inlet pressure
DataStreams:maoaosacsmS1.a1
Description:
Fluctuations in inlet pressure possibly as a result of power and/or pump problems. Data 
are suspect for the specified time period.
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D151008.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/18/2015030709/19/20151313Suspect
08/25/2015151208/29/20151803Suspect
Subject:
MAO/ACSM/S1 - Instrument noise
DataStreams:maoaosacsmS1.a1
Description:
Data is noisy and should be considered suspect.  Data is not useful for PMF calculations
Measurements:maoaosacsmS1.a1:
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • inlet_closed
  • flow_rate
  • vaporizer
  • inlet_open
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • emission_current
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)

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DQRID : D151019.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/04/2015215910/13/20152002Incorrect
Subject:
MAO/ACSM/S1 - critical orifice clog and resulting noise issues
DataStreams:maoaosacsmS1.a1, maoaosacsmS1.b1
Description:
The critical orifice clogged at the beginning of the specified period and there was a 
substantial drop in the inlet pressure.  the orifice was cleaned and reinstalled, but there 
was significant instrument noise.  A second cleaning and reinstallation solved the 
problem.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • East longitude(lon)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • vaporizer
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • North latitude(lat)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • time_bounds
  • inlet_closed
  • inlet_open
  • emission_current
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • time
  • flow_rate
  • time_offset
  • base_time
maoaosacsmS1.b1:
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • org_mx
  • qc_ammonium
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • qc_chloride
  • North latitude(lat)
  • base_time
  • qc_org_mx_err
  • qc_org_mx
  • qc_nitrate
  • time
  • East longitude(lon)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • org_mx_err
  • qc_total_organics
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • time_offset
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • amus
  • time_bounds
  • qc_sulfate
  • Altitude above mean sea level(alt)

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DQRID : D151124.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/11/2015165412/01/20152359Missing
Subject:
MAO/ACSM/S1 - Data missing from controller failure
DataStreams:maoaosacsmS1.a1
Description:
The electronics controlling the quadrupole mass spectrometer have failed.
Measurements:maoaosacsmS1.a1:
  • Altitude above mean sea level(alt)
  • Mass concentration of total organics, ambient aerosol in air.(total_organics)
  • Mass concentration of sulfate, ambient aerosol in air.(sulfate)
  • time_bounds
  • East longitude(lon)
  • Mass concentration of chloride, ambient aerosol in air(chloride)
  • inlet_closed
  • vaporizer
  • inlet_open
  • emission_current
  • Mass concentration of ammonium, ambient aerosol in air(ammonium)
  • Mass concentration of nitrate, ambient aerosol in air.(nitrate)
  • North latitude(lat)
  • time
  • flow_rate
  • time_offset
  • base_time

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END OF DATA