Data Quality Reports for Session: 179379 User: zhangz1 Completed: 09/02/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D100915.1GRW/AOS/M1 - Annual maintenancegrwnoaaaosM1.b1, grwnoaaaosavgM1.b1Incorrect
D101020.2GRW/AOS/M1 - Data processing problemgrwnoaaaosM1.b1, grwnoaaaosavgM1.b1Does not affect quality
D110110.1GRW/AOS/M1 - Discontinue fRH hygroscopic growth measurementsgrwnoaaaosM1.b1Missing
D120820.1GRW/AOS/M1 - CPC undercountinggrwnoaaaosM1.b1, grwnoaaaosavgM1.b1Incorrect
D150217.13GRW/AOD/M1 - Reprocess: airmass field is incorrectly set to -1 when failing QC.grwmfrsraod1michM1.c1Does not affect quality


DQRID : D100915.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/20/2010081005/26/20101100Incorrect
Subject:
GRW/AOS/M1 - Annual maintenance
DataStreams:grwnoaaaosM1.b1, grwnoaaaosavgM1.b1
Description:
Instruments were down for annual maintenance.
Measurements:grwnoaaaosavgM1.b1:
  • Bbs_R_Dry_1um_PSAP1W_1_N
  • Altitude above mean sea level(alt)
  • RH_NephVol_Dry
  • Bbs_B_Dry_10um_PSAP1W_1_N
  • Bbs_R_Dry_10um_PSAP1W_1_N
  • Ba_G_Dry_1um_PSAP1W_1_std
  • Aerosol total light scattering coefficient, reference nephelometer red channel,
    10 um particle diameter(Bs_R_Dry_10um_Neph3W_1)
  • Condensation Nuclei Concentration Number(N_CPC_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer blue chann(Bbs_B_Dry_1um_Neph3W_1)
  • Back-scattering coefficient, blue wavelength, low RH, 10 um size cut(Bbs_B_Dry_10um_Neph3W_1)
  • N_OPC_1_N
  • Bs_R_Dry_1um_PSAP1W_1_N
  • AOS number concentration of CCN(N_CCN)
  • RH_NephVol_Dry_std
  • North latitude(lat)
  • Bs_B_Dry_10um_PSAP1W_1_N
  • Aerosol total light scattering coefficient, Ref. Humidograph nephelometer red
    channel, 1 um particle diameter(Bs_R_Dry_1um_Neph3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer red channel, 1 um particle diameter(Bbs_R_Dry_1um_Neph3W_1)
  • Bbs_G_Dry_1um_PSAP1W_1_N
  • Ba_G_Dry_10um_PSAP1W_1_std
  • Bbs_R_1um_PSAP1W_1_std
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • Bs_B_1um_PSAP1W_1_std
  • Absorption coefficient, green wavelength, low RH, 1 um size cut(Ba_G_Dry_1um_PSAP1W_1)
  • Bs_B_Dry_1um_PSAP1W_1_N
  • Bs_R_Dry_10um_PSAP1W_1_std
  • Bs_G_1um_PSAP1W_1_std
  • RH_NephVol_Dry_N
  • Bs_G_Dry_10um_PSAP1W_1_N
  • Bbs_R_Dry_10um_PSAP1W_1_std
  • Bs_R_1um_PSAP1W_1_std
  • Bs_G_Dry_10um_PSAP1W_1_std
  • Bbs_G_Dry_10um_PSAP1W_1_N
  • Bbs_G_Dry_10um_PSAP1W_1_std
  • Aerosol total light scattering coefficient, reference nephelometer blue channel,
    10 um particle diam(Bs_B_Dry_10um_Neph3W_1)
  • Bs_R_Dry_10um_PSAP1W_1_N
  • Bbs_B_Dry_10um_PSAP1W_1_std
  • Total scattering coefficient, green wavelength, low RH, 10 um size cut(Bs_G_Dry_10um_Neph3W_1)
  • flags_CMDL
  • Back-scattering coefficient, red wavelength, low RH, 10 um size cut(Bbs_R_Dry_10um_Neph3W_1)
  • Ba_G_Dry_1um_PSAP1W_1_N
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer green channel, 10(Bbs_G_Dry_10um_Neph3W_1)
  • Total scattering coefficient, blue wavelength, low RH, 1 um size cut(Bs_B_Dry_1um_Neph3W_1)
  • East longitude(lon)
  • N_OPC_1_std
  • N_CPC_1_N
  • time_offset
  • time
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer green chan(Bbs_G_Dry_1um_Neph3W_1)
  • Bs_G_Dry_1um_PSAP1W_1_N
  • Aerosol total light scattering coefficient, Ref. Humidograph nephelometer green
    channel, 1 um particle diameter(Bs_G_Dry_1um_Neph3W_1)
  • Bbs_G_1um_PSAP1W_1_std
  • Bbs_B_Dry_1um_PSAP1W_1_N
  • N_CPC_1_std
  • Ba_G_Dry_10um_PSAP1W_1_N
  • base_time
  • Bbs_B_1um_PSAP1W_1_std
  • Bs_B_Dry_10um_PSAP1W_1_std
grwnoaaaosM1.b1:
  • P_Neph_Dry
  • Wind direction, relative to true North(WindDirection)
  • Aerosol total light scattering coefficient, Humidograph nephelometer green
    channel, 10 um particle d(Bs_G_Wet_10um_Neph3W_2)
  • Back-scattering coefficient, blue wavelength, low RH, 10 um size cut(Bbs_B_Dry_10um_Neph3W_1)
  • East longitude(lon)
  • RH_NephInlet_Wet
  • Total scattering coefficient, green wavelength, low RH, 10 um size cut(Bs_G_Dry_10um_Neph3W_1)
  • Absorption coefficient red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1)
  • Total scattering coefficient, blue wavelength, low RH, 1 um size cut(Bs_B_Dry_1um_Neph3W_1)
  • Ambient air relative humidity(RH_Ambient)
  • Wind speed(WindSpeed)
  • Aerosol total light scattering coefficient, reference nephelometer blue channel,
    10 um particle diam(Bs_B_Dry_10um_Neph3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer green chan(Bbs_G_Dry_1um_Neph3W_1)
  • Ambient air temperature(T_Ambient)
  • flags_CMDL
  • T_NephVol_Dry
  • base_time
  • Aerosol total light scattering coefficient, reference nephelometer red channel,
    10 um particle diameter(Bs_R_Dry_10um_Neph3W_1)
  • RH_NephInlet_Dry
  • Aerosol total light scattering coefficient, Ref. Humidograph nephelometer green
    channel, 1 um particle diameter(Bs_G_Dry_1um_Neph3W_1)
  • Aerosol total light scattering coefficient, reference nephelometer red channel,
    10 um particle diameter(Bs_R_Wet_10um_Neph3W_2)
  • T_MainInlet
  • Aerosol total light scattering coefficient, Ref. Humidograph nephelometer red
    channel, 1 um particle diameter(Bs_R_Dry_1um_Neph3W_1)
  • RH_NephVol_Wet
  • T_NephInlet_Wet
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer green channel,(Bbs_G_Wet_10um_Neph3W_2)
  • RH_preHG
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer green channel,(Bbs_G_Wet_1um_Neph3W_2)
  • AOS number concentration of CCN(N_CCN)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer red channel, 1(Bbs_R_Wet_1um_Neph3W_2)
  • time
  • T_postHG
  • P_Neph_Wet
  • T_preHG
  • Absorption coefficient green, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer blue channel, 1(Bbs_B_Wet_10um_Neph3W_2)
  • North latitude(lat)
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer green channel, 10(Bbs_G_Dry_10um_Neph3W_1)
  • Back-scattering coefficient, red wavelength, low RH, 10 um size cut(Bbs_R_Dry_10um_Neph3W_1)
  • T_NephVol_Wet
  • Absorption coefficient blue, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer red channel, 1 um particle diameter(Bbs_R_Dry_1um_Neph3W_1)
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer red channel, 10 um particle diameter(Bbs_R_Wet_10um_Neph3W_2)
  • Altitude above mean sea level(alt)
  • RH_MainInlet
  • Aerosol total light scattering coefficient, reference nephelometer green
    channel, 1 um particle diameter(Bs_G_Wet_1um_Neph3W_2)
  • Aerosol total light scattering coefficient, Humidograph nephelometer red
    channel, 1 um particle diam(Bs_R_Wet_1um_Neph3W_2)
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • RH_postHG
  • Aerosol total light scattering coefficient, Humidograph nephelometer blue
    channel, 10 um particle di(Bs_B_Wet_10um_Neph3W_2)
  • RH_NephVol_Dry
  • Absorption coefficient, green wavelength, low RH, 1 um size cut(Ba_G_Dry_1um_PSAP1W_1)
  • time_offset
  • Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
    nephelometer blue chann(Bbs_B_Dry_1um_Neph3W_1)
  • Condensation Nuclei Concentration Number(N_CPC_1)
  • Ambient pressure(P_Ambient)
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer blue channel, 1 um particle diameter(Bbs_B_Wet_1um_Neph3W_2)
  • Absorption coefficient, green wavelength, 3 wavelength PSAP, low RH, 10 um size
    cut(Ba_G_Dry_10um_PSAP3W_1)
  • Aerosol total light scattering coefficient, Humidograph nephelometer blue
    channel, 1 um particle dia(Bs_B_Wet_1um_Neph3W_2)
  • T_NephInlet_Dry

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DQRID : D101020.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/15/2009000012/31/20090000Does not affect quality
Subject:
GRW/AOS/M1 - Data processing problem
DataStreams:grwnoaaaosM1.b1, grwnoaaaosavgM1.b1
Description:
The AOS data was reprocessed for the AMF, SGP and NSA sites. There was an error in the 
processing of the corrections for the PSAP absorption signal such that a low pass filter was 
implemented for the scattering data used in these corrections.The difference between the 
corrected and previous data is < 0.05 Mm-1 (below the instrument detection limit) and 
should not have a significant effect on the previous data. Data will be reprocessed at a 
later time when more significant changes to the data processing are implemented.
Measurements:grwnoaaaosavgM1.b1:
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • Absorption coefficient, green wavelength, low RH, 1 um size cut(Ba_G_Dry_1um_PSAP1W_1)
grwnoaaaosM1.b1:
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1)
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • Absorption coefficient blue, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1)
  • Absorption coefficient, green wavelength, 3 wavelength PSAP, low RH, 10 um size
    cut(Ba_G_Dry_10um_PSAP3W_1)
  • Absorption coefficient green, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1)
  • Absorption coefficient, green wavelength, low RH, 1 um size cut(Ba_G_Dry_1um_PSAP1W_1)
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1)
  • Absorption coefficient red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1)

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DQRID : D110110.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/19/2010065712/31/20101200Missing
Subject:
GRW/AOS/M1 - Discontinue fRH hygroscopic growth measurements
DataStreams:grwnoaaaosM1.b1
Description:
The chopper motor in the reference or dry nephelometer started to fail, which meant that 
it wasn't rotating at the correct rpm. The instrument gave erroneous data. 

The wet neph was swapped for the dry neph and the humidified nephelometer measurements 
were shut down. The neph motors were replaced at the end of the deployment so that both 
nephs will be operating for GVAX.
Measurements:grwnoaaaosM1.b1:
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer green channel,(Bbs_G_Wet_1um_Neph3W_2)
  • RH_preHG
  • Aerosol total light scattering coefficient, Humidograph nephelometer green
    channel, 10 um particle d(Bs_G_Wet_10um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer red channel, 1(Bbs_R_Wet_1um_Neph3W_2)
  • Aerosol total light scattering coefficient, reference nephelometer red channel,
    10 um particle diameter(Bs_R_Wet_10um_Neph3W_2)
  • Aerosol total light scattering coefficient, reference nephelometer green
    channel, 1 um particle diameter(Bs_G_Wet_1um_Neph3W_2)
  • Aerosol total light scattering coefficient, Humidograph nephelometer red
    channel, 1 um particle diam(Bs_R_Wet_1um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer blue channel, 1 um particle diameter(Bbs_B_Wet_1um_Neph3W_2)
  • T_postHG
  • RH_postHG
  • P_Neph_Wet
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer red channel, 10 um particle diameter(Bbs_R_Wet_10um_Neph3W_2)
  • Aerosol total light scattering coefficient, Humidograph nephelometer blue
    channel, 10 um particle di(Bs_B_Wet_10um_Neph3W_2)
  • RH_NephVol_Wet
  • T_preHG
  • RH_NephInlet_Wet
  • Aerosol total light scattering coefficient, Humidograph nephelometer blue
    channel, 1 um particle dia(Bs_B_Wet_1um_Neph3W_2)
  • T_NephVol_Wet
  • T_NephInlet_Wet
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer green channel,(Bbs_G_Wet_10um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer blue channel, 1(Bbs_B_Wet_10um_Neph3W_2)

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DQRID : D120820.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/27/2009000009/08/20090825Incorrect
Subject:
GRW/AOS/M1 - CPC undercounting
DataStreams:grwnoaaaosM1.b1, grwnoaaaosavgM1.b1
Description:
The CPC was undercounting by about 10-20 percent relative to the CCN. After cleaning the 
CPC and replacing the butanol, the signal increased to above that of the CCN.

Increase CPC signal so that it equals the CCN signal at the maximum SS value. The 
corrected signal will represent relative and not an absolute particle concentration.
Measurements:grwnoaaaosavgM1.b1:
  • Condensation Nuclei Concentration Number(N_CPC_1)
grwnoaaaosM1.b1:
  • Condensation Nuclei Concentration Number(N_CPC_1)

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DQRID : D150217.13
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/05/2009000001/03/20112359Does not affect quality
Subject:
GRW/AOD/M1 - Reprocess: airmass field is incorrectly set to -1 when failing QC.
DataStreams:grwmfrsraod1michM1.c1
Description:
The qc_airmass field indicates that values in the airmass field are set to -9999, the 
missing_value, when qc_airmass = 1 (QC bit 1 has tripped). In reality, the values are set to 
-1 and will not be filtered out by programs that automatically remove missing values. 
This will be fixed in a future reprocessing task.
Measurements:grwmfrsraod1michM1.c1:
  • airmass

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END OF DATA