DQRID : D061206.1
Start DateStart TimeEnd DateEnd Time
03/22/2006104503/23/20061000
more
Subject:
NIM/AOS/M1 - Bypass valve failure
DataStreams:nimaosccnM1.a1, nimaosauxM1.a1, nimaosM1.a1
Description:
The flow bypass valve failed which routed flow through the bypass line rather than through 
the instruments. The bypass line was capped the next day. The valve was replaced on 
4/19. Data is considered unusable during the time between the valve failure on 3/22 and the 
capping of the flow line on 3/23.
Suggestions: 
Measurements:nimaosM1.a1:
  • Aerosol backwards-hemispheric light scattering coefficient, blue channel, 1 um
    size cut, reference three wavelength nephelometer(Bbs_B_Dry_1um_Neph3W_1)
  • Ambient air relative humidity(RH_Ambient)
  • Aerosol total light scattering coefficient, red channel, 10 um particle size(Bs_R_Dry_10um_Neph3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, red channel, 10um(Bbs_R_Dry_10um_Neph3W_1)
  • Aerosol total light scattering coefficient, reference nephelometer green
    channel, 10 um particle diameter(Bs_G_Dry_10um_Neph3W_1)
  • Relative humidity of humidograph preheater(RH_preHG)
  • Pressure inside reference nephelometer(P_Neph_Dry)
  • Absorption coefficient, green wavelength, 3 wavelength PSAP, low RH, 10 um size
    cut(Ba_G_Dry_10um_PSAP3W_1)
  • Temperature inside of wet nephelometer inlet(T_NephVol_Wet)
  • Absorption coefficient green, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1)
  • Back-scattering coefficient, red wavelength, high RH, 1 um size cut(Bbs_R_Wet_1um_Neph3W_2)
  • Absorption coefficient, blue wavelength, 3 wavelength PSAP, low RH, 1 um size
    cut(Ba_B_Dry_1um_PSAP3W_1)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer green channel, 10 um particle diameter(Bbs_G_Wet_10um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, blue channel, 10um(Bbs_B_Dry_10um_Neph3W_1)
  • Aerosol total light scattering coefficient, Humidograph nephelometer green
    channel, 10 um particle diameter(Bs_G_Wet_10um_Neph3W_2)
  • Pressure of ambient air(P_Ambient)
  • Aerosol total light scattering coefficient, blue channel, 10 um size cut,
    reference three wavelength nephelometer(Bs_B_Dry_10um_Neph3W_1)
  • Absorption coefficient, blue wavelength, 3 wavelength PSAP, low RH, 10 um size
    cut(Ba_B_Dry_10um_PSAP3W_1)
  • Temperature at inlet(T_MainInlet)
  • Aerosol total light scattering coefficient, Humidograph nephelometer red
    channel, 10 um particle diameter(Bs_R_Wet_10um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, blue channel, 10 um
    size cut, wet three wavelength nephelometer(Bbs_B_Wet_10um_Neph3W_2)
  • Relative humidity of humidograph controller(RH_postHG)
  • Temperature at reference nephelometer inlet(T_NephInlet_Dry)
  • Relative humidity, inside Humidograph nephelometer(RH_NephVol_Wet)
  • Relative humidity, reference nephelometer inlet(RH_NephInlet_Dry)
  • AOS system status(flags_NOAA)
  • Wind speed(WindSpeed)
  • Wind Direction, relative to true North(WindDirection)
  • Condensation nuclei concentration number(N_CPC_1)
  • Temperature inside reference nephelometer(T_NephVol_Dry)
  • Ambient air temperature(T_Ambient)
  • Aerosol backwards-hemispheric light scattering coefficient, green channel, 1 um
    size cut, reference three wavelength nephelometer(Bbs_G_Dry_1um_Neph3W_1)
  • Relative humidity at inlet(RH_MainInlet)
  • Aerosol backwards-hemispheric light scattering coefficient, Humidograph
    nephelometer blue channel, 1 um particle diameter(Bbs_B_Wet_1um_Neph3W_2)
  • Pressure inside humidified nephelometer(P_Neph_Wet)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 1 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)
  • Aerosol backwards-hemispheric light scattering coefficient, reference
    nephelometer red channel, 1 um particle diameter(Bbs_R_Dry_1um_Neph3W_1)
  • Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1)
  • Aerosol total light scattering coefficient, Humidograph nephelometer green
    channel, 1 um particle diameter(Bs_G_Wet_1um_Neph3W_2)
  • Particle Concentration Number from summation of Optical Particle Counter size
    bins(N_OPC_1)
  • Aerosol total light scattering coefficient, reference nephelometer red channel,
    1 um particle diameter(Bs_R_Dry_1um_Neph3W_1)
  • Aerosol total light scattering coefficient, humidograph nephelometer blue
    channel, 1 um particle diameter(Bs_B_Wet_1um_Neph3W_2)
  • Aerosol total light scattering coefficient, blue channel, 10 um size cut, wet
    three wavelength nephelometer(Bs_B_Wet_10um_Neph3W_2)
  • Aerosol backwards-hemispheric light scattering coefficient, humidograph
    nephelometer red channel, 10 um particle diameter(Bbs_R_Wet_10um_Neph3W_2)
  • Aerosol total light scattering coefficient, ref. humidograph nephelometer green
    channel, 1 um particle diameter(Bs_G_Dry_1um_Neph3W_1)
  • Temperature at wet nephelometer inlet(T_NephInlet_Wet)
  • Aerosol total light scattering coefficient, Humidograph nephelometer red
    channel, 1 um particle diameter(Bs_R_Wet_1um_Neph3W_2)
  • Relative humidity inside reference nephelometer inlet(RH_NephVol_Dry)
  • Back-scattering coefficient, green wavelength, low RH, 10 um size cut(Bbs_G_Dry_10um_Neph3W_1)
  • Back-scattering coefficient, green wavelength, high RH, 1 um size cut(Bbs_G_Wet_1um_Neph3W_2)
  • Temperature of humidograph preheater(T_preHG)
  • Temperature of humidograph controller(T_postHG)
  • Aerosol total light scattering coefficient, Ref. Humidograph nephelometer blue
    channel, 1 um particle diameter(Bs_B_Dry_1um_Neph3W_1)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1)
  • Relative humidity, Humidograph nephelometer inlet(RH_NephInlet_Wet)
more
nimaosauxM1.a1:
  • AOS PSAP3W transmittance, blue channel(TrB)
  • AOS PSAP3W transmittance, green channel(TrG)
  • AOS PSAP3W transmittance, red channel(TrR)
more
nimaosccnM1.a1:
  • AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
  • AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
  • AOS CCN logical value, indicating whether the instrument has reached thermal
    gradient stabilization and is within 0.4 degrees C of the set point(CCN_temp_unstable_flag)
  • AOS CCN sample pressure(CCN_P_sample)
  • AOS CCN temperature of sample air entering the column(CCN_T_sample)
  • AOS CCN temperature of the nafion humidifier(CCN_T_nafion)
  • AOS CCN temperature at top of column(CCN_T_TEC1)
  • AOS CCN temperature at middle of column(CCN_T_TEC2)
  • AOS CCN temperature at bottom of column(CCN_T_TEC3)
  • AOS CCN sample supersaturation calculated by model)(CCN_ss_calc)
  • Size of upper limit of each CCN bin(CCN_UpperSizeLimit)
  • AOS CCN standard deviation of difference (CCN_T_TEM1 - CCN_T_TEC3)(CCN_dT_TEC3_TEC1_StdDev)
  • AOS CCN temperature of the optical particle counter(CCN_T_OPC)
  • Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • Cloud condensation nuclei number density(N_CCN)
  • AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
  • AOS CCN OPC laser current(CCN_laser_current)
  • AOS CCN number concentration by bin(N_CCN_dN)
  • AOS CCN temperature of sample air at entrance to instrument(CCN_T_inlet)
more

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