SGP/CCN/C1 - Problem with flow control regulation

A problem with flow control regulation. The instrument was returned to manufacture DMT for 
repair. The column was found cracked and replaced. Data scans from 5/6/2016 15:36 to 
5/10/2016 16:00 use the default scan mode that steps from 0.2 to 1.0 %ss. After this time, 
the pyramid stepping scheme is implemented.

• reported_temperature_gradient
• T_inlet
• dT_OPC
• Q_sample
• eta_target
• AOS CCN droplet count by bin size(N_CCN_dN)
• T_nafion
• temperature_std
• proportional_valve_voltage
• T_read_TEC1
• T_read_TEC2
• T_read_TEC3
• T_set_gradient
• supersaturation_calculated
• T_sample
• AOS number concentration of CCN(N_CCN)
• first_stage_monitor_voltage
• eta_lookup_table
• Q_sheath
• dilution_correction_factor
• overflow
• supersaturation_set_point
• T_read_gradient
• T_OPC
• size_bin_bounds
• dT_target_estimated
• seconds_after_transition
• eta
• size_bin
• T_set_TEC3
• T_set_TEC2
• T_set_TEC1
• supersaturation_calculated_target
• laser_current
• P_sample
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• temp_unstable

• CCN_Q_sheath
• CCN_temp_unstable_flag
• size_bin
• CCN_ss_set
• CCN_P_sample
• CCN_supersaturation_set_point
• CCN_T_read_TEC1
• CCN_Q_sample
• CCN_T_read_TEC2
• CCN_T_read_TEC3
• CCN_t_read_TEC3
• CCN_temp_unstable
• CCN_t_read_TEC1
• CCN_t_read_TEC2
• CCN_T_sample
• CCN_T_nafion
• CCN_laser_current
• CCN_T_OPC
• CCN_proportional_valve_voltage
• AOS CCN droplet count by bin size(N_CCN_dN)
• CCN_T_inlet
• size_bin_bounds
• CCN_super_saturation_calculated
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• CCN_temperature_gradient
• AOS number concentration of CCN(N_CCN)
• CCN_T_set_TEC2
• CCN_T_set_TEC1
• CCN_T_set_TEC3
• CCN_first_stage_monitor_voltage
• CCN_temperature_std

SGP/AOS/C1 - Flow control not working

PID flow control was not working. Back pressure developed and flooded one of the 
nephelometers. Nephelometer cleaned and back online.

• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• T_NephVol_Dry
• base_time
• f2_flags
• RH_NephInlet_Dry
• RH_Neph_Vol_Dry
• time_offset
• Altitude above mean sea level(alt)
• Total scattering coefficient, blue wavelength, low RH, 1 um size cut(Bs_B_Dry_1um_Neph3W_1)
• P_Neph_Dry
• Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
  nephelometer green chan(Bbs_G_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)
• RH_NephVol_Dry
• North latitude(lat)
• Aerosol backwards-hemispheric light scattering coefficient, reference
  nephelometer green channel, 10(Bbs_G_Dry_10um_Neph3W_1)
• T_Neph_Vol_Dry
• T_NephInlet_Dry
• Total scattering coefficient, green wavelength, low RH, 10 um size cut(Bs_G_Dry_10um_Neph3W_1)
• Back-scattering coefficient, blue wavelength, low RH, 10 um size cut(Bbs_B_Dry_10um_Neph3W_1)
• Back-scattering coefficient, red wavelength, low RH, 10 um size cut(Bbs_R_Dry_10um_Neph3W_1)
• Aerosol total light scattering coefficient, Ref. Humidograph nephelometer green
  channel, 1 um particle diameter(Bs_G_Dry_1um_Neph3W_1)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• RH_Neph_Inlet_Dry
• impactor_setting
• Aerosol total light scattering coefficient, reference nephelometer red channel,
  10 um particle diameter(Bs_R_Dry_10um_Neph3W_1)
• Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph
  nephelometer blue chann(Bbs_B_Dry_1um_Neph3W_1)
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• time_bounds
• time
• Aerosol total light scattering coefficient, reference nephelometer blue channel,
  10 um particle diam(Bs_B_Dry_10um_Neph3W_1)
• Aerosol total light scattering coefficient, Ref. Humidograph nephelometer red
  channel, 1 um particle diameter(Bs_R_Dry_1um_Neph3W_1)
• East longitude(lon)
• T_Neph_Inlet_Dry
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)

• qc_T_Neph_Inlet_Dry
• seconds_after_transition
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W)
• qc_T_Neph_Dry
• qc_Bs_G_Dry_Neph3W
• T_Neph_Inlet_Dry
• Aerosol total light scattering coefficient, nominal green wavelength at dry or
  reference RH(Bs_G_Dry_Neph3W_1)
• impactor_setting
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W_1)
• Altitude above mean sea level(alt)
• P_Neph_Dry
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W)
• qc_RH_Neph_Inlet_Dry
• Aerosol total light scattering coefficient, nominal blue wavelength at dry or
  reference RH(Bs_B_Dry_Neph3W_1)
• RH_Neph_Inlet_Dry
• qc_impactor_state
• Impactor particle size cut(impactor_state)
• density_correction_factor
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W)
• time_bounds
• qc_P_Neph_Dry
• East longitude(lon)
• base_time
• time_offset
• T_Neph_Dry
• qc_Bs_R_Dry_Neph3W
• qc_Bbs_B_Dry_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at dry or reference RH(Bbs_G_Dry_Neph3W)
• qc_Bbs_R_Dry_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W_1)
• RH_Neph_Dry
• qc_Bs_B_Dry_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W)
• qc_Bbs_G_Dry_Neph3W
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at dry or reference RH(Bbs_B_Dry_Neph3W)
• time
• dilution_correction_factor
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  dry or reference RH(Bbs_R_Dry_Neph3W_1)
• North latitude(lat)
• Aerosol total light scattering coefficient, nominal red wavelength at dry or
  reference RH(Bs_R_Dry_Neph3W_1)
• qc_RH_Neph_Dry

• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, reference nephelometer green
  channel, 1 um particle diameter(Bs_G_Wet_1um_Neph3W_2)
• T_NephVol_Wet
• Aerosol backwards-hemispheric light scattering coefficient, reference
  nephelometer blue channel, 1 um particle diameter(Bbs_B_Wet_1um_Neph3W_2)
• P_Neph_Wet
• Aerosol backwards-hemispheric light scattering coefficient, Humidograph
  nephelometer red channel, 1(Bbs_R_Wet_1um_Neph3W_2)
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• Aerosol total light scattering coefficient, Humidograph nephelometer blue
  channel, 10 um particle di(Bs_B_Wet_10um_Neph3W_2)
• Aerosol backwards-hemispheric light scattering coefficient, reference
  nephelometer red channel, 10 um particle diameter(Bbs_R_Wet_10um_Neph3W_2)
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• Aerosol total light scattering coefficient, Humidograph nephelometer green
  channel, 10 um particle d(Bs_G_Wet_10um_Neph3W_2)
• T_NephInlet_Wet
• RH_Neph_Vol_Wet
• Aerosol total light scattering coefficient, reference nephelometer red channel,
  10 um particle diameter(Bs_R_Wet_10um_Neph3W_2)
• RH_Neph_Inlet_Wet
• Aerosol backwards-hemispheric light scattering coefficient, Humidograph
  nephelometer green channel,(Bbs_G_Wet_10um_Neph3W_2)
• time_offset
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Aerosol backwards-hemispheric light scattering coefficient, Humidograph
  nephelometer green channel,(Bbs_G_Wet_1um_Neph3W_2)
• time_bounds
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• T_Neph_Inlet_Wet
• North latitude(lat)
• impactor_setting
• Aerosol total light scattering coefficient, Humidograph nephelometer blue
  channel, 1 um particle dia(Bs_B_Wet_1um_Neph3W_2)
• RH_NephVol_Wet
• Altitude above mean sea level(alt)
• base_time
• RH_NephInlet_Wet
• East longitude(lon)
• Aerosol backwards-hemispheric light scattering coefficient, Humidograph
  nephelometer blue channel, 1(Bbs_B_Wet_10um_Neph3W_2)
• f2_flags
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• Aerosol total light scattering coefficient, Humidograph nephelometer red
  channel, 1 um particle diam(Bs_R_Wet_1um_Neph3W_2)
• T_Neph_Vol_Wet
• time

• qc_Bbs_R_Wet_Neph3W
• qc_P_Neph_Wet
• T_Neph_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W)
• qc_Bs_G_Wet_Neph3W
• qc_Bbs_G_Wet_Neph3W
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W_2)
• RH_Neph_Wet
• North latitude(lat)
• qc_RH_Neph_Wet
• Aerosol total light scattering coefficient, nominal blue wavelength at ramped RH(Bs_B_Wet_Neph3W)
• time
• qc_impactor_state
• qc_T_Neph_Inlet_Wet
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W_2)
• East longitude(lon)
• Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength
  at ramped RH(Bbs_B_Wet_Neph3W)
• qc_Bbs_B_Wet_Neph3W
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W)
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W)
• dilution_correction_factor
• base_time
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W_2)
• Aerosol back-hemispheric light scattering coefficient, nominal red wavelength at
  ramped RH(Bbs_R_Wet_Neph3W_2)
• qc_T_Neph_Wet
• T_Neph_Vol_Wet
• qc_Bs_B_Wet_Neph3W
• Impactor particle size cut(impactor_state)
• time_offset
• seconds_after_transition
• Aerosol back-hemispheric light scattering coefficient, nominal green wavelength
  at ramped RH(Bbs_G_Wet_Neph3W)
• qc_RH_Neph_Inlet_Wet
• density_correction_factor
• Aerosol total light scattering coefficient, nominal red wavelength at ramped RH(Bs_R_Wet_Neph3W_2)
• RH_Neph_Inlet_Wet
• RH_Neph_Vol_Wet
• time_bounds
• impactor_setting
• qc_Bs_R_Wet_Neph3W
• T_Neph_Inlet_Wet
• Altitude above mean sea level(alt)
• P_Neph_Wet
• Aerosol total light scattering coefficient, nominal green wavelength at ramped
  RH(Bs_G_Wet_Neph3W_2)

SGP/AOS/C1 - Under counting of CPC

The CPC count was lower than the CCN at the highest percent super saturation value (~1%) 
indicating an undercounting of the CPC due to either clogging or water condensing in the 
butanol. The CPC was removed and cleaned. The increase in signal relative to the CCN after 
cleaning was 5-10%.

• Concentration(concentration)

• Concentration(concentration)

SGP/CLAP/C1 - Dirty optics and leak in valve

Leak in valve as well as dirty optics lowered data quality and made it unusable. 
Instrument was removed for repair and cleaning.

• spot_size_area
• Impactor particle size cut(impactor_state)
• absorbance_green
• transmittance_R
• transmittance_blue
• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_CLAP3W_1)
• transmittance_red_normalization_factor
• transmittance_red
• transmittance_green
• seconds_after_transition
• transmittance_blue_normalization_factor
• absorbance_blue
• dilution_correction_factor
• active_filter_number
• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_CLAP3W_1)
• impactor_setting
• transmittance_B
• sample_length
• sample_flow_rate
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_CLAP3W_1)
• absorbance_red
• transmittance_green_normalization_factor
• transmittance_G
• filter_id

SGP/NEPHELOMETER/C1 - Bad NEPH T/RH values from thermal gradients

Due to the thermal inertia of the instrument wall, slow signal response and a radial 
temperature gradient inside the instrument cavity, the reported RH and temperature inside the 
wet nephelometer are off by 2-10% RH and 1-2 degrees C. The radial temperature gradients 
inside the instrument need to be characterized at several locations within the instrument 
with respect to a calibrated Vaisala T and RH sensor at the instrument exit. The 
resulting fRH VAP needs to be recalculated and analyzed.

• RH_NephInlet_Wet
• RH_Neph_Inlet_Wet
• T_NephVol_Wet
• T_NephInlet_Wet
• RH_Neph_Vol_Wet
• RH_NephVol_Wet
• T_Neph_Inlet_Wet
• T_Neph_Vol_Wet

• RH_Neph_Wet
• T_Neph_Wet
• RH_Neph_Inlet_Wet
• T_Neph_Inlet_Wet
• T_Neph_Vol_Wet
• RH_Neph_Vol_Wet

• RH_Neph_Wet
• T_Neph_Inlet_Wet
• T_Neph_Wet