DQRID : D160119.11
Start DateStart TimeEnd DateEnd Time
11/23/2015210001/16/20160000
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Subject:
SGP/CCN/C1 - Failed water pumped removed for service
DataStreams:sgpaosccnavgC1.c1, sgpaosccn100C1.a1, sgpaosccnavgC1.c2, sgpaosccnC1.a1, sgpaosccnC1.00
Description:
CCN water drain pump was not working. CCN removed for repair. The pumps were replaced and 
instrument recalibrated.
Suggestions: 
Measurements:sgpaosccnC1.a1:
  • First stage monitor voltage(CCN_FirstStageMonitorVoltage)
  • CCN Propotional valve voltage(CCN_ProportionalValveVoltage)
  • base time in epoch(base_time)
  • AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
  • lon(lon)
  • AOS CCN standard deviation of difference (CCN_T_TEM1 - CCN_T_TEC3)(CCN_dT_TEC3_TEC1_StdDev)
  • time_in_seconds_since_volume_start(time)
  • AOS CCN temperature of sample air entering the column(CCN_T_sample)
  • AOS CCN sample pressure(CCN_P_sample)
  • AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
  • AOS CCN number concentration by bin(N_CCN_dN)
  • 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)
  • CCN temperature gradient(CCN_Temperature_Gradient)
  • North Latitude(lat)
  • Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • 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)
  • -180.0 - +180.0(alt)
  • Cloud condensation nuclei number density(N_CCN)
  • Time offset from base_time(time_offset)
  • AOS CCN sample supersaturation calculated by model)(CCN_ss_calc)
  • AOS CCN temperature of the optical particle counter(CCN_T_OPC)
  • AOS CCN OPC laser current(CCN_laser_current)
  • AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
  • AOS CCN temperature of sample air at entrance to instrument(CCN_T_inlet)
  • Size of upper limit of each CCN bin(CCN_UpperSizeLimit)
  • AOS CCN temperature of the nafion humidifier(CCN_T_nafion)
more
sgpaosccnC1.00:
  • (Raw data stream - documentation not supported)
more
sgpaosccn100C1.a1:
  • AOS CCN temperature of the nafion humidifier(CCN_T_nafion)
  • Temperature difference between CCN_t_set_TEC3 and CCN_t_set_TEC1(CCN_temperature_gradient)
  • time_in_seconds_since_volume_start(time)
  • AOS CCN temperature of sample air entering the column(CCN_T_sample)
  • AOS CCN super saturation (calculated)(CCN_super_saturation_calculated)
  • First stage monitor voltage(CCN_first_stage_monitor_voltage)
  • AOS CCN number concentration by bin(N_CCN_dN)
  • lon(lon)
  • AOS CCN sample pressure(CCN_P_sample)
  • Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
  • Time offset from base_time(time_offset)
  • AOS CCN (read) temperature at bottom of column(CCN_t_read_TEC3)
  • AOS CCN observed temperature at middle of column(CCN_t_read_TEC2)
  • AOS CCN observed temperature at top of column(CCN_t_read_TEC1)
  • 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)
  • -180.0 - +180.0(alt)
  • base time in epoch(base_time)
  • AOS CCN temperature of sample air at entrance to instrument(CCN_T_inlet)
  • North Latitude(lat)
  • AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
  • Cloud condensation nuclei number density(N_CCN)
  • Standard deviation of CCN temperature gradient (CCN_t_read_TEC3 -
    CCN_t_read_TEC1)(CCN_temperature_std)
  • AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
  • CCN Proportional valve voltage(CCN_proportional_valve_voltage)
  • AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
  • AOS CCN OPC laser current(CCN_laser_current)
  • AOS CCN temperature of the optical particle counter(CCN_T_OPC)
more
sgpaosccnavgC1.c2:
  • AOS CCN number concentration by bin(N_CCN_dN)
  • Cloud condensation nuclei number density(N_CCN)
  • time_in_seconds_since_volume_start(time)
  • Standard deviation of number concentration of CCN(N_CCN_std)
  • Condensation particle concentration number(N_CPC)
  • Sample supersaturation calculated via Lance/Rose method(supersaturation_calculated)
  • Standard deviation of measured temperature difference between top and bottom of
    column(column_temperature_gradient_measured_std)
  • North Latitude(lat)
  • base time in epoch(base_time)
  • Time offset from base_time(time_offset)
  • -180.0 - +180.0(alt)
  • lon(lon)
  • Supersaturation set point(supersaturation_setpoint)
  • Size bins for CCN droplet count(droplet_size)
  • Standard deviation of Condensation Particle Concentration Number(N_CPC_std)
  • Gradient between column top and bottom temperature settings(column_temperature_gradient_setting)
  • Measured temperature difference between top and bottom of column(column_temperature_gradient_measured)
more
sgpaosccnavgC1.c1:
  • Standard deviation of Condensation Particle Concentration Number(N_CPC_std)
  • Gradient between column top and bottom temperature settings(column_temperature_gradient_setting)
  • base time in epoch(base_time)
  • Supersaturation set point(supersaturation_setpoint)
  • North Latitude(lat)
  • Standard deviation of number concentration of CCN(N_CCN_std)
  • -180.0 - +180.0(alt)
  • time_in_seconds_since_volume_start(time)
  • Time offset from base_time(time_offset)
  • Standard deviation of measured temperature difference between top and bottom of
    column(column_temperature_gradient_measured_std)
  • lon(lon)
  • AOS CCN number concentration by bin(N_CCN_dN)
  • Measured temperature difference between top and bottom of column(column_temperature_gradient_measured)
  • Cloud condensation nuclei number density(N_CCN)
  • Sample supersaturation calculated via Lance/Rose method(supersaturation_calculated)
  • Condensation particle concentration number(N_CPC)
  • Size bins for CCN droplet count(droplet_size)
more

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