Subject: | ENA/CCN/C1 - Instrument calibration |
DataStreams: | enaaosccn1colspectraC1.b1, enaaosccn1colavgC1.b1, enaaosccn100C1.01, enaaosccn100C1.00, enaaosccn1colC1.b1, enaaosccn100C1.a1
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Description: | Instrument calibration, no valid data. |
Suggestions: | Do not use the data from these time periods. |
Measurements: | enaaosccn1colspectraC1.b1: - Ratio of N_CCN to concentration(f_CCN)
- CCN estimated from smoothed coefficients(N_CCN_fit_smoothed)
- Fitted value of N_CCN versus calculated supersaturation(N_CCN_fit_value)
- Aerosol concentration averaged over times to match N_CCN(concentration)
- Cloud condensation nuclei number density(N_CCN)
- Sample supersaturation calculated via Lance/Rose method(supersaturation_calculated)
- Temporally smoothed N_CCN fit coefficients.(N_CCN_fit_coefs_smoothed)
- Absolute relative error between N_CCN measurement and fit(N_CCN_fit_error)
- Coefficients for quadratic fit of N_CCN vs supersaturation(N_CCN_fit_coefs)
- Supersaturation set point(supersaturation_setpoint)
- Supersaturation setpoint start time, relative to midnight(setpoint_time)
more
enaaosccn1colavgC1.b1: - Number of particles that are larger than 10um(overflow)
- Cloud condensation nuclei number density(N_CCN)
- Sample supersaturation calculated via Lance/Rose method(supersaturation_calculated)
- Volumetric flow rate of sample air(Q_sample)
- Supersaturation set point values(setpoint)
- Droplet bin bounds(droplet_size_bounds)
- First bin used in N_CCN_reduced calculation.(first_bin_used)
- AOS CCN number concentration by bin(N_CCN_dN)
- aerosol particle number concentration(aerosol_number_concentration)
- Size bins for CCN droplet count(droplet_size)
- N_CCN calculated excluding counts below "first_bin_used"(N_CCN_reduced)
more
enaaosccn100C1.01: - AOS CCN observed temperature at top of column(CCN_t_read_TEC1)
- AOS CCN observed temperature at middle of column(CCN_t_read_TEC2)
- AOS CCN (read) temperature at bottom of column(CCN_t_read_TEC3)
- Size bins for CCN droplet count(size_bin)
- AOS CCN voltage used by DMT for OPC diagnostic purposes(CCN_baseline_monitor)
- Cloud condensation nuclei number density(N_CCN)
- AOS CCN set point temperature for the optical particle counter (OPC)(CCN_OPC_set)
- AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
- Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
- AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
- AOS CCN temperature of the nafion humidifier(CCN_T_nafion)
- AOS CCN OPC laser current(CCN_laser_current)
- First stage monitor voltage(CCN_first_stage_monitor_voltage)
- AOS CCN sample pressure(CCN_P_sample)
- AOS CCN temperature of sample air entering the column(CCN_T_sample)
- AOS CCN super saturation (calculated)(CCN_super_saturation_calculated)
- AOS CCN sample supersaturation set point value reported by instrument(CCN_supersaturation_set_point)
- AOS CCN observed temperature at middle of column(CCN_T_read_TEC2)
- AOS CCN (read) temperature at bottom of column(CCN_T_read_TEC3)
- 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 observed temperature at top of column(CCN_T_read_TEC1)
- CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected
problem(CCN_alarm_code) - AOS CCN set temperature for the Nafion humidifier(CCN_T_nafion_set)
- AOS CCN temperature of the optical particle counter(CCN_T_OPC)
- AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
- Temperature difference between CCN_t_set_TEC3 and CCN_t_set_TEC1(CCN_temperature_gradient)
- 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) - AOS CCN set point for temperature at top of column(CCN_T_set_TEC1)
- CCN Proportional valve voltage(CCN_proportional_valve_voltage)
- AOS CCN set point for temperature at bottom of column(CCN_T_set_TEC3)
- AOS CCN set point for temperature at middle of column(CCN_T_set_TEC2)
- Droplet bin bounds(size_bin_bounds)
- AOS CCN number concentration by bin(N_CCN_dN)
- AOS CCN set point temperature for the inlet manifold(CCN_T_inlet_set)
- Standard deviation of CCN temperature gradient (CCN_t_read_TEC3 -
CCN_t_read_TEC1)(CCN_temperature_std) - AOS CCN temperature of sample air at entrance to instrument(CCN_T_inlet)
- Number of particles that are larger than 10um(CCN_overflow)
more
enaaosccn100C1.a1: - AOS CCN sample supersaturation set point value reported by instrument(CCN_supersaturation_set_point)
- AOS CCN set point temperature for the optical particle counter (OPC)(CCN_OPC_set)
- Standard deviation of CCN temperature gradient (CCN_t_read_TEC3 -
CCN_t_read_TEC1)(CCN_temperature_std) - AOS CCN set temperature for the Nafion humidifier(CCN_T_nafion_set)
- Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
- 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 (read) temperature at bottom of column(CCN_t_read_TEC3)
- 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) - AOS CCN voltage used by DMT for OPC diagnostic purposes(CCN_baseline_monitor)
- First stage monitor voltage(CCN_first_stage_monitor_voltage)
- AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
- CCN Proportional valve voltage(CCN_proportional_valve_voltage)
- Temperature difference between CCN_t_set_TEC3 and CCN_t_set_TEC1(CCN_temperature_gradient)
- AOS CCN OPC laser current(CCN_laser_current)
- Size bins for CCN droplet count(size_bin)
- AOS CCN set point for temperature at top of column(CCN_T_set_TEC1)
- AOS CCN set point for temperature at middle of column(CCN_T_set_TEC2)
- AOS CCN set point for temperature at bottom of column(CCN_T_set_TEC3)
- AOS CCN temperature of the optical particle counter(CCN_T_OPC)
- Number of particles that are larger than 10um(CCN_overflow)
- 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 super saturation (calculated)(CCN_super_saturation_calculated)
- AOS CCN (read) temperature at bottom of column(CCN_T_read_TEC3)
- AOS CCN observed temperature at top of column(CCN_T_read_TEC1)
- AOS CCN observed temperature at middle of column(CCN_T_read_TEC2)
- AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
- Cloud condensation nuclei number density(N_CCN)
- AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
- AOS CCN temperature of the nafion humidifier(CCN_T_nafion)
- AOS CCN temperature of sample air at entrance to instrument(CCN_T_inlet)
- AOS CCN sample pressure(CCN_P_sample)
- AOS CCN set point temperature for the inlet manifold(CCN_T_inlet_set)
- AOS CCN temperature of sample air entering the column(CCN_T_sample)
- CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected
problem(CCN_alarm_code) more
enaaosccn1colC1.b1: - First stage monitor voltage(first_stage_monitor_voltage)
- Number of particles that are larger than 10um(overflow)
- Temperature set point at bottom of column(T_set_TEC3)
- Temperature set point at middle of column(T_set_TEC2)
- Temperature set point at top of column(T_set_TEC1)
- Cloud condensation nuclei number density(N_CCN)
- Eta factor used in calculation of supersaturation_calculated(eta)
- Temperature read at top of column(T_read_TEC1)
- Temperature read at middle of column(T_read_TEC2)
- Temperature read at bottom of column(T_read_TEC3)
- Sample supersaturation calculated via Lance/Rose method(supersaturation_calculated)
- Reported temperature difference between T_set_TEC3 and T_set_TEC1(reported_temperature_gradient)
- AOS CCN number concentration by bin(N_CCN_dN)
- Temperature read of sample air at entrance to instrument(T_inlet)
- Temperature difference between T_set_TEC3 and T_set_TEC1(T_set_gradient)
- OPC laser current(laser_current)
- Target supersaturation calculated via Lance/Rose method, computed from
eta_target(supersaturation_calculated_target) - T_OPC - T_read_TEC3 temperature difference(dT_OPC)
- Nafion temperature(T_nafion)
- Sample pressure(P_sample)
- Volumetric flow rate of sample air(Q_sample)
- Temperature read of sample air entering the column(T_sample)
- Temperature difference between T_read_TEC3 and T_read_TEC1(T_read_gradient)
- Lookup table for eta computation(eta_lookup_table)
- Eta factor used in calculation of
supersaturation_calculated_estimated_equilibrium_target(eta_target) - Sample supersaturation set point value reported by instrument(supersaturation_set_point)
- CCN Proportional valve voltage(proportional_valve_voltage)
- Estimated target thermal gradient under current operating conditions(dT_target_estimated)
- Standard deviation of (T_read_TEC3 - T_read_TEC1)(temperature_std)
- Droplet bin bounds(size_bin_bounds)
- Size bins for CCN droplet count(size_bin)
- Volumetric flow rate of sheath air(Q_sheath)
- seconds since last impactor transition(seconds_after_transition)
- Temperature read of the optical particle counter(T_OPC)
- Logical value, indicating whether the instrument has reached thermal gradient
stabilization and is within 0.4 degrees C of the set point(temp_unstable) - Bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
more
enaaosccn100C1.00: - (Raw data stream - documentation not supported)
more
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