Datastream : AOSCCN200

AOS: Dual Column Cloud Condensation Nuclei Counter

Active Dates
2012.06.24 - 2016.09.14

Measurement Categories
Aerosols, Cloud Properties

Originating Instrument
Aerosol Observing System (AOS)

Measurements

Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
AOS CCN set point temperature for the optical particle counter (OPC), first column degrees C CCN_OPC_set_1 ( time )
AOS CCN set point temperature for the optical partical counter (OPC), second CCN degrees C CCN_OPC_set_2 ( time )
AOS CCN sample pressure, first column hPa CCN_P_sample_1 ( time )
AOS CCN sample pressure, second CCN hPa CCN_P_sample_2 ( time )
AOS CCN volumetric flowrate of sample air, first CCN cm^3/minute CCN_Q_sample_1 ( time )
AOS CCN volumetric flowrate of sample air, second CCN cm^3/min CCN_Q_sample_2 ( time )
AOS CCN volumetric flowrate of sheath air, first CCN cm^3/minute CCN_Q_sheath_1 ( time )
AOS CCN volumetric flow rate of sheath air, second column cm^3/minute CCN_Q_sheath_2 ( time )
AOS CCN temperature of the optical particle counter, first CCN degC CCN_T_OPC_1 ( time )
AOS CCN temperature of the optical particle counter, second CCN degC CCN_T_OPC_2 ( time )
AOS CCN temperature of sample air at entrance to instrument, first CCN degC CCN_T_inlet_1 ( time )
AOS CCN set point temperature for the inlet manifold, second column degC CCN_T_inlet_2 ( time )
AOS CCN set point temperature for the inlet manifold, first column degC CCN_T_inlet_set_1 ( time )
AOS CCN temperature of sample air at entrance to instrument, second column degC CCN_T_inlet_set_2 ( time )
AOS CCN Nafion temperature, first column degC CCN_T_nafion_1 ( time )
AOS CCN Nafion temperature, second column degrees C CCN_T_nafion_2 ( time )
AOS CCN set temperature for the Nafion humidifier, first column degC CCN_T_nafion_set_1 ( time )
AOS CCN set temperature for the Nafion humidifier, second column degC CCN_T_nafion_set_2 ( time )
AOS CCN observed temperature at top of column, first CCN degC CCN_T_read_TEC1_1 ( time )
AOS CCN observed temperature at top of column, second column degrees C CCN_T_read_TEC1_2 ( time )
AOS CCN observed temperature at middle of column, first CCN degrees C CCN_T_read_TEC2_1 ( time )
AOS CCN observed temperature at middle of column, second column degrees C CCN_T_read_TEC2_2 ( time )
AOS CCN (read) temperature at bottom of column, first CCN degC CCN_T_read_TEC3_1 ( time )
AOS CCN (read) temperature at bottom of column, second column degC CCN_T_read_TEC3_2 ( time )
AOS CCN temperature of sample air entering the column, first CCN degrees C CCN_T_sample_1 ( time )
AOS CCN temperature of sample air entering the column, second CCN degC CCN_T_sample_2 ( time )
AOS CCN set point for temperature at top of column, first CCN degrees C CCN_T_set_TEC1_1 ( time )
AOS CCN set point for temperature at top of column, second column degC CCN_T_set_TEC1_2 ( time )
AOS CCN set point for temperature at middle of column, first CCN degrees C CCN_T_set_TEC2_1 ( time )
AOS CCN set point for temperature at middle of column, second CCN degC CCN_T_set_TEC2_2 ( time )
AOS CCN set point for temperature at bottom of column, first CCN degC CCN_T_set_TEC3_1 ( time )
AOS CCN set point for temperature at bottom of column, second column degC CCN_T_set_TEC3_2 ( time )
CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem unitless CCN_alarm_code ( time )
CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem, first column unitless CCN_alarm_code_1 ( time )
CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem, second column unitless CCN_alarm_code_2 ( time )
AOS CCN voltage used by DMT for OPC diagnostic purposes, first column volt CCN_baseline_monitor_1 ( time )
AOS CCN voltage used by DMT for OPC diagnostic purposes, second column volt CCN_baseline_monitor_2 ( time )
First stage monitor voltage, first column V) CCN_first_stage_monitor_voltage_1 ( time )
First stage monitor voltage, second column V CCN_first_stage_monitor_voltage_2 ( time )
AOS CCN set point temperature for the inlet manifold, first CCN degrees C CCN_inlet_set_1 ( time )
AOS CCN set point temperature for the inlet manifold, second CCN degrees C CCN_inlet_set_2 ( time )
AOS CCN OPC laser current, first column mA CCN_laser_current_1 ( time )
AOS CCN OPC laser current, second column mA CCN_laser_current_2 ( time )
AOS CCN set temperature for the Nafion humidifier, first CCN degC CCN_nafion_set_1 ( time )
AOS CCN set temperature for the Nafion humidifier, second CCN degC CCN_nafion_set_2 ( time )
Number of particles that are larger than 10um, first column count CCN_overflow_1 ( time )
Number of particles that are larger than 10um, second column count CCN_overflow_2 ( time )
CCN Proportional valve voltage, first column V CCN_proportional_valve_voltage_1 ( time )
CCN Proportional valve voltage, second column V CCN_proportional_valve_voltage_2 ( time )
AOS CCN sample saturation setpoint value reported by instrument, first CCN % CCN_ss_set_1 ( time )
AOS CCN sample saturation setpoint value reported by instrument, second CCN % CCN_ss_set_2 ( time )
AOS CCN sample supersaturation set point value reported by instrument, first column % CCN_supersaturation_set_point_1 ( time )
AOS CCN sample supersaturation set point value reported by instrument, second column % CCN_supersaturation_set_point_2 ( time )
AOS CCN logical value, indicating whether the instrument has reached thermal gradient stabilization and is within 0.4 degrees C of the set point, first column unitless CCN_temp_unstable_1 ( time )
AOS CCN logical value, indicating whether the instrument has reached thermal gradient stabilization and is within 0.4 degrees C of the set point, second column unitless CCN_temp_unstable_2 ( time )
Hexadecimal flag, non-zero value means instrument is not operating stably, first CCN unitless CCN_temp_unstable_flag_1 ( time )
Hexadecimal flag, non-zero value means instrument is not operating stably, second CCN unitless CCN_temp_unstable_flag_2 ( time )
Temperature difference between CCN_T_set_TEC3_1 and CCN_T_set_TEC1_1, first column degC CCN_temperature_gradient_1 ( time )
CCN temperature gradient, second CCN degC CCN_temperature_gradient_2 ( time )
Size of upper limit of each CCN bin um CCN_upper_size_limit ( num_bins )
AOS number concentration of CCN, first column 1/cm^3 N_CCN_1 ( time )
AOS number concentration of CCN, second column 1/cm^3 N_CCN_2 ( time )
AOS bin number of lowest channel of OPC include in summation of N_CCN, first CCN unitless N_CCN_bin_number_1 ( time )
AOS bin number of lowest channel of OPC include in summation of N_CCN, second CCN unitless N_CCN_bin_number_2 ( time )
AOS CCN droplet count by bin size, first column count/s N_CCN_dN_1 ( time, num_bins )
AOS CCN droplet count by bin size, second column count/s N_CCN_dN_2 ( time, num_bins )
Altitude above mean sea level m alt
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
North latitude degree_N lat
East longitude degree_E lon
Size bins for CCN droplet count um size_bin ( size_bin )
Droplet bin bounds size_bin_bounds ( size_bin, bound )
Time offset from midnight time ( time )
Time offset from base_time time_offset ( time )

Locations

Southern Great Plains
SGPS01 Browse Data Browse PlotsSupplemental 1, Lamont, OK
ARM Mobile Facility
ASIM1 Browse Data Browse PlotsAscension Island, South Atlantic Ocean; AMF1
PVCS1 Browse Data Browse PlotsHighland Center, Cape Cod MA; MAOS retired
 retired = Originating instrument has been retired at this location