Datastream : AOSCCN100

Aerosol Observing System (AOS): cloud condensation nuclei data

Active Dates
2010.10.08 - 2015.08.31

Measurement Categories
Aerosols, Cloud Properties

Originating Instrument
Cloud Condensation Nuclei Particle Counter (CCN)

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 partical counter (OPC) degrees C CCN_OPC_set ( time )
AOS CCN sample pressure hPa CCN_P_sample ( time )
AOS CCN volumetric flowrate of sample air cm^3/min CCN_Q_sample ( time )
AOS CCN volumetric flowrate of sheath air cm^3/minute CCN_Q_sheath ( time )
AOS CCN temperature of the optical particle counter degC CCN_T_OPC ( time )
AOS CCN temperature of sample air at entrance to instrument degrees C CCN_T_inlet ( time )
AOS CCN set point temperature for the inlet manifold degrees C CCN_T_inlet_set ( time )
AOS CCN Nafion temperature degrees C CCN_T_nafion ( time )
AOS CCN set temperature for the Nafion humidifier degrees C CCN_T_nafion_set ( time )
AOS CCN observed temperature at top of column degC CCN_T_read_TEC1 ( time )
AOS CCN observed temperature at middle of column degC CCN_T_read_TEC2 ( time )
AOS CCN (read) temperature at bottom of column degC CCN_T_read_TEC3 ( time )
AOS CCN temperature of sample air entering the column degrees C CCN_T_sample ( time )
AOS CCN set point for temperature at top of column degC CCN_T_set_TEC1 ( time )
AOS CCN set point for temperature at middle of column degC CCN_T_set_TEC2 ( time )
AOS CCN set point for temperature at bottom of column degC CCN_T_set_TEC3 ( time )
CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem unitless CCN_alarm_code ( time )
AOS CCN voltage used by DMT for OPC diagnostic purposes vokt CCN_baseline_monitor ( time )
First stage monitor voltage V) CCN_first_stage_monitor_voltage ( time )
AOS CCN set point temperature for the inlet manifold degrees C CCN_inlet_set ( time )
AOS CCN OPC laser current mA CCN_laser_current ( time )
AOS CCN set temperature for the Nafion humidifier degrees C CCN_nafion_set ( time )
Number of particles that are larger than 10um count CCN_overflow ( time )
CCN Proportional valve voltage V CCN_proportional_valve_voltage ( time )
AOS CCN sample saturation setpoint value reported by instrument % CCN_ss_set ( time )
AOS CCN super saturation (calculated) % CCN_super_saturation_calculated ( time )
AOS CCN sample supersaturation set point value reported by instrument % CCN_supersaturation_set_point ( time )
AOS CCN observed temperature at top of column deg CCN_t_read_TEC1 ( time )
AOS CCN observed temperature at middle of column degrees C CCN_t_read_TEC2 ( time )
AOS CCN (read) temperature at bottom of column degC CCN_t_read_TEC3 ( time )
AOS CCN set point for temperature at top of column degrees C CCN_t_set_TEC1 ( time )
AOS CCN set point for temperature at middle of column degrees C CCN_t_set_TEC2 ( time )
AOS CCN set point for temperature at bottom of column degrees C CCN_t_set_TEC3 ( 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 unitless CCN_temp_unstable ( time )
Hexadecimal flag, non-zero value means instrument is not operating stably unitless CCN_temp_unstable_flag ( time )
CCN temperature gradient degC CCN_temperature_gradient ( time )
Standard deviation of CCN temperature gradient (CCN_t_read_TEC3 - CCN_t_read_TEC1) degC CCN_temperature_std ( time )
Size of upper limit of each CCN bin um CCN_upper_size_limit ( num_bins )
AOS number concentration of CCN 1/cm^3 N_CCN ( time )
AOS bin number of lowest channel of OPC include in summation of N_CCN unitless N_CCN_bin_number ( time )
AOS CCN number concentration by bin count N_CCN_dN ( time, size_bin )
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
Droplet size bins for CCN number concentration um size_bin ( size_bin )
Droplet bin bounds size_bin_bounds ( size_bin, bound )
Time offset from midnight time ( time )
Time cell bounds time_bounds ( time, bound )
Time offset from base_time time_offset ( time )

Locations

Eastern North Atlantic
ENAC1 Browse DataGraciosa Island, Azores, Portugal
North Slope Alaska
NSAX1 Browse DataExternal Data (satellites and others) retired
Southern Great Plains
SGPC1 Browse Data Browse PlotsCentral Facility, Lamont, OK
ARM Mobile Facility
ACXM1 Browse DataOff the Coast of California - NOAA Ship Ronald H. Brown; AMF2
MAGM1 Browse Data Browse PlotsLos Angeles, CA to Honolulu, HI - container ship Horizon Spirit; AMF2 retired
MAOM1 Browse Data Browse PlotsManacapuru, Amazonas, Brazil; AMF1
PGHM1 Browse DataARIES Observatory, Nainital, Uttarkhand, India retired
PVCM1 Browse Data Browse PlotsHighland Center, Cape Cod MA; AMF 1 retired
SBSS2 Browse DataSteamboat Springs CO, Christie Peak retired
TMPS1 Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS
 retired = Originating instrument has been retired at this location