Datastream : AOSCCN2COLBSPECTRA

AOS: Cloud Condensation Nuclei Counter (Dual Column), non-ramping mode spectral data

Active Dates
2016.04.24 - 2016.05.13

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
Mean number concentration of activated condensation nuclei 1/cm^3 N_CCN ( time, supersaturation_setpoint )
Coefficients for quadratic fit of N_CCN vs supersaturation unitless N_CCN_fit_coefs ( time, polynomial_order )
Temporally smoothed N_CCN fit coefficients. unitless N_CCN_fit_coefs_smoothed ( time, polynomial_order )
Absolute relative error between N_CCN measurement and fit 1/cm^3 N_CCN_fit_error ( time, supersaturation_setpoint )
CCN estimated from smoothed coefficients unitless N_CCN_fit_smoothed ( time, supersaturation_setpoint )
Fitted value of N_CCN versus calculated supersaturation 1/cm^3 N_CCN_fit_value ( time, supersaturation_setpoint )
Altitude above mean sea level m alt
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
Aerosol concentration averaged over times to match N_CCN 1/cm^3 concentration ( time, supersaturation_setpoint )
Ratio of N_CCN to concentration unitless f_CCN ( time, supersaturation_setpoint )
North latitude degree_N lat
East longitude degree_E lon
Quality check results on field: Mean number concentration of activated condensation nuclei unitless qc_N_CCN ( time, supersaturation_setpoint )
Quality check results on field: Ratio of N_CCN to concentration unitless qc_f_CCN ( time, supersaturation_setpoint )
Supersaturation setpoint start time, relative to midnight s setpoint_time ( time, supersaturation_setpoint )
Mean supersaturation_calculated at times to match N_CCN_mean_interquartile samples. % supersaturation_calculated ( time, supersaturation_setpoint )
Supersaturation set point % supersaturation_setpoint ( supersaturation_setpoint )
Time offset from midnight time ( time )
Time cell bounds time_bounds ( time, bound )
Time offset from base_time time_offset ( time )

Locations

ARM Mobile Facility
ASIM1 Browse DataAscension Island, South Atlantic Ocean; AMF1

Contact(s)

Cynthia Salwen
Brookhaven National Laboratory
associate
631-344-3461
salwen@bnl.gov

Janek Uin
Brookhaven National Laboratory
associate
6313443612
juin@bnl.gov

Gunnar Senum
Brookhaven National Laboratory
(631) 344-3896
gsenum@bnl.gov

Stephen Springston
Brookhaven National Laboratory
(631) 344-4477
srs@bnl.gov

Anne Jefferson
NOAA
(303) 497-6493
anne.jefferson@noaa.gov

Elisabeth Andrews
University of Colorado
(303) 497-5171
betsy.andrews@noaa.gov