Instrument : Cloud Condensation Nuclei Particle Counter (CCN)

Instrument Categories
Aerosols, Airborne Observations

A cloud condensation nuclei counter consists of a flow column set up to create thermodynamically unstable controlled variable supersaturation conditions in the air sample stream and optically counts the particles that can form cloud droplets as a function of supersaturation.

The CCN is part of the Aerosol Observing System (AOS).

Output Datastreams

  • aosccn : Aerosol Observing System (AOS): cloud condensation nuclei data
  • aosccn100 : Aerosol Observing System (AOS): cloud condensation nuclei data
  • aosccn200 : AOS: Dual Column Cloud Condensation Nuclei Counter
  • noaaaosccn100 : Aerosol Observing System (AOS): cloud condensation nuclei data

Primary Measurements

The following measurements are those considered scientifically relevant.

Locations

 retired = Originating instrument has been retired at this location
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 DataCentral Facility, Lamont, OK
ARM Mobile Facility
ACXM1 Browse DataOff the Coast of California - NOAA Ship Ronald H. Brown; AMF2
FKBM1 Browse DataBlack Forest, Germany retired
GRWM1 Browse DataGraciosa Island, Azores, Portugal retired
HFEM1 Browse DataShouxian, Anhui, China retired
MAGM1 Browse Data Browse PlotsLos Angeles, CA to Honolulu, HI - container ship Horizon Spirit; AMF2 retired
MAOM1 Browse Data Browse PlotsManacapuru, Amazonas, Brazil; AMF1
NIMM1 Browse DataNiamey, Niger retired
PGHM1 Browse DataARIES Observatory, Nainital, Uttarkhand, India retired
PVCM1 Browse Data Browse PlotsHighland Center, Cape Cod MA; AMF 1 retired
PYEM1 Browse DataPoint Reyes, CA retired
SBSS2 Browse DataSteamboat Springs CO, Christie Peak retired
TMPS1 Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS

See Also

Contact(s)

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

Scott Smith
Brookhaven National Laboratory
associate
(631) 344-7197
ssmith@bnl.gov

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