Summary of the available cloud physics and aerosol instruments and their measurement capabilities

  • UCN (Ultrafine Condensation Nuclei) : 0.003 - 3 um, aerosols
  • CN (Condensation Nuclei) : 0.01 - 3 um, aerosols
  • SPP-100 (FSSP, Forward Scattering Spectrometer Probe) : 2 - 47 um, cloud droplets
  • SPP-300 (FSSP) : 0.3 - 20 um, unactivated cloud droplets / haze size
  • SPP-200 (PCASP, Passive Cavity Aerosol Spectrometer Probe) : 0.1 - 3 um, aerosols, (NH4)2SO4
  • UHSAS (Ultra High resolution Aerosol Spectrometer) : 0.075 - 1 um, aerosols
  • ToF AMS (Time of Flight Aerosol Mass Spectrometer) : 0.05 - 0.5 um, aerosols
  • CDP (cloud Droplet Probe) : 2 - 50 um, water droplets, ice crystals (less)
  • 2D-C 10 um (2-D imaging spectrometer) : 18 - 640 um, ice, water
  • 2D-C 25 um (2-D imaging spectrometer) : 25 - 1600 um, ice, water
  • 2DS (2-D imaging spectrometer; 10 um res.) : 10 - 1280 um, ice, water
  • 2D-P (2-D imaging spectrometer) : 200 - 6400 um, rain, snow
  • SID2-H (Small Ice Detector) : snow, ice
  • 3V-CPI (hybrid imaging spectrometer) : 10 - 1280 um, 2.3 um resolution CCD; images, sizing
  • GNI (Giant Nuclei Impactor) : 1 - 100 um, 0.4 um resolution, aerosols, salt