The Continuous Flow Diffusion Chamber (CFDC) is an in situ airborne optical particle counter (OPC). It uses vertical flow through two chambers with different wall temperatures to grow ice particles inside the OPC at the bottom of the instrument, which helps determine particle size distribution. The CFDC can also measure flow rate, temperature, and humidity if conditions are stable. It measures the size distribution of aerosol particles ranging from 0.4 to 20 mm. The device counts particles every 0.2 seconds and records particle spectra every 10 seconds.
Instrument Details
- Optical/Photon
- Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > HumidityEarth Science > Atmosphere > AerosolsEarth Science > Atmosphere > Clouds > Cloud MicrophysicsEarth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size DistributionEarth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature
- Troposphere
- 0.2s, 10 s
- Point
- N/A
- https://doi.org/10.1175/1520-0426(2001)018%3C0725:ACFDCF%3E2.0.CO;2
Paul J. DeMott
Paul J. DeMott
Currently unavailable
NSF, NASA
Unpublished
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