The Continuous Flow Diffusion Chamber (CFDC) is an aircraft-borne optical particle counter (OPC). As an OPC, this in-situ instrument utilizes vertical flow through two 100 cm chambers with varying wall temperatures to grow ice particles within an OPC at the bottom of the CFDC and determine their particle size distribution between 0.4 and 20 mm. Additionally, when conditions are kept in steady state, measurements of flow rate, temperature, and humidity can be made. Particle counts are measured every 0.2 s and particle spectra every 10 s.
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
- 0.2 - 10 s
- Point Resolution
- This data will be added in future versions.
- 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Unpublished
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