The Phase Doppler Interferometer (PDI) is an in situ airborne interferometer developed by Artium Technologies, Inc. It is based on light scattering interferometry and laser Doppler velocimetry to measure the size and velocity of spherical cloud particles. It operates at wavelengths of 491, 532, 561, and 660 nm and has a measurement duration of 1 second. PDI can measure droplet sizes from 0.3 to 6000 μm and velocities from -600 to 1000 meters per second
Instrument Details
- Spectrometer/Radiometer
- Earth Science > Atmosphere > Clouds > Cloud MicrophysicsEarth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Droplet Concentration/size
- Troposphere
- 1 s
- Point
- 610.6 THz, 563.5 THz, 534.4 THz, 454.2 THz
- Currently unavailble
Currently unavailable
Currently unavailable
Artium Technologies, Inc.
Currently unavailable
Unpublished
 DeHavilland DHC-6-300 Twin Otter 22 Campaigns · 84 Instruments |  Cloud and Land Surface Interaction Campaign 2007 2007 Southern Great Plains, Oklahoma, Kansas 1 Deployment · 7 Data Products
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 P-3 Orion 29 Campaigns · 149 Instruments |  Observations of Aerosols above Clouds and their Interactions 2016—2018 Southeastern Atlantic Ocean, Southern Africa 3 Deployments · 8 Data Products
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