The Precipitation Occurrence Sensor System (POSS) is a ground-based X-band, continuous wave Doppler radar designed by the Meteorological Service of Canada. It measures the Doppler signals of particles to determine precipitation occurrence, type, and rate. POSS operates at the 10.525 GHz frequency and has a spectral resolution of 16 Hz. It measures the falling particles through a small measurement volume extending to about 2 meters above the sensor. POSS provides 1-minute-averaged measurements and has a sampling frequency of 2.048 kHz.
Instrument Details
- Radar
- Earth Science > Atmosphere > Precipitation > Droplet SizeEarth Science > Atmosphere > Precipitation > Solid PrecipitationEarth Science > Atmosphere > Precipitation > HydrometeorsEarth Science > Atmosphere > PrecipitationEarth Science > Atmosphere > Precipitation > Liquid PrecipitationEarth Science > Spectral/engineering > Radar > Doppler VelocityEarth Science > Atmosphere > Precipitation > Precipitation RateEarth Science > Spectral/engineering > Radar > Radar BackscatterEarth Science > Spectral/engineering > Radar > Radar Reflectivity
- Full Column Profile
- 1 minute
- N/A
- 10.5 GHz
- https://doi.org/10.1175/2007JTECHA957.1
B. E. Sheppard
Ken Wu
Meteorological Service of Canada
Currently unavailable
- Global Hydrology Resource Center DAAC (GHRC)
data center outside NASA
 Campaign Field Sites Stationary 60 Campaigns · 165 Instruments |  Light Precipitation Evaluation Experiment 2010 Gulf of Finland 1 Deployment · 22 Data Products
C3VP Canadian CloudSat/CALIPSO Validation Project 2006—2007 Ontario, Canada 1 Deployment · 6 Data Products
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