The Precipitation Occurrence Sensor System (POSS) is a ground-based X-band, continuous-wave Doppler radar developed by the Meteorological Service of Canada. It measures Doppler signals from particles to determine precipitation occurrence, type, and rate. POSS operates at 10.525 GHz with a spectral resolution of 16 Hz. It samples falling particles within a small measurement volume extending 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
 Field Site Stationary 76 Campaigns · 175 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
 GPM Cold Season Precipitation Experiment 2012 Ontario, Canada and northern portions of the United States (e.g., New York state, the New England area, etc.) 1 Deployment · 44 Data Products
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