CEOS Instrument: Precipitation Radar

Agencies: JAXA [Primary]
Missions: TRMM
Type:Cloud and precipitation radar
Description:Measures precipitation rate in tropical latitudes
Spatial Resolution: Range resolution: 250 m Horizontal resolution: 4.3 km at nadir (post-boost:5km)
Swath Width: 215 km (post-boost: 245 km) Observable range: from surface to approx 15 km altitude
Wavebands: Microwave: 13.796 GHz and 13.802 GHz
Technology: Cloud and precipitation radar
Description: Nadir-pointing radar to observe the profile of liquid and ice water in clouds. Depending on the frequency, the radar better observes liquid precipitation (~ 14 GHz), solid precipitation (~ 35 GHz) or non-precipitating clouds (~ 94 GHz). The antenna size is dimensioned for a ground resolution typically of ~ 5 km and the vertical resolution is 250-500 m. Pushbroom multi-feed provides limited swath (few 100ís km for lower frequencies, basically zero at the highest frequency). Applicable only in LEO.

Measurement List:

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CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18