CEOS Instrument: Dual-frequency Precipitation Radar

Agency: JAXA
Mission: GPM Core
Status:Being developed
Type:Cloud and precipitation radar
Description:Measures precipitation rate classified by rain and snow, in latitudes up to 65 degrees.
Spatial Resolution: Range resolution: 5 km Horizontal
Swath Width: 245 km (Ku-band), 125 km (Ka band)
Wavebands: Microwave: 13.6 GHz (Ku band) and 35.5 GHz (Ka band)
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:

  Precipitation rate (liquid) at the surface

(select measurement name to view details)

CEOS Systems Engineering Office (SEO)

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