CRL Airborne Multiparameter Precipitation Radar (CAMPR): System Description and Preliminary Results

Hiroshi KUMAGAI  Kenji NAKAMURA  Hiroshi HANADO  Ken'ichi OKAMOTO  Naoki HOSAKA  Noriaki MIYANO  Toshiaki KOZU  Nobuhiro TAKAHASHI  Toshio IGUCHI  Hiroshi MIYAUCHI  

IEICE TRANSACTIONS on Communications   Vol.E79-B    No.6    pp.770-778
Publication Date: 1996/06/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Weather Radar Technology)
rain radar,  airborne radar measurement,  multiparameter radar,  TRMM,  

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A new airborne rain radar named CAMPR (CRL Airborne Multiparameter precipitation Radar) has been developed for the major purpose of calibrating PR (Precipitation Radar) onboard TRMM (Tropical Rainfall Measuring Mission; scheduled to be launched in 1997) in orbit by observing the same rain with both CAMPR and TRMM satellite. CAMPR operates as a coherent radar at 13.8 GHz, the same frequency as TRMM-PR, and has polarimetric and Doppler capabilities. It is installed on a relatively small aircraft and can scan the antenna over a wide angle range, from the nadir to the near-horizon. These functions have been verified to work well and it is shown that the radar system is accurately calibrated. Examples of measurement data show CAMPR's high capability to extract various quantities relating to precipitation and cloud physics. Before the TRMM launch, CAMPR is being used to obtain TRMM-PR simulation data to help its algorithm development as well as to obtain data concerning precipitation and cloud physics.