Japan Geoscience Union Meeting 2014

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International Session (Poster)

Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-CG Complex & General

[A-CG06_29PO1] Satellite Earth Environment Observation

Tue. Apr 29, 2014 6:15 PM - 7:30 PM Poster (3F)

Convener:*Oki Riko(Japan Aerospace Exploration Agency), Yoshiaki Honda(Chiba University, Center for Environmental), Kenlo Nishida Nasahara Kenlo(Institute of Agricultural and Forest Engineering, University of Tsukuba), Takashi Nakajima(Tokai University Department of Network and Computer Engineering, School of Information and Design Engineering), Taikan Oki(Institute of Industrial Science, The University of Tokyo), Yokota Tatsuya(Center for Global Environmental Research, National Institute for Environmental Studies), Yukari N. Takayabu(Atmosphere and Ocean Research Institute(AORI), The University of Tokyo), Hiroshi Murakami(Earth Observation Research Center, Japan Aerospace Exploration Agency), Hajime Okamoto(Research Institute for Applied Mechanics,Kyushu University)

6:15 PM - 7:30 PM

[ACG06-P05] NICT Calibration and Validation experiment for DPR/GPM

*Katsuhiro NAKAGAWA1, Hiroshi HANADO1, Seiji KAWAMURA1, Hironori IWAI1, Nobuhiro TAKAHASHI1, Toshio IGUCHI1 (1.National Institute of Information and Communications Technology)

Keywords:GPM, DPR, Beam maching, Ground Validation, PANDA (Phased Array radar Network DAta system), COBRA

The GPM core satellite is scheduled to be launched on February 28, 2014. It carries the Dual-Frequency Precipitation Radar (DPR) developed by Japan Aerospace Exploration Agency (JAXA) and National Institute of Information and Communications Technology (NICT), which consists of two radars: Ku-band precipitation radar (KuPR, 13.6 GHz) and Ka-band radar (KaPR, 35.5 GHz). NICT is planning the GPM/DPR onboard calibration experiment at NICT Koganei. The beam matching of two radars will be evaluated. NICT is also planning the post-launch ground validation (product validation) experiment at two locations, NICT Kobe (NICT Advanced ICT Research Institute) and NICT Okinawa (Okinawa Electromagnetic Technology Center). NICT is developing two X-band phased array radars (PANDA: Phased Array radar Network DAta system) and will install at NICT Kobe and Okinawa. PANDA can scan three-dimensionally in thirty seconds. We can compare the radar directly and simultaneously. At NICT Okinawa, the C-band polarimetric Doppler radar (COBRA) is also installed. The differential reflectivity (ZDR) can be used to validate the rain drop size distribution parameter (D0). The cross-correlation coefficient (ρHV) can be used to validate the melting layer flag. Using the ground-based rain drop size measurements, the two-dimensional Video disdtrometer (2DVD), Joss-type disdrometer, and Laser Optical disdrometr (Parsivel), and so on, the characteristics of DSD itself are analyzed and the k-Z relationship is estimated for evaluation and improvement of the GPM/DPR algorithm.