Construction of a Database of Pi-SAR2 Observation Data by Calibration and Scattering Power Decomposition Using the ABCI Yuya Arima, Toshifumi Moriyama, Yoshio Yamaguchi, Ryosuke Nakamura, Chiaki Tsutsumi and Shoichiro Kojima <Abstract> Pi-SAR2 is an airborne polarimetric synthetic aperture radar operated by the National Institute of Information and Communications Technology. The polarimetric obser