| 2022 | IGARSS | Enhancing Precipitation Monitoring Using GPM Products: Integration with Ground-Based Radars. | Takuji Kubota, Yoichi Saito, Kinji Furukawa, Moeka Yamaji, Riko Oki |
| 2020 | IGARSS | Evaluation of Cloud Liquid Water Database Using Global CloudSystem Resolving Model for GPM/DPR Algorithms. | Takuji Kubota, Masaki Satoh, Takeshi Masaki, Toshio Iguchi, Shinta Seto, Tomoe Nasuno, Riko Oki |
| 2019 | IGARSS | Precipitation Extremes Monitoring Using Global Satellite Mapping of Precipitation (GSMaP) Products. | Tomoko Tashima, Takuji Kubota, Riko Oki |
| 2019 | IGARSS | Observing System Simulation Experiment on The Accuracy of Global Satellite Mapping of Precipitation (GSMAP) by Future Small Precipitation Radar Constellation. | Moeka Yamaji, Takuji Kubota, Riko Oki |
| 2018 | IGARSS | Scan Pattern Change Test Operations of the Dual-Frequency Precipitation Radar on the Global Precipitation Measurement Core Spacecraft. | Kinji Furukawa, Kosuke Yamamoto, Takuji Kubota, Riko Oki, Toshio Iguchi |
| 2018 | IGARSS | Development of A Statistical Method for Reducing Sidelobe Clutter in High Sensitivity Mode of GPM/Kapr. | Takuji Kubota, Toshio Iguchi, Takeshi Masaki, Naofumi Yoshida, Riko Oki |
| 2017 | IGARSS | Prime mission results of the dual-frequency precipitation radar on the global precipitation measurement core spacecraft. | Kinji Furukawa, Tomomi Nio, Riko Oki, Takuji Kubota, Toshio Iguchi |
| 2017 | IGARSS | Study on measurement performance of future space-based Doppler wind lidar in Japan. | Shoken Ishii, Kozo Okamoto, Philippe Baron, Toshiyuki Ishibashi, Taichu Tanaka, Tsuyoshi Sekiyama, Takashi Maki, Takuji Kubota, Yohei Satoh, Daisuke Sakaizawa, Koji Yamashita, Kyoka Gamo, Satoshi Ochiai, Motoaki Yasui, Riko Oki, Masaki Satoh, Toshiki Iwasaki |
| 2017 | IGARSS | Recent progress in global satellite mapping of precipitation (GSMAP) product. | Takuji Kubota, Kazumasa Aonashi, Tomoo Ushio, Shoichi Shige, Yukari N. Takayabu, Yoriko Arai, Tomoko Tashima, Misako Kachi, Riko Oki |
| 2016 | IGARSS | Microphysical features of solid/melting particles by Ground-based direct observations for the GPM/DPR algorithm development. | Kenji Suzuki, Katsuhiro Nakagawa, Yuki Kaneko, Riko Oki, Kenji Nakamura |
| 2016 | IGARSS | Precipitation rates estimated with GPM's Dual-frequency Radar. | Toshio Iguchi, Shinta Seto, Jun Awaka, Robert Meneghini, Takuji Kubota, V. Chandra, Naofumi Yoshida, Nozomi Kawamoto, Riko Oki |
| 2016 | IGARSS | Recent advances of the TRMM PR beam-mismatch correction after the orbit boost. | Kaya Kanemaru, Takuji Kubota, Takeshi Masaki, Riko Oki, Kinji Furukawa, Toshio Iguchi, Hiroshi Hanado, Naofumi Yoshida |
| 2015 | IGARSS | The orbital operations status of the dual-frequency precipitation radar on the global precipitation measurement core spacecraft. | Kinji Furukawa, Masahiro Kojima, Tomomi Nio, Toshiyuki Konishi, Riko Oki, Takeshi Masaki, Takuji Kubota, Yuki Kaneko, Misako Kachi, Toshio Iguchi, Hiroshi Hanado, Katsuhiro Nakagawa |
| 2015 | IGARSS | A decadal variability of semi-global precipitation by TRMM PR. | Kaya Kanemaru, Takuji Kubota, Misako Kachi, Riko Oki, Toshio Iguchi, Yukari N. Takayabu |
| 2015 | IGARSS | Development of a routine to reduce sidelobe clutter in GPM/KUPR-L2 algorithm. | Takuji Kubota, Takeshi Masaki, Toshio Iguchi, Shinji Urita, Naofumi Yoshida, Hiroshi Hanado, Riko Oki |
| 2015 | IGARSS | Current status of GPM/DPR level 1 algorithm development and DPR calibration. | Takeshi Masaki, Takuji Kubota, Riko Oki, Kinji Furukawa, Masahiro Kojima, Takeshi Miura, Toshio Iguchi, Hiroshi Hanado, Hiroki Kai, Naofumi Yoshida, Tomohiko Higashiuwatoko |
| 2014 | IGARSS | Recent improvements in the global satellite mapping of precipitation (GSMaP). | Misako Kachi, Takuji Kubota, Kazumasa Aonashi, Tomoo Ushio, Shoichi Shige, Munehisa Yamamoto, Tomoaki Mega, Riko Oki |
| 2014 | IGARSS | Development of level 1 algorithm of Dual Frequency Precipitation Radar (DPR) for the Global Precipitation Measurement (GPM). | Takeshi Masaki, Takuji Kubota, Riko Oki, Masahiro Kojima, Kinji Furukawa, Takeshi Miura, Hiroki Kai, Toshio Iguchi, Hiroshi Hanado, Naofumi Yoshida, Tomohiko Higashiuwatoko |
| 2013 | IGARSS | Reduction of discontinuity due to the orbit boost in TRMM Precipitation Radar product for climate studies. | Satoshi Kida, Takuji Kubota, Misako Kachi, Riko Oki, Toshio Iguchi, Yukari N. Takayabu |
| 2013 | IGARSS | Development of synthetic GPM/DPR data from TRMM/PR and evaluation of GPM/DPR level-2 "at-launch" algorithms using them. | Takuji Kubota, Naofumi Yoshida, Shinji Urita, Toshio Iguchi, Shinta Seto, Jun Awaka, Hiroshi Hanado, Satoshi Kida, Riko Oki |
| 2012 | IGARSS | Development of precipitation retrieval algorithm over land for a satellite-borne microwave sounder. | Satoshi Kida, Takuji Kubota, Misako Kachi, Shoichi Shige, Riko Oki |
| 2012 | IGARSS | Development of cloud liquid water database using global cloud-system resolving model for GPM/DPR algorithm. | Takuji Kubota, Masaki Satoh, Tomoe Nasuno, Shinta Seto, Toshio Iguchi, Riko Oki |
| 2011 | IGARSS | Comparison between TRMM/PR and AMeDAS ground rain gauge network in terms of annual rainfall. | Nozomi Kawamoto, Riko Oki, Shuji Shimizu |
| 2011 | IGARSS | Development of synthetic GPM/DPR data using KaPR sampling experiment of the TRMM/PR. | Takuji Kubota, Naofumi Yoshida, Shuji Shimizu, Riko Oki, Hiroshi Hanado, Toshio Iguchi |
| 2010 | IGARSS | Development of spaceborne radar simulator by NICT and JAXA using JMA cloud-resolving model. | Takuji Kubota, Hisaki Eito, Kazumasa Aonashi, Akihiro Hashimoto, Toshio Iguchi, Hiroshi Hanado, Shuji Shimizu, Naofumi Yoshida, Riko Oki |
| 2009 | IGARSS | A Long-term Trend Observed in TRMM/PR Monthly Rainfall Products and an Evaluation of Sampling Error by a Bootstrap Method. | Yasuhisa Iida, Takuji Kubota, Toshio Iguchi, Riko Oki |
| 2008 | IGARSS | Evaluation of the Effect of the Orbit Boost of the TRMM Satellite on the PR Rain Estimates. | Shuji Shimizu, Toshio Iguchi, Riko Oki, Masafumi Hirose, Tetsuya Tagawa |
| 2008 | IGARSS | Derivation of sub-footprint scale /Spl sigma/ | Tetsuya Tagawa, Shuji Shimizu, Riko Oki |
| 2007 | IGARSS | Modification of the beam mismatch correction algorithm. | Tetsuya Tagawa, Shuji Shimizu, Riko Oki |
| 2006 | IGARSS | Development and Validation of Spaceborne Dualfrequency Precipitation Radar for GPM. | Shuji Shimizu, Riko Oki, Misako Kachi, Masahiro Kojima, Toshio Iguchi, Kenji Nakamura |
| 2005 | IGARSS | Sampling simulation for estimating the sampling error of space-time average rain rate for TRMM and GPM mission. | Yasuhisa Iida, Ken'ichi Okamoto, Tomoo Ushio, Riko Oki |
| 2003 | IGARSS | Japan's progress for the global precipitation measurement (GPM). | Kenji Nakamura, Toshio Iguchi, Riko Oki |