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Riko Oki
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2020 – today
- 2022
- [j8]Yuichiro Hagihara, Yuichi Ohno, Hiroaki Horie, Woosub Roh, Masaki Satoh, Takuji Kubota, Riko Oki:
Assessments of Doppler Velocity Errors of EarthCARE Cloud Profiling Radar Using Global Cloud System Resolving Simulations: Effects of Doppler Broadening and Folding. IEEE Trans. Geosci. Remote. Sens. 60: 1-9 (2022) - [j7]Takeshi Masaki, Toshio Iguchi, Kaya Kanemaru, Kinji Furukawa, Naofumi Yoshida, Takuji Kubota, Riko Oki:
Calibration of the Dual-Frequency Precipitation Radar Onboard the Global Precipitation Measurement Core Observatory. IEEE Trans. Geosci. Remote. Sens. 60: 1-16 (2022) - [c32]Takuji Kubota, Yoichi Saito, Kinji Furukawa, Moeka Yamaji, Riko Oki:
Enhancing Precipitation Monitoring Using GPM Products: Integration with Ground-Based Radars. IGARSS 2022: 5248-5251 - 2020
- [j6]Tomoko Tashima, Takuji Kubota, Tomoaki Mega, Tomoo Ushio, Riko Oki:
Precipitation Extremes Monitoring Using the Near-Real-Time GSMaP Product. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 13: 5640-5651 (2020) - [c31]Takuji Kubota, Masaki Satoh, Takeshi Masaki, Toshio Iguchi, Shinta Seto, Tomoe Nasuno, Riko Oki:
Evaluation of Cloud Liquid Water Database Using Global CloudSystem Resolving Model for GPM/DPR Algorithms. IGARSS 2020: 3600-3603
2010 – 2019
- 2019
- [j5]Tomoaki Mega, Tomoo Ushio, Takahiro Matsuda, Takuji Kubota, Misako Kachi, Riko Oki:
Gauge-Adjusted Global Satellite Mapping of Precipitation. IEEE Trans. Geosci. Remote. Sens. 57(4): 1928-1935 (2019) - [c30]Tomoko Tashima, Takuji Kubota, Riko Oki:
Precipitation Extremes Monitoring Using Global Satellite Mapping of Precipitation (GSMaP) Products. IGARSS 2019: 4463-4466 - [c29]Moeka Yamaji, Takuji Kubota, Riko Oki:
Observing System Simulation Experiment on The Accuracy of Global Satellite Mapping of Precipitation (GSMAP) by Future Small Precipitation Radar Constellation. IGARSS 2019: 7594-7597 - 2018
- [c28]Kinji Furukawa, Kosuke Yamamoto, Takuji Kubota, Riko Oki, Toshio Iguchi:
Scan Pattern Change Test Operations of the Dual-Frequency Precipitation Radar on the Global Precipitation Measurement Core Spacecraft. IGARSS 2018: 8331-8334 - [c27]Takuji Kubota, Toshio Iguchi, Takeshi Masaki, Naofumi Yoshida, Riko Oki:
Development of A Statistical Method for Reducing Sidelobe Clutter in High Sensitivity Mode of GPM/Kapr. IGARSS 2018: 8347-8348 - 2017
- [c26]Kinji Furukawa, Tomomi Nio, Riko Oki, Takuji Kubota, Toshio Iguchi:
Prime mission results of the dual-frequency precipitation radar on the global precipitation measurement core spacecraft. IGARSS 2017: 2708-2711 - [c25]Takuji Kubota, Kazumasa Aonashi, Tomoo Ushio, Shoichi Shige, Yukari N. Takayabu, Yoriko Arai, Tomoko Tashima, Misako Kachi, Riko Oki:
Recent progress in global satellite mapping of precipitation (GSMAP) product. IGARSS 2017: 2712-2715 - [c24]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:
Study on measurement performance of future space-based Doppler wind lidar in Japan. IGARSS 2017: 4238-4245 - 2016
- [j4]Masanori Nishikawa, Kenji Nakamura, Yasushi Fujiyoshi, Katsuhiro Nakagawa, Hiroshi Hanado, Haruya Minda, Sento Nakai, Toshiro Kumakura, Riko Oki:
Radar Attenuation and Reflectivity Measurements of Snow With Dual Ka-Band Radar. IEEE Trans. Geosci. Remote. Sens. 54(2): 714-722 (2016) - [j3]Nobuhiro Takahashi, Hiroshi Hanado, Kenji Nakamura, Kaya Kanemaru, Katsuhiro Nakagawa, Toshio Iguchi, Tomomi Nio, Takuji Kubota, Riko Oki, Naofumi Yoshida:
Overview of the End-of-Mission Observation Experiments of Precipitation Radar Onboard the Tropical Rainfall Measuring Mission Satellite. IEEE Trans. Geosci. Remote. Sens. 54(6): 3450-3459 (2016) - [c23]Toshio Iguchi, Shinta Seto, Jun Awaka, Robert Meneghini, Takuji Kubota, V. Chandra, Naofumi Yoshida, Nozomi Kawamoto, Riko Oki:
Precipitation rates estimated with GPM's Dual-frequency Radar. IGARSS 2016: 3917-3918 - [c22]Kaya Kanemaru, Takuji Kubota, Takeshi Masaki, Riko Oki, Kinji Furukawa, Toshio Iguchi, Hiroshi Hanado, Naofumi Yoshida:
Recent advances of the TRMM PR beam-mismatch correction after the orbit boost. IGARSS 2016: 3934-3937 - [c21]Kenji Suzuki, Katsuhiro Nakagawa, Yuki Kaneko, Riko Oki, Kenji Nakamura:
Microphysical features of solid/melting particles by Ground-based direct observations for the GPM/DPR algorithm development. IGARSS 2016: 3941-3944 - 2015
- [c20]Takeshi Masaki, Takuji Kubota, Riko Oki, Kinji Furukawa, Masahiro Kojima, Takeshi Miura, Toshio Iguchi, Hiroshi Hanado, Hiroki Kai, Naofumi Yoshida, Tomohiko Higashiuwatoko:
Current status of GPM/DPR level 1 algorithm development and DPR calibration. IGARSS 2015: 2615-2618 - [c19]Kaya Kanemaru, Takuji Kubota, Misako Kachi, Riko Oki, Toshio Iguchi, Yukari N. Takayabu:
A decadal variability of semi-global precipitation by TRMM PR. IGARSS 2015: 5127-5130 - [c18]Kinji Furukawa, Masahiro Kojima, Tomomi Nio, Toshiyuki Konishi, Riko Oki, Takeshi Masaki, Takuji Kubota, Yuki Kaneko, Misako Kachi, Toshio Iguchi, Hiroshi Hanado, Katsuhiro Nakagawa:
The orbital operations status of the dual-frequency precipitation radar on the global precipitation measurement core spacecraft. IGARSS 2015: 5154-5157 - [c17]Takuji Kubota, Takeshi Masaki, Toshio Iguchi, Shinji Urita, Naofumi Yoshida, Hiroshi Hanado, Riko Oki:
Development of a routine to reduce sidelobe clutter in GPM/KUPR-L2 algorithm. IGARSS 2015: 5166-5169 - 2014
- [j2]Takuji Kubota, Naofumi Yoshida, Shinji Urita, Toshio Iguchi, Shinta Seto, Robert Meneghini, Jun Awaka, Hiroshi Hanado, Satoshi Kida, Riko Oki:
Evaluation of Precipitation Estimates by at-Launch Codes of GPM/DPR Algorithms Using Synthetic Data from TRMM/PR Observations. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 7(9): 3931-3944 (2014) - [c16]Misako Kachi, Takuji Kubota, Kazumasa Aonashi, Tomoo Ushio, Shoichi Shige, Munehisa Yamamoto, Tomoaki Mega, Riko Oki:
Recent improvements in the global satellite mapping of precipitation (GSMaP). IGARSS 2014: 3762-3765 - [c15]Takeshi Masaki, Takuji Kubota, Riko Oki, Masahiro Kojima, Kinji Furukawa, Takeshi Miura, Hiroki Kai, Toshio Iguchi, Hiroshi Hanado, Naofumi Yoshida, Tomohiko Higashiuwatoko:
Development of level 1 algorithm of Dual Frequency Precipitation Radar (DPR) for the Global Precipitation Measurement (GPM). IGARSS 2014: 4962-4965 - 2013
- [c14]Satoshi Kida, Takuji Kubota, Misako Kachi, Riko Oki, Toshio Iguchi, Yukari N. Takayabu:
Reduction of discontinuity due to the orbit boost in TRMM Precipitation Radar product for climate studies. IGARSS 2013: 644-647 - [c13]Takuji Kubota, Naofumi Yoshida, Shinji Urita, Toshio Iguchi, Shinta Seto, Jun Awaka, Hiroshi Hanado, Satoshi Kida, Riko Oki:
Development of synthetic GPM/DPR data from TRMM/PR and evaluation of GPM/DPR level-2 "at-launch" algorithms using them. IGARSS 2013: 648-651 - 2012
- [c12]Satoshi Kida, Takuji Kubota, Misako Kachi, Shoichi Shige, Riko Oki:
Development of precipitation retrieval algorithm over land for a satellite-borne microwave sounder. IGARSS 2012: 342-345 - [c11]Takuji Kubota, Masaki Satoh, Tomoe Nasuno, Shinta Seto, Toshio Iguchi, Riko Oki:
Development of cloud liquid water database using global cloud-system resolving model for GPM/DPR algorithm. IGARSS 2012: 350-353 - 2011
- [c10]Nozomi Kawamoto, Riko Oki, Shuji Shimizu:
Comparison between TRMM/PR and AMeDAS ground rain gauge network in terms of annual rainfall. IGARSS 2011: 2590-2593 - [c9]Takuji Kubota, Naofumi Yoshida, Shuji Shimizu, Riko Oki, Hiroshi Hanado, Toshio Iguchi:
Development of synthetic GPM/DPR data using KaPR sampling experiment of the TRMM/PR. IGARSS 2011: 3421-3424 - 2010
- [c8]Takuji Kubota, Hisaki Eito, Kazumasa Aonashi, Akihiro Hashimoto, Toshio Iguchi, Hiroshi Hanado, Shuji Shimizu, Naofumi Yoshida, Riko Oki:
Development of spaceborne radar simulator by NICT and JAXA using JMA cloud-resolving model. IGARSS 2010: 1304-1307
2000 – 2009
- 2009
- [j1]Tetsuya Tagawa, Hiroshi Hanado, Shuji Shimizu, Riko Oki:
Improved Correction of Beam Mismatch of the Precipitation Radar After Orbit Boost of the TRMM Satellite. IEEE Trans. Geosci. Remote. Sens. 47(10): 3469-3479 (2009) - [c7]Yasuhisa Iida, Takuji Kubota, Toshio Iguchi, Riko Oki:
A Long-term Trend Observed in TRMM/PR Monthly Rainfall Products and an Evaluation of Sampling Error by a Bootstrap Method. IGARSS (1) 2009: 216-219 - 2008
- [c6]Shuji Shimizu, Toshio Iguchi, Riko Oki, Masafumi Hirose, Tetsuya Tagawa:
Evaluation of the Effect of the Orbit Boost of the TRMM Satellite on the PR Rain Estimates. IGARSS (4) 2008: 133-136 - [c5]Tetsuya Tagawa, Shuji Shimizu, Riko Oki:
Derivation of sub-footprint scale /Spl sigma/0 observed by TRMM Precipitation Radar. IGARSS (4) 2008: 137-140 - 2007
- [c4]Tetsuya Tagawa, Shuji Shimizu, Riko Oki:
Modification of the beam mismatch correction algorithm. IGARSS 2007: 3920-3922 - 2006
- [c3]Shuji Shimizu, Riko Oki, Misako Kachi, Masahiro Kojima, Toshio Iguchi, Kenji Nakamura:
Development and Validation of Spaceborne Dualfrequency Precipitation Radar for GPM. IGARSS 2006: 29-31 - 2005
- [c2]Yasuhisa Iida, Ken'ichi Okamoto, Tomoo Ushio, Riko Oki:
Sampling simulation for estimating the sampling error of space-time average rain rate for TRMM and GPM mission. IGARSS 2005: 4 - 2003
- [c1]Kenji Nakamura, Toshio Iguchi, Riko Oki:
Japan's progress for the global precipitation measurement (GPM). IGARSS 2003: 1695-1697
Coauthor Index
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