| 2023 | IGARSS | Long-Term Observation of the Soya Warm Current Combining HF Ocean Radars with Coastal Tide Gauges and Satellite Altimetry. | Naoto Ebuchi, Yasushi Fukamachi, Kay I. Ohshima, Toru Takatsuka, Humio Mitsudera, Jun Nishioka, Kazuya Ono, Masao Ishikawa, Takaharu Daibo, K. Shiwasawa, Masaaki Wakatsuchi |
| 2010 | IGARSS | Propagation of subinertial variations in the Soya Warm Current revealed by HF ocean radars. | Naoto Ebuchi, Yasushi Fukamachi, Kay I. Ohshima |
| 2008 | IGARSS | Subinertial Variations in the Soya Warm Current Revealed by HF Ocean Radars, Coastal Tide Gauges, and Bottom-Mounted ADCP. | Naoto Ebuchi, Yasushi Fukamachi, Kay I. Ohshima, Masaaki Wakatsuchi |
| 2007 | IGARSS | Retrieval of ice thickness distribution in the seasonal ice zone from L-band SAR. | Takenobu Toyota, Kay I. Ohshima, Naoto Ebuchi, Kazuki Nakamura, Shotaro Uto |
| 2006 | IGARSS | Observation of the Soya Warm Current Combining HF Ocean Radar with Coastal Tide Gauges and Satellite Altimetry. | Naoto Ebuchi, Yasushi Fukamachi, Kay I. Ohshima, Kunio Shirasawa, Masaaki Wakatsuchi |
| 2005 | IGARSS | Detection of coastal polynyas and ice production in the antarctic and okhotsk seas from SSM/I. | Kay I. Ohshima, Sohey Nihashi, Takeshi Tamura |
| 2004 | IGARSS | Observation of the Soya warm current using HF ocean radar. | Pierre Ebuchi, Yasushi Fukamachi, Kay I. Ohshima, Kunio Shirasawa, Masao Ishikawa, Toru Takatsuka, Takaharu Daibo, Masaaki Wakatsuchi |