[S-GD01] Geodesy and Global Geodetic Observing System

Thu. May 28, 2026 3:30 PM - 5:00 PM Exhibition Hall Special Setting (8) (Exhibition Hall 7&8, Makuhari Messe)

Chairperson:Tanaka Yoshiyuki(Earth and Planetary Science, The University of Tokyo), Abe Satoshi(Geospatial Information Authority of Japan)

Geodetic products, such as terrestrial reference frames are essential for accurate positioning and monitoring of the Earth system. Studying of the Earth's processes is enabled through precise measurements of the Earth's shape, gravity, and rotation, as well as their temporal evolutions. In this session, we call for a wide range of contributions related to geodesy and its broader applications to geosciences. Topics of interest include but are not limited to a) recent advances in geodetic measurement techniques; b) data analysis and numerical modeling; and c) theoretical studies of geodesy. This session also welcomes topics of interdisciplinary studies on geoscience using ground (spirit leveling, absolute/relative gravimeter, strain meter and so on) or space-based geodetic techniques (GNSS, VLBI, SLR, DORIS, satellite gravimetry and altimetry). In addition, we also provide a forum for discussing GGOS (Global Geodetic Observing System) related observation programs, advancements of geodetic techniques and collaboration among various organizations worldwide.

+Add all to schedule

3:30 PM - 3:45 PM

[SGD01-13] Contributions of GGOS Japan to fundamental and emerging fields in the geodetic community

*Yusuke Yokota¹, Basara Miyahara², Masafumi Ishigaki², Shun-ichi Watanabe³, Takehiro Matsumoto⁴, Keitaro Ohno², Yuichi Aoyama⁵, Koji Matsuo², Toshimichi Otsubo⁶ (1. Institute of Industrial Science, The University of Tokyo, 2. Geospatial Authority of Japan, 3. Hydrographic and Oceanographic Department, Japan Coast Guard, 4. JAXA, 5. National Institute of Polar Research, 6. Hitotsubashi University)

3:45 PM - 4:00 PM

[SGD01-14] Release of New GEONET Daily Coordinates

*Satoshi Abe¹, Mayumi Hashimoto¹, Keitaro Ohno¹, Riku Yamamoto¹, Takayuki Miyazaki¹, Masanori Yokokawa¹ (1. Geospatial Information Authority of Japan)

4:00 PM - 4:15 PM

[SGD01-15] Development of Lifting and Transporting Equipment for Field Observation Using a Laser-interferometric Gravity-gradiometer

*Katsumata Kanta¹ (1. national university corporation Gunma university)

4:15 PM - 4:30 PM

[SGD01-16] Prospects for observing Earth dynamics with optical lattice clocks: ground and space applications

*Yoshiyuki Tanaka¹, Takaaki Jike², Yoshiaki Tamura⁸, Yosuke Aoki³, Ryuichi Ichikawa⁴, Hiroshi Takiguchi⁵, Ichiro Ushijima⁶, Masao Takamoto⁷, Hidetoshi Katori^7,6 (1. Department of Earth and Planetary Science, The University of Tokyo, 2. Mizusawa VLBI Observatory, NAOJ, 3. Earthquake Research Institute, The University of Tokyo, 4. NICT, 5. JAXA, 6. Department of Applied Physics, The University of Tokyo, 7. Space-Time Engineering Research Team, RIKEN, 8. Iwate Industrial Technology Junior College)

4:30 PM - 4:45 PM

[SGD01-17] A Compact, Low-Cost, and Multi-Purpose SLR System Omni-SLR: Test Observations and System Development at Ishioka

*Toshimichi Otsubo¹, Hiroshi Araki², Yusuke Yokota³, Kenji Kouno³, Mihoko Kobayashi¹, Yusuke Nakamura³, Akihisa Hattori⁴, Yuichi Aoyama⁴, Junichi Nakajima⁵, Shino Araki⁶, Haruna Furui⁶, Takahiro Wakasugi⁶ (1. Hitotsubashi University, 2. National Astronomical Observatory, 3. Institute of Industrial Science, the University of Tokyo, 4. National Institute of Polar Research, 5. Softbank Corp., 6. Geospatial Information Authority of Japan)

4:45 PM - 5:00 PM

[SGD01-18] Compact, Low-cost, Multi-purpose SLR System Omni-SLR: Time Comparison via Optical Pulse Transmission between Two Stations

*Yusuke Nakamura¹, Yusuke Yokota², Kenji Kouno², Toshimichi Otsubo³, Mihoko Kobayashi³, Hiroshi Araki⁴, Junichi Nakajima⁵ (1. Graduate School of Frontier Sciences The University of Tokyo, 2. Institute of Industrial Science, the University of Tokyo, 3. Hitotsubashi University, 4. National Astronomical Observatory of Japan, 5. SoftBank Corp.)

Session information