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Space Geodesy Research


  • American Geophysical Union fall meeting 2017 (AGU 2017) (Dec. 2017)
    • Continuous monitoring of a magma chamber’s pressure changes using geodetic data: Time-dependent inversion with Ensemble Kalman Filter (EnKF) [Abstract(PDF)]
    • An improved gravimetric geoid model for Japan based on the Stokes-Helmert scheme with a deterministically modified Stokes’ kernel [Abstract(PDF)]
  • International Symposium on Polar Ice, Polar Climate, Polar Change: Remote sensing advances in understanding the cryosphere (international glaciological society) (Aug. 2017)
    • Detection of quadratic ice mass variations in Greenland by ICEsat laser altimetry [Abstract(PDF)]
  • Joint scientific Assembly of the International Association of Geodesy and the Internationl Association of Seismology and Physics of the Earth's Interior (IAG-IASPEI 2017) (Jul.-Aug. 2017)
    • A prototype system for PPP kinematic positioning of Japanese GEONET stations [Abstract(PDF)]
    • An improved gravimetric geoid model for Japan based on the Stokes-Helmert scheme with a deterministically modified Stokes’ kernel [Abstract(PDF)]
    • SLR monthly gravity solutions using the C5++ software [Abstract(PDF)]
    • Estimation of PostSeismic Deformation Model Using Monte Carlo Method [Abstract(PDF)]

Researchers (FY2018)

  • MIYAHARA, Basara : Director of Division
  • NAKAGAWA, Hiroyuki : Chief Researcher
  • KOKADO, Kensuke : Chief Researcher
  • MORISHITA, Yu : Chief Researcher
  • MATSUO, Koji : Researcher

Research Projects

  • Research on the development of rapid and accurate GNSS routine analysis system (2017-2019)
  • Establishment of a Japanese height reference system based on a precise gravimetric geoid model (2016-2018)
  • Development of a real-time crustal deformation monitoring system using Precise Point Positioning RTK (PPP-RTK) (2015-2017)

Recent Papers

  • Munekane, H. (2018): A GNSS Kinematic Analysis System for Japanese GEONET, J. Disaster Res., in press.
  • Kawamoto, S., Y. Ohta, Y. Hiyama, M. Todoriki, T. Nishimura, T. Furuya, Y. Sato, T. Yahagi, K. Miyagawa (2017): REGARD: A new GNSS-based real-time finite fault modeling system for GEONET, J. Geophys. Res., DOI:10.1002/2016JB013485. [→LINK]
  • Kawamoto, S., Y. Hiyama, Y. Ohta, and T. Nishimura (2016): First result from the GEONET real-time analysis system (REGARD): the case of the 2016 Kumamoto earthquakes, Earth, Planets and Space, 68:190, DOI 10.1186/s40623-016-0564-4. [→LINK]
  • Takano, T., M. Takamoto, I. Ushijima, N. Ohmae, T. Akatsuka, A. Yamaguchi, Y. Kuroishi, H. Munekane, B. Miyahara, and H. Katori (2016): Geopotential measurements with synchronously linked optical lattice clocks, Nature Photonics, 662-666, doi:10.1038/nphoton.2016.159. [→LINK]
  • Kawamoto, S., B. Miyahara, Y. Ohta, T. Nishimura, M. Todoriki (2016): Real-Time GNSS Positioning System REGARD for Rapid Earthquake Moment Estimates, proceedings of FIG Working Week 2016. [→Full text (pdf 1.73MB)]
  • Matsuo, K., T. Miyazaki, B. Miyahara, Y. Kuroishi (2016): Development of a New Gravitational Geoid Model for Japan, proceedings of FIG Working Week 2016. [→Full text (pdf 1.10MB)]
  • Munekane, H., J. Oikawa, and T. Kobayashi (2016): Mechanisms of step-like tilt changes and very long period seismic signals during the 2000 Miyakejima eruption: Insights from Kinematic GPS, J. Geophys. Res., doi:10.1002/2016JB012795. [→LINK]
  • Tobita, M. (2016): Combined logarithmic and exponential function model for fitting postseismic GNSS time series after 2011 Tohoku-Oki earthquake, Earth Planets and Space, 68:41, doi:10.1186/s40623-016-0422-4. [→LINK]
  • Kawamoto, S., Miyagawa, K., Yahagi, T., Todoriki, M., Nishimura, T., Ohta, Y., Hino, R., Miura, S. (2015): Development and Assessment of Real-Time Fault Model Estimation Routines in the GEONET Real-Time Processing System, International Association of Geodesy Symposia 2015, Springer, doi:10.1007/1345_2015_49.
  • Munekane, H. (2013): Sub-daily noise in horizontal GPS kinematic time series due to thermal tilt of GPS monuments, Journal of Geodesy, Volume 87, Issue 4, 393-401.
  • Kuroishi, Y. (2013): Comparison of Latest Global and Regional Gravimetric Geoid Models with GPS/leveling Geoidal Undulations over Japan, International Association of Geodesy Symposia 138, Reference Frames for Applications in Geosciences, Springer, 221-227.

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