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TOPICS
FY2024
- Japan Geoscience Union Meeting 2024 (JpGU 2024) (May 2024)
- Consistency between multi-GNSS PPP solutions and F5 solutions and among multi-GNSS PPP solutions from different analysis methods
- Geoid changes in and around Japan
- Development and test observation of compact and small GNSS observation instrument
- Detection and correction of phase unwrapping error for more efficient InSAR time series analysis
- Seismological Society of America Annual Meeting 2024 (May, 2024)
- Geodetically estimated ground displacement and fault motions of the 2024 Noto Peninsula Earthquake【Invited】[→LINK]NEW!!
FY2023
- Coastline change caused by the 2024 Noto Peninsula Earthquake detected by ALOS-2 SAR satellite image (Jan., 2024) [→LINK]
- The Joint PI Meeting of JAXA Earth Observation Missions FY2023(Nov.2023)
- Nationwide land deformation monitoring: application of InSAR time series analysis to Japan
- The 2023 Seismological Society of Japan Fall Meeting(Oct. 2023)
- Detailed fault ruptures for the 2023 Turkey-Syria earthquake revealed by SAR-based crustal deformation analysis
- 140th Meeting of the Geodetic Society of Japan(Oct. 2023)
- 28th International Union of Geodesy and Geophysics General Assembly(IUGG2023)(July 2023)
- Nationwide land deformation monitoring: application of InSAR time series analysis to Japan[Abstract (PDF)]
- Gravimetric geoid determination of Japan using nationwide airborne gravity data[Abstract (PDF)]
- Japan Geoscience Union Meeting 2023 (JpGU 2023) (May 2023)
- Detailed fault ruptures for the 2023 Turkey earthquake revealed by SAR-based crustal deformation analysis [Abstract (PDF)]
- The consistency between the GEONET routine solution and the multi-GNSS PPP solution[Abstract (PDF)]
- Investigation of interpolation method for estimation of Surface Deformation model[Abstract (PDF)]
- A precise gravimetric geoid model for Japan that incorporates the airborne gravity data over the four main islands[Abstract (PDF)]
FY2022
- The Second Asia Pacific geoid workshop for IAG-SC2.4e (Oct. 2022)
- The Thirteenth Joint Meeting of the U.S.-Japan Panel on Earthquake Research (UJNR) (Sep. 2022)
- Research on relationship between fault rupture propagation and crustal structure of volcano area: case study of the 2016 Kumamoto Earthquake[Abstract (PDF)]
- Japan Geoscience Union Meeting 2022 (JpGU 2022) (May-June 2022)
- An attempt to improve coastal geoid determination by introducing airborne gravity data and a marine residual terrain model [Abstract (PDF)]
- Impact of introducing LEO satellite tracking data on SLR-based gravity field determination [Abstract (PDF)]
- Investigation of Crustal Deformation model using daily coordinates of GNSS CORS [Abstract (PDF)]
- Achievements of ground deformation monitoring using ALOS satellite series at GSI and the way forward [Abstract (PDF)]
- Spatial relation between fault motions and density structures at the terminus of fault rupture for the 2016 Kumamoto earthquake [Abstract (PDF)]
FY2021
- American Geophysical Union fall meeting 2021 (AGU 2021) (Dec. 2021)
- What controlled the fault ruptures in the final stage?: A comparison of SAR-derived fault slips with gravity-inferred density structures for the 2016 Kumamoto earthquake in Japan [Abstract (PDF)]
- Effect of lateral topographic density variations on subsurface structure estimation by gravity inversion – a case study in Aso Caldera, Japan [Abstract (PDF)]
- Scientific Assembly of the International Association of Geodesy (IAG 2021) (June-Jul. 2021)
- Examining the optimal depth of the condensed topographic masses for precise geoid determination based on the Stokes-Helmert scheme – A case study in Colorado [Abstract (PDF)]
- Japan Geoscience Union Meeting 2021 (JpGU 2021) (May-June 2021)
- Development of coordinate calculation strategy for GEONET station using multi GNSS PPP aiming future management scheme of the national coordinate [Abstract (PDF)]
- Evaluation Performance of QZSS Centimeter Level Augmentation Service (CLAS) with long-term field observations [Abstract (PDF)]
- Discussion of the colour map for SAR interferograms [Abstract (PDF)]
- Accuracy evaluation of airborne gravity data by three-dimensional least-squares collocation method [Abstract (PDF)]
Researchers (FY2024)
- KOBAYASHI, Tomokazu : Director of Division
- NAKAGAWA, Hiroyuki : Chief Researcher
- MATSUO, Koji : Chief Researcher
- HATTORI, Akihisa : Researcher
Research Projects
- Research on development of advanced space geodetic techniques for realizing the disaster resilient National Geodetic Reference Frame (2020-2024)
Recent Papers
FY2023
- Matsumoto, S., McCallum, L., McCallum, J., Jaradat, A., Ishigak, M., yoshifuji, H., Kobayashi, T. (2023): The Australia-Japan VGOS observation, Proceedings of the 26th European VLBI Group for Geodesy and Astrometry Working Meeting, edited by Rudiger Haas, Eva Schroth, Alexander Neidhardt, 121–124. https://doi.orj/10.14459/2023md1730292
- Kobayashi T., Munekane, H., Kuwahara, M., Furui, H. (2023): Insights on the 2023 Kahramanmaraş Earthquake, Turkey, from InSAR: fault locations, rupture styles and induced deformation, Geophysical Journal International, 236, (2), 1068–1088. https://doi.org/10.1093/gji/ggad464
- Matsumoto, S., Nakakuki, T., Yutsudo, T., Ueshiba, H., Takagi, Y., Hayashi, K., Mori, K., Sato, Y., Kobayashi, T. (2023): Status of the Ishioka VLBI Station for the Past Two Years, International VLBI Service for Geodesy and Astrometry 2022 General Meeting Proceedings, NASA/CP-20220018789, pp56-58. [→LINK]
FY2022
- Matsumoto, S., Ueshiba, H., Nakakuki, T., Takagi, Y., Hayashi, K., Yutsudo, T., Mori, K., Sato, Y., Kobayashi, T. (2022): An effective approach for accurate estimation of VLBI–GNSS local-tie vectors, Earth, Planets and Space, 74, 147. https://doi.org/10.1186/s40623-022-01703-5
- Morishita, Y. (2022): Effective unwrapping of complicated phases by exploiting multiple interferograms: a case study of the 2016 Kumamoto earthquake, Earth Planets Space, 74, 33. https://doi.org/10.1186/s40623-022-01595-5
- Morishita, Y., Kobayashi, T. (2022): Three-dimensional deformation and its uncertainty derived by integrating multiple SAR data analysis methods, Earth Planets Space, 74, 16. https://doi.org/10.1186/s40623-022-01571-z
FY2021
- Wang, YM., Sánchez, L., Ågren, J., Huang, J., Forsberg, R., ..., Matsuo, K., et al. (2021): Colorado geoid computation experiment: overview and summary, Journal of Geodesy, 95, 127. https://doi.org/10.1007/s00190-021-01567-9
- Morishita, Y. (2021): Nationwide urban ground deformation monitoring in Japan using Sentinel-1 LiCSAR products and LiCSBAS, Prog. Earth Planet. Sci., 8, 6. https://doi.org/10.1186/s40645-020-00402-7
FY2020
- Takamoto, M., Ushijima, I., Ohmae, N., Yahagi, T., Kokado, K., Shinkai, H., Katori, H. (2020): Test of general relativity by a pair of transportable optical lattice clocks, Nat. Photonics, 14, 411–415. https://doi.org/10.1038/s41566-020-0619-8
- Matsuo, K., Kuroishi, Y. (2020): Refinement of a gravimetric geoid model for Japan using GOCE and an updated regional gravity field model, Earth, Planets and Space, 72, 33. https://doi.org/10.1186/s40623-020-01158-6
- Morishita, Y., Lazecky, M., Wright, T.J., Weiss, J.R., Elliott, J.R., Hooper, A. (2020): LiCSBAS: An Open-Source InSAR Time Series Analysis Package Integrated with the LiCSAR Automated Sentinel-1 InSAR Processor, Remote Sens., 12, 424. https://doi.org/10.3390/rs12030424
FY2019
- Morishita, Y. (2019): A Systematic Study of Synthetic Aperture Radar Interferograms Produced From ALOS-2 Data for Large Global Earthquakes From 2014 to 2016, IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens., vol. 12, no. 7, pp. 2397-2408. https://doi.org/10.1109/JSTARS.2019.2921664
FY2017
- 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. https://doi.org/10.1002/2016JB013485
FY2016
- 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. https://doi.org/10.1186/s40623-016-0564-4
- 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. https://doi.org/10.1038/nphoton.2016.159
- 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. https://doi.org/10.1002/2016JB012795
- 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. https://doi.org/10.1186/s40623-016-0422-4
FY2015
- 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.https://doi.org/10.1007/1345_2015_49
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