産総研
last updated 2026.1.20
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湊 翔平（Shohei Minato）
国立研究開発法人産業技術総合研究所
レジリエントインフラ実装研究センター　スマート監視技術研究チーム
（兼務：地質調査総合センター　地圏資源環境研究部門 　 物理探査研究グループ）
主任研究員
　
〒305-8567 茨城県つくば市梅園1-1-1　中央事業所７群
TEL：029-861-3511 (代表)
E-mail：s.minato*aist.go.jp（*を@に変更して使用してください。）
経歴
  • 2023- 産業技術総合研究所　研究員
  • 2012-2023:デルフト工科大学 (オランダ)　 研究員
  • 2017-2023:応用地質株式会社　研究員
  • 2012: 京都大学　研究員
  • 2012: 博士（工学）京都大学大学院工学研究科
研究の概要
地球物理学を専門とし、地震波解析および全波形逆解析（Full Waveform Inversion：FWI）による地下構造の高解像度イメージングに取り組んでいます。これまで、理論および数値計算に基づく波動解析を基盤として、亀裂や断層の特性評価、流体の影響を受ける地下構造の解析を中心に研究を進めてきました。 特に、地震波を用いた亀裂のコンプライアンス（変形のしやすさ）や開口幅の定量化手法を開発し、地震波トモグラフィや逆解析技術の高度化に貢献してきました。さらに、地震・地下構造モニタリングを通じて、災害予測やエネルギー資源探査などへの応用を見据えた、実用的な解析手法の開発にも取り組んでいます。 近年は、これまで培ってきた理論・数値解析的知見を基盤に、実データの取得・解析や観測技術の高度化にも研究の重点を広げています。加えて、光ファイバ分散型音響計測（Distributed Acoustic Sensing：DAS）の活用を進めるとともに、二酸化炭素地中貯留（CCS）、水資源管理、インフラ監視など、環境および持続可能性に関わる分野への展開を目指しています。 地球科学の知見と先端的技術を融合させ、社会的課題の解決に貢献することを目標に、革新的な研究に継続して挑戦しています。
研究実績

原著論文

  1. Minato, S., R. Ghose, and T. Kiguchi, 2026, A semi-analytical approach to model borehole tube waves for interpretation of downhole seismic data in fault zones, Journal of Geophysical Research: Solid Earth, in press.
  2. Minato, S., T. Yokota, and S. Nakayama, 2025, Enhancing illumination in DAS-FWI by combining strain-rate and pseudo-pressure data: A comparative study, Geophysics, in press.
  3. Minato, S. and R. Ghose, 2025, Time-lapse S-wave tomography at a test dyke with changing water levels, Geophysics, 90, A21-WA246.
  4. Kawasaki, Y., S. Minato, and R. Ghose, 2024, Subsoil density field reconstruction through 3-D FWI: a systematic comparison between vertical- and horizontal-force seismic sources, Geophysical Journal International, 236, 727-747.
  5. Minato, S. and R. Ghose, 2021, A novel principle to localize the sensitivity of waveform tomography using wave interferences at the observation boundary, Scientific Reports, 11, 22073.
  6. Minato, S., K. Wapenaar, and R. Ghose, 2020, Elastic least-squares migration for quantitative reflection imaging of fracture compliances, Geophysics, 85, S327-S342.
  7. Hunziker, J., A. Greenwood, S. Minato, N. D. Barbosa, E. Caspari, and K. Holliger, 2020, Bayesian full-waveform inversion of tube waves to estimate fracture aperture and compliance, Solid Earth, 11(2), 657-668.
  8. Minato, S., R. Ghose, and G. Osukuku, 2018, Experimental verification of spatially varying fracture-compliance estimates obtained from amplitude variation with offset inversion coupled with linear slip theory, Geophysics, 83, WA1-WA8.
  9. Minato, S., R. Ghose, T. Tsuji, M. Ikeda, and K. Onishi, 2017, Hydraulic properties of closely spaced dipping open fractures intersecting a fluid-filled borehole derived from tube wave generation and scattering, Journal of Geophysical Research: Solid Earth, 122, 8003-8020.
  10. Tsuji, T., S. Minato, R. Kamei, T. Tsuru, and G. Kimura, 2017, 3D geometry of a plate boundary fault related to the 2016 Off-Mie earthquake in the Nankai subduction zone, Japan, Earth and Planetary Science Letters, 478, 234-244.
  11. Suzaki, A., S. Minato, R. Ghose, C. Konishi, and N. Sakai, 2017, Modelling time-lapse shear-wave velocity changes in an unsaturated soil embankment due to water infiltration and drainage, First Break, 35(8), 81-90.
  12. Minato, S. and R. Ghose, 2017, Low-frequency guided waves in a fluid-filled borehole: Simultaneous effects of generation and scattering due to multiple fractures, Journal of Applied Physics, 121, 104902.
  13. Minato, S. and R. Ghose, 2016, Enhanced characterization of fracture compliance heterogeneity using multiple reflections and data-driven Green's function retrieval, Journal of Geophysical Research: Solid Earth, 121, 2813-2836.
  14. Minato, S. and R. Ghose, 2016, AVO inversion for a non-welded interface: estimating compliances of a fluid-filled fracture, Geophysical Journal International, 206, 56-62.
  15. Nishitsuji, Y., S. Minato, B. Boullenger, M. Gomez, K. Wapenaar, and D. Draganov, 2016, Crustal-scale reflection imaging and interpretation by passive seismic interferometry using local earthquakes, Interpretation, 4 (3), S29-SJ53.
  16. Minato, S. and R. Ghose, 2015, Nonlinear imaging condition and the effect of source illumination: Imaging fractures as nonwelded interfaces, Geophysics, 80, A25-A30.
  17. Minato, S. and R. Ghose, 2014, Imaging and characterization of a subhorizontal non-welded interface from point source elastic scattering response, Geophysical Journal International, 197, 1090-1095.
  18. Minato, S. and R. Ghose, 2014, Power spectral density of the heterogeneous fracture compliance from scattered elastic wavefield, Geophysics, 79(2), D67-D79.
  19. Minato, S. and R. Ghose, 2013, Inverse scattering solution for the spatially heterogeneous compliance of a single fracture, Geophysical Journal International, 195, 1878-1891.
  20. Minato, S., T. Matsuoka and T. Tsuji, 2013, Singular-value decomposition analysis of source illumination in seismic interferometry by multidimensional deconvolution, Geophysics, 78(3),Q25-Q34.
  21. Minato, S., T. Tsuji, S. Ohmi, and T. Matsuoka, 2012, Monitoring seismic velocity change caused by the 2011 Tohoku-oki earthquake using ambient noise records, Geophysical Research Letters, 39(9), L09309.
  22. Minato, S., T. Tsuji, T. Matsuoka, and K. Obana, 2012, Crosscorrelation of earthquake data using stationary phase evaluation: Insight into reflection structures of oceanic crust surface in the Nankai Trough, International Journal of Geophysics, 2012, Article ID 101545, 8pages.
  23. Minato, S., T. Tsuji, T. Matsuoka, N. Nishizaka, and M. Ikeda, 2012, Global optimization by simulated annealing for common reflection surface stacking, and its application to low-fold marine data in Southwest Japan, Exploration Geophysics, 43(2), 59-69.
  24. Minato, S., T. Matsuoka, T. Tsuji, D. Draganov, J. Hunziker, and K. Wapenaar, 2011, Seismic interferometry using multidimensional deconvolution and crosscorrelation for crosswell seismic reflection data without borehole sources, Geophysics, 76, SA19-SA34.
  25. Minato, S., T. Tsuji, T. Noguchi, K. Shiraishi, T. Matsuoka, Y. Fukao, and G. Moore, 2009, Estimation of detailed temperature distribution of sea water using seismic oceanography [in Japanese], BUTSURI-TANSA, 62, 509-520.