Services
I am a researcher (Ph.D.) specializing in time-series and spectral analysis of groundwater-level and hydrological data (FFT, wavelet, cross-correlation) and geochemical modeling (PHREEQC). From hands-on graduate courses to technical guidance and contract/collaborative research, I help teams make sense of real data. Available in both English and Japanese.
What I Offer
🎓 Intensive Courses & Hands-on Workshops
Practical training in PHREEQC (geochemical modeling) and time-series & spectral analysis of hydrological data (FFT, wavelet) for graduate students and labs, over one to a few days. Built on the DeepFlows tutorial series, hands-on.
🛠️ Technical Guidance & Modeling Support
I take on — or work alongside you on — the modeling part of your research project, including untangling where students get stuck.
📊 Contract & Collaborative Research
Time-series analysis of groundwater-level & hydrological data (tidal/barometric response, hydraulic conductivity & diffusivity estimation, FFT, wavelet, cross-correlation), and geochemistry (water-quality formation, water–rock interaction, geothermal / CO2).
🎤 Talks & Seminars
Invited talks and seminars for study groups, conferences, and companies — technical topics made clear.
🐍 Data Analysis & Visualization
Time-series & spectral analysis (FFT, wavelet), spatial interpolation, and figure preparation in Python, shaped for research and reporting.
Who It’s For
- University labs and graduate students (learning modeling, or needing it for a project)
- Research institutes and government agencies (groundwater & geochemistry analysis)
- Companies in the environmental, geothermal, and water-resources sectors
Credentials
- Ph.D. in Science / 26 peer-reviewed papers (14 as first author)
- Expertise: time-series & spectral analysis of groundwater-level and hydrological data (FFT, wavelet, cross-correlation, tidal/barometric response), geochemical modeling (PHREEQC), water–rock interaction (geothermal / CO2)
Background
Education
- Ph.D. in Science, Osaka City University (2012)
- M.A. in Arts and Sciences, Osaka Kyoiku University (2009)
- MEXT (Japanese Government) Scholarship
Research positions
- University of Toyama, Faculty of Science — Specially Appointed Associate Professor / Researcher (2022–2026) | water–rock interaction, geochemical modeling
- Kyoto University, Institute for Geothermal Sciences — Researcher (2019–2022) | hot-spring chemistry & groundwater flow
- Tokyo Institute of Technology, School of Environment and Society — Researcher (2016–2017) | lake water quality & flood analysis
- Kumamoto University, Graduate School of Science and Technology — Researcher (2012–2016) | island freshwater-lens analysis
See the full publication list on About.
Contact
For enquiries, please get in touch with a short note about what you need (scope, timing, and rough budget). Fees are discussed based on scope.
[You can also reach me via the Contact page.]