Tieyuan Zhu
Tieyuan Zhu is a geophysicist focused on advancing the resolution of geophysical data, including seismic and ground-penetrating radar (GPR), to study near-surface geology and address environmental and energy challenges such as geohazards and CO2 sequestration. His research interests include near-surface/critical zone seismology, fiber optics seismology, wave physics (seismic, GPR), CO2 sequestration/geothermal exploration, and geophysics and seismology.
Zhu is also the leader of the Environmental Geophysics Group (EGG) at Penn State, which is dedicated to improving the physical imaging of near-surface geology structure and its physical properties using quantitative geophysical methods (seismic and ground-penetrating radar).
In the News
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Projects
Recent Publications
Physics-Informed Digital Twin for Predicting Permafrost Thermodynamic Characteristics Under an Embankment Road in Utqiaġvik, Alaska
Gou, L., Xiao, M., Zhu, T., Martin, E. R., Wang, Z., Rocha dos Santos, G., Nicolsky, D. & Ji, X., Apr 2026, In: Journal of Geophysical Research: Earth Surface. 131, 4, e2025JF008787.Research output: Contribution to journal › Article › peer-review
Imaging Near-Surface Bedrock Fracturing and Fluid Pathways Using Seismic Attenuation and Velocity From Viscoacoustic Full-Waveform Inversion of Refraction Data
Kim, D., Xing, G. & Zhu, T., Aug 2026, In: Journal of Geophysical Research: Solid Earth. 131, 8, e2025JB033491.Research output: Contribution to journal › Article › peer-review
Imaging Earth's subsurface with thunderstorm-generated seismic waves
Roth, N., Kim, D., Czarny, R., Kim, Y. C., Wauthier, C. & Zhu, T., Aug 21 2026, In: Science Advances. 12, 34, p. eaeg8096Research output: Contribution to journal › Article › peer-review
Unsupervised Characterization of Rain-Induced Seismic Noise in Urban Fiber-Optic Networks Using Deep Embedded Clustering
Shen, J. & Zhu, T., Jan 2026, In: Water Resources Research. 62, 1, e2025WR041137.Research output: Contribution to journal › Article › peer-review
Why do seismic attenuation models enhance time-lapse imaging? A 2D viscoacoustic full-waveform inversion case study from the Volve field
Kim, D. & Zhu, T., Jul 1 2025, In: Geophysics. 90, 4, p. B193-B207Research output: Contribution to journal › Article › peer-review
Seismic Tremors From Sea-Landfast Ice Interactions Near Utqiaġvik, Alaska
Rocha dos Santos, G. & Zhu, T., Aug 16 2025, In: Geophysical Research Letters. 52, 15, e2025GL117458.Research output: Contribution to journal › Article › peer-review
Constraining water dynamics through unsaturated and saturated zones using fiber-optic seismic sensing data
Shen, J. & Zhu, T., Sep 15 2025, In: Earth and Planetary Science Letters. 666, 119507.Research output: Contribution to journal › Article › peer-review
Characterizing Fractured Zones in Urban Karst Geology Using Leaky Surface Waves From Distributed Acoustic Sensing
Wang, Z. & Zhu, T., Jul 2025, In: Journal of Geophysical Research: Solid Earth. 130, 7, e2025JB031477.Research output: Contribution to journal › Article › peer-review
Complex spatial distribution of onset amplitude and waveform correlation: case studies from different DAS experiments
Bozzi, E., Saccorotti, G., Piana Agostinetti, N., Becerril, C., Fichtner, A., Klaasen, S., Nishimura, T., Shen, J., Walter, F. & Zhu, T., Jun 2024, In: Bulletin of Geophysics and Oceanography. 65, 2, p. 271-290 20 p.Research output: Contribution to journal › Article › peer-review
Modelling uncertainty in P-wave arrival-times retrieved from DAS data: case-studies from 15 fibre optic cables
Bozzi, E., Piana Agostinetti, N., Fichtner, A., Klaasen, S., Ugalde, A., Biondi, B., Yuan, S., Dahm, T., Isken, M., Paitz, P., Walter, F., Baird, A. F., Becerril, C., Nishimura, T., Shen, J., Zhu, T. & Saccorotti, G., Dec 1 2024, In: Geophysical Journal International. 239, 3, p. 1928-1942 15 p.Research output: Contribution to journal › Article › peer-review
Statistical Evaluation of Seismic Velocity Models of Permafrost
Ji, X., Xiao, M., Martin, E. R. & Zhu, T., Sep 1 2024, In: Journal of Cold Regions Engineering. 38, 3, 04024021.Research output: Contribution to journal › Article › peer-review
Machine Learning-Assisted Microearthquake Location Workflow for Monitoring the Newberry Enhanced Geothermal System
Leong, Z. X. & Zhu, T., Sep 2024, In: Journal of Geophysical Research: Machine Learning and Computation. 1, 3, e2024JH000159.Research output: Contribution to journal › Article › peer-review
Time-lapse seismic inversion for CO2 saturation with SeisCO2Net: An application to Frio-II site
Leong, Z. X., Zhu, T. & Sun, A. Y., Feb 2024, In: International Journal of Greenhouse Gas Control. 132, 104058.Research output: Contribution to journal › Article › peer-review
Seismoelectric Imaging of Aquifer Interface: Theoretical Investigation and Laboratory Experiments
Liu, J., Gao, Y., Wang, J., Zhu, T., Ding, P., Zhou, G. & Li, S., Dec 16 2024, In: Geophysical Research Letters. 51, 23, e2024GL112534.Research output: Contribution to journal › Article › peer-review
Characterizing Liquid Water in Deep Martian Aquifers: A Seismo-Electric Approach
Roth, N., Zhu, T. & Gao, Y., May 2024, In: Journal of Geophysical Research: Planets. 129, 5, e2024JE008292.Research output: Contribution to journal › Article › peer-review
