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).
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Projects
Recent Publications
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 - ASCE. 38, 3, 04024021.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
Wavefield Modeling and Analysis of Lightning Quakes Measured by a Distributed Acoustic Sensing Array
Roth, N., Zhu, T., Czarny, R. & Gao, Y., Apr 2024, In: Bulletin of the Seismological Society of America. 114, 2, p. 1124-1139 16 p.Research output: Contribution to journal › Article › peer-review
Expanding the Spatial Reach and Human Impacts of Critical Zone Science
Singha, K., Sullivan, P. L., Billings, S. A., Walls, L., Li, L., Jarecke, K. M., Barnard, H. R., Gasparini, N. M., Madoff, R. D., Dhital, S., Jones, C., Kastelic, E. C., Ma, L., Perilla-Castillo, P., Song, B. & Zhu, T., Mar 2024, In: Earth's Future. 12, 3, e2023EF003971.Research output: Contribution to journal › Article › peer-review
Mapping Permafrost Variability and Degradation Using Seismic Surface Waves, Electrical Resistivity, and Temperature Sensing: A Case Study in Arctic Alaska
Tourei, A., Ji, X., Rocha dos Santos, G., Czarny, R., Rybakov, S., Wang, Z., Hallissey, M., Martin, E. R., Xiao, M., Zhu, T., Nicolsky, D. & Jensen, A., Mar 2024, In: Journal of Geophysical Research: Earth Surface. 129, 3, e2023JF007352.Research output: Contribution to journal › Article › peer-review
Advancing attenuation estimation through integration of the Hessian in multiparameter viscoacoustic full-waveform inversion
Xing, G. & Zhu, T., Sep 1 2024, In: Geophysics. 89, 5, p. R429-R442Research output: Contribution to journal › Article › peer-review
DASEventNet: AI-Based Microseismic Detection on Distributed Acoustic Sensing Data From the Utah FORGE Well 16A (78)-32 Hydraulic Stimulation
Yu, P., Zhu, T., Marone, C., Elsworth, D. & Yu, M., Sep 2024, In: Journal of Geophysical Research: Solid Earth. 129, 9, e2024JB029102.Research output: Contribution to journal › Article › peer-review
Data-assimilated time-lapse visco-acoustic full-waveform inversion: Theory and application for injected CO2plume monitoring
Huang, C., Zhu, T. & Xing, G., Jan 1 2023, In: Geophysics. 88, 1, p. R105-R120Research output: Contribution to journal › Article › peer-review
Deep learning based microearthquake location prediction at Newberry EGS using physics-informed synthetic dataset
Leong, Z. X. & Zhu, T., Dec 14 2023, In: SEG Technical Program Expanded Abstracts. 2023-August, p. 1146-1150 5 p.Research output: Contribution to journal › Conference article › peer-review
Understanding Subsurface Fracture Evolution Dynamics Using Time-Lapse Full Waveform Inversion of Continuous Active-Source Seismic Monitoring Data
Liu, X., Zhu, T. & Ajo-Franklin, J., Feb 28 2023, In: Geophysical Research Letters. 50, 4, e2022GL101739.Research output: Contribution to journal › Article › peer-review
Active-seismic monitoring of pore pressure changes in an analog reservoir
Shadoan, T., Ajo-Franklin, J., Patterson, J. R. & Zhu, T., Dec 14 2023, In: SEG Technical Program Expanded Abstracts. 2023-August, p. 416-420 5 p.Research output: Contribution to journal › Conference article › peer-review