The Earths subsurface is continuously changing, due to temporal variations in fluid flow, stress, temperature, geomechanics and geochemistry, for example. These physical changes occur at broad tectonic and earthquake scales, and also at very detailed near-surface and reservoir scales. Changes in the physical states of the earth cause time-varying changes in the physical properties of rocks and fluids, which can be monitored with natural or manmade seismic waves. Time-lapse (4D) seismic monitoring is important for applications related to natural and induced seismicity, hydrocarbon and groundwater depletion and storage, CO2 sequestration etc. An exciting new research area involves moving beyond traditional methods in order to use the full complex time-lapse scattered wavefield (4D coda) for both manmade active-source 3D/4D seismic data, and also to use continuous recordings of natural-source passive seismic data, especially micro-seismicity and ambient noise. This research involves full wave-theoretic approaches, Large N sensor arrays, big data, and high performance supercomputing (HPC).
- 2 Postdoctoral research positions are available: one in active-source seismic monitoring using Full Waveform Inversion or other wave-theoretic methods; and one in passive seismic monitoring using Large N continuous recordings of micro-seismic data and ambient noise.
- 2-4 PhD Geophysics positions are available in the research areas described above. Outstanding MSc Geophysics candidates may also be considered in addition.
Applicants must have a strong background in physics, applied mathematics and computer science. Knowledge of seismology and geophysics is helpful but not strictly required if willing to learn. All applicants should supply pdfs of: current CV, 3 References, unofficial Transcripts showing all courses taken and grades obtained, a 1-2 page statement of research interests, and 3 examples of published papers or conference abstracts. PhD students should also supply GRE scores
the average scores of accepted UTD Science and Engineering students are GREV=155, GREQ=165, GREW=4.0.
Successful applicants will be part of a world-class research group with expertise in wave-theoretic seismic imaging, inversion and monitoring, with access to excellent HPC computational resources, and research funding from both industry and government sources. The research supervisory team includes: Prof David Lumley, A/Prof Hejun Zhu, Prof Sue Minkoff, Prof George McMechan, et al.
UT Dallas is rapidly advancing on a path to become one of the top science and engineering universities in the US, currently ranked as #16 in the world for universities less than 50 years old. The City of Dallas combines a mix of the old southwest and the new cosmopolitan, has an affordable cost of living, and is centrally located for easy travel to other parts of the US and North America.
For further information:
Please contact Prof David Lumley, Chair in Geophysics: firstname.lastname@example.org.
Additional information regarding UT Dallas and requirements can be found at www.utdallas.edu.