Computational Geophysics Postdoctoral Scholar

📁
Postdoctoral Fellow
💼
AU-Earth & Environmental Sciences
📅
88506 Requisition #

Berkeley Lab’s Energy Geosciences Division has an opening for a Computational Geophysics Postdoctoral Scholar. You will take a leading key in the development of advanced seismic full-waveform inversion software for recovering regional scale and high-resolution local scale geophysical properties of the subsurface using dense seismic network data. The incumbent will participate in a multi-disciplinary team developing advanced simulation and high-resolution seismic inversion capabilities that will run on very large supercomputers. You will work with project scientists on the design of the adjoint state full-waveform inversion algorithm, and lead the code development and integration into SW4, a high-performance parallel finite-difference code for large-scale seismic simulations written in C++/MPI/OpenMP. This is a 2-year position and is funded by the Department of Energy (DOE) Exascale Computing Project.


What You Will Do:

  • Contribute to the algorithm design of an efficient visco-elastic full waveform inversion capability utilizing LLNL’s SW4 FDTD simulation code base.

  • Develop associated full waveform inversion C++/MPI/OpenMP code base for use on supercomputers using modern coding practices, including modular design and unit tests.

  • Apply full waveform inversion capability to regional and local scale earthquake and ambient noise data to recover high-resolution velocity structure around the Bay Area.

  • Produce peer-reviewed archival publications, conference papers, detailed technical reports, and participate in interactions with the external DOE community stakeholders to transition technology developments to application. 

 

Additional Responsibilities as needed:

  • The Fellow will participate in the preparation and delivery of briefings and presentations to the DOE sponsoring offices.


What is Required:

  • PhD or equivalent experience in computational geophysics, computational physics, or computational mathematics.

  • Prior experience in the theory and design of full-waveform inversion techniques and their implementation on parallel computer architectures.

  • Knowledgeable in the mathematical theory of the adjoint state method for the elastic and anelastic wave equations, and have a working knowledge of numerical optimization approaches.

  • Ability to write clean, modular and unit-tested scientific code for parallel computer systems in C++/MPI.

  • Demonstrated record of high-quality research contributions, and demonstrated experience and enthusiasm for full-waveform seismic modeling and inversion.

  • Good communication skills and the ability to work effectively within a highly-integrated and interactive team from Lawrence Berkeley National Lab and Lawrence Livermore National Lab.

  • Excellent written communication skills, including demonstrated ability to write reports, conference papers, and refereed journal articles synthesizing research results, and to present research findings in conferences, workshops, and other forums.

  • Ability to collaborate with an interdisciplinary team of geophysicists and engineers.

  • Working knowledge of numerical optimization, including the adjoint state approach, linear algebra, partial differential equations, numerical methods, C++, elastic wave propagation and continuum mechanics.


The posting shall remain open until the position is filled.


Notes: 


  • This is a full time 2 year postdoctoral appointment with the possibility of renewal based upon satisfactory job performance, continuing availability of funds and ongoing operational needs. You must have less than 3 years paid postdoctoral experience. Salary for Postdoctoral positions depends on years of experience post-degree.

  • Full-time, M-F, exempt (monthly paid) from overtime pay.

  • This position is represented by a union for collective bargaining purposes.

  • Salary will be predetermined based on postdoctoral step rates.

  • This position may be subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment.

  • Work will be primarily performed at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA.



Berkeley Lab (LBNL) addresses the world’s most urgent scientific challenges by advancing sustainable energy, protecting human health, creating new materials, and revealing the origin and fate of the universe. Founded in 1931, Berkeley Lab’s scientific expertise has been recognized with 13 Nobel prizes. The University of California manages Berkeley Lab for the U.S. Department of Energy’s Office of Science.


Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4.  Click here to view the poster and supplement: "Equal Employment Opportunity is the Law."


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Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4. Click here to view the poster and supplement: "Equal Employment Opportunity is the Law."

 

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