Benjamin Schwarz

Benjamin Schwarz

Visiting Researcher

My research across the scales aims at strengthening the interface between traditionally separated fields with an emphasis on exploration and earthquake seismology. I am additionally interested in optics, i.e. the (non-quantum mechanical) theory of light, and how its well-established and rich conceptual framework might inspire new developments in seismic and ground-penetrating radar subsurface imaging. Building on ever-improving instrumentation I explore the potential of using (formerly ignored) weak wavefields, such as seismic and electromagnetic diffraction on the scales of oceans, glaciers, or Earth’s crust and general back-scattering in earthquake studies, to push the respective limits of resolution and illumination.

I work with Karin Sigloch and Tarje Nissen-Meyer on various conceptual aspects of seismology, with a special emphasis on regions, where the emerging wavefield is densely sampled with modern seismological arrays. My research is supported by a research fellowship of the German Research Foundation (DFG, SCHW 1870/1-1).

Teaching
Tutor – Mathematics for Earth Sciences (1st year)
Tutor – Vector Calculus (3rd year)

ResearchGate
LinkedIn
Publons

Diekmann, L., Schwarz, B., Bauer, A. & Gajewski, D. (in review). Source localisation and joint velocity model building using wavefront attributes. Geophysical Journal International.


Ahmed K.A., Dell, S., Schwarz, B., Gajewski, D., Ettrich, N. (in review). 3-D seismic imaging in crystalline rock environments: An approach based on diffraction focusing. Journal of Applied Geophysics.


Glöckner, M., Dell, S., Schwarz, B., Vanelle, C. & Gajewski, D. (2019). Velocity-estimation improvements and migration/demigration using CRS with continuing deconvolution in the time domain. Geophysics.


Bauer, A., Schwarz, B., Werner, T., Gajewski, D. (2019). Unsupervised event identification and tagging for diffraction focusing. Geophysical Journal International.


Schwarz, B. (2019). Coherent wavefield subtraction for diffraction separation. Geophysics.


Bakhtiari Rad, P., Schwarz, B., Vanelle, C. & Gajewski, D. (2018). Common-reflection-surface-based prestack diffraction separation and imaging. Geophysics 83(1), S47-S55.


Schwarz, B. & Gajewski, D. (2017). Accessing the diffracted wavefield by coherent subtraction. Geophysical Journal International 211(1), 45-49.


Schwarz, B. & Gajewski, D. (2017). A generalized view on normal moveout. Geophysics 82(5), V335-V349.


Schwarz, B. & Gajewski, D. (2017). The two faces of NMO. The Leading Edge 36(6), 512-517.


Walda, J., Schwarz, B. & Gajewski, D. (2017). A competitive comparison of multiparameter stacking operators. Geophysics 82(4), V275-V283.


Bauer, A., Schwarz, B. & Gajewski,D. (2017). Utilizing diffractions in wavefront tomography. Geophysics 82(2), R65-R73.


Schwarz, B., Bauer, A. & Gajewski, D. (2016). Passive seismic source localization via common-reflection-surface attributes. Studia Geophysica et Geodaetica 60(3), 531-546.


Bauer, A., Schwarz, B. & Gajewski, D. (2016). Enhancement of prestack diffraction data and attributes using a traveltime decomposition approach. Studia Geophysica et Geodaetica 60(3), 471-486.


Ahmed, K. A., Schwarz, B. & Gajewski, D. (2015). Application of the 3D common-reflection-surface stack workflow in a crystalline rock environment. Geophysical Prospecting 63(4), 990-998.


Schwarz, B., Vanelle, C., Gajewski, D. & Kashtan, B. (2014). Curvatures and inhomogeneities: An improved common-reflection-surface approach. Geophysics 79(5), S231-S240.