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.
Recent overview article:
B. Schwarz (2019). An introduction to seismic diffraction. Advances in Geophysics 60, Chapter 1, pp. 1-64, Elsevier. DOI: 10.1016/bs.agph.2019.05.001 | Post-print download: EarthArXiv
View Selected Publications
Li, L., Tan, J., Schwarz, B., Stanek, F., Poiata, N., Shi, P., Diekmann, L., Eisner, L. & Gajewski, D. (2020). Recent advantages and challenges of waveform-based seismic location methods at multiple scales. Reviews of Geophysics.
Schwarz, B. (2019). An introduction to seismic diffraction. Advances in Geophysics 60, Chapter 1, 1-64.
Diekmann, L., Schwarz, B., Bauer, A. & Gajewski, D. (2019). Source localisation and joint velocity model building using wavefront attributes. Geophysical Journal International 219(2), 995-1007.
Ahmed K.A., Dell, S., Schwarz, B., Gajewski, D., Ettrich, N. (2019). 3-D seismic imaging in crystalline rock environments: An approach based on diffraction focusing. Journal of Applied Geophysics 165, 49-59.
Glöckner, M., Dell, S., Schwarz, B., Vanelle, C. & Gajewski, D. (2019). Velocity-estimation improvements and migration/demigration using the common-reflection surface with continuing deconvolution in the time domain. Geophysics 84(4), S229-S238.
Bauer, A., Schwarz, B., Werner, T., Gajewski, D. (2019). Unsupervised event identification and tagging for diffraction focusing. Geophysical Journal International 217(3), 2165–2176.
Schwarz, B. (2019). Coherent wavefield subtraction for diffraction separation. Geophysics 84(3), V157-V168.
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.