Geophysics
· A minor trackEarth
Applying seismic-inversion techniques developed for the Sun to terrestrial geophysics — a secondary track.
The mathematical machinery of helioseismic inversions — finite-frequency sensitivity kernels, Born approximations, adjoint inversion — translates directly to seismic tomography of Earth's mantle and core. Applying methods developed for stellar physics to the solid Earth opens productive cross-disciplinary conversations.
This is a minor track for the group. The work focuses on noise cross-correlation theory, ambient-noise tomography, and renormalization-group approaches to the wave equation in heterogeneous media.
Related publications
See all in Earth →Homogenization of Elastic Wave Equation using Renormalization Group Theory
Bhaskar Illa, Ajay Malkoti, Shravan Hanasoge, Rene-Edouard Plessix, Anu Chandran
Upscaling acoustic wave equation using renormalization group theory
Ajay Malkoti, Shravan Hanasoge, René-Édouard Plessix
Rayleigh-wave H/V ratio measurement from ambient noise cross-correlations and its sensitivity to VP: a numerical study
Ajay Malkoti, Arjun Datta, Shravan Hanasoge
Finite frequency inversion of cross-correlation amplitudes for ambient noise source directivity estimation
Arjun Datta, Shravan Hanasoge, J. Goudswaard
Renormalization group theory outperforms other approaches in statistical comparison between upscaling techniques for porous media
Shravan Hanasoge, Umang Agarwal, Kunj Tandon, J. Vianney Koelman
For all peer-reviewed publications across the group, see the full publications page.
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