NTW-ANT-L21

We construct a high resolution regional 3-D shear velocity model of northern Taiwan by analyzing continuous noise signals recorded from the dense broadband Formosa array. We extract robust Rayleigh wave signals from multi-component noise cross-correlations and obtain high quality Rayleigh wave phase velocity and H/V ratio measurements across the array. Utilizing the complementary sensitivity of the two types of measurements, our inverted model reveals detailed shallow crustal structures that are well correlated with surface geological features and provides new constraints on the geometry of active sedimentary basins and fault systems in the area.

Model download

• 3-D Vs joint inversion model (original)

• 3-D Vs joint inversion model (interpolated)

Data download

• Calculated cross-correlation functions for inversion

Citation

• Liu, C.-N., F.-C. Lin, H.-H. Huang*, Y. Wang, E. Berg, and C.-H. Lin (2021), High-resolution shear wave velocity structures of northern Taiwan revealed by Bayesian joint inversion of Rayleigh wave ellipticity and phase velocity, J. Geophys. Res., 126, e2020JB021610, https://doi.org/10.1029/2020JB021610.