Broad-band Rayleigh wave tomography of Taiwan and its implications on gravity anomalies

We construct the first broad‐band surface wave group velocity dispersion maps for the entire island of Taiwan using the ambient seismic noise tomography. Continuous data from three island‐wide broad‐band networks are used. In particular, taking advantage of the temporary arrays deployed by the TAiwan Integrated GEodynamics Research project (TAIGER), we have collected an unprecedented data amount for the noise tomography in Taiwan. We construct 2D group velocity maps for Rayleigh waves from 4 to 20 seconds using a wavelet‐based multi‐scale inversion technique. Patterns of lateral variations of our shorter period (