Automatic picking of direct P, S seismic phases and fault zone head waves

ZE Ross, Y Ben-Zion - Geophysical Journal International, 2014 - academic.oup.com
We develop a set of algorithms for automatic detection and picking of direct P and S waves,
as well as fault zone head waves (FZHW), generated by earthquakes on faults that separate …

Regional seismic observations of the 9 October 2006 underground nuclear explosion in North Korea and the influence of crustal structure on regional phases

TK Hong, CE Baag, H Choi… - Journal of Geophysical …, 2008 - Wiley Online Library
The crustally guided shear wave, Lg, is typically the most prominent phase of a nuclear
explosion at regional distance. This Lg phase is analyzed often to discriminate a nuclear …

Asymmetric chirplet transform for sparse representation of seismic data

F Boßmann, J Ma - Geophysics, 2015 - library.seg.org
For a fast and accurate extraction of important information in seismic signals, a sparse
representation based on the physical parameters of the given data is crucial. We have used …

Tomographic investigation of the wear along the San Jacinto fault, southern California

TK Hong, W Menke - Physics of the earth and Planetary Interiors, 2006 - Elsevier
The seismic properties of the wear along the San Jacinto fault are investigated using local
seismic records for clustered fault-zone earthquakes. Spatial reciprocity allows us to use the …

Inversion of acoustic thunder source spectral model from thunder-induced seismic waves in megacity

TK Hong, S Park, D Chung, B Kim - Geophysical Journal …, 2023 - academic.oup.com
Thunder-induced seismic waves recorded at dense seismic stations in Seoul, South Korea
are analysed for inversion of thunder source spectra. Thunder-induced seismic waves from …

Stochastic modeling and simulation of ground motions using complex discrete wavelet transform and Gaussian mixture model

R Sharbati, F Khoshnoudian, HR Ramazi… - Soil Dynamics and …, 2018 - Elsevier
The aim of this research is to develop a stochastic model for generating synthetic ground
motions in accordance with a recorded ground motion. In this model, Complex discrete …

Laterally varying crustal and Quaternary fault‐zone structures in the Seoul metropolitan area, South Korea, from a joint inversion analysis based on dense seismic …

J Lee, TK Hong, S Park, J Lee… - Bulletin of the …, 2022 - pubs.geoscienceworld.org
The crustal structure and Quaternary fault zone in the Seoul metropolitan area are
investigated using a joint inversion that combines the receiver functions with surface wave …

Asymmetric chirplet transform—Part 2: Phase, frequency, and chirp rate

F Boßmann, J Ma - Geophysics, 2016 - pubs.geoscienceworld.org
An asymmetric chirplet transform, also called the asymmetric Gaussian chirplet model
(AGCM), was recently introduced for fast and accurate extraction of important information …

3-D marine controlled-source electromagnetic modelling in an anisotropic medium using a Wavelet–Galerkin method with a secondary potential formulation

H Chen, T Li - Geophysical Journal International, 2019 - academic.oup.com
This paper presents a new algorithm for solving 3-D MCSEM modelling problems in an
anisotropic medium using a Wavelet–Galerkin method (WGM) based on compactly …

Numerical simulation of the localization of elastic waves in two-and three-dimensional heterogeneous media

R Sepehrinia, MR Rahimi Tabar, M Sahimi - Physical Review B—Condensed …, 2008 - APS
Localization of elastic waves in two-dimensional (2D) and three-dimensional (3D) media
with random distributions of the Lamé coefficients (the shear and bulk moduli) is studied …