Publications

Highlights

(For a full list see below or go to Google scholar)

Three-dimensional inversion of controlled-source electromagnetic data using general measures to evaluate data misfits and model structures

Yonghyun Chung, Soon Jee Seol and Joongmoo Byun

Geophysical Prospecting (2024)

doi:10.1111/1365-2478.13576 PDF

1. We developed a new 3D controlled-source electromagnetic inversion algorithm that allows general measures to be made selectively available.

2. The behaviours of general measures are examined focusing on weighting mechanism and user-defined parameters.

3. Our findings highlight the seamless integration of general measures, contributing to improved robustness against data outliers and enhanced spatial properties provided in output models.



Three-dimensional modelling of controlled-source electromagnetic surveys using an edge finite-element method with a direct solver

Yonghyun Chung, Jeong-Sul Son, Tae Jong Lee, Hee Joon Kim and Changsoo Shin

Geophysical Prospecting (2014)

doi:10.1111/1365-2478.12132 PDF

1. We propose a fully three-dimensional edge-finite-element algorithm for simulating CSEM surveys.

2. We compare the performance between direct and iterative solvers.

3. The results show the superior efficiency of direct solvers, particularly for multisource problems.



 

Full List

Peer-review Journal publication

Yonghyun Chung, Soon Jee Seol and Joongmoo Byun (2024), Three-dimensional inversion of controlled-source electromagnetic data using general measures to evaluate data misfits and model structures, Geophysical Prospecting, , doi:10.1111/1365-2478.13576 PDF

Yonghyun Chung, Jeong-Sul Son, Tae Jong Lee, Hee Joon Kim and Changsoo Shin (2014), Three-dimensional modelling of controlled-source electromagnetic surveys using an edge finite-element method with a direct solver, Geophysical Prospecting, 62(6), doi:10.1111/1365-2478.12132 PDF


Non Peer-review publication