3D magnetotelluric modeling using high-order tetrahedral Nédélec elements on massively parallel computing platforms

O Castillo-Reyes, D Modesto, P Queralt… - Computers & …, 2022 - Elsevier
We present a routine for 3D magnetotelluric (MT) modeling based upon high-order edge
finite element method (HEFEM), tailored and unstructured tetrahedral meshes, and high …

Improving the computational efficiency of solving multisource 3-D airborne electromagnetic problems in complex geological media

MG Persova, YG Soloveichik, DV Vagin… - Computational …, 2021 - Springer
We consider aspects that can significantly increase the computational efficiency of solving
multisource 3-D problems of airborne electromagnetic prospecting in complex geological …

Three-dimensional magnetotelluric characterization of the Travale geothermal field (Italy)

F Pace, A Martí, P Queralt, A Santilano, A Manzella… - Remote Sensing, 2022 - mdpi.com
The geoelectrical features of the Travale geothermal field (Italy), one of the most productive
geothermal fields in the world, have been investigated by means of three-dimensional (3D) …

Error propagation and model update analysis in three-dimensional CSEM inversion

R Dehiya - Geophysical Journal International, 2024 - academic.oup.com
This study examines error propagation from data to model space during 3-D inversion of
controlled-source electromagnetic (CSEM) data using a Gauss–Newton-based algorithm …

An efficient EM modeling scheme for large 3-D models—a magnetotelluric case study

A Singh, R Dehiya - IEEE Transactions on Geoscience and …, 2022 - ieeexplore.ieee.org
We present an efficient scheme for computing 3-D magnetotelluric (MT) forward responses.
The scheme is especially valuable for large models resulting from fine discretization or the …

3D inversion of magnetotelluric data by using a hybrid forward-modeling approach and mesh decoupling

D Varılsüha - Geophysics, 2020 - library.seg.org
We have developed a new algorithm for the inversion of magnetotelluric (MT) data. The
developed algorithm is built to be fast, versatile, and accurate. A fast inversion algorithm has …

Magnetotelluric responses of an anisotropic 1-D earth with a layer of exponentially varying conductivity

L Qin, W Ding, C Yang - Minerals, 2022 - mdpi.com
The magnetotelluric (MT) sounding of a layered Earth model involving a transitional layer
has been widely studied, and MT responses of the model with dipping anisotropic …

Necessity of terrain correction in magnetotelluric data recorded from Garhwal Himalayan region, India

D Kumar, A Singh, M Israil - Geosciences, 2021 - mdpi.com
The magnetotelluric (MT) method is one of the useful geophysical techniques to investigate
deep crustal structures. However, in hilly terrains, eg, the Garhwal Himalayan region, due to …

A scalable parallel algorithm for 3-D magnetotelluric finite element modeling in anisotropic media

X Zhu, J Liu, Y Cui, C Gong - IEEE Transactions on Geoscience …, 2021 - ieeexplore.ieee.org
3-D magnetotelluric (MT) forward modeling has always been faced with the problems of high
memory requirements and long computing time. In this article, we design a scalable parallel …

Transverse tectonics structures in the Garhwal Himalaya Corridor inferred from 3D inversion of magnetotelluric profile data

A Devi, M Israil, PK Gupta, SK Varshney… - Pure and Applied …, 2019 - Springer
Abstract In the Garhwal Himalayan Corridor (GHC), we recorded the magnetotelluric (MT)
data at 40 sites, in three phases. Out of these 40 sites, useful tipper or vertical magnetic field …