3D electromagnetic modelling and inversion - a case for open source

Presenting arguments for adopting an open-source methodology for geophysics and provide some background about open-source software for electromagnetics.
Jan 1, 2020

Efficient 3D inversions using the Richards equation

Fluid flow in the vadose zone, governed by the Richards equation, requires characterizing hydraulic properties using direct and proxy measurements. We present an efficient inversion technique for 1D, 2D, and 3D hydraulic properties, implemented in SimPEG, enabling large-scale inversions with modest resources.
Jul 1, 2018

Modeling electromagnetics on cylindrical meshes with applications to steel-cased wells

Mar 7, 2019

Geophysical Inversions to Delineate Rocks with CO2 Sequestration Potential Through Carbon Mineralization

Identifying some of the opportunities and areas of future research for the use of geophysical data for carbon mineralization.
Jan 20, 2022

Inversion using spatially variable mixed ℓp norms

We use our algorithm to generate an ensemble of solutions with mixed ℓp norms. In addition, we use this ensemble to estimate the suite of p values that can be used in a final inversion.
Mar 27, 2019

Open-source software for simulations and inversions of airborne electromagnetic data

overview of the software in its application to airborne electromagnetics and demonstrate its use for visualising fields and fluxes in a forward simulation, as well as its flexibility in formulating and solving the inverse problem.
Jan 1, 2020

Geophysical electromagnetics- A retrospective, DISC 2017, and a look forward

Reflecting on the development of EM geophysics over the years, to enhance understanding of EM geophysics, and on its visibility and usefulness to the community.
Feb 2, 2021

A framework for simulation and inversion in electromagnetics

Proposing a framework for organizing and implementing electromagnetic simulations and gradient-based inversions in a modular, extensible fashion.
Jul 19, 2017

An open source framework for simulation and gradient based parameter estimation in geophysical applications

Proposing a framework that supports many different types of geophysical forward simulations and deterministic inverse problems
Sep 26, 2015

Opportunities for open-source software to accelerate research in applied geophysics

This article considers the potential for open-source software and open-science practices to accelerate research in applied geophysics and thereby contribute to solutions of geoscientific problems impacting society.
Feb 1, 2024

Direct current resistivity with steel-cased wells

Adopting a cylindrical discretization for numerical simulations to investigate three important aspects of DC resistivity in settings with steel-cased wells.
Jun 18, 2019

Electrical and electromagnetic responses over steel-cased wells

Examining and discussing the physics of electrical and EM responses of steel-cased wells, with focus on grounded source methods.
Feb 1, 2022

Impacts of magnetic permeability on electromagnetic data collected in settings with steel-cased wells

Mar 23, 2023