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AARMS Collaborative Research Group:
Numerical Solution of Geophysical Inverse Problems

If you are interested in joining this collaboration, please contact the administrator: plelievre@mta.ca

Overview

Geophysical inversion is very much an interdisciplinary field, combining aspects of mathematics, computer science, physics and Earth sciences. Geophysical inversion generates models (three-dimensional spatial representations) of the physical properties of the Earth's subsurface that could have given rise to measured data from a geophysical survey: for example, gravity, magnetic, electrical and electromagnetic measurements taken at, above or below ground level. Inversion is a computationally intensive procedure, relying on accurate numerical solution of the differential equations that describe the physical phenomena involved, and development of numerical optimization routines tailored to the specific inverse problem at hand. Geophysical inversion provides a non-invasive method for building models of the subsurface that can be used to inform decision makers before invasive inspection is employed. These techniques have proven helpful for addressing a wide range of practical problems in various fields, including resource exploration, natural hazard mitigation, archaeology, agriculture and many other environmental and civil engineering investigations. However, most existing popular geophysical modelling algorithms apply early, perhaps even obsolete, numerical optimization methods in their solution. Such methods have proven inadequate for more complicated geophysical modelling problems and further research is needed to design, test, apply and tune new numerical methods.

Participants

Please contact the administrator (plelievre@mta.ca) if you would like to be listed as a participant, or removed from this list.

Academic Administrator

Collaborators from AARMS Member Universities

Collaborators from Other Universities

Upcoming Events

AARMS Geophysical Inverse Problems Discussion Series

Each meeting we will discuss a paper that introduces a geophysical inverse problem that involves a more difficult numerical optimization problem to solve. A first stage of discussions will help to identify and better understand some of these types of more complicated inverse problems, from an optimization perspective, before a second stage of discussions on how to solve them. I hope this discussion series helps to educate us all on aspects of geophysical inverse problems that perhaps we have not thought about before, whether you are a student, more senior researcher, code developer or practitioner. Please contact the administrator (plelievre@mta.ca) if there are any papers that you would like the group to discuss.

This paper discussion series will take place every second Friday, online via zoom using the following link: Time (in various time zones): Very tentative schedule (please watch for changes, can also be found here ):