# EM Notebooks¶

A collection of notebooks that use the electromagnetics (EM) module of SimPEG. Many of these notebooks reproduce examples from EM GeoSci, an open source “textbook” on applied electromagnetics.

• (Cockett et al., 2015): SimPEG: An open source framework for simulation and gradient based parameter estimation in geophysical applications
• (Heagy et al., 2016): A framework for simulation and inversion in electromagnetics

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EM Fundamentals | Inverting Field Data | MT Tutorial | Additional Notebooks

## Contents¶

### EM Fundamentals¶

These notebooks walk through using SimPEG for conducting a TDEM and FDEM soundings over a sphere. They use the cylindrically symmetric mesh for the forward modelling

### Inverting Field Data¶

These notebooks walk through inverting a single sounding of airborne EM data collected in Australia.

### MT Tutorial¶

These notebooks were originall published in The Leading Edge

Seogi Kang , Lindsey J. Heagy , Rowan Cockett , and Douglas W. Oldenburg (2017). ”Exploring nonlinear inversions: A 1D magnetotelluric example.” The Leading Edge, 36(8), 696–699.



There are 5 notebooks in this tutorial - we wrote them starting from discretizing the governing equations for the Magnetotelluric Problem, running a forward simulation and exploring an example of non-uniqueness, and performing the inversion. Although this is a natural order in terms of building the pieces, you do not need to work through them in order, each notebook is self-contained and has links to others where appropriate.

There are also 2 "appendix" notebooks

From the menu, select cell, run all, or run each individual cell using shift + enter