Introduction





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Contents:

How to use this resource

There are multiple ways to use em.geosci:

  • to ask a question about some aspect of electromagnetics

    • what is Faraday’s law?
    • how does an electromagnetic wave decay as it propagates?
    • ...
  • to obtain information about a geophysical survey (instrumentation, data acquisition, processing)

  • to find Case Histories about the use of geophysics in solving applied problems.

These objectives are interconnected and the sequence in which the questions are asked will depend upon the problem. The advantage of a digital resource is that essential elements can be linked; so starting at a Case History for mineral exploration might lead to querying what a time domain survey is and this might bring the reader back to Faraday’s law. Alternatively, in the presentation of Faraday’s Law, there are links to time domain surveys and also links to case history examples.

The exact organization structure of the menu is therefore inconsequential. Even though all material is connected, we have attempted to organize the topics into self-contained groups. Each section begins with an overview that can help guide the reader.

A major component of learning is the ability to interact with material, that is, to engage with the concepts that are being presented. Throughout the resource we have embedded python notebooks that will allow the user to observe results after changing parameters. In addition, through Examples, the user will be able to interface with SimPEG, our open-source modelling and simulation package, so that he/she can generate their own codes and test results or carry out further exploration of a topic.