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<!DOCTYPE html>
<html>
<head>
<title>SimPEG: Simulation and Parameter Estimation in Geophysics</title>
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<ul class="nav">
<li><a href="/why.html">Why</a></li>
<li><a href="#methods">About</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#contribute">Contribute</a></li>
<li>
<a href="https://github.com/simpeg" title="GitHub">
<i class="fab fa-github fa-lg"></i>
</a>
</li>
<li>
<a
href="https://mattermost.softwareunderground.org/simpeg"
title="Mattermost"
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<div class="container">
<center><img src="/img/logo-block.png" width="30%"></center>
<h1 style="text-align:center;color:#333;">Simulation and Parameter Estimation in Geophysics</h1>
<div style="margin: 50px 0;">
<p style="text-align:center;">An open source python package for simulation and gradient based parameter estimation in geophysical applications.</p>
</div>
<h2 id="methods">Geophysical Methods</h2>
<p>
Contribute to a growing community of geoscientists building an open foundation for geophysics.
SimPEG provides a collection of geophysical simulation and inversion tools that are built in a
consistent framework.
</p>
<div class="columns">
<div class="column">
<ul>
<li>Gravity</li>
<li>Magnetics</li>
<li>Direct current resistivity</li>
<li>Induced polarization</li>
<li>Electromagnetics</li>
<ul>
<li>Time domain</li>
<li>Frequency domain</li>
<li>Natural source (e.g. Magnetotellurics)</li>
<li>Viscous remanent magnetization</li>
</ul>
<li>Richards Equation</li>
</ul>
</div>
<div class="column">
<img src="/img/vtki_laguna_del_maule.png" width="90%">
</div>
</div>
<h2 id="simulations">Forward Simulations</h2>
<p>
Finite volume tools that work across many different discretizations and dimensions.
Simulate your geophysical method in 1D, 2D, 2.5D, 3D and through time.
Refine around areas of interest using an OcTree.
</p>
<div class="columns">
<div class="column">
<ul>
<li>Tensor mesh</li>
<li>OcTree mesh</li>
<li>QuadTree mesh</li>
<li>Logicaly rectangular mesh</li>
<li>Cylindrical mesh</li>
<br>
<li>Access to derivatives</li>
<li>Plotting utilities</li>
<li>VTK export</li>
</ul>
</div>
<div class="column">
<img src="/img/finite-volume.png" style="width:90%;">
</div>
</div>
<h2 id="inversion">Inversion Components</h2>
<p>
The SimPEG inversion framework is modular, allowing you to explore, experiment
and iterate over a variety of approaches to the inverse problem.
</p>
<div class="columns">
<div class="column">
<ul>
<li>Optimization</li>
<li>Regularization</li>
<li>Data misfits</li>
<li>Parametric models</li>
<li>Joint inversions</li>
</ul>
</div>
<div class="column">
<img src="/img/simpeg-framework-v2.png" style="width:90%;">
</div>
</div>
<h2 id="start">🚀 Get Started 🚀</h2>
<p>
The easiest way to install SimPEG is from
<a href="https://pypi.python.org/pypi/simpeg">PyPI</a>, using
<a href="https://pypi.python.org/pypi/pip">pip</a>. If you get stuck or have
no idea what a <i>pip</i> is, jump on
<a href="https://mattermost.softwareunderground.org/simpeg">Mattermost</a> or
<a href="https://simpeg.discourse.group">Discourse</a> to ask the community a
question!!
</p>
<div class="columns">
<div class="column">
<ul class="icons">
<li>
<i class="fab fa-python fa-lg"></i>
<a href="https://docs.simpeg.xyz/latest/content/getting_started/installing.html">
Install SimPEG
</a>
</li>
<li>
<i class="fas fa-book fa-lg"></i>
<a href="https://docs.simpeg.xyz">
Read the documentation
</a>
</li>
<li>
<i class="fas fa-book-reader fa-lg"></i>
<a href="https://simpeg.xyz/user-tutorials" title="User Tutorials">
Learn from the User Tutorials
</a>
</li>
<li>
<i class="fab fa-discourse fa-lg"></i>
<a href="https://simpeg.discourse.group">
Join the community forum
</a>
</li>
<li>
<i class="fas fa-comment fa-lg"></i>
<a href="https://mattermost.softwareunderground.org/simpeg">
Chat to scientists and developers
</a>
</li>
<li>
<i class="fas fa-copy fa-lg"></i>
<a href="https://doi.org/10.1016/j.cageo.2015.09.015">
Read the SimPEG paper
</a>
</li>
<li>
<i class="fab fa-github fa-lg"></i>
<a href="https://github.com/simpeg/simpeg">
Read some code
</a>
</li>
</ul>
</div>
<div class="column">
<iframe width="90%" height="200" src="//www.youtube.com/embed/yUm01YsS9hQ" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<h2 id="contact">📢 Contacting Us 📢</h2>
Please don't hesitate to reach out and ask a question! We love to hear about how people are using or want to use SimPEG!
<p>
<ul class="icons">
<li>
<i class="fas fa-envelope fa-lg"></i
><a
href="https://cdn.forms-content.sg-form.com/ed4ab287-df4b-11eb-88f6-421855200eee"
>Sign up for the newsletter</a
>
</li>
<li>
<i class="fab fa-discourse fa-lg"></i>Join the community forum on
<a href="https://simpeg.discourse.group">Discourse</a>
</li>
<li>
<i class="fas fa-comment fa-lg"></i>Send us a message on
<a href="https://mattermost.softwareunderground.org/simpeg">Mattermost</a>
</li>
<li>
<i class="fab fa-github fa-lg"></i>Contact us on
<a href="https://github.com/simpeg">GitHub</a> by creating a
<a href="https://github.com/simpeg/simpeg/issues/new">new issue</a>
</li>
<li>
<i class="fab fa-youtube fa-lg"></i>Join a weekly meeting organized on
<a href="https://mattermost.softwareunderground.org/simpeg">Mattermost</a>
or see previous meetings on
<a href="https://www.youtube.com/c/geoscixyz">YouTube</a>
</li>
</ul>
</p>
<h2 id="contribute">🙌 Contribute 🙌</h2>
<p>
SimPEG is a community of scientists and volunteers who are excited to help you out,
please give back to the community by sharing your successes and citing the project!
Here are some ways you can contribute:
<ul class="icons">
<li><i class="fas fa-bullhorn"></i>Talk about SimPEG, share links on <a href="https://twitter.com/simpegpy">social media</a>, show <a href="/img/logo.png" target="_blank">our logo</a> in your talks</li>
<li><i class="fas fa-bookmark fa-lg"></i> Cite the <a href="https://scholar.google.ca/scholar?oi=bibs&hl=en&cites=880081470240461169&as_sdt=5">papers and project</a> (see below)</li>
<li><i class="fas fa-bug fa-lg"></i><a href="https://github.com/simpeg/simpeg/issues">Submitting bugs</a> when things don't work</li>
<li><i class="fas fa-book fa-lg"></i>Fix typos and add examples to the <a href="https://docs.simpeg.xyz">documentation</a></li>
<li><i class="fa fa-terminal"></i><a href="https://github.com/simpeg/simpeg/blob/main/CONTRIBUTING.md">Contribute some code</a></li>
</ul>
</p>
<h4>SimPEG Framework Paper</h4>
<div class="code"><code>
Cockett, Rowan, Seogi Kang, Lindsey J. Heagy, Adam Pidlisecky, and Douglas W. Oldenburg. "<b>SimPEG: An Open Source Framework for Simulation and Gradient Based Parameter Estimation in Geophysical Applications</b>" Computers & Geosciences, September 2015. <a href="https://doi.org/10.1016/j.cageo.2015.09.015">doi:10.1016/j.cageo.2015.09.015</a>.
</code></div>
<h4>Electromagnetics Simulations & Inversions</h4>
<div class="code"><code>
Lindsey J. Heagy, Rowan Cockett, Seogi Kang, Gudni K. Rosenkjaer, Douglas W. Oldenburg. "<b>A framework for simulation and inversion in electromagnetics</b>" Computers & Geosciences, September 2017. <a href="https://doi.org/10.1016/j.cageo.2017.06.018">doi:10.1016/j.cageo.2017.06.018</a>
</code></div>
<h2 id="projects">Project Ecosystem</h2>
<p>
SimPEG is an ecosystem with many interrelated projects and repositories.
</p>
<div class="columns">
<div class="column">
<h3>simpeg</h3>
<p>Simulation and inversion utilities for many different geophysical methods.</p>
<ul class="icons">
<li><i class="fab fa-github fa-lg"></i><a href="https://github.com/simpeg/simpeg">simpeg/simpeg</a></li>
<li><i class="fas fa-book fa-lg"></i><a href="https://docs.simpeg.xyz">https://docs.simpeg.xyz</a></li>
<li><i class="fa fa-sync-alt fa-lg" style="color:green"></i>Stable, but changing</li>
</ul>
</div>
<div class="column">
<h3>discretize</h3>
<p>Finite volume and visualization programs for solving and inverting PDEs.</p>
<ul class="icons">
<li><i class="fab fa-github fa-lg"></i><a href="https://github.com/simpeg/discretize">simpeg/discretize</a></li>
<li><i class="fas fa-book fa-lg"></i><a href="https://discretize.simpeg.xyz">https://discretize.simpeg.xyz</a></li>
<li><i class="fa fa-check fa-lg" style="color:green"></i>Stable</li>
</ul>
</div>
</div>
<div class="columns">
<div class="column">
<h3>pymatsolver</h3>
<p>A sparse matrix solver for Python. Solving Ax = b should be easy.</p>
<ul class="icons">
<li><i class="fab fa-github fa-lg"></i><a href="https://github.com/simpeg/pymatsolver">simpeg/pymatsolver</a></li>
<li><i class="fas fa-book fa-lg"></i><a href="https://pymatsolver.readthedocs.io/">https://pymatsolver.rtfd.org</a></li>
<li><i class="fa fa-check fa-lg" style="color:green"></i>Stable</li>
</ul>
</div>
<div class="column">
<h3>geoana</h3>
<p>A collection of mostly analytic functions in geophysics.</p>
<ul class="icons">
<li><i class="fab fa-github fa-lg"></i><a href="https://github.com/simpeg/geoana">simpeg/geoana</a></li>
<li><i class="fas fa-book fa-lg"></i><a href="https://geoana.simpeg.xyz/">https://geoana.simpeg.xyz</a></li>
<li><i class="fa fa-sync-alt fa-lg" style="color:green"></i>Ready, but changing</li>
</ul>
</div>
</div>
</div>
</body>
</html>