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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Computer-Oriented Geoscience Lab</title>
<link rel="shortcut icon" href="images/favicon.png"/>
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<meta property="og:title" content="Computer-Oriented Geoscience Lab" />
<meta property="og:description" content="At the Computer-Oriented Geoscience Lab, we design state-of-the-art computational tools for the Geosciences. Source code included." />
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<img src="images/compgeolab-banner.svg" alt="Computer-Oriented Geoscience Lab">
</a>
<nav aria-label="Main">
<ul class="list-inline" role="list">
<li>
<a class="active" aria-current="page" href=".">Home</a>
</li>
<li>
<a class="" href="news/">News</a>
</li>
<li>
<a class="" href="team/">Team</a>
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<li>
<a class="" href="research/">Research</a>
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<a class="" href="manual/">Manual</a>
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<main class="flow">
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<h1>Geophysical research powered by open-source software</h1>
<p>At the <strong>Computer-Oriented Geoscience Lab</strong>, we design
state-of-the-art computational tools for the Geosciences.
<strong>Source code included.</strong>
</p>
<ul class="list-inline" role="list">
<li>
<a class="" href="team/">Meet the team</a>
</li>
<li>
<a class="" href="research/">Our research</a>
</li>
<li>
<a class="" href="manual/">Lab manual</a>
</li>
<li>
<a href="https://github.com/compgeolab" target="_blank"><i class="fab fa-github" aria-label="hidden"></i> GitHub</a>
</li>
</ul>
</div>
</div>
<div class="content flow extra-space">
<h2>News from the lab</h2>
<p>
The latest news and updates from CompGeoLab members.
</p>
<ul class="flow fa-ul">
<li>
<i class="fa-li far fa-arrow-alt-circle-right fa-fw" aria-hidden="true"></i>
<a class="text-bold" href="news/euler-inversion-preprint.html">A better method for locating sources of gravity and magnetic anomalies</a>
<br>
<span class="font-small text-muted">We have a new preprint out on EarthArXiv which introduces Euler inversion, a new method for finding the location and approximate geometry of sources of gravity and magnetic anomalies. We’re very...</span>
</li>
<li>
<i class="fa-li far fa-arrow-alt-circle-right fa-fw" aria-hidden="true"></i>
<a class="text-bold" href="news/escola-verao-iag-2024.html">CompGeoLab oferecerá curso na Escola de Verão de Geofísica do IAG "Kit de sobrevivência digital para cientistas"</a>
<br>
<span class="font-small text-muted">Em 2025, o CompGeoLab oferecerá um minicurso de 15h na XXVII Escola de Verão de Geofísica do IAG - USP. O curso “Kit de sobrevivência digital para cientistas” tem como objetivo ensinar o uso de...</span>
</li>
<li>
<i class="fa-li far fa-arrow-alt-circle-right fa-fw" aria-hidden="true"></i>
<a class="text-bold" href="news/simbgf2024.html">The lab at the 2024 Symposium of Brazilian Geophysical Society</a>
<br>
<span class="font-small text-muted">Last week, me and lab member Ellen Fernandes Marcos attended the 10th Symposium of the Brazilian Geophysical Society, held at the beautiful Salvador in the state of Bahia, northeastern Brazil....</span>
</li>
</ul>
<p>
More news items can be found in: <a href="news/index.html">News and lab updates</a>.
</p>
<h2 id="about-us">About us</h2>
<p>The <strong>CompGeoLab</strong> is a
<a href="team/">research group</a>
based at the
<a href="https://www.iag.usp.br/">Universidade de São Paulo</a>, Brazil.
We are experts in solving <strong>inverse problems</strong> in the field of <strong>Geophysics</strong>,
particularly in <strong>gravity and magnetic methods</strong> (AKA potential-field methods).
Inverse problems are the means by which geoscientists <strong>image the inside</strong> of
the Earth and other planets.
For example, we are able to determine the inner density distribution of the
Earth from measured disturbances in the Earth’s gravity field.
We are also champions of <strong>open science</strong> and <strong>reproducible research</strong>.
All of our teaching and research efforts are symbiotic with the development of
<strong>open source software</strong> for geoscience.</p>
<div class="callout">
<p><strong>Want to work with us?</strong>
Have a look at the <a href="manual/index.html">Lab manual</a>, which
outlines our core principles as scientists and how we operate as a team.</p>
</div>
<figure>
<img src="images/research-highlights.jpg" alt="Figure with four panels. Top left is a map showing red and blue blobs and black squares surrounding each one. Top right is a map of Antarctica with red and blue points overlaid covering a large portion of the continent. Bottom left is a spherical 8-sided prism on top of the globe with white lines showing how it's broken up irregularly. Bottom right are two maps of South America, one colored green to yellow representing the Moho depth, larger around the Andes and smaller in towards the Atlantic coast, the other has scattered colored dots showing larger differences in the Andes and smaller elsewhere." style="">
<figcaption>Example research outputs. <strong>Top left:</strong> automatic detection of anomalies in magnetic microscopy data. <strong>Top right:</strong> compilation of airborne magnetic data for Antarctica. <strong>Bottom left:</strong> a tesseroid (spherical prism) discretized with our adaptive algorithm for gravity modeling. <strong>Bottom right:</strong> estimated Moho depth for South America from gravity data (left) and the misfit with seismological estimates (right).</figcaption>
</figure>
<h2 id="open-source">Open source</h2>
<p>Our team works on several tools and projects, both developed in-house and
across the larger scientific ecosystem:</p>
<ul>
<li><a href="https://www.fatiando.org/"><strong>Fatiando a Terra</strong></a>: A collection of Python tools for
geophysics. The Fatiando tools are the heart of most of our research and
teaching efforts. This is the main project on which we work.</li>
<li><a href="https://www.compgeolab.org/xlandsat"><strong>xlandsat</strong></a>: A small Python library for loading and analyzing
Landsat scenes downloaded from <a href="https://earthexplorer.usgs.gov/">USGS EarthExplorer</a> with the power
of xarray into <a href="https://xarray.dev/">xarray</a>.</li>
<li><a href="https://www.generic-mapping-tools.org/"><strong>The Generic Mapping Tools</strong></a>: One of the most widely used and loved
open-source software in the geosciences. Our team contributes to both GMT and
the <a href="https://www.pygmt.org">PyGMT</a> library which brings all the power of GMT to the
Python stack.</li>
<li><a href="https://tesseroids.leouieda.com/"><strong>Tesseroids</strong></a>: A collection of command-line programs for
modeling the gravitational potential, acceleration, and gradient tensor.
Tesseroids supports models and computation grids in Cartesian and spherical
coordinates.</li>
</ul>
<p>We also <strong>publish all of the code and data</strong> needed to reproduce our projects
on <a href="https://github.com/compgeolab">our <i class="fab fa-github" aria-hidden="true"></i> GitHub organization</a>.</p>
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<div class="font-small">
<p class="text-bold">
Departamento de Geofísica
•
Instituto de Astronomia, Geofísica e Ciências Atmosféricas
•
Universidade de São Paulo
•
Brasil
</p>
<p>
Last updated on 05 February 2025.
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Copyright © 2025 Leonardo Uieda.
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