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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>Google Earth Engine for OSINT - 2&nbsp; Data Acquisition</title>
<title>Remote Sensing for OSINT - Data Acquisition</title>
<style>
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
@@ -86,7 +86,7 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<header id="quarto-header" class="headroom fixed-top">
<nav class="quarto-secondary-nav" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
<div class="container-fluid d-flex justify-content-between">
<h1 class="quarto-secondary-nav-title"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Data Acquisition</span></h1>
<h1 class="quarto-secondary-nav-title">Data Acquisition</h1>
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@@ -102,19 +102,21 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<img src="./logo_white.png" alt="" class="sidebar-logo py-0 d-lg-inline d-none">
</a>
<div class="sidebar-title mb-0 py-0">
<a href="./">Google Earth Engine for OSINT</a>
<a href="./">Remote Sensing for OSINT</a>
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<a href="https://github.com/oballinger/GEE_OSINT/" title="Source Code" class="sidebar-tool px-1"><i class="bi bi-github"></i></a>
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-for-OSINT.pdf">
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@@ -146,14 +148,9 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
</div>
<div class="sidebar-menu-container">
<ul class="list-unstyled mt-1">
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./index.html" class="sidebar-item-text sidebar-link">Introduction</a>
</div>
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<li class="sidebar-item sidebar-item-section">
<div class="sidebar-item-container">
<a class="sidebar-item-text sidebar-link text-start" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar-section-1" aria-expanded="true">Learning</a>
<a class="sidebar-item-text sidebar-link text-start" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar-section-1" aria-expanded="true">A. Introduction</a>
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<i class="bi bi-chevron-right ms-2"></i>
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@@ -161,49 +158,59 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<ul id="quarto-sidebar-section-1" class="collapse list-unstyled sidebar-section depth1 show">
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./ch1.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Remote Sensing</span></a>
<a href="./index.html" class="sidebar-item-text sidebar-link">Overview</a>
</div>
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<a href="./ch2.html" class="sidebar-item-text sidebar-link active"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Data Acquisition</span></a>
<a href="./ch1.html" class="sidebar-item-text sidebar-link">Remote Sensing</a>
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<a href="./F2.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Interpreting Images</span></a>
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<a href="./F4.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Interpreting Image Series</span></a>
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<a href="./F5.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Vectors and Tables</span></a>
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<a href="./F6.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">7</span>&nbsp; <span class="chapter-title">Advanced Topics</span></a>
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<a href="./F1.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Getting Started</span></a>
</div>
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<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./F2.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Interpreting Images</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./F4.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">Image Series</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./F5.html" class="sidebar-item-text sidebar-link"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Vectors and Tables</span></a>
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<a href="./lights.html" class="sidebar-item-text sidebar-link">War at Night</a>
@@ -223,6 +230,11 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<div class="sidebar-item-container">
<a href="./blast.html" class="sidebar-item-text sidebar-link">Blast Damage Assessment</a>
</div>
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<div class="sidebar-item-container">
<a href="./object_detection.html" class="sidebar-item-text sidebar-link">Object Detection</a>
</div>
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</li>
@@ -235,52 +247,52 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<h2 id="toc-title">Table of contents</h2>
<ul>
<li><a href="#optical-imagery" id="toc-optical-imagery" class="nav-link active" data-scroll-target="#optical-imagery"><span class="toc-section-number">2.1</span> Optical Imagery</a>
<li><a href="#optical-imagery" id="toc-optical-imagery" class="nav-link active" data-scroll-target="#optical-imagery">Optical Imagery</a>
<ul class="collapse">
<li><a href="#applications" id="toc-applications" class="nav-link" data-scroll-target="#applications">Applications</a></li>
<li><a href="#datasets" id="toc-datasets" class="nav-link" data-scroll-target="#datasets">Datasets</a></li>
</ul></li>
<li><a href="#radar-imagery" id="toc-radar-imagery" class="nav-link" data-scroll-target="#radar-imagery"><span class="toc-section-number">2.2</span> Radar Imagery</a>
<li><a href="#radar-imagery" id="toc-radar-imagery" class="nav-link" data-scroll-target="#radar-imagery">Radar Imagery</a>
<ul class="collapse">
<li><a href="#applications-1" id="toc-applications-1" class="nav-link" data-scroll-target="#applications-1">Applications</a></li>
<li><a href="#datasets-1" id="toc-datasets-1" class="nav-link" data-scroll-target="#datasets-1">Datasets</a></li>
</ul></li>
<li><a href="#nighttime-lights" id="toc-nighttime-lights" class="nav-link" data-scroll-target="#nighttime-lights"><span class="toc-section-number">2.3</span> Nighttime Lights</a>
<li><a href="#nighttime-lights" id="toc-nighttime-lights" class="nav-link" data-scroll-target="#nighttime-lights">Nighttime Lights</a>
<ul class="collapse">
<li><a href="#applications-2" id="toc-applications-2" class="nav-link" data-scroll-target="#applications-2">Applications</a></li>
<li><a href="#datasets-2" id="toc-datasets-2" class="nav-link" data-scroll-target="#datasets-2">Datasets</a></li>
</ul></li>
<li><a href="#climate-and-atmospheric-data" id="toc-climate-and-atmospheric-data" class="nav-link" data-scroll-target="#climate-and-atmospheric-data"><span class="toc-section-number">2.4</span> Climate and Atmospheric Data</a>
<li><a href="#climate-and-atmospheric-data" id="toc-climate-and-atmospheric-data" class="nav-link" data-scroll-target="#climate-and-atmospheric-data">Climate and Atmospheric Data</a>
<ul class="collapse">
<li><a href="#applications-3" id="toc-applications-3" class="nav-link" data-scroll-target="#applications-3">Applications</a></li>
<li><a href="#datasets-3" id="toc-datasets-3" class="nav-link" data-scroll-target="#datasets-3">Datasets</a></li>
</ul></li>
<li><a href="#mineral-deposits" id="toc-mineral-deposits" class="nav-link" data-scroll-target="#mineral-deposits"><span class="toc-section-number">2.5</span> Mineral Deposits</a>
<li><a href="#mineral-deposits" id="toc-mineral-deposits" class="nav-link" data-scroll-target="#mineral-deposits">Mineral Deposits</a>
<ul class="collapse">
<li><a href="#applications-4" id="toc-applications-4" class="nav-link" data-scroll-target="#applications-4">Applications</a></li>
<li><a href="#datasets-4" id="toc-datasets-4" class="nav-link" data-scroll-target="#datasets-4">Datasets</a></li>
</ul></li>
<li><a href="#fires" id="toc-fires" class="nav-link" data-scroll-target="#fires"><span class="toc-section-number">2.6</span> Fires</a>
<li><a href="#fires" id="toc-fires" class="nav-link" data-scroll-target="#fires">Fires</a>
<ul class="collapse">
<li><a href="#applications-5" id="toc-applications-5" class="nav-link" data-scroll-target="#applications-5">Applications</a></li>
<li><a href="#datasets-5" id="toc-datasets-5" class="nav-link" data-scroll-target="#datasets-5">Datasets</a></li>
</ul></li>
<li><a href="#population-density-estimates" id="toc-population-density-estimates" class="nav-link" data-scroll-target="#population-density-estimates"><span class="toc-section-number">2.7</span> Population Density Estimates</a>
<li><a href="#population-density-estimates" id="toc-population-density-estimates" class="nav-link" data-scroll-target="#population-density-estimates">Population Density Estimates</a>
<ul class="collapse">
<li><a href="#applications-6" id="toc-applications-6" class="nav-link" data-scroll-target="#applications-6">Applications:</a></li>
<li><a href="#datasets-6" id="toc-datasets-6" class="nav-link" data-scroll-target="#datasets-6">Datasets</a></li>
</ul></li>
<li><a href="#building-footprints" id="toc-building-footprints" class="nav-link" data-scroll-target="#building-footprints"><span class="toc-section-number">2.8</span> Building Footprints</a>
<li><a href="#building-footprints" id="toc-building-footprints" class="nav-link" data-scroll-target="#building-footprints">Building Footprints</a>
<ul class="collapse">
<li><a href="#applications-7" id="toc-applications-7" class="nav-link" data-scroll-target="#applications-7">Applications:</a></li>
<li><a href="#datasets-7" id="toc-datasets-7" class="nav-link" data-scroll-target="#datasets-7">Datasets</a></li>
</ul></li>
<li><a href="#administrative-boundaries" id="toc-administrative-boundaries" class="nav-link" data-scroll-target="#administrative-boundaries"><span class="toc-section-number">2.9</span> Administrative Boundaries</a>
<li><a href="#administrative-boundaries" id="toc-administrative-boundaries" class="nav-link" data-scroll-target="#administrative-boundaries">Administrative Boundaries</a>
<ul class="collapse">
<li><a href="#applications-8" id="toc-applications-8" class="nav-link" data-scroll-target="#applications-8">Applications</a></li>
<li><a href="#datasets-8" id="toc-datasets-8" class="nav-link" data-scroll-target="#datasets-8">Datasets</a></li>
</ul></li>
<li><a href="#global-power-plant-database" id="toc-global-power-plant-database" class="nav-link" data-scroll-target="#global-power-plant-database"><span class="toc-section-number">2.10</span> Global Power Plant Database</a>
<li><a href="#global-power-plant-database" id="toc-global-power-plant-database" class="nav-link" data-scroll-target="#global-power-plant-database">Global Power Plant Database</a>
<ul class="collapse">
<li><a href="#applications-9" id="toc-applications-9" class="nav-link" data-scroll-target="#applications-9">Applications:</a></li>
<li><a href="#datasets-9" id="toc-datasets-9" class="nav-link" data-scroll-target="#datasets-9">Datasets</a></li>
@@ -293,7 +305,7 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<header id="title-block-header" class="quarto-title-block default">
<div class="quarto-title">
<h1 class="title d-none d-lg-block"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Data Acquisition</span></h1>
<h1 class="title d-none d-lg-block">Data Acquisition</h1>
</div>
@@ -310,12 +322,12 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<p>One of the main advantages of GEE is that it hosts several Petabytes of satellite imagery and other spatial data sets, <a href="https://developers.google.com/earth-engine/datasets">all in one place</a>. Among these are a many that could prove useful to those investigating illegal mining and logging, estimating conflict-induced damage, monitoring pollution from extractive industries, conducting maritime surveillance without relying on ship transponders, verifying the locations of artillery strikes, tracking missile defense systems, and many other topics.</p>
<p>This section highlights ten categories of geospatial data available natively in the GEE catalogue ranging from optical satellite imagery, to atmospheric data, to building footprints. Each sub-section provides an overview of the given data type, suggests potential applications, and lists the corresponding datasets in the GEE catalogue. The datasets listed under each heading are <strong>not</strong> an exhaustive list– there are over 500 in the whole catalogue, and the ones listed in this section are simply the ones with the most immediate relevance to open source investigations. If a particular geospatial dataset you want to work with isn’t hosted in the GEE catalog, you can upload your own data. We’ll cover that in the next section.</p>
<section id="optical-imagery" class="level2" data-number="2.1">
<h2 data-number="2.1" class="anchored" data-anchor-id="optical-imagery"><span class="header-section-number">2.1</span> Optical Imagery</h2>
<section id="optical-imagery" class="level2">
<h2 class="anchored" data-anchor-id="optical-imagery">Optical Imagery</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/hasankeyf.gif" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Sentinel-2 timelapse showing the ancient city of Hasankeyf being flooded following the construction of a dam by the Turkish government.</figcaption><p></p>
<p><img src="./images/obj_det3.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Automatic detection of vehicles using artificial intelligence in high resolution optical imagery. See the <a href="./object_detection.html">object detection</a> tutorial.</figcaption><p></p>
</figure>
</div>
<p>Optical satellite imagery is the bread and butter of many open source investiagtions. It would be tough to list off all of the possible use cases, so here’s a handy flowchart:</p>
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</table>
</section>
</section>
<section id="radar-imagery" class="level2" data-number="2.2">
<h2 data-number="2.2" class="anchored" data-anchor-id="radar-imagery"><span class="header-section-number">2.2</span> Radar Imagery</h2>
<section id="radar-imagery" class="level2">
<h2 class="anchored" data-anchor-id="radar-imagery">Radar Imagery</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/radar ships.jpg" class="img-fluid figure-img"></p>
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</table>
</section>
</section>
<section id="nighttime-lights" class="level2" data-number="2.3">
<h2 data-number="2.3" class="anchored" data-anchor-id="nighttime-lights"><span class="header-section-number">2.3</span> Nighttime Lights</h2>
<section id="nighttime-lights" class="level2">
<h2 class="anchored" data-anchor-id="nighttime-lights">Nighttime Lights</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/Figure_1.gif" class="img-fluid figure-img"></p>
@@ -523,11 +535,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="climate-and-atmospheric-data" class="level2" data-number="2.4">
<h2 data-number="2.4" class="anchored" data-anchor-id="climate-and-atmospheric-data"><span class="header-section-number">2.4</span> Climate and Atmospheric Data</h2>
<section id="climate-and-atmospheric-data" class="level2">
<h2 class="anchored" data-anchor-id="climate-and-atmospheric-data">Climate and Atmospheric Data</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/mishraq_small.gif" class="img-fluid figure-img"></p>
<p><img src="./images/mishraq_small.gif" class="img-fluid figure-img" style="width:100.0%"></p>
<p></p><figcaption class="figure-caption">Sulphur Dioxide plume resulting from ISIS attack on the Al-Mishraq Sulphur Plant in Iraq</figcaption><p></p>
</figure>
</div>
@@ -573,8 +585,8 @@ C--&gt;H
</table>
</section>
</section>
<section id="mineral-deposits" class="level2" data-number="2.5">
<h2 data-number="2.5" class="anchored" data-anchor-id="mineral-deposits"><span class="header-section-number">2.5</span> Mineral Deposits</h2>
<section id="mineral-deposits" class="level2">
<h2 class="anchored" data-anchor-id="mineral-deposits">Mineral Deposits</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/mining.jpg" class="img-fluid figure-img"></p>
@@ -612,8 +624,8 @@ C--&gt;H
</table>
</section>
</section>
<section id="fires" class="level2" data-number="2.6">
<h2 data-number="2.6" class="anchored" data-anchor-id="fires"><span class="header-section-number">2.6</span> Fires</h2>
<section id="fires" class="level2">
<h2 class="anchored" data-anchor-id="fires">Fires</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/fires.jpg" class="img-fluid figure-img"></p>
@@ -661,8 +673,8 @@ C--&gt;H
</table>
</section>
</section>
<section id="population-density-estimates" class="level2" data-number="2.7">
<h2 data-number="2.7" class="anchored" data-anchor-id="population-density-estimates"><span class="header-section-number">2.7</span> Population Density Estimates</h2>
<section id="population-density-estimates" class="level2">
<h2 class="anchored" data-anchor-id="population-density-estimates">Population Density Estimates</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/pop.jpg" class="img-fluid figure-img"></p>
@@ -710,8 +722,8 @@ C--&gt;H
</table>
</section>
</section>
<section id="building-footprints" class="level2" data-number="2.8">
<h2 data-number="2.8" class="anchored" data-anchor-id="building-footprints"><span class="header-section-number">2.8</span> Building Footprints</h2>
<section id="building-footprints" class="level2">
<h2 class="anchored" data-anchor-id="building-footprints">Building Footprints</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/footprints.png" class="img-fluid figure-img"></p>
@@ -745,8 +757,8 @@ C--&gt;H
</table>
</section>
</section>
<section id="administrative-boundaries" class="level2" data-number="2.9">
<h2 data-number="2.9" class="anchored" data-anchor-id="administrative-boundaries"><span class="header-section-number">2.9</span> Administrative Boundaries</h2>
<section id="administrative-boundaries" class="level2">
<h2 class="anchored" data-anchor-id="administrative-boundaries">Administrative Boundaries</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="./images/fao_gaul.jpg" class="img-fluid figure-img"></p>
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</table>
</section>
</section>
<section id="global-power-plant-database" class="level2" data-number="2.10">
<h2 data-number="2.10" class="anchored" data-anchor-id="global-power-plant-database"><span class="header-section-number">2.10</span> Global Power Plant Database</h2>
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<h2 class="anchored" data-anchor-id="global-power-plant-database">Global Power Plant Database</h2>
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