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@@ -7,7 +7,7 @@
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>Remote Sensing for OSINT - 3&nbsp; Data Acquisition</title>
<title>Remote Sensing for OSINT - Data Acquisition</title>
<style>
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
@@ -168,20 +168,17 @@ 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="./index.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Overview</span></span></a>
<a href="./index.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Overview</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./A2_Remote_Sensing.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Remote Sensing</span></span></a>
<a href="./A2_Remote_Sensing.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Remote Sensing</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./A3_Data_Acquisition.html" class="sidebar-item-text sidebar-link active">
<span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">Data Acquisition</span></span></a>
<a href="./A3_Data_Acquisition.html" class="sidebar-item-text sidebar-link active"><span class="chapter-title">Data Acquisition</span></a>
</div>
</li>
</ul>
@@ -197,26 +194,22 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<ul id="quarto-sidebar-section-2" class="collapse list-unstyled sidebar-section depth1 ">
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./B1_Getting_Started.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Getting Started</span></span></a>
<a href="./B1_Getting_Started.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Getting Started</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./B2_Interpreting_Images.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Interpreting Images</span></span></a>
<a href="./B2_Interpreting_Images.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Interpreting Images</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./B3_Image_Series.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Image Series</span></span></a>
<a href="./B3_Image_Series.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Image Series</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./B4_Vectors_Tables.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">7</span>&nbsp; <span class="chapter-title">Vectors and Tables</span></span></a>
<a href="./B4_Vectors_Tables.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Vectors and Tables</span></a>
</div>
</li>
</ul>
@@ -232,32 +225,27 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<ul id="quarto-sidebar-section-3" class="collapse list-unstyled sidebar-section depth1 ">
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./C1_Lights.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">8</span>&nbsp; <span class="chapter-title">War at Night</span></span></a>
<a href="./C1_Lights.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">War at Night</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./C2_Refineries.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">9</span>&nbsp; <span class="chapter-title">Refinery Identification</span></span></a>
<a href="./C2_Refineries.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Refinery Identification</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./C3_Blast.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">10</span>&nbsp; <span class="chapter-title">Blast Damage Assessment</span></span></a>
<a href="./C3_Blast.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Blast Damage Assessment</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./C4_Ships.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">11</span>&nbsp; <span class="chapter-title">Ship Detection</span></span></a>
<a href="./C4_Ships.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Ship Detection</span></a>
</div>
</li>
<li class="sidebar-item">
<div class="sidebar-item-container">
<a href="./C5_Object_Detection.html" class="sidebar-item-text sidebar-link">
<span class="menu-text"><span class="chapter-number">12</span>&nbsp; <span class="chapter-title">Object Detection</span></span></a>
<a href="./C5_Object_Detection.html" class="sidebar-item-text sidebar-link"><span class="chapter-title">Object Detection</span></a>
</div>
</li>
</ul>
@@ -272,52 +260,52 @@ 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="header-section-number">3.1</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="header-section-number">3.2</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="header-section-number">3.3</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="header-section-number">3.4</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="header-section-number">3.5</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="header-section-number">3.6</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="header-section-number">3.7</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="header-section-number">3.8</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="header-section-number">3.9</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="header-section-number">3.10</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>
@@ -330,7 +318,7 @@ gtag('config', 'G-RK9ZLZQ6GL', { 'anonymize_ip': true});
<header id="title-block-header" class="quarto-title-block default">
<div class="quarto-title">
<h1 class="title"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">Data Acquisition</span></h1>
<h1 class="title"><span class="chapter-title">Data Acquisition</span></h1>
</div>
@@ -347,11 +335,11 @@ 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 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 catalog, 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 catalog. The datasets listed under each heading are <strong>not</strong> an exhaustive list– there are over 500 in the whole catalog, 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="3.1">
<h2 data-number="3.1" class="anchored" data-anchor-id="optical-imagery"><span class="header-section-number">3.1</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/obj_det3.jpg" class="img-fluid figure-img"></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="./C5_Object_Detection.html">object detection</a> tutorial.</figcaption><p></p>
</figure>
</div>
@@ -472,11 +460,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="radar-imagery" class="level2" data-number="3.2">
<h2 data-number="3.2" class="anchored" data-anchor-id="radar-imagery"><span class="header-section-number">3.2</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>
<p><img src="images/radar ships.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Ships and interference from a radar system are visible in Zhuanghe Wan, near North Korea.</figcaption><p></p>
</figure>
</div>
@@ -512,11 +500,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="nighttime-lights" class="level2" data-number="3.3">
<h2 data-number="3.3" class="anchored" data-anchor-id="nighttime-lights"><span class="header-section-number">3.3</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>
<p><img src="images/Figure_1.gif" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">A timelapse of nighttime lights over Northern Iraq showing the capture and liberation of Mosul by ISIS.</figcaption><p></p>
</figure>
</div>
@@ -558,11 +546,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="climate-and-atmospheric-data" class="level2" data-number="3.4">
<h2 data-number="3.4" class="anchored" data-anchor-id="climate-and-atmospheric-data"><span class="header-section-number">3.4</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" style="width:100.0%"></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>
@@ -608,11 +596,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="mineral-deposits" class="level2" data-number="3.5">
<h2 data-number="3.5" class="anchored" data-anchor-id="mineral-deposits"><span class="header-section-number">3.5</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>
<p><img src="images/mining.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Zinc deposits across Central Africa</figcaption><p></p>
</figure>
</div>
@@ -647,11 +635,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="fires" class="level2" data-number="3.6">
<h2 data-number="3.6" class="anchored" data-anchor-id="fires"><span class="header-section-number">3.6</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>
<p><img src="images/fires.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Detected fires over Ukraine since 27/02/2022 showing the frontline of the war</figcaption><p></p>
</figure>
</div>
@@ -696,11 +684,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="population-density-estimates" class="level2" data-number="3.7">
<h2 data-number="3.7" class="anchored" data-anchor-id="population-density-estimates"><span class="header-section-number">3.7</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>
<p><img src="images/pop.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Population density estimates around Pyongyang, North Korea</figcaption><p></p>
</figure>
</div>
@@ -745,11 +733,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="building-footprints" class="level2" data-number="3.8">
<h2 data-number="3.8" class="anchored" data-anchor-id="building-footprints"><span class="header-section-number">3.8</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>
<p><img src="images/footprints.png" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Building footprints in Mariupol, Ukraine colored by whether the building is damaged</figcaption><p></p>
</figure>
</div>
@@ -780,11 +768,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="administrative-boundaries" class="level2" data-number="3.9">
<h2 data-number="3.9" class="anchored" data-anchor-id="administrative-boundaries"><span class="header-section-number">3.9</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>
<p><img src="images/fao_gaul.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Second-level administrative boundaries in Yemen</figcaption><p></p>
</figure>
</div>
@@ -818,11 +806,11 @@ C--&gt;H
</table>
</section>
</section>
<section id="global-power-plant-database" class="level2" data-number="3.10">
<h2 data-number="3.10" class="anchored" data-anchor-id="global-power-plant-database"><span class="header-section-number">3.10</span> Global Power Plant Database</h2>
<section id="global-power-plant-database" class="level2">
<h2 class="anchored" data-anchor-id="global-power-plant-database">Global Power Plant Database</h2>
<div class="quarto-figure quarto-figure-center">
<figure class="figure">
<p><img src="../images/power.jpg" class="img-fluid figure-img"></p>
<p><img src="images/power.jpg" class="img-fluid figure-img"></p>
<p></p><figcaption class="figure-caption">Power plants in Ukraine colored by type</figcaption><p></p>
</figure>
</div>
@@ -1212,12 +1200,12 @@ window.document.addEventListener("DOMContentLoaded", function (event) {
<nav class="page-navigation">
<div class="nav-page nav-page-previous">
<a href="./A2_Remote_Sensing.html" class="pagination-link">
<i class="bi bi-arrow-left-short"></i> <span class="nav-page-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Remote Sensing</span></span>
<i class="bi bi-arrow-left-short"></i> <span class="nav-page-text"><span class="chapter-title">Remote Sensing</span></span>
</a>
</div>
<div class="nav-page nav-page-next">
<a href="./B1_Getting_Started.html" class="pagination-link">
<span class="nav-page-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Getting Started</span></span> <i class="bi bi-arrow-right-short"></i>
<span class="nav-page-text"><span class="chapter-title">Getting Started</span></span> <i class="bi bi-arrow-right-short"></i>
</a>
</div>
</nav>