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28 changes: 13 additions & 15 deletions _sources/content/Modul_2/en_qgis_geodata_concept.md
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Expand Up @@ -68,10 +68,10 @@ information. Which geometry is used, depends on the type of data that is represe
represented by a line, a building will be represented by polygon and a tree might be represented by a point.


```{figure} /fig/en_geometry_geodata_example.png
```{figure} /fig/en_geometry_geodata_example_2.png
---
name: geometry geodata example
width: 400
name: geometry geodata example 2
width: 400px
---
Geographic information can be an address and/or GPS coordinates
```
Expand All @@ -83,7 +83,7 @@ Geographic information can be an address and/or GPS coordinates
```{figure} /fig/Geodata_attribute_table_example.png
---
name: geodata example
width: 450px
width: 600px
---
A data table in Microsoft Excel with geographic information
```
Expand Down Expand Up @@ -125,9 +125,9 @@ A shapefile is a collection of separate files which commonly come in a single fo
```{figure} /fig/en_shapefile_structure.png
---
name: shapefile_folderstructure
width: 600 px
width: 400 px
---
__SHP, SHX__ and __DBF__ are the __mandatory files that every shapefile must contain to work properly. The SHP is the main file, it contains the geometry of the file.
__SHP, SHX__ and __DBF__ are the __mandatory__ files that every shapefile must contain to work properly. The SHP is the main file and contains the geometry.
```


Expand Down Expand Up @@ -311,13 +311,12 @@ the distortion and inaccuracy of projections for different regions on earth. You
their CRS codes on [EPSG.io](http://epsg.io).
```

These images show how different CRS distort earth in different ways.
Look at the following images and pay attention how the different Coordinate Reference Systems change and distort the world map.

```{figure} /fit/world_mercator_tissots.png
```{figure} /fig/world_mercator_tissots.png
---
width: 500 px
name: world_mercator_tissots
align: center
name: world_mercator_tissot
---
The Mercator Projection (EPSG:54004)
```
Expand Down Expand Up @@ -351,11 +350,10 @@ characteristic:

| Characteristic | Mercator (cylindrical) | Lambert cylindrical | Albers conic |
| :----------- |:--------------------: | :-----------------: | :----------: |
| Shape | [x] | [ ] | [x] |
| Rotation | [x] | [x] | [ ] |
| Area | [ ] | [x] | [x] |
| Shape | - [x] | - [ ] | - [x] |
| Rotation | - [x] | - [x] | - [ ] |
| Area | - [ ] | - [x] | - [x] |

I don't fully understand this?

#### Metric and Geographic Coordinate Reference Systems

Expand All @@ -373,7 +371,7 @@ There are two different types of Coordinate Reference System: __Geographic__ or
name: problem_distance_geographic_coords
width: 600 px
---
A geographic representation of the globe. The distance between the meridians converge towards the north and south pole.
```

#### Local and Global CRS
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32 changes: 16 additions & 16 deletions content/GIS_AA/en_qgis_historical_impact_assessment_sudan.html
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20 changes: 10 additions & 10 deletions content/GIS_AA/en_qgis_historical_impact_assessment_sudan_ex1.html
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Expand Up @@ -3349,7 +3349,7 @@ <h2>Task 8: Data export using Pivot-Table in Excel ✅<a class="headerlink" href
<p>We also want to include the Event and Flash-floods as these types can also be associated with flooding events as a result of heavy rainfall, seasonal rainfall, etc.
We also want to make sure that we rename the column containing the sum of the flooding events to <code class="docutils literal notranslate"><span class="pre">Sum</span> <span class="pre">flood</span> <span class="pre">events</span></code>.</p>
<ol class="arabic simple" start="3">
<li><p>Now we export this excel sheet as a CSV file and import it into QGIS. We will open the <code class="docutils literal notranslate"><span class="pre">Data</span> <span class="pre">Source</span> <span class="pre">Manager</span></code> and select the <code class="docutils literal notranslate"><span class="pre">Delimited</span> <span class="pre">Text</span></code> section. Here we need to do the following specifications (<a class="reference internal" href="#hia-import-csv-floods"><span class="std std-numref">Fig. 244</span></a>).</p></li>
<li><p>Now we export this excel sheet as a CSV file and import it into QGIS. We will open the <code class="docutils literal notranslate"><span class="pre">Data</span> <span class="pre">Source</span> <span class="pre">Manager</span></code> and select the <code class="docutils literal notranslate"><span class="pre">Delimited</span> <span class="pre">Text</span></code> section. Here we need to do the following specifications (<a class="reference internal" href="#hia-import-csv-floods"><span class="std std-numref">Fig. 245</span></a>).</p></li>
</ol>
</section>
<section id="task-9-data-visualization-and-analysis-in-qgis">
Expand All @@ -3373,7 +3373,7 @@ <h2>Task 9: Data visualization and analysis in QGIS<a class="headerlink" href="#
<figure class="align-default" id="hia-csv-import">
<a class="reference internal image-reference" href="../../_images/Sudan_HIA_ex_import_csv_impact.png"><img alt="../../_images/Sudan_HIA_ex_import_csv_impact.png" src="../../_images/Sudan_HIA_ex_import_csv_impact.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 241 </span><span class="caption-text">Import of the CSV data impact quantity 2020 on state level</span><a class="headerlink" href="#hia-csv-import" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 242 </span><span class="caption-text">Import of the CSV data impact quantity 2020 on state level</span><a class="headerlink" href="#hia-csv-import" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<ol class="arabic simple" start="2">
Expand All @@ -3393,7 +3393,7 @@ <h2>Task 9: Data visualization and analysis in QGIS<a class="headerlink" href="#
<figure class="align-default" id="hia-join">
<a class="reference internal image-reference" href="../../_images/Sudan_HIA_ex_join_table.png"><img alt="../../_images/Sudan_HIA_ex_join_table.png" src="../../_images/Sudan_HIA_ex_join_table.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 242 </span><span class="caption-text">Join the table information onto the geodata</span><a class="headerlink" href="#hia-join" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 243 </span><span class="caption-text">Join the table information onto the geodata</span><a class="headerlink" href="#hia-join" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<ol class="arabic simple" start="3">
Expand All @@ -3413,36 +3413,36 @@ <h2>Task 9: Data visualization and analysis in QGIS<a class="headerlink" href="#
<figure class="align-default" id="hia-map-houses">
<a class="reference internal image-reference" href="../../_images/en_HIA_map_houses.png"><img alt="../../_images/en_HIA_map_houses.png" src="../../_images/en_HIA_map_houses.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 243 </span><span class="caption-text">Example map of destroyed houses in Sudan 2020</span><a class="headerlink" href="#hia-map-houses" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 244 </span><span class="caption-text">Example map of destroyed houses in Sudan 2020</span><a class="headerlink" href="#hia-map-houses" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<p><strong>Flood events in Sudanese states for all the recorded years</strong></p>
<p>In this section we want to analyse and visualise all recorded flooding events for all the Sudanese state. With our filter for the Impact-Type we derive information for the years 2003 until 2021.</p>
<ol class="arabic simple">
<li><p>Now we impoer the file “Floods_Sudan_all_years” from the input folder. We will open the <code class="docutils literal notranslate"><span class="pre">Data</span> <span class="pre">Source</span> <span class="pre">Manager</span></code> and select the <code class="docutils literal notranslate"><span class="pre">Delimited</span> <span class="pre">Text</span></code> section. Here we need to do the following specifications (<a class="reference internal" href="#hia-import-csv-floods"><span class="std std-numref">Fig. 244</span></a>).</p></li>
<li><p>Now we impoer the file “Floods_Sudan_all_years” from the input folder. We will open the <code class="docutils literal notranslate"><span class="pre">Data</span> <span class="pre">Source</span> <span class="pre">Manager</span></code> and select the <code class="docutils literal notranslate"><span class="pre">Delimited</span> <span class="pre">Text</span></code> section. Here we need to do the following specifications (<a class="reference internal" href="#hia-import-csv-floods"><span class="std std-numref">Fig. 245</span></a>).</p></li>
</ol>
<figure class="align-default" id="hia-import-csv-floods">
<a class="reference internal image-reference" href="../../_images/en_HIA_import_csv_floods.png"><img alt="../../_images/en_HIA_import_csv_floods.png" src="../../_images/en_HIA_import_csv_floods.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 244 </span><span class="caption-text">Import of the CSV data</span><a class="headerlink" href="#hia-import-csv-floods" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 245 </span><span class="caption-text">Import of the CSV data</span><a class="headerlink" href="#hia-import-csv-floods" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<ol class="arabic simple" start="2">
<li><p>The next step follows the same logic as step 2 in the previous example. We will use geodata that contains information about the states of Sudan and join them with the imported CSV data. We will use the <code class="docutils literal notranslate"><span class="pre">Join</span> <span class="pre">attributes</span> <span class="pre">by</span> <span class="pre">field</span> <span class="pre">value</span></code> tool and select the ADM1_PCODE as the table field used for the join. An example is shown in <a class="reference internal" href="#hia-join-floods"><span class="std std-numref">Fig. 245</span></a>.</p></li>
<li><p>The next step follows the same logic as step 2 in the previous example. We will use geodata that contains information about the states of Sudan and join them with the imported CSV data. We will use the <code class="docutils literal notranslate"><span class="pre">Join</span> <span class="pre">attributes</span> <span class="pre">by</span> <span class="pre">field</span> <span class="pre">value</span></code> tool and select the ADM1_PCODE as the table field used for the join. An example is shown in <a class="reference internal" href="#hia-join-floods"><span class="std std-numref">Fig. 246</span></a>.</p></li>
</ol>
<figure class="align-default" id="hia-join-floods">
<a class="reference internal image-reference" href="../../_images/en_HIA_join_floods.png"><img alt="../../_images/en_HIA_join_floods.png" src="../../_images/en_HIA_join_floods.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 245 </span><span class="caption-text">Join the table information onto the geodata</span><a class="headerlink" href="#hia-join-floods" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 246 </span><span class="caption-text">Join the table information onto the geodata</span><a class="headerlink" href="#hia-join-floods" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<ol class="arabic simple" start="3">
<li><p>Now we can visualise our results using <code class="docutils literal notranslate"><span class="pre">Graduated</span></code> and selecting the corresponding column of the attribute table <code class="docutils literal notranslate"><span class="pre">Sum</span> <span class="pre">flood</span> <span class="pre">events</span></code>. Select an appropriate color scheme and start creating your map. Your final product could look like <a class="reference internal" href="#hia-map-floods"><span class="std std-numref">Fig. 246</span></a>.</p></li>
<li><p>Now we can visualise our results using <code class="docutils literal notranslate"><span class="pre">Graduated</span></code> and selecting the corresponding column of the attribute table <code class="docutils literal notranslate"><span class="pre">Sum</span> <span class="pre">flood</span> <span class="pre">events</span></code>. Select an appropriate color scheme and start creating your map. Your final product could look like <a class="reference internal" href="#hia-map-floods"><span class="std std-numref">Fig. 247</span></a>.</p></li>
</ol>
<figure class="align-default" id="hia-map-floods">
<a class="reference internal image-reference" href="../../_images/en_HIA_map_floods.png"><img alt="../../_images/en_HIA_map_floods.png" src="../../_images/en_HIA_map_floods.png" style="height: 500px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 246 </span><span class="caption-text">Example map</span><a class="headerlink" href="#hia-map-floods" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 247 </span><span class="caption-text">Example map</span><a class="headerlink" href="#hia-map-floods" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<div class="admonition note">
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6 changes: 3 additions & 3 deletions content/Mobile_Data_collection/en_SMT.html
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Expand Up @@ -562,7 +562,7 @@ <h2>What is the Sketch Map Tool?<a class="headerlink" href="#what-is-the-sketch-
<figure class="align-left" id="sketch-map-logo">
<a class="reference internal image-reference" href="../../_images/SketchMap_Logo_Top.jpg"><img alt="../../_images/SketchMap_Logo_Top.jpg" src="../../_images/SketchMap_Logo_Top.jpg" style="height: 200px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 247 </span><span class="caption-text">Sketch Map Tool Logo</span><a class="headerlink" href="#sketch-map-logo" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 248 </span><span class="caption-text">Sketch Map Tool Logo</span><a class="headerlink" href="#sketch-map-logo" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<p>The <a class="reference external" href="https://sketch-map-tool.heigit.org/">Sketch Map Tool</a> simplifies participatory mapping, by facilitating the creation and digitisation of paper-based maps, the so-called Sketch Maps. This low-tech solution enables the offline collection of local knowledge and perceptions with pen and paper maps. Every SketchMap contains a basemap with OpenStreetMap data or satellite imagery, which provides a scale and orientation to the user. Upon uploading pictures of marked maps, the tool automatically digitizes and georeferences the markings to download and integrate into Geographic Information Systems. The Sketch Map Tool combines widely used, analogue mapping with digital analysis, fosters community involvement and the usability of gained results.</p>
Expand Down Expand Up @@ -601,7 +601,7 @@ <h2>Introduction in the Workflow Sketch Map Tool<a class="headerlink" href="#int
<figure class="align-center" id="t">
<a class="reference internal image-reference" href="../../_images/SMT_workflow_Satelite.png"><img alt="../../_images/SMT_workflow_Satelite.png" src="../../_images/SMT_workflow_Satelite.png" style="height: 450px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 248 </span><span class="caption-text">Sketch Map Tool workflow</span><a class="headerlink" href="#t" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 249 </span><span class="caption-text">Sketch Map Tool workflow</span><a class="headerlink" href="#t" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
</section>
Expand All @@ -612,7 +612,7 @@ <h2>The Sketch Map Tool and its use in the EVCA<a class="headerlink" href="#the-
<figure class="align-center" id="sketch-map-collaborative-usage-example">
<a class="reference internal image-reference" href="../../_images/IMG_2178.JPG"><img alt="../../_images/IMG_2178.JPG" src="../../_images/IMG_2178.JPG" style="height: 450px;" /></a>
<figcaption>
<p><span class="caption-number">Fig. 249 </span><span class="caption-text">Usage of Sketch Map Tool in the context of the Enhanced Vulnerability and Capacity Assessment (EVCA) in Colombia</span><a class="headerlink" href="#sketch-map-collaborative-usage-example" title="Permalink to this image">#</a></p>
<p><span class="caption-number">Fig. 250 </span><span class="caption-text">Usage of Sketch Map Tool in the context of the Enhanced Vulnerability and Capacity Assessment (EVCA) in Colombia</span><a class="headerlink" href="#sketch-map-collaborative-usage-example" title="Permalink to this image">#</a></p>
</figcaption>
</figure>
<p><strong>For more information on the EVCA:</strong></p>
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