ARSET EO4IM Webinar Session 1 Homework
The purpose of this exercise is to introduce one of two Google mapping services: Google Earth Pro or Google My Maps. Both services are incredibly useful and will serve as an entry into the world of online mapping. Homework Option A begins at Step 1. This involves downloading and installing software, so if this is not possible, you can complete Homework Option B (beginning at Step 19). Homework Option B involves using or creating a Google account. The completion of either option fulfills the Homework 1 requirement for the certificate of completion. If neither of these options are possible, please reach out to eo4imarset@gmail.com. Please complete this homework by the beginning of next week’s webinar session.
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Homework Option A
This homework option provides an introduction to Google Earth Pro and some of its most useful features. As part of this assignment, you will submit an image showing the map that you have created and a kml file of the data that you have drawn. The only question for which you will need to submit material is Step 17, where you will submit both the image and kml files.
1. Visit https://www.google.com/earth/desktop/ and download Google Earth Pro for desktop. (If you are unable to install Google Earth Pro on your computer, please see Homework Option B starting at Step 19.)
2. Once downloaded, open the program.
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3. This homework will provide a step-by-step guide to complete the required tasks. For additional help or information select “Help” in the Menu bar at the top and select “Help Resources”. There are also many great tutorial videos available on Youtube, including “Google Earth Basics 2016 Tutorial” seen below.
4. Zoom in on a variety of different locations or places familiar to you to get a sense of navigating the interface. This can be done by scrolling in and out with the mouse.
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5. Experiment with turning on and off layers in the Table of Contents. Look at “Borders and Labels”, “Roads”, “3D Buildings”, “Weather”, and “Photos”.
6. Zoom back out to a global scale by scrolling down on the mouse.
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7. Select “View” in the Menu bar and turn off the Atmosphere and turn on Historical Imagery. This feature provides imagery from the last few decades for much of the planet. The quality of the imagery and the length of time covered depend on the location. Zoom in on your local region and look at how the area has changed in the past decades.
8. Go to the “Add” dropdown and select “Folder”. Name your folder “Homework 1A Folder” and click “OK”.
9. Right click on the folder you just created and click “Add” and then “Placemark”. A pin will show on the map and you will be able to move it to a point at the center of your city or village. This can also be done by entering the coordinates of a point if you know them. Click on the yellow pin to choose a different icon. You can even insert your own icon by selecting the “Add Custom Icon” button. Rename your placemark in the "Name" field to a name of your choosing. Type a short description of your town in the “Description” tab and add a picture if you have one available. Add any other additional information you think is relevant and click “OK”.
10. Right click on your folder and click “Add” and then select “Path”. Draw a path to a different location in your village and rename the path, fill out a short description, and change the style to one of your choosing.
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11. Right click on your folder and click “Add” and then select “Polygon”. Draw a circle around your village and add a name and a brief description. In “Style, Color” change the Area (click the white square next to color) and change “Alpha channel” to 0. Change the line to your desired width and color.
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12. You can view a list of these layers in the “Tables” option in the “Tools” dropdown.
13. Pre-made shapefiles or georeferenced image files can also be imported into Google Earth. This will allow you to overlay any local boundaries, historical imagery or other data you have over the google earth imagery. If you have an Esri shapefile or GeoTiff file on your computer, select “File” dropdown and select “Import”. In the file type dropdown, select the appropriate filetype. For shapefiles this will be ESRI Shape (*.shp) and for imagery this will be GeoTIFF (*.tif).
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14. GPS points can be imported into google earth as well. If you have GPS data, select the “Tools” dropdown and click “GPS”. In the pop-up window, you can import data directly from a GPS device by selecting the appropriate device and clicking “Import”. You can also import data saved to your computer by selecting ‘Import from file’ and clicking “Import”.
15. Select the “Save” option in the “File” dropdown menu. Select “Save Image”. You should see a legend in the upper right corner and a title in the upper left. Click the title to rename the image to “Homework 1A Map” and add a brief description. Click the “Save Image” button on the toolbar.
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16. You can also save your folder as a kml file that can be imported into a wide variety of platforms (such as QGIS, Esri software, and Google Earth online) for later viewing. To do so, right click your folder and select “Save Place As”. Choose .kml as your file type and name your file “Homework 1A kml”. Click the “Save” button to save your file.
Your answer
17. Please attach both your map image and kml file to an email with the subject line "Homework 1A" and send to the following email address: eo4imarset@gmail.com.
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18. This map can be shared with others by clicking the “Share” button in the upper right corner of the window. From here you can email the image, view, or placemark to the person/people of your choosing.
Homework Option B
This homework option provides an introduction to Google My Maps and some of its most useful features. As part of this assignment, you will share the map that you have created during this exercise. The only question for which you will need to submit material is Step 37, where you will paste the link to the map that you make.
19. While Google Earth Pro has many useful features, it requires downloading the software and can be more complicated to use. Alternatively, Google My Maps is simpler and allows to data manipulation directly on the internet. Therefore, an alternative homework is provided using Google My Maps.
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20. Visit Google My Maps at the following url: https://www.google.com/maps/d/u/0/. If you do not already have a google account, please create one when prompted by clicking the “Create Account” button.
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21. Once you are logged in and can see the Google My Maps home page, click the three horizontal lines on the upper left corner of the page and click “Create a new map”. This can also be done by selecting the large plus sign in the red circle at the bottom right corner of the page.
22. Once in your new map, click the “Untitled map” text in the upper left corner. This will open pop-up window (seen below) that will allow you to provide a name and description for your map. Name your map "Homework 1B Map", add a brief description, and click “Save”.
23. You can change the basemap of My Maps by selecting the “Base map” dropdown arrow. View the satellite layer to look at imagery from your hometown. Exit out of the basemap pop-up window.
24. If there are no layers present in the table of contents, select the “Add layer” button under your map title (seen below).
25. If a layer is already available, click the three vertical dots to the right of the “Untitled layer” and select “Rename this layer”. Enter "Homework 1B" as the name for your new layer.
26. To add existing data to your new data layer, click the “Import” button under the "Homework 1B" layer in the table of contents.
27. “Import” opens a window with various options for files that you can add to your map. The “Upload” tab allows csv, xlsx, kml, or gpx files to be added from your computer. You can also add files from a Google Drive or geolocated photos from Google Photos. Once you have uploaded any data or photos you want, exit out of the “Choose a file to import” window.
28. You can also add drawn data to your new layer in the form of points, lines, or polygons. To add a point, click the “Add marker” icon (seen below) under the search bar, and place it at the center of your hometown.
29. Click the point you just created to bring up a pop-up window (seen below).
30. Click the “Edit” button (seen below) to change the name of your point and add a description of your choosing.
31. To add a line, select the “Draw a line” button (seen below) under the search bar. Draw a line to a different location in your village by clicking to add points along the path. End the line by double clicking. Click the newly created line, rename it, fill out a short description, and change the style to one of your choosing.
32. Creating a polygon is a very similar process to creating a line. Select the “Draw a line” button under the search bar again and trace the area around your hometown. To complete the polygon, end the shape at the first point you created. If done correctly, this should be labeled “Polygon 1” (as seen in the pop-up below). Rename the polygon, fill out a short description, and change the style to one of your choosing.
33. To delete any vectors within your layer, right click the vector in question and select “Delete”.
Your answer
34. Select the “Share” icon at the top of the table of contents.
35. The Share icon brings up a window where you can change the privacy settings on the page. Click the "OK" button.
36. Click the “Change” text next to “Private – Only you can access” to bring up a window of various privacy settings. Change the privacy to "On - Anyone with the link" and click “Save”.
37. Copy the URL link (found under "Link to share") to the map you have created and paste it into the "Your answer" field for this step. A sample link can be seen in the picture below. (If you chose Homework Option A and sent your files to eo4imarset@gmail.com, you do not need to submit this link.)
Captionless Image
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38. Click “Done” to exit this window.
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39. Select the “Preview” icon (seen below) at the top of the table of contents. This allows you to examine how your published map will appear to the people you share it with. You can also click “SHARE” to share this page on social media platforms such as Facebook or Twitter.
40. Now go back to the My Maps homepage at https://www.google.com/maps/d/u/0/. On this page you should see the map that you just created. In the future you can click this map to renter the page and edit it.
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41. Click on the “Owned” dropdown (seen below) in the upper left corner and select “Explore”. Here you can select and view numerous maps that have been made public by various users. Scroll through some maps from “Top Maps” or “Staff Picks” and examine any that appear interesting.
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