Lab 2 Earth Science S2021 Google Earth Pro Tutorial and Assignment PDF

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Download Lab 2 Earth Science S2021 Google Earth Pro Tutorial and Assignment PDF

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Earth Science Lab # 2

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Section: ___________________ Using Google Earth Pro The objective of this lab is to get students familiar with using Google Earth Pro to locate places and drawing topographic profile. At the end of this lab, students should know how to: 1. Obtain latitude and longitude of places. 2. To calculate distance from one place to another. 3. To determine elevation points of specific places. 4. Draw topographic cross section / profile of features. Software: Google Earth Pro. This is an open source software provided by Google that permits the analysis of spatial data. If Google Earth Pro is already installed on your desktop, go to the next section. If not yet installed, download and install the software from here: https://www.google.com/earth/versions/#earth-pro The Menu in Google Earth Pro is included below. Access Google Earth Pro User Guide here: https://static.googleusercontent.com/media/earth.google.de/de/de/userguide/v4/google_e arth_user_guide.pdf.

Figure 1: Features that are available in Google Earth Pro

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A. Scenario 1: Obtaining Latitude and Longitude using Google Earth Pro You were recruited by a Geomatics company to conduct site visits at many locations. However, the latitude and longitude of each site is required. To find these sites, we will be using Google Earth Pro. Tip: Latitude comes before longitude. Ensure you include north or south with latitude and east or west with longitude. Instructions 1. Open Google Earth Pro 2. Add grids by selecting the View menu and select Grid.

3. Select the coordinate format by going to Tools > Options > 3D view > Show lat/long and choose Degrees, Minutes, Seconds.

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4. Select Meters, Kilometers as Units of Measurement

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5. Turn on Borders and Labels in the Layers section shown in the lower left corner then select My Places under Places

Labels can be used to identify places. 6. Use the Add Point icon / yellow pushpin/ place mark to mark the place you are looking for.

7. When the yellow pushpin appears along with the pop-up window, place the pushpin at the correct location (centre of building) that the coordinate (lat/ long) is required for. Sometimes you will have to zoom to the area if the scale is too small. 8. We will identify the latitude and longitude for a section of Lake Winnipeg as an example. This information is required sometimes when water quality studies are conducted. As you realize, once the pushpin is selected, it needs to be placed at the correct location. 9. In the Google Earth New Placemark window, write the name of the place and add a description. The latitude and longitude are displayed. You can enter this into a spreadsheet if you would like. This is important for data collection. Select Ok.

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10. The Placemark should be under My Places. If it is in Temporary Places, drag it to My Places so it can be stored. 11. To save the Placemark, right click on the layer in My Places and select Save Place As

12. Select Kml beside Save as type

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There is also an option to send the Placemark via Email. 13. Make note of the elevation. Place your mouse pointer at the location of the Placemark and make a note of the elevation at the bottom right corner. The elevation of the Placemark at Lake Winnipeg is about 221m as shown below:

The elevation is not exact and depends on the resolution of the imagery. Congrats! You have created your first Kmz/Kml file. This is basic GIS. These files can be shared with your team members or governmental and non-governmental organizations. The Kmz and Kml files can be imported in a GIS software to conduct further analysis. A collection of coordinates in a spreadsheet can be used to create maps for advance users. Activity 1 Obtain the latitude and longitude for 2 places of interest (for example, a church, school, park, lake, mountain). 2 marks.

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Latitude should include N (north) or S (south) and Longitude should include E (east) or W (west). In Google Earth Pro, select the Degrees, Minutes and Seconds option under show lat/long. Take a screenshot of the places and insert them into a Word Document. Also, add a caption/title and source. Source is Google Earth Pro. B. Scenario 2: Measure distance in Google Earth Pro The ruler tool in Google Earth is useful for measuring distance. You can also use the path tool. 1. Click on the ruler tool. 2. On the Google Earth Pro Image, click on your start point and then your end point. 3. The distance should be illustrated in the dialogue box. Choose metre as the unit of measurement.

An example of the distance from North End to Lord Selkirk Park is shown below. The map length in the dialogue box shows the distance.

Activity 2 Use the ruler tool to measure the distance in metres from these places in Winnipeg, Manitoba: I. II.

From the point labelled Exchange District to the point labelled South Portage. 1 mark From the point labelled Central Park to The Forks. 1 mark

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Take a screen shot and insert the image (showing the ruler path between the two places) in a Word Document. Ensure the eye alt at the bottom right corner of Google Earth Pro is included. Add a caption/title and the source. Source is Google Earth Pro.

C. Create topographic profile in Google Earth Pro A topographic profile is a cross sectional view of the land surface. 1. In the search bar, type Lake Winnipeg 2. Click on the Add Path tool

3. Draw a line across Lake Winnipeg as shown below:

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4. Name the New Path 5. To visualize the profile, click on the New Path under My Places and select Show Elevation Profile

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6. Move the cursor within the cross section to see how it corresponds to areas along the profile (Path drawn). Activity 3 Draw a topographic profile of the following: I. II.

Two (2) different mountains in Canada and make note of the elevation of the highest point for each. Ensure you save them as Kml files and submit on Nexus. 4 marks Two (2) different sections of The Assiniboine River in Winnipeg. Ensure you save them as Kml files and submit on Nexus. 2 marks

D. Topographic profile from topographic maps. Activity 4 Draw a topographic profile of Sentinel Bay from A to B in Figure 1 below. Use a vertical scale of 1:2,000. Include the scales, vertical exaggeration, source and a title. Also, label any features of interest. 10 marks Here are some links to some videos showing how to create topographic profiles: Link 1: https://www.youtube.com/watch?v=y3hPFCW9f7M Link2: https://www.youtube.com/watch?v=BuWSnRheFto&t=203s

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Figure 1: Sentinel Bay Source: GEOG 1202 Lab Manual Use the example of a topographic profile below as reference.

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Reflection 1 (adapted from MacKinnon et al.). No marks will be awarded for the reflection. One of the most fundamental issues in geography is location — Where am I? Where is this place? Where is that place in relation to the other place? Think about the different ways in which location can be defined and specified. Think about how would tell someone exactly where you are right now — the square metre of Earth’s surface that you are currently occupying! How would your description be different if you simply wanted to give the general location of the town that you are in? Reflection 2 As indicated, the topographic profile can be created in a number of different ways. Which method do you prefer and why?

Total 20 marks.

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