Heat Island Activity Google Maps

8/3/2019 Heat Island Activity Google Maps

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Melbourne Grammar School

Year 7

Creating a Heat Island Map in Google Maps

Map Creation

1. Sign up to Google Maps and create a Google account (you should do this at least one

week prior to the activity).

You will need to create an account with Google to be able to create and save your maps.

If you have a Gmail account this will also give you access to Google Maps and the other

Google applications. If not, go to http://www.google.com.au/maps and look for the ‘Signin’ button in the top-right corner.

Click here and look for ‘Create an account now’, enter your details and you will be sent

an email to activate your account. Once your account is activated you can move on to the

next step.

2. Go to Google Maps.

http://www.google.com.au/maps



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Once you are here (sign in if you have not already) and your teacher will take you

through the basic functions of using Google Maps, including navigating around the map

and changing the underlying basemap.

3. You will need to create an account with Google to be able to create and save your maps.

If you have a Gmail account this will also give you access to Google Maps and the other

Google applications. If not, go to http://www.google.com.au/maps and look for the ‘Sign

in’ button in the top-right corner.

Click here and look for ‘Create an account now’, enter your details and you will be sent

an email to activate your account. Once your account is activated you can move on to the

next step.

4. Go to Google Maps.

http://www.google.com.au/maps

Once you are here (sign in if you have not already) and your teacher will take you

through the basic functions of using Google Maps, including navigating around the map

and changing the underlying basemap.

5. Click on ‘My maps’ and click on ‘Create new map’ (or ‘Get started’ if this is the first time

you have used the application).



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When you create a new map you are automatically taken to the Edit mode, here you can

add content to your map, which you will do soon.

You will now need to enter some details about your map in the left-hand part of your

screen. Call your new map ‘South Yarra Heat Island’ and change your privacy setting to

‘Unlisted’.

6. You will notice the edit tools that are now available in your map, this tells you that you

are in the edit mode. You will add placemarks for each survey point next.

7. Use the image over the page as a guide to the locations of the survey points. The ‘Add

placemark’ tool, below, will let you place a placemark at each survey location (don’t

drag the placemark tool).

Place a placemark on each of the 15 survey locations.

8. Go to your table of data (see appendix one) and enter the field data into the first

placemark. Put the temperature and humidity readings into the title area as in the image

below.



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9. You will now change the icon to show the humidity.

To get your new icons, open the website below in a new tab.

http://code.google.com/p/google-maps-icons/wiki/NumericIcons

Scroll down until you find a colour scheme (from 0-100) that will be visible on your

map. Find the icon you wish to use and right-click on the icon and select properties. In

this example our humidity reading is 35%, so we have right-clicked on the red 35 icon.

Now highlight and copy the URL, as above and go back to your Google Map. Keep this

website open in a separate tab.

10. Click on the icon image in your placemark (make sure you are in edit mode), click on

‘Add an icon’ and paste the URL into the box that pops up. Hit Ok and hit Ok again to

update the icon for that placemark. See the images below for a guide.



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11. Do this for all 15 locations on your map.

12. You will now create isolines showing humidity variations across your map. You willneed to interpolate the position/course of each isoline using the data points you have

plotted as a guide.

13. Use the ‘’Draw a line’ tool to create each line. You need to click your mouse along the line

where it changes direction and click on the last point to complete drawing the line.



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14. Once your isotherms have been drawn you should change the colour to indicate the

humidity range. Use the colour scheme in the table below. Changing the colour of your

line is the same as changing your symbol on a placemark (see step 10).

Humidity (%) Colour

To change the colour, click on the line symbol that you have drawn and click on the

symbol itself in the top-right corner of the box.

As in the image below, select the apporpriate colour for your isoline (see table from

step14) and change the opacity to 100% (this means that your line is not see-through at

all).

15. Do this for all of the isolines on your map to complete your heat island map of South

Yarra.



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Data Analysis



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Appendix One

Site Number Temperature (oC) Relative Humidity (%)

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Documents

Heat Island Activity Google Maps