Cartography - Topography Slides

Question 1

What are the different types of thematic maps? - walking down to Labelle

Answer 1

1) Dot Maps (e.g., population density) - Joe’s & Matt w/ the laser projector
2) Proportional Symbol (2D & 3D) - Manhole cover @ end of driveway
3) Segmented Symbol - grade outside of Dr. Dobson’s house
4) Isolines (e.g., temperature, rainfall, etc.) - the Pellerin’s house
5) Chloropleths - The light next to Joe’s house on Labelle
6) Cartograms - the ghetto car house on the corner of Alexandra & Labelle

Question 2

What are 3D proportional symbols typically used for?

Answer 2

Situations with a large range of values.

Question 3

What are chloropleth maps?

Answer 3

Choropleth maps display divided geographical areas or regions that are coloured, shaded or patterned in relation to a data variable (e.g., constituency electoral map)

Question 4

What are cartograms?

Answer 4

A cross between a diagram and a map; typ

Question 5

What are the 3 different types of cartograms?

Answer 5

1) Topological
2) Value-by-area
3) Mental maps

Question 6

Give an example of a topological cartogram.

Answer 6

Subway system in Toronto - shows connectivity but not necessarily accurately or to scale

Question 7

Provide an example of a value-by-area cartogram.

Answer 7

Greenhouse gas emissions world map where the area of China, the US of A, and India are very exaggerated - depicts value by area.

Question 8

Give an example of a mental cartogram.

Answer 8

Driving directions from my house to Walmart - a quick sketch with some landmarks that’s not to scale.

Question 9

Why are maps oriented to the North?

Answer 9

The north star and magnetic North - before the use of these two navigational aids maps were oriented east.