Map Projection Pros
What are the pros of the Mercator projection? In other words, what does this map preserve?
Preserves Direction
What are the cons of the Mercator projection?
Size is very distorted
The shared way of life of a group of people.
Why are globes not perfect maps?
Distortion definition
Inaccuracies when projecting a 3D shape on a 2D surface.
What are the pros of the Gall-Peters projection? In other words, what does this map preserve?
Accurate area/size representation
What are the cons of the Robinson projection?
Not accurate in any aspect.
Cultural Geography definition
The Shared Relationship Between Culture and Place.
Why do map makers use projection?
In order to paste a 3D image on a 2D surface.
Map definition
What are the pros of the Azimuthal projection? In other words, what does it preserve?
Preserves Direction AND Distance from center point
What are the cons of the Azimuthal projection?
Severe shape and size distortion
Cartography definition
The art and science of designing and creating maps.
Instead of asking "which map is correct?" we ask....
What is this map trying to show us.
Dot Density maps
What does are the pros of the Goode Homolosine projection? In other words, what does it preserve?
Preserves shape AND size
Shape distortion, especially near the poles.
Scale definition
The relationship between actual distance and distance on a map.
Why are Robinson Projections used?
Visually appealing maps for classrooms.
Flow Line Maps
Varying lines of thickness to show movement, direction, and volume
What are the pros of the Robinson projection? In other words, what does it preserve?
Does not accurately preserve anything (shape, area, distance, direction)
What are the cons of the Goode Homolosine Projection?
Oceans are disconnected. Not great for navigation.
Choropleth map
Colors or shades regions to highlight data points.
Why are Azimuthal maps used?
Airtime Navigation
Cartogram map
Stretch or shrink a region to make the size proportional to the data.