Tuesday, July 24, 2012

Bivariate Choropleth Map



A bivariate choropleth map displays two variables within the same image.

Cadastral Map



A cadastral map is used to display boundaries and ownership.

Topographic Map




Topographic maps represent three dimensional terrain features in a two dimensional format.  Contour lines are used to represent the elevation and shape of the land.  This example of a topographic map is used to show how firefighters use maps to plan how to fight wild fires.  The contour lines are imaginary lines that provide firefighters with valuable information about the terrain.

Cartographic Animation



Cartographic animation is a combination of two dimensional and three dimensional images to portray the changing features in the atmosphere.  The attached image is an animation of Hurricane Katrina.