Univariate Choropleth Map

A Univariate Choropleth map displays a one variable data set. This is showing the change of divorce rates in the United States from 1980 to 1990.

http://www.pop.psu.edu/gia-core/divorce.htm

Isobars

An Isobar is a connecting line that joins equals atmospheric pressure. This is an isobar map of Europe.

http://www.leafline.net/pages/weather/information/pressure.htm

LIDAR

The LIDAR is a remote sensing system that measures certain properties of spreaded light to search for information of a isolated target. 

http://www.loc.gov/exhibits/911/911-maps.html

Cartogram

A Cartogram is a map that shows a certain variable substituted for geographical size or area on a map. 

http://www.ncgia.ucsb.edu/projects/Cartogram_Central/

Continuously Variable Proportional Circle Map

A Continuously Variable Proportional Circle Map is a map that utilizes a proportional circle to create point data.The circles show data measurements continuously and can be any size in proportion to the data being measured.  This is a Continuously Variable Proportional Circle map of the Mexican population in particular states in the Western United States in 1990

http://www.neiu.edu/~ejhowens/377/examples.htm
Click on "Mexican population with spheres/volumes"

Range Graded Proportional Circle Map

A range graded proportional circle map is a circle map that represents the circles in proportion to ranges of data. This is a proportional circle map of the internet users in 2004 in Europe.

http://www.geog.ucsb.edu/~jeff/gis/proportional_symbols.html

DOQQ

A DOQQ is a digital uniform level image formed from aerial like photos. This is an aerial image of the Mission Bay, Texas.




















http://www.tceq.state.tx.us/gis/doqsample.html