Proportional Circle Map

http://personal.frostburg.edu/krtopping0/maps.htm

 Proportional circle maps represent the measurements of data for regions by superimposing various sized circles over each section or region. In this map, the larger the circle shown is, the higher the number of people that were killed in road accidents in 2000. The legend allows the reader to associate a magnitude to the circle size. There is a different circle for each European country shown. This allows the reader to see an overview of amounts of road accident deaths in Europe. Clearly, there are less deaths on the road in northern Europe than in central Europe.

Choropleth Map

http://my.ilstu.edu/~jrcarter/Geo204/Choro/Tom/

A choropleth map is a type of thematic map which provides easy visualization of patterns or trends of data by shading or coloring different areas differently in proportion to the measurement of the statistical variable being represented. Variation in measurements across a geographic area or within a region can be easily analyzed using a choropleth map. This particular map represents the percent of Hispanic/Latino residents in the state of Florida. It is divided by county, with 5 different hues of green used to shade each. This map makes obvious the pattern of the Hispanic/Latino population increasing down the state.

Dot Distribution Map

 

http://udel.edu/~patronea/frec480/proj1/

Dot distribution maps, sometimes called "dot density maps," plot distributions of events or phenomena. This is a dot distribution map plotting the population of the continental United States in 2000, with each dot representing 10,000 people. Dot distribution maps are quite flexible to work with and are easy to interpret.

LIDAR Remote Sensing

http://coastal.er.usgs.gov/remote-sensing/advancedmethods/googleearth.html

This is a map of Dry Tortugas National Park, which is the westernmost island in the Florida keys. This topographic map uses LIDAR (light detection and ranging) remote sensing. The LIDAR data were processed to DEM images at 1m x 1m spatial resolution. The LIDAR system used is called experimental advanced airborne research lidar (EAARL), which provides unique capabilities to survey coral reefs, nearshore benthic habitats, coastal vegetation, and sandy beaches. EAARL uses a very low-power, eye-safe laser pulse to gather the remote sensing data used here. This map is valuable to the National Park System in their reef conservation efforts as well as to sailors navigating through the area.