Thursday, November 13, 2008

Unclassed Choropleth Maps


This is an example of an unclassed choropleth map. It shows the flash density of lightning over the United States. This map is considered an unclassed choropleth map because the number of flashes are not areally averaged.

URL: http://www.weather.gov/os/lightning/images/Vaisala_96-05_Flash_Map.gif

No comments: