Learning to Draw Contours 

In the space below, you can step through a series of maps containing data values that you'll be asked to "analyze" by drawing isopleths that connect points of equal value. Each lesson presents more data points within the same field.

Across the top of the drawing region are a series of buttons:

Below the drawing region will be some words to prompt you and make suggestions.

(Copyright 1997, University of Wisconsin-Madison/SSEC)