# Contour Interval?

Contour interval refers to the difference in elevation represented by each contour line on a topographic map or the difference in elevation between successive contour lines. When it is considered as a ratio against the map scale, a sense of the hilliness of the terrain can be derived.
contour interval
NOUN
1.
the difference in elevation represented by each contour line on a topographic map.
Source: Dictionary.com
Contour interval is the actual change in elevation represented by the space between two adjacent topographic 'rings'. For example, if there is a contour interval of 20 feet, each topographic line on the map represents going either up or down by 20 feet of elevation.
Q&A Related to "Contour Interval?"
 A contour interval is used in mathematics and science related fields in order to describe a difference in value between various contour lines on a map or some kind of chart. http://answers.ask.com/Science/Geography/what_is_a...
 Topographic maps provide accurate information about features on the ground whether they are natural or man-made. They are so detailed that it is almost as if one is using a three-dimensional http://www.ehow.com/about_5672230_contour-interval...
 The definition of a contour interval is the difference in elevation between two consecutive lines. http://wiki.answers.com/Q/What_is_the_definition_o...
 ( ′kän′tu̇r ′in·tər·vəl ) (mapping) The difference in elevation between adjacent contours. http://www.answers.com/topic/contour-interval
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