What Is A Contour Interval On A Topographic Map

For example the maps on the previous page used a 10 ft contour interval. A contour line is a line drawn on a topographic map to indicate ground elevation or depression.

Introduction To Topographic Maps Contour Lines Ppt Download

The contour interval is stated on every topographic map and is usually located below the scale.

What is a contour interval on a topographic map

. Each the contour lines was a multiple of 10 ft i e. Contour interval is the actual change in elevation represented by the space between two adjacent topographic rings. A contour line is a line drawn on a topographic map to indicate ground elevation or depression. For example if there is a contour interval of 20 feet each topographic line.

A contour interval is the vertical distance or difference in elevation between contour lines. For instance if the map uses a 20 foot interval there are contour lines at zero 20 40 60 80 and 100 feet. The contour interval is an even space that represents an increase in elevation. If sea level always equals 0 and the contour interval is 10 feet how tall is this mountain.

Index contours are bold or thicker lines that appear at every fifth contour line. Contour maps offer a deceptively high amount of information when analyzed skillfully and can be accessed on command using online mapping sites and applications. Click to let others know how helpful is it. Considering the size of the area to be mapped contour intervals are assumed.

The space between contour lines on a topographical map is a contour interval. Index contours are bold or thicker lines that appear at every fifth contour line. Contour lines are spaced by contour intervals and represent areas on land that lie the same distance above sea level taken to be zero feet 0 by convention. Remember that topographic maps represent a view of the landscape as seen from above.

Usually there are different contour intervals for the different maps. A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. A contour interval is the vertical distance or difference in elevation between contour lines. This vertical spacing is referred to as the contour interval.

These elevations are chosen to be evenly spaced vertically.