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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 (and sometimes it's hard to tell which).
For convenience, many mapmakers include numbers every four or five lines to tell you what elevation is represented by that line.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoContour intervals are an artificial construct and have no real presence on a map. They are convenient in indicating the shape and slope of the land (or seabed). The contour interval is chosen for the convenience of the locale.
Contour lines were invented in association with the Schiehallion experiment, an attempt in 1774 designed to measure the mass of the Earth. They were used to estimate the volume of that particular mountain.
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How do you find the contour interval on the map?
Notice the pattern around that contour line. Then determine the interval that the surrounding contour lines are increasing or decreasing by. Ex. 50 100 150 200, the contour interval would then be 50
On a topographic map the difference in elevation between one contour line and the next is the?
Contour interval
How far apart would two successive index contours be on a map with a contour interval of 5 meters?
Two successive index contours on a map would be 5 meters apart. The interval is how far apart two contour lines are, so since the contour interval is 5 meters the answer is 5 meters.
What are the difference's between contour interval and index contour?
What are the difference's between contour interval and index contour?
How do you find the gradient on a contour map?
the ratio between the vertical interval and horizontal equivalent is defined as the gradient.
What is the relationship between the relief of an area and the contour interval on a map of the area?
The Relationship between the relief of an area and the contour interval on a map of the area is A contour line
Is a contour interval for a given topographic map always the same?
A contour interval for a given topographic map always the same is true; not false.
The difference in elevation between the highest and lowest contour lines on a topographical map is called?
The difference in elevation between the highest and lowest contour lines on a topographical map is called a contour interval.
What does a contour interval of 20 meters mean?
A contour interval shows a change in elevation on a topographical map. If the contour interval is 20 then the elevation change between two contour lines is 20 meters
What is an orthophoto map?
It is a map of an area that is from a bird's eye view.
What does a contour line measure?
The scale of contour lines on a topographic (terrain) map is called the "contour interval".
How do you find the contour interval on the map?
Notice the pattern around that contour line. Then determine the interval that the surrounding contour lines are increasing or decreasing by. Ex. 50 100 150 200, the contour interval would then be 50
How does the relief of an area determining the contour interval used on a map?
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On a topographic map the difference in elevation between one contour line and the next is the?
Contour interval
What is the contour interval for a topographic map of the volcano?
That depends on which Contour Map. The contour interval is the height difference between two adjacent contours on your map. The contours probably go up in 500 metre steps if it's a big volcano, so your contour interval is 500 metres.
How far apart would two successive index contours be on a map with a contour interval of 5 meters?
Two successive index contours on a map would be 5 meters apart. The interval is how far apart two contour lines are, so since the contour interval is 5 meters the answer is 5 meters.
What are the factors effecting contour intervals?
If the contour interval is not given, find two reference (labeled) contour lines and find the number of lines between them, excluding the reference lines themselves. Then the interval can be found using the following formula: |(Difference between elevation of reference lines)| /(Number of contour lines between reference lines +1) = Contour interval For example, if you find two reference lines labeled 150m and 250m and there is one contour line between them, then |150m-250m|/(1+1)=100m/2=50m The contour interval of that map is 50 meters.
