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Why the contour interval on a topographic map of a mountainous area usually is large?
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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.
How can you determine whether the contours on a topographic map show a gradual slope?
If the topographic lines are closer together it means that it has a steeper slope grade, if they are farther apart, it means that they have a more relaxed slope grade. There is usually a scale on the map that can tell you in exact measurements of the slope.
On a topographic map contour lines that are close together indicate a?
A very steep regionClosely spaced contour lines indicate a very steep slope.Conversely, widely spaced lines indicate areas that are nearly flat.-Leftover.Tech
What kind of map that uses shading and elevation lines?
That would be a topographical map. It uses contour lines (usually 100 or 50 ft. incraments) to show elevation above or below sea level. They're usually black & white and can be found wherever you can find maps.
Specially drawn contour lines used to represent a round number of feet or meters?
Index contours are specially drawn contour lines that represent a specific round number of elevation, usually labeled with the exact value. They are useful for quickly identifying key elevation points on a topographic map.
Why are contour interval on a topographic map of a mountainous area usually large?
Contour intervals on a topographic map of mountainous areas are usually large because the terrain is more rugged and the elevation changes are more pronounced. A larger contour interval helps to simplify the representation of complex topography and make the map easier to read and interpret.
How do you find the contour interval?
To find the contour interval on a topographic map, look for the difference in elevation between adjacent contour lines. The contour interval is usually given in the map's legend and represents the vertical distance between each contour line.
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.
What is the elevation change between two adjacent lines on a map?
The elevation change between two adjacent contour lines on a topographic map is known as the contour interval. This interval represents the difference in elevation between each contour line. For example, if the contour interval is 50 feet, it means that each contour line represents a change in elevation of 50 feet.
How are river valleys represented on a topographic map?
Usually by contour lines, with the river shown in blue.
What is the difference between any two contour lines on a map?
Contour lines on a map represent points of equal elevation. The difference in elevation between any two contour lines is called the contour interval, which is usually indicated on the map legend. By knowing the contour interval, you can determine the steepness of the terrain in that specific area.
What is the difference between and index contour and a regular contour line?
An index contour is a thicker contour line that is labeled with the elevation of that contour. It usually appears every fifth contour line and helps to quickly identify elevation changes on a topographic map. Regular contour lines are thinner and connect points of equal elevation.
What is the elevation difference between one contour line and the next?
The elevation difference between one contour line and the next is the contour interval. It represents the vertical distance between two adjacent contour lines on a map.
How can you determine whether the contours on a topographic map show a gradual slope?
If the topographic lines are closer together it means that it has a steeper slope grade, if they are farther apart, it means that they have a more relaxed slope grade. There is usually a scale on the map that can tell you in exact measurements of the slope.
How does index contour lines differ from other contour lines?
Index contour lines are thicker and usually have their elevation labeled. They help users quickly identify key elevations on a topographic map. In contrast, regular contour lines show the shape and elevation of the land but do not have specific labels.
What is a index contour?
A thicker line that has numbers written on it showing the rising or decreasing elevation on a topographic map By Ash Every fifth contour line on a topographic map, usually thicker, used to label elevation.
On a topographic map contour lines that are close together indicate a?
A very steep regionClosely spaced contour lines indicate a very steep slope.Conversely, widely spaced lines indicate areas that are nearly flat.-Leftover.Tech
