What Is the Contour Interval Equal To? Divide the difference in elevation between the index lines by the number of contour lines from one index line to the next. In the example above, the distance 200 is divided by the number of lines, 5. The contour interval is equal to 200 / 5 = 40, or 40-unit contour intervals.
What is a contour index? Contour Index are bold and thicker lines that appear at an interval of every fifth contour line. The increase in the number associated with specific contour lines shows the elevation of the terrain is also increasing and vice versa.
Similarly, What is the contour interval of the map quizlet? A contour line on a topographic map connects points of equal elevation. The change in elevation from contour line to contour line is called the contour interval.
What is a contour interval and on what factors does it depend?
The contour interval depends upon the general topography of the terrain. In flat ground, contours at small intervals are surveyed to depict the general slope of the ground whereas high hills can only be depicted with contours at larger contour interval.
What is the contour interval like on a map where the relief is high?
If the relief is high (bigger change) you will need a bigger contour interval. The highest point on a topographic map is marked as 345m. The lowest contour line is at 200m.
Do all topographic maps use the same contour interval?
Different maps use different intervals, depending on the topography. If, for example, the general terrain is quite elevated, the map might run at 80- to even 100-foot (24- to 30-meter) intervals. This makes it easier to read the map — too many contour lines would be difficult to work with.
What is the contour interval quizlet? The change in elevation from contour line to contour line is called the contour interval. such as 1,600 or 2,000 feet.
How do you read contours on a topographic map?
What is a contour line on a topographic map quizlet?
contour line. A line on a topographic map that connects points of equal elevation.
What do contour lines on a topographic map connect? A topographic map with contour lines connecting places that are the same height above sea level. Numbers on the lines give the height in feet. (Sea level is zero.) Lines drawn closely together indicate that a slope is steep.
How is elevation shown on a topographic map intermediate contour index contours contour intervals contour lines?
Contour lines (thinner lines) between index contours are called intermediate contour lines. In the map shown below, the elevation difference between index lines is 100 meters. The elevation difference or vertical distance between two adjacent contour lines would be 20 meters (100 : 5 = 20).
What is contour explain contour interval? A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing.
What is the difference between contour interval and horizontal equivalent?
Contour Interval: The constant vertical distance between two consecutive contours is called the contour interval. Horizontal Equivalent: The horizontal distance between any two adjacent contours is called as horizontal equivalent. while the horizontal equivalent is variable and depends upon the slope of the ground.
What are the 3 factors that should be considered upon planning and designing of a contour interval to be used for a topographic map?
What are the 3 factors that should be considered upon planning and designing of a contour interval to be used for a topographic map?
- 1) Scale of the map. The contour interval is kept inversely proportional to the scale of the map. …
- 2) Purpose of the map. …
- 3) Nature of the ground. …
- 4) Availability of time and funds.
What is a contour interval Brainly? Brainly User. A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing.
How are contour lines drawn on maps?
Contour lines are lines drawn on a map with equal elevation points, so elevation would be constant if you followed the contour line physically. The elevation and terrain shape of the contour lines shows. It is useful because they show the form of the land surface on the map–its topography.
What are the contour lines on a contour map Brainly?
Contour lines are an imaginary lines drawn on a map by joining all the same height points (above the mean sea level) on the earth. It is a plane section representing 3D graph.
What is meant by the contour interval on a topographic map quizlet? Contour Interval. The difference between adjacent contour lines. Adjacent means next to. It is usually shown in or near the map’s legend. The difference in elevation between one contour line and the next.
What do contours on maps indicate?
Contours are imag- inary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steep- ness of slopes. A topographic map shows more than contours.
What are contour lines answer? contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level. map: contour lines. The diagram illustrates how contour lines show relief by joining points of equal elevation.
What are contour lines quizlet?
Contour line. a line on a map joining points of equal height above or below sea level.
How do contour lines indicate streamflow on a topographic map? All rivers flow downhill from higher to the lower elevations, perpendicular to the contour line above it. As a rule of thumb, the V-shaped contour is pointing upstream (the opposite direction from the flow of a stream or river). The “V” shape contours indicate streams and drainage.