Contour Definition In Surveying
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Contour Definition In Surveying
It can also be defined as the line of intersection of a level surface with the ground surface. Suitable site for the project works to be taken up. For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres.
No two lines meet on intersect each other in any case. Contour maps are extremely useful for various engineering works: Contour surveying is the branch of surveying that uses contour lines to identify variations in the height of the earth’s surface and their relative places.
A contour line may be defined as an imaginary line passing through the points of equal devotion.
Fig shows a pond with water at an elevation of 100 m. An imaginary line on the ground surface joining the points of equal elevation is known as contour. A contour line may be defined as an imaginary line passing through the points of equal devotion. If the water is lowered by one meter.
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