Characteristics of contour

Contours are imaginary line joining points of equal elevation. A 1300 contour indicates all points lying on this line is at elevation of 1300 from mean sea level.

Characteristics of contour

  1. Contour lines represent line of equal elevation.
  2. Contour lines always close either in same map or other
  3. Concentric contour lines with values decreasing toward center indicates depression.
  4. Concentric contour lines with value increasing towards center represent hill
  5. Two contour line never cross each other except in the case of overhanging cliff.
  6. Two contour lines never intersect each other except in the case of vertical cliff.
  7. The horizontal distance between two contour is called horizontal equivalent
  8. The vertical distance between two contours is called contour interval.
  9. Closely spaced contours indicate steep slope.      
  10. Widely spaced contour indicates gentle slope.
  11. Equally spaced contour shows normal slope.
  12. Contour line doesn’t cross river , buildings and other similar structures.
  13. Contour line with V shaped and convexity towards higher ground represents valley.
  14. Contour line with U shaped and convexity towards lower ground represents ridge.

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