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CROSS SECTION OR RELIEF PROFILE
CONTENT
- Cross Section or Relief Profile
- Procedures for Cross Section Drawing
- Vertical Exaggeration
- Intervisibility
- Calculating Average Gradient
Cross Section or Relief Profile
It is defined as the practice whereby relief shown by contours on map are drawn to bring out the real appearance of such relief as it is on the ground. In other words, it helps us to visualise the appearance of the landform or relief as seen from the ground at a glance.
Procedures for Cross Section Drawing
To draw a cross section between two points on a map, (for example, between Okuta and Bode settlements as shown in the diagram below) certain steps have to be taken.
- Draw a section line to join the two points i.e. Okuta and Bode settlements on the map.
- Examine the heights of the two points and the heights of the contours along the line, noting in particular the highest and lowest points, the vertical interval and the contour form.
- Get a straight edge of a strip of paper.
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ClassHall Instructor
FUNMILOLA ATERE
Ahmad Ayinde
Maryam
Chukwuebuka ikeonyishi