Landscape cross sections

Read an elevation profile and distinguish vertical from horizontal scale.

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Landscape cross sections

The profile joins six measured points with straight segments. Horizontal units are kilometres and vertical units are metres. The drawn slope angle is exaggerated by these different scales.

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Fictional landscape cross section0 km along the transect: 20 m above datum; 1 km along the transect: 320 m above datum; 2 km along the transect: 620 m above datum; 3 km along the transect: 920 m above datum; 4 km along the transect: 620 m above datum; 5 km along the transect: 20 m above datum01002003004005006007008009001000012345Elevation above datum (m)Horizontal distance (km)
Distance (km)Height (m)
020
1320
2620
3920
4620
520
Fictional landscape cross section. Original fictional resource; not an official map or real dataset.
Resource description

0 km along the transect: 20 m above datum; 1 km along the transect: 320 m above datum; 2 km along the transect: 620 m above datum; 3 km along the transect: 920 m above datum; 4 km along the transect: 620 m above datum; 5 km along the transect: 20 m above datum

1. What is the difference in height between the highest and lowest measured points, in metres?

2. For the section from 2 km to 3 km, express the gradient as 1:n. Enter n.

3. How should the real slope be calculated from this profile?

Choose an answer

The maps and data are fictional. These exercises do not count as required fieldwork.

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State the unit and the part of the resource you used. A pattern in a fictional dataset is evidence for that exercise; it does not establish a fact about a real place.

Check whether an explanation is supported by the data or needs additional geographical knowledge. For statistical tasks, a calculated result does not establish causation or significance by itself.

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