VE of 5x indicates that on the map, topography or relief is exaggerated by 5 times than the original map or real world.
So on y axis 1 cm should be equal to 100m. In order to draw a profile with greater vertical exaggeration such as 5x, real world units of the vertical scale would be equal to the (real world units of horizontal scale / 5) = 500m / 5 = 100m. If we decide to use the same value for our vertical scale (1cm = 500m for y axis), then there will be a vertical exaggeration (VE) of (500m / 500m) = 1x or no vertical exaggeration.Ĭhanging our y axis scale so that 1cm would represent 250m then we would have 500m/250m = 2x (read 2 times) vertical exaggeration. Labeling 1 cm units on x axis: 1cm on map = 50000cm in real world = 500m in real world. VE = (real world units of horizontal scale) / (real world units of vertical scale).Īs an example for a 1:50000 topo map, we can set the horizontal scale (x axis) of the profile the same as the map. Also always show vertical exaggeration value on your profile graph. Make sure same units are used in numerator and denominator of the division. In order to calculate vertical exaggeration, divide the real world units of horizontal scale by the real world units of vertical scale. In such situations the elevation profile may only show small variations in elevation without much detail of the topography.įor this reason some amount of vertical exaggeration (VE) is used in order to get a clearer picture of the subtle changes in topography and emphasize vertical relief and slope steepness. In some cases topographic relief of the terrain is modest, such as the case of small hills and other subtle features as opposed to mountainous terrain, or the profile of interest is extended over a large horizontal distance relative to vertical relief. On the graph paper, plot the corresponding elevation above each tick mark.īy connecting the dots, the elevation profile along the line of interest is drawn. The y-axis represents the elevation of points along the line. Therefore the x-axis corresponds to the horizontal distance of the line on map. Label the graph's y-axis with elevation values ensuring that they encompass the minimum and maximum values recorded previously. Note the minimum and maximum elevations along the line you've recorded. Place the edge of the paper along the x-axis of a graph paper. Label each tick mark with the elevation of the corresponding contour line.
Mark with a tick mark on the edge of the paper wherever the paper crosses a contour line. In order to draw a topographic profile along a desired line on a topo map, put the straight edge of a piece of paper between the end points of the line. It provides a side view of the relief of the terrain along a line drawn between two locations on a topographic map. Home > Education > Elevation Profile - Vertical Exaggeration Topo Map Elevation Profile - Vertical ExaggerationĪn elevation profile or a topographic profile is a two-dimensional cross sectional view of the landscape.
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