How To Draw A Cross Section From A Topographic Map
How to draw a cross section from a topographic map
On graph paper draw the horizontal and vertical axes from your cross section. Divide 300 feet by 3 to get one contour every 100 feet.
Geologists will label this cross section line using letter designations such as a a.
Mark off the right hand extreme on the graph and draw a vertical line to delimit it. Your vertical axes need to use a scale distance between each increment that will not exaggerate the height of the cross section. Take a thin strip of paper and place it along the cross section line. Let s go through the different steps required to make a cross section on a map.
On the map place the piece of paper and holding it steady mark off every contour that cuts it accurately numbering each mark vertically. On a magic piece of paper delimit the cross section on the map and match it to the given graph. A map extract is provided together with student tasks and an extension. Contours are to be placed every ten feet.
A map cross section uses the contour lines to show the shape of the land from the side as if a knife had cut through it. This resource provides step by step instructions explaining how to create a cross section on a topographic map. You could use a b or start finish or anything else you choose. Once you choose the area for your cross section draw that line on the topographic map using a ruler.
A topographic map can be used to create a cross section along any line drawn on the map. Where the contours intersect with the. Creating a map cross section. How to draw a topographic map.
The length of the horizontal access should be as wide as the distance between points a and b.
How To Construct A Cross Section From A Map Video Lesson Transcript Study Com
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