topographic map f23 profile, draw and interpolate

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Mineral Area College *

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2200

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Geography

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Dec 6, 2023

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docx

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6

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Name_______________________(Write on the copy from the lab kit and upload an image of the completed lab in mymac). The lab may also be downloaded and printed from the assignment in mymac. Lab adapted from: https://pressbooks.bccampus.ca/geolmanual/chapter/exercises-on- topographic-maps/ A.1. The following topographic map (Figure 6.13) is from a coastal area. All contour lines are spaced at a 20 m contour interval. Figu re 6.13 | Coastal area topographic map. Source: Karla Panchuk (2020) CC BY-SA 4.0, adapted from J oyce M. McBeth (2018) CC BY-SA 4.0 ( view source ) and Brad Deline (2017) CC BY-SA 3.0 (view source). a) Label the elevation of every contour line on the map. Remember: Elevations are measured in meters above sea level. (The Ocean has an elevation of 0) b) What is the elevation difference between the heavy contour lines?
A.2. Figure 6.14 shows five waypoints (A, B, C, D, and E) on a topographic map. The dashed lines are contour lines. The slope of the area is uniform. a) Write your estimates for the elevation at each waypoint next to the waypoint. b) How did you decide on the estimated elevations for points A and E? Figu re 6.14 | Estimating elevations exercise. Note that the double thick line is the edge of the figure, not a part of the topographic map. Source: Joyce M. McBeth (2018) CC BY-SA 4.0
A.3. Drawing Topographic Contours Imagine you are a geologist and you are tasked with creating your own coastal topographic map, so you hike around a coastal area with a GPS receiver (Global Positioning System) and every so often you record your position along with the elevation in meters at that point, which results in the map below (Figure 6.15). Complete this map by adding in contour lines using a contour interval of 100 m . Draw the contour lines so that they are continuous: they will either continue to the edge of the map or form an enclosed circle. Your contour lines will generally fall between the GPS points on your map, so you will need to estimate many of the contour line positions. Be sure to label your contour lines. Figure 6.15 | Elevation measurements. Source: Joyce M. McBeth (2019) CC BY-SA 4.0, after Brad Deline (2017) CC BY-SA 3.0 view source
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