Geography > QUESTIONS & ANSWERS > GEOG 222.3: Introduction to Geomatics, Geospatial Lab Application 9: Digital Terrain Analysis (70 po (All)

GEOG 222.3: Introduction to Geomatics, Geospatial Lab Application 9: Digital Terrain Analysis (70 points intotal).A+ Guide, 100% correct answers

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Question 13.1 (5 points): How does the pseudo-3D view from this position and altitude aid in bringing out the terrain features of Zion (compared to what you originally saw in the overhead view earli... er)? The pseudo view perspective offers more of a side view of the Zion terrain and topography. This allows us to observe that the park is located in a sort of mountain valley area, surrounded by tall, rocky mountains. Although the original aerial view did provide some information on the mountainous area, the vast size of the mountains is much more obvious when observed from this side perspective. Question 13.2 (5 points): How did the vertical exaggeration value of 2 affect the view of Zion? Increasing the vertical exaggeration value to 2 made the points of higher elevation of the tall mountains appear significantly higher. This made minor elevation changes much easier to visualize because they become so much more prominent. Question 13.3 (5 points): Try the following values for vertical exaggeration: 0.5, 1, and 3. How did each value affect the visualization of the terrain? In addition to the value of 2 you examined in Question 13.2, which value of vertical exaggeration was the most useful for a visual representation of Zion and why? A vertical exaggeration of 0.5 made the elevation parts of this area seem shorter or more flat than they had looked originally, with the mountains not looking as tall. A value of one made the points of elevation appear a bit more prominent than the value of 0.5. A value of 3 made the elevations extremely exaggerated and unrealistic in my opinion; elevations points were very high. I think [Show More]

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