exam2_problems_spring2024

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Mechanical Engineering

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Apr 3, 2024

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GIST 420 Name__________________ Exam 2 Spring 2024 Rasters and raster processing Given the zone raster and value raster at right, calculate the zonal variety for the output raster. (6pts) Surfaces 1. The images below are two symbolized slope rasters labelled 1 and 2 with elevation contours overlaying them. The darker colors on the raster indicate higher slope values. Which slope surface was derived from a DEM interpolated using IDW , and which from a DEM interpolated using Topo to Raster? What is it about these interpolation methods that caused the differences in the slope surfaces? (5 points) outgrid zonegrid 1 2 5 5 0 1 1 5 1 valuegrid 1 4 8 6 0 24 2 1 1 4 4 4 0 5 4 16 0 8 8 = 3 3 3 0 0 0 0 5 5 4 4 4 4 1 2 3 2 2 1 1 2 1
2. In the image below, the Explore tool has been used to select a facet of a TIN. The popup displays values for three attributes -- elevation, slope, and aspect. When using the Explore tool in ArcGIS Pro to query different locations within the same triangle , which, if any, of these three attributes would return different values at different locations within the triangle and explain why. (5 pts) 2
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