Mod 2.1: TINS and DEMS

 

The above image is an example of utilizing a TIN for geographic analysis. The contrasting colors and elevation symbolize the ideal and subpar locations for a ski resort. By using 3D modeling one can infer why exactly a ski resort should be where it is (higher elevations mean better skiing peaks). 

The desirable parameter was determined by creating a weighted overlay of Aspect, Slope, and Elevation layers. The elevation layer used was the TIN and this was also used as the ground source for the 3D scene. The TIN was derived from a supplied DEM, by using the Raster to TIN tool.

Module 1.3: Assessment

 

The above map depicts the comparison of the level of completeness of the centerlines and TIGER road shapefiles for Jackson County, Oregon. From my numerical calculations, the centerlines data source is more complete, and this is reflected in the map, by there being more blue squares. This is important to determine which road network would be a better source for research. The map was created by joining a new field that measured the percent completeness of each grid square, and then creating a chloropleth map.

Module 1.2 Standards

 

Figure 1: Sampling Locations

Figure 2: Accuracy Results

The Sampling Locations were created by using a point layer to mark the intersections of the ABQ layer and the street maps layer. A reference point layer was created for where the intersection was on the provided rasters. From the results, the ABQ layer appears to be more accurate compared to the streetmap layer.