Module 2.1: TINs and DEMS

For this week's module, we explored the processes of generating, modifying, and evaluating Digital Elevation Models (DEMs) and Triangular Irregular Networks (TINs). I learned that data collection methods, topography variations within the study area, and any elevational changes will influence the output of either the TIN or DEM. In order to achieve the best outcome, these variables will need to be accessed when choosing which technique to use. 

Below, contour lines are depicted within a specified area of study that appears to be mountainous or hilly based on the contour lines' density and the changes in elevation that created those contours. Of the two maps, the DEM provided the best outcome based on the amount of contour lines present and the smoothness of the lines. I also preferred the results given from utilizing the contours tool. The TIN map has jagged edges and makes abrupt cuts based on the data points provided. There was also a decrease in contour lines along the flatter surfaces and outlying boundary.   

DEM

TIN