For this module, we discussed creating, editing, and analyzing TINs (Triangular Irregular Networks) and DEMs (Digital Elevation Models). One of the lessons I learned that this week is that the GIS Analyst must determine what techniques work best for the given study area. For example, data collection methods, study area terrain, and elevation are a few factors that impact which techniques produce the most accurate results. In this case below, the contours noted for the study area appear to be more accurate with the DEM.
TIN:
DEM:
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