Digital Terrain Analysis Final Exam Questions

Answer ALL questions. Your answers should be typed and any relevant diagram neatly drawn. Please make an effort to be thorough yet concise. You answer should be no more than one page per question (single-spaced), not including graphics. Use all resources available to you including texts, manuals, lab exercises, and help files. The exam is due on December 7 by 5 PM.

1. List and describe the standard steps of delineating watershed boundaries from a DEM. Describe two approaches to improving this standard watershed delineation procedure. (10 points)
2. You have described the watershed delineation analysis in Question 1. List and describe 3 other types of GIS analysis that require the use of digital terrain information. You must describe the general procedures, required data/information, and applications of each analysis. (10 points)
3. Describe how ArcGIS handles digital elevation/terrain data for analysis. Your answer must include 1) the various digital elevation/terrain data models in ArcGIS, 2) ArcGIS tools that convert data between these data models, and 3) how digital elevation/terrain data are related or transferred to 2D GIS layers for 3D analyses and visualization in ArcGIS. (10 points)