1.16.6. Digital elevation models (DEMs)

Try these first

1. 1.

   What does DEM stand for?

   Hint

   Think about what it represents in terms of geographical data.

2. 2.

   Why are DEMs important for engineering projects?

   Hint

   Consider applications of terrain data in construction.

3. 3.

   What is the main function of a Digital Elevation Model (DEM)?

   • To represent brightness values in images
   • To depict spatial distributions of elevations
   • To provide soil composition data

   Hint

   Think about what DEM specifically measures.

4. 4.

   True or False: DEMs are only used for military applications.

   • True
   • False

   Hint

   Consider the broader implications of DEMs.

5. 5.

   Design a regional analysis project using DEM data. Outline the steps you would take to utilize DEMs from the initial data collection to the final reporting.

   Hint

   Consider all phases from data collection to practical applications in planning.

6. 6.

   Evaluate a case study where inaccurate DEM data led to project challenges. Discuss the potential fixes or improvements that could be implemented.

   Hint

   Think about the implications of elevation data on project decisions.