18.11.2.3. 3D data

Try these first

1. 1.

   What does LAS stand for?

   Hint

   It relates to a type of data used in aerial surveying.

2. 2.

   Define DEM.

   Hint

   What digital method is used for terrain analysis?

3. 3.

   What does a DEM represent?

   • Digital Elevation Model
   • Digital Earth Model
   • Dynamic Elevation Model

   Hint

   Focus on what 'DE' stands for.

4. 4.

   LAS files are used to store which type of data?

   • True
   • False

   Hint

   Think about LiDAR's relationship with 3D data.

5. 5.

   What are the potential applications of 3D data in civil engineering, and how might they influence project outcomes?

   Hint

   Think about how visualization can aid in stakeholder presentations.

6. 6.

   Analyze how integrating LiDAR data into existing GIS infrastructure could improve environmental assessment accuracy.

   Hint

   Consider the level of detail present in 3D data versus 2D imagery.