10.18.2. 3D and 4D Bathymetric Mapping

Try these first

1. 1.

   What does 3D mapping provide?

   Hint

   Think about the visual information it provides.

2. 2.

   What is the fourth dimension in 4D mapping?

   Hint

   What do we track over time?

3. 3.

   What does 3D bathymetric mapping primarily show?

   • Static seafloor features
   • Dynamic changes over time
   • Both

   Hint

   Focus on the capabilities of the mapping technologies.

4. 4.

   Is LIDAR a type of sonar technology?

   • True
   • False

   Hint

   Consider the type of waves each technology uses.

5. 5.

   Critically evaluate the impacts of 4D bathymetric mapping on environmental policy and planning.

   Hint

   Consider how dynamic data can influence long-term strategies.

6. 6.

   Design a study that utilizes both 3D and 4D mapping to assess an area at risk of coastal erosion.

   Hint

   Think about continuous data collection methods.