10.4.2. Indirect/Electronic Methods

Try these first

1. 1.

   What does SBES stand for?

   Hint

   Think about the function regarding depth measurement.

2. 2.

   Which method uses sound pulses?

   Hint

   Consider the techniques for measuring depth.

3. 3.

   What does SBES primarily measure?

   • Water temperature
   • Water depth
   • Water current

   Hint

   Consider the primary function of an echo sounder.

4. 4.

   True or False: Multi-Beam Echo Sounders provide a more detailed representation of the seabed than Single Beam Echo Sounders.

   • True
   • False

   Hint

   Remember the coverage capabilities of each method.

5. 5.

   Design a hypothetical survey scenario using both SBES and MBES. Discuss where each would be more effective and why.

   Hint

   Think about depth differences and coverage area.

6. 6.

   Create a case where LIDAR Bathymetry would be preferred over sonar methods despite its limitations. Justify your choice.

   Hint

   Consider situations where speed and accuracy in shallow waters are critical.