10.4. Sounding Methods (Depth Measurement)

Try these first

1. 1.

   What does sounding measure?

   Hint

   Think about what activity it corresponds to in surveying.

2. 2.

   Name one direct method of sounding.

   Hint

   It's a traditional method still used today.

3. 3.

   What does sounding primarily measure?

   • Temperature
   • Water depth
   • Salinity

   Hint

   It's related to underwater surveying.

4. 4.

   True or False: LIDAR Bathymetry is effective in deep waters.

   • True
   • False

   Hint

   Think about the technology used.

5. 5.

   How would you choose a sounding method for a hydrographic survey near a coral reef?

   Hint

   Consider which technology has minimal environmental impact.

6. 6.

   If tasked with mapping a large underwater area, explain the reasoning behind using Multi-Beam Echo Sounders instead of Single Beam Echo Sounders.

   Hint

   Remember the terms width and efficiency.