How do researchers today routinely determine the depth of the water to the seafloor?
A)Ship-mounted gravimeters
B)A weighted roped or cable
C)High-resolution multibeam instruments
D)Laser reflector systems linked to satellites

Question

Quizplus · Accepted Answer

High-resolution multibeam instruments are the most commonly used method for determining the depth of the seafloor today. These instruments use acoustic signals to measure the depth and shape of the seafloor, providing detailed bathymetric maps. Ship-mounted gravimeters measure changes in the Earth's gravitational field and can also provide information on seafloor depth, but they are less common and not as precise as multibeam instruments. Weighted ropes or cables are an older method of determining seafloor depth that is not commonly used today. Laser reflector systems are used for measuring the distances between satellites and fixed points on land, and are not used for measuring depth in the ocean.

How Do Researchers Today Routinely Determine the Depth of the Water