How did the study of bathymetry progress with new technologies? Include important developments
and events in history that impacted bathymetry. What will be an ideal response?
ANS:Answer
should include:
? In 85 BCE, Posidonius began to study bathymetry in the Mediterranean Sea. He used
two kilometers of rope with a stone at the end of it. The rope was hand lowered over the
side of the ship until it hit the bottom.
? The HMS Challenger used a similar method of lowering a rope, but then used a steam
powered winch to move the line.
? The sinking of the Titanic in 1912 led to the invention of the "Iceberg Detector and Echo
Depth Sounder." This device was adapted for Naval use by the United States in 1922. It
was then used on the German research vessel Meteor a few years later.
? Single beam echo sounders improved and multiple beams were attached to the hulls of
ships resulting in a multibeam echo sounder. The multibeam sounder produced more
detailed images because it generated additional beams of sound.
? Satellites have increased the amount of information available about the seafloors.
Satellites are efficient and accurate. They measure the surface height of the ocean which
varies with different bathymetric features
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