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8300 BCE
Net
The fishing net has been used as long as anyone can remember. Created millennia ago, since then they have made many advances in net technology along with many other things in this timeline. -
1111
The compass
The compass was invented close to the start of time but wasn't used for maritime navigation until a lot later. -
Dredging
Dredging began in the construction of the Suez Canal in France. It was used to pick up different things from the sea floor. -
SONAR
SONAR stands for sound navigation and ranging.This helped oceanographers get an idea of what the seafloor was like and showed them different depths at different points. -
ROV
ROV states for remotely operated underwater vehicle. The rov is crucial to oceanic discovery, giving us the best look at the bottom of the ocean without physically going down there. -
Map of Ocean floor
The first map of the ocean floor was made by Marie Tharp. This gave anybody studying the ocean a good look at what was below them. -
The Calypso
The calypso the the worlds first underwater camera. Created in Australia, this camera gave biologists the ability to capture photographs of a multitude of marine species. -
CTD sensors
CTD is short for conductivity, temperature, and depth. These sensors can tell all this as well as sampling the underlying water mass. Sampling means it can determine things like nutrients, water chemistry, or cell counts. -
Seasat 1
(Launch date) Seasat 1 was the first satellite launched to space for ocean purposes. This satellite had a versatile use but was mainly used for mapping the ocean by measuring bumps on the seafloor with a radar altimeter. -
ADCP
ADCP, also known as acoustic doppler current profiler. When these came to be sailors were able to measure currents of the ocean from the comfortability of the ship.
