Second the data is projected to the sea floor.
Using sonar to map the ocean floor.
The goal of this study is to generate high resolution sea floor maps using a side scan sonar sss.
Sonar single beam.
The first modern breakthrough in sea floor mapping came with the use of underwater sound projectors called sonar which was first used in world war i.
Despite this long history of mapping the seafloor only about 10 to 15 of the ocean has yet been mapped in high resolution.
Mapping techniques have improved over time but only the use of sound sonar has permitted large scale high resolution seafloor measurements.
Tools used to map the ocean floor today s technology lets scientists to study the ocean in a quicker and precise way.
First the raw sensor data is corrected by means of a physics based sss model.
By the 1920s the coast and geodetic survey an ancestor of the national oceanic and atmospheric administration s national ocean service was using sonar to map deep water.
The technique first used by german scientists in the early 20th century uses sound waves bounced off the ocean bottom.
This is achieved by explicitly taking into account the sss operation as follows.
There are three tools used to map the ocean floor sonar satellites and submersibles.
Noaa scientists primarily use sonar to develop nautical charts locate underwater hazards to navigation search for and map objects on the sea floor such as shipwrecks and map the sea floor itself.