Scientists use cameras and sonar near the u s.
Scientists mapping the sea floor find the most.
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.
Virgin islands identifying and mapping critical coral.
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.
Seafloor mapping also called seabed imaging is the measurement of water depth of a given body of water bathymetric measurements are conducted with various methods from sonar and lidar techniques to buoys and satellite altimetry various methods have advantages and disadvantages and the specific method used depends upon the scale of the area under study financial means desired measurement.
With nearly 3 430 square kilometers 1 324 square miles mapped since 2004 scientists from the national centers for coastal ocean science and their partners continue exploring the waters surrounding puerto rico and the u s.
Published today this is the most detailed map of the ocean floor ever produced using satellite imagery to show ridges and trenches of the earth s underwater surface even for areas which have.
They will use state of the art technology to explo.