A chartplotter is a device used in marine navigation to combine GPS data with an electronic navigational chart (ENC) to display the position, heading and speed of a vessel, and may display ...

In deep waters, seismic vessels tow seismic cables, known as streamers, which contain devices called hydrophones used for detecting ... Moreover, it is possible to revisit the points precisely with ...

Although the judge dismissed the suit against the commissioner of the Maine Department of Marine Resources ... Gulf of Mexico to use approved GPS tracking devices to transmit the boat’s position ...