Definition

In hydrographic SURVEYING, a TRIANGULATION that may be carried out by means of anchored BUOYS when surveying at such a distance from the LAND that the SIGNALS on the SHORE cannot be di­rectly used for locating the SOUNDINGS. Floating trian­gulation can be either connected to and extended from the STATIONS of a shore triangulation or of a fully floating type in which case the POSITIONS of the BUOYS are obtained by means of OBSERVATIONS and measu­re­ments taken at sea. BUOYS are anchored in such a position as to provide a framework for surveying the area.