A SECRET WEAPON FOR HYDROGRAPHIC SURVEY IN DHAKA

Hydrographic survey vessels use both a multibeam sonar and towed facet scan sonar to map the sea flooring. Hydrographic Survey InformationAfter analyzed, The situation may very well be marked on Exclusive charts. With the advent in the side scan devices and multi-beam sounders, wire drag surveying little by little turn into redundant via the nineti