When the wire (established at a particular depth by a process of weights and buoys) encountered an obstruction, it might become taut and kind a "V," revealing the depth and posture of submerged rocks along with other obstructions. The coastal place of Bangladesh may be very shallow and indented in https://alexistadzy.bloggazzo.com/31409290/the-best-side-of-hydrographic-survey-in-bangladesh