Should the wire (established at a particular depth by a procedure of weights and buoys) encountered an obstruction, it could develop into taut and type a "V," revealing the depth and posture of submerged rocks and also other obstructions. This survey will obtain modern-day large resolution bathymetry for updating NOAA’s https://hydrographicsurveyindhaka03444.blogsumer.com/31657098/hydrographic-survey-no-further-a-mystery