Hydrographic Surveys are conducted for obtaining information on water depth in Ports, Anchorages, Rivers, Inland-water ways, Dams, Reservoirs etc, and is required for Navigation, project-cum-engineering, irrigation, tidal power, tourism, inland water ways, pre-dredging, progressive and post-dredging, Siltation, erosion, pollution, flood control etc.
The data gathered is used to make informed decisions of several types: for example vessel navigation decisions; resource management decisions; resource development decisions; marine infrastructure decisions; marine construction decisions; coastal development decisions; tactical and strategic military decisions and environmental management decisions.
- Topographical survey by DGPS
- Vertical Electrical Sounding (VES) for Ground Water