Geophysical survey is used to identify resources without disturbing or sampling surfaces. This is a ground-based physical sensing technique that detects geological and other substances below the surface, and facilitates the production of a map or detailed image of a particular area.
Methods of Geophysical/ Hydrographic survey
- Surveying origins.
- Leveling.
- Coastline survey.
- Bathymetric surveying.
- Data edition.