This case study demonstrates the capabilities of an Innomar parametric sub-bottom profiler system to detect buried pipelines in a river environment and determine their depth of burial. A section of the Columbia River was surveyed with a few parallel lines (direction along the river) at water depths of 5 to 15 metres. Additionally, the area was surveyed with a NORBIT WINGHEAD i80S Long Range mulfi-beam system for high-resolufion bathymetry.
The following equipment was used:
- Innomar medium-100 parametric sub-boftom profiler
- NORBIT WINGHEAD i80S Long Range mulfi-beam system featuring integrated Applanix Oceanmaster INS/GNSS and integrated AML SV sensor
- NORBIT PORTUS pole mounted over the side on an 8 m survey vessel
- AML-3 sound velocity profiler