Richard Burt, marketing director of Chelsea Group, recently was interviewd by BrooklandsFM radio. He outlined the approach to monitor the environmental impact and the work is done using Chelsea's technology.
The interview is available online following this link. It considers various aspects of the oil spill, the impact and the technology used to measure and map it.
Members of the US Geological Survey were filmed while out on the Missouri River at Williston, North Dakota, USA, performing a hydrographic survey to monitor the state of riverbed erosion. They were using a multibeam echo sounder which transmits sound energy and analyses the return signal (echo) that has bounced off the riverbed or other objects. Multibeam sonars emit sound waves from directly beneath a ship's hull to produce fan-shaped coverage of the riverbed.
