Ocean Scientific International (OSIL) has placed an order for three Sea-Bird SBE 911 CTD instruments and associated equipment for its client, the UK Ministry of Defence (MoD). The instruments replace the existing CTD suite on UK ships in order to maintain the MoD’s capability in high-quality oceanographic data collection.
OSIL is currently under contract to the MoD to support its oceanographic operations, with the service, repair and calibration of CTDs and salinometers along with personnel training.
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.
