The Hydrographic Society UK is organising a seminar day on 27th October 2009 on Maritime Spatial Data Infrastructure: 'Measure Once, Use Many'. Keynote speaker during this event, to be held in Bradfield College at Reading, will be National Hydrographer Rear Admiral Ian Moncrieff.
Key themes that will be addressed are data collection, maritime spatial data infrastructure, and a wide range of surveying aspects.
The seminar will start at 09.00 and last until 17.30.
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.
