UDT Asia Postponed01/09/2010 |
| Clarion Events have decided to rescheduling UDT Asia to take place in the second half of 2011. Asia has seen a number of events taking place in recent months which have the potential to reshape the importance of undersea defence strategy and investment across the region. |
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By doing so we will have the opportunity to ensure that the conference programme and show both fully address the prevailing issues facing Asia's subsurface and undersea effects communities.
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Hydrographic Survey of Riverbed Erosion |
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.
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