Gastech 2011 Supported by Gas Associations09/09/2010 |
| The gas conference and exhibition Gastech 2011 will be supported by 21 leading international trade associations, delivering endorsement and confirming its premier reputation within the gas industry. The show of support for Gastech 2011 from the gas industry, as well as the Dutch Government, is indicative of the regard the global gas community has for this event. |
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Read more about: exhibition conference Website: http://www.gastech.co.uk Supplier: DMGT Offshore Survey Frame Agreement ROV Survey of the Costa Concordia Grounding Site (video) 44 PMGS Transponders for Earthquake and Tsunami Research Underwater Vision to Fugro Subsea Services Award for Brazilian Hydrographic Paper Demonstrating a 'Deeper Understanding' First Real-Time Seafloor Earthquake Observatory Theme of Hydrography Day 2012: International Cooperation Finistère and Mediterranean Bathymetric Lidar Surveys Precise Positioning For BP Vessels Comments (0): |
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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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| Hydrographic Survey of Riverbed Erosion |
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