Michael Bjerrum has joined MacArtney A/S as Sales and Marketing Manager and will be based at the head offices in Hjerting, Denmark. Michael has a background in mechanical engineering and has been working with sales and marketing over the past 12 years primarily in the oil and gas industry.
Michael Bjerrum has joined MacArtney A/S as Sales and Marketing Manager and will be based at the head offices in Hjerting, Denmark.
His experiences include working for subsidiaries abroad as well as managing corporate sales and marketing.
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.