Delegates from the French Research Institute for Exploration of the Sea (Ifremer) visited the Kongsberg Maritime Subsea headquarters in Horten, Norway late December 2013 for the Factory Acceptance Test of its second Simrad ME70 scientific multibeam echosounder. Ifremer acquired the multibeam echo sounder – the Simrad ME70 delivered as part of the mid-life refit of the L’Europe Research Vessel – to strengthen its work in the Mediterranean Sea. Sea trials on the refit vessel are planned for March 2014.
The delivery completes the already installed Simrad EK60 scientific single beam echosounder system to create a standardized package that combines quantitative single beam and multibeam systems for vessels that carry out biological surveys. Ifremer has also chosen the ME70 bathymetric module, enabling the ME70 to perform seabed mapping according to international standards while at the same time doing ecosystem surveys of the water column.
The Simrad ME70 has a built in calibration functionality in the software, made possible because the ME70 utilizes split beams in all beams. A calibration sphere with known target strength is used to calibrate the entire system, allowing the user to obtain absolute backscatter values from ecosystem components such as plankton, fish or bottom habitat. Calibrated backscatter data are also relevant for bottom classification, as backscatter levels can be compared on the same scale.
Also the Simrad ME70 offers its fully populated element array in both alongship and athwartship direction. A total of 800 individual elements in the transducer are used to form up to 45 split beams spread out in a fan in the athwartship direction. As individual beams are formed in both transmission and reception, two way side lobe suppression give side lobe levels lower than -35 dB. Coupled with Frequency Rotated Directional Transmission (FRDT), where operating frequency is shifted between the beams to avoid interleakage, the ME70 is designed to allow the user to measure weak targets close to strong ones, which is essential when your goal is to map the entire marine ecosystem.
“The ME70 has added another dimension to our biological surveys on board the R/V Thalassa as it addresses some of the physical shortcomings of quantitative single beam echo sounders such as low resolution and sampling volume. It has been many years since we started using the ME70 on Thalassa, but we have now come to a point where we standardize the combination of quantitative multibeam and multifrequency single beam systems on board our vessels that carry out biological survey and research,” adds Laurent Berger, fishery acoustician at Ifremer.
(As published in the May 2014 edition of Marine Technology Reporter - http://www.marinetechnologynews.com/Magazine)
The U.S. Coast Guard (USCG) Cutter Polar Sea and the Canadian Coast Guard Cutter Louis S. Ste. Laurent reached the North Pole on August 22, becoming the first North American surface ships to reach the North Pole. The Polar Sea is a 399-ft. (122-m) icebreaker from Seattle, Wash., and the Ste.
Wall Rope Works, a division of Wall Industries, Inc., Beverly, N.J., announces the recent promotion of J.R. Breedlove to vice president of manufacturing, and G.A. Berger to plant manager. Mr. Breedlove has 15 years of experience in engineering, production, and management positions with Wall Rope. Mr.
Smith Berger Marine, Inc., Seattle, Wash., has developed a line of chain stoppers designed for mooring loads up to the breaking strength of the chain. Designed to ABS, Lloyd's, or DNV standards, the new stoppers are intended for use on FPS and FPSO vessels. One of the features of this design is the
By letter of November 2, 1978, A r t e m i s Marine Company has amended its application filed May 9, 1976, for a Title XI guarantee to aid in financing the construction of an integrated tugbarge unit of the Catug (catamaran- tug) design. Artemis, located at 410 Lakeville Road, Lake Success, N.Y.
Capt. Leo V. Berger, president of Avon Steamship Company and its affiliate, Apex Marine Corp., has been given the U.S. Merchant Marine Academy Alumni Association's highest honor in 1985, its Alumnus of the Year Award. Recipients of this award are chosen on the basis' of their career achievements and
— Literature Available Smith Berger Marine, Inc., Seattle-based manufacturer and distributor of marine hardware and seafood processing machinery, has appointed two major U.S. East Coast marine equipment distributors, according to company president James L. Montgomery. Maritime Equipment, Inc., with
Acadian Shipping Corp., a subsidiary of Apex Resources — an affiliate of the Berger Group, Lake Success, N.Y.—has applied for a Title XI guarantee to aid in financing the purchase and reconstruction of the 17,525-dwt RO/RO vessel Atlantic Bear. MarAd has conditionally agreed to sell the roll-on/roll-
planning and cost/schedule control system, which will be used to plan and manage HDI's $60-million refit work on the Canadian icebreaker Louis St. Laurent. With this contract, 10 North American shipyards are now using Perception. The system addresses the various issues of production planning and control
The Australian Reefer, first of four 630,000-cubic-foot refrigerated cargo ships under construction for J. Lauritzen A/S of Copenhagen, was launched recently at the Ulsan Shipyard of Hyundai Heavy Industries Company, Ltd. in South Korea. These four vessels will be the largest and most modern reefers
The Maritime Administration has approved the award of contracts totaling nearly $27 million for the retrofitting of pollution abatement and safety equipment aboard four tankers and two ore / bulk/oil (OBO) vessels owned by subsidiaries of the Berger Group, Lake Success, N.Y. The retrofits are
Maine's Bath Iron Works Corp. has announced the appointment of four new directors as part of its program to continue strengthening its advanced technology program and to prepare for upcoming shipbuilding projects. James R. Vander Schaaf has been promoted to program manager for the shipyard's Advanced
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