Laurent Beguery
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- SeaExplorer Underwater Glider Sets Record Marine Technology, Jan 2014 #36
ACSA announced that the SeaExplorer glider (featured on this month’s cover of Marine Technology Reporter), developed by ACSA in partnership with ACRI, CNRS and IFREMER, completed a two-month record mission in collaboration with the Laboratoire d’Océanographie de Villefranche (LOV) of National Center for Scientific Research (CNRS) and Pierre and Marie Curie University (UPMC). “The mission objective was to evaluate the endurance of our first glider equipped with rechargeable batteries while performing several round trips between France and Corsica Island” said Dr. Hervé Claustre of the CNRS LOV. ACSA introduced rechargeable Li-Ion batteries as an effective, reliable and affordable solution. “The SeaExplorer glider has also acquired a wealth of high resolution data along its transects whose results will be presented by LOV at the Ocean Science Meeting in Honolulu Hawaii in February 2014,” said Dr. Claustre.
Launched on September 5, 2013, LOV scientists recovered the glider on November 5, 2013 at Bay of Angels on the French Riviera. Completing a two-month mission, the SeaExplorer glider, according to ACSA, became the first glider to break a double world record for multi-sensors Unmanned Underwater Vehicle (UUV) with rechargeable batteries.
Journey of the SeaExplorer
Reaching the milestone of 60 days and a total of 1,183 km on a single battery charge, the SeaExplorer glider was launched south of Nice and averaged 0.5 knots, providing more than 1,168 profiles of the water column from near surface to 500m depth with 100% communications even in high sea-states. Supervised by satellite telemetry from onshore office using ACSA’s IRIS software, the performance was manually stopped whereas internal parameters indicated 18% of its battery energy remaining.
Besides the platform’s endurance record, the scientific payload was equipped with SeaBird pumped CTD (Conductivity/Temperature/Depth) and Dissolved Oxygen sensors recording continuously at 4 seconds inter-sample time (metric resolution) for a total of 90 Mo. First comparisons of the SeaExplorer dataset with simultaneous profiles from a ship-borne CTD-rosette show very good data quality, even across strong temperature gradients, according to ACSA.
“I am delighted with SeaExplorer performing eight weeks and setting this record,” said Laurent Beguery, expert consultant for ACSA, from the French Operating Gliders Center (CNRS DT/INSU). “The performance of the endurance test is clearly a success. This means that this first rechargeable glider is now mature enough to represent a reliable alternative to alkaline and primary Lithium powered gliders. I personally do appreciate that this type of glider avoids operations of batteries replacement every 2 to 4 months and reduces, to 20 hours only, immobilization time for refueling at the workshop. In other words, for scientists, it makes lots of savings in materials replacement, technician man-hours as well as for ballasting time and … hopefully increases the Mean Time Between Failures (MTBF).” In addition, as most organizations – particularly research organizations – are budget challenged going forward, cost optimization concerns are today top-line discussion regarding the types of tools employed to study the oceans. Developers and proponents of SeaExplorer maintain that it has proven to require fewer technicians, helping to save costs. To understand the unique capability of rechargeable as a major step forward in the challenge to increase cost-effectiveness of gliders operations, Patrice PLA, Sales & Marketing Director said “Out of 10 months of at-sea operations per year, rechargeable batteries not only grant higher availability rate but also reduce operating costs between 75,000 to 150,000 Euros per glider over five years compared to alkaline and primary Lithium batteries traditionally used by scientists.”
The SeaExplorer Platform
SeaExplorer can navigate at sea for months to persistently gather subsea data down to 700m depth. For oceanographic applications, following six sensors are already integrated and available off-the-shelf: Conductivity/Temperature/Pressure (CTD), Dissolved Oxygen (DO), Chlorophyll, Phycobilins, Turbidity and Chromophoric Dissolved Organic Matter (CDOM). On-going developments concerns acoustic payload for marine mammals detection, nitrate sensor, video camera for jellyfish observation and an hydrocarbon sensor to monitor oil spills and marine pollutions. Also are considered current (ADCP) and turbulences sensors. Given the open software and hardware architecture of the scientific SeaExplorer payload, all users can easily and fastly integrate their own custom sensors. In addition, it is important to note that the interchangeable payload design enables users to conveniently remove and replace sections upon sensors needed. To increase operating reliability, new safety devices such as Argos and underwater pinger are now available in option. The SeaExplorer provides universities, governments and scientists with an affordable UUV to cost-effectively monitor the ocean.
www.acsa-alcen.com
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September 2023 - Marine Technology Reporter page: 11of the glider, we try to get the best of the said Beguery. software, so on our piloting map in- data out of it.” “But the real trick is to give the posi- terface, we can see now dots when we tion of the whales; that’s very important know there is a whale present. There is a The PIAQUO Project for us.
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September 2023 - Marine Technology Reporter page: 10impact of maritime traf? c and adapting it in real time to the ecosystems. A main technology partner is the Alseamar SeaExplorer glider, as Laurent Beguery, Alseamar, explains. Based in Rousset, France, Alseamar is made of ? ve business volcano. “Each mission is only two weeks long, because the units
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September 2020 - Marine News page: 49cloud infrastructure upon completion of the tri- als. The surveyor can then play back the DP Annual trial an addition to the existing DYNAPOS notation. Laurent Leblanc, Vice-President and Marine Operations program onshore, based on the high-quality DP data ac- cumulated. Each test is unique and can be played
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December 2018 - Maritime Reporter and Engineering News page: 44the largest cruise ship ever and she’s leav- ing Saint-Nazaire’s yard after reaching outstanding ? nishing levels,” said STX France chief executive, Laurent Castaing. Among the ship’s notable features are a 10-deck-tall slide, a zipline, laser tag, a large selection of dining options and Broadway musicals
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October 2018 - Marine Technology Reporter page: 45(LOV-CNRS), Louis the period when the glider was sampling the cyclonic Prieur (LOV-CNRS), Fréderic Marin (IRD), Yann Le Page (Alseamar) and Laurent Beguery structure are plotted. (Alseamar) for their scienti? c assistance. Your View Below the Surface HYPACK software gives you a clear view beneath
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August 2018 - Maritime Reporter and Engineering News page: 91corrosion protection to meet ?$URXQGWKH&ORFN6HUYLFH extended shaft withdrawals. ?'U\'RFNDQG:HW%HUWK6HUYLFHVDWRXU.H\ +LJKZD\/RFDWLRQ Louis St Laurent ?)ORDWLQJ(TXLSPHQWWR6HUYLFH9HVVHOVDW&DUJR3LHUV CCG’s largest and heaviest icebreaker, the CCGS Louis St Laurent, was ? rst commissioned in 1969
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February 2018 - Maritime Reporter and Engineering News page: 38style and the company Kering (which owns a number of luxury brands including name is pronounced “po non,” dropping the ‘t.’ But Edie Ro- Yves St. Laurent and Gucci, to name a few). driquez, charged with spreading the PONANT name in North So, in short, Ponant has a well-funded, passionate owner America
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November 2016 - Maritime Reporter and Engineering News page: 10. CCG Louis ditional icebreakers and there has been million for preliminary design work on a gions is at risk. America needs icebreakers, not more St. Laurent was commissioned 49 years increasing support for this initiative in new polar icebreaker. ago. It is expected to provide an effec- Congress, but
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October 2016 - Maritime Reporter and Engineering News page: 63Egyptian and French CEO of DCNS, Hervé Guillou, navies will participate in a joint and the president of STX France, exercise. Since June, 180 Egyp- Laurent Castaing, together with tian sailors have been receiving senior French and Egyptian of? - training in Saint-Nazaire on this cials. By 2020, DCNS
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July 2016 - Maritime Reporter and Engineering News page: 33to differentiate between ships DND’s requirements. Power points out of the time.” Small iceberg off the port bow of Canadian Coast Guard ship Louis St-Laurent. (Photo: Canadian Coast Guard) www.marinelink.com 33 MR #7 (26-33).indd 33 7/7/2016 12:42:33 P
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January 2016 - Maritime Reporter and Engineering News page: 45“We have two ships on the ter ? eet is the 87-m, 210-passenger MS gers to such destinations as India, Ma- Ganges built in Calcutta, ships on the Saint Laurent, operated by Haimark® yanmar, and Cambodia. The company Irrawaddy built locally and ships on the Image: Blount Boats Line (and owned by Clipper
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December 2015 - Maritime Reporter and Engineering News page: 63gallons Tons: 3.25 tonnes Top Speed: 23 KT Fuel Capacity: 360 liters Meet The ‘Gobbler’ Design Approval: LR In collaboration with Naval Architects Laurent transportable, lightweight, highly maneuverable, Giles Ltd, a team of boatbuilders has developed a environmentally friendly, safe and simple to
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December 2015 - Marine News page: 40VESSELS The Gobbler Moose M3 Multi-Missioned Platform In collaboration with Naval Architects Laurent Giles When Moose Boats ? rst built its M3 (34’-4” LOA) mono- Ltd, a team of boatbuilders has this year developed a ? ber- hull demonstrator in 2011, the move may have surprised glass response vessel that
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October 2015 - Maritime Reporter and Engineering News page: 13Coast North Pole on snow-mobiles. In 1969, ing vessels are increasingly venturing where people go, have their picture tak- Guard Ships Louis S. St-Laurent and four British nationals with the British into Arctic waters. Natural resource ex- en (often a sel? e), and then brag to their Terry Fox jointly
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October 2015 - Maritime Reporter and Engineering News page: 12Po- near, depending upon ice conditions) the because the Earth is not a perfect and diesel-electric icebreaker Kaptain Dra- lar Sea and CCGS Louis S. St-Laurent North Pole, passengers may climb down uniform sphere. This wobbling is in the nitsyn and four by the research vessel reached the North Pole on
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October 2015 - Marine News page: 49VESSELS Boat of the Month The Gobbler A unique vessel designed to address a wide range of oil spill scenarios. In collaboration with Naval Architects Laurent Giles coveted 150 nautical mile structural offshore certi? cation. Ltd, a team of boatbuilders has developed a ? berglass re- This permits installation
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March 2015 - Maritime Reporter and Engineering News page: 45a heavy ice environment (for the) rescue. Credit: USCG Photo, Patrick Kelley, Photographer to the Commandant The Canadian Coast Guard Ship Louis S. St-Laurent makes an approach to the Coast Guard Cutter Healy in the Arctic Ocean. MR #3 (42-49).indd 45 MR #3 (42-49).indd 45 3/3/2015 10:56:19 AM3/3/2015
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November 1978 - Maritime Reporter and Engineering News page: 12that the materials' erosion corrosion rates are within tolerable limits. Paper No. 10—"Ice Effect Tri- als in Arctic Waters on CCGS Louis S. St. Laurent" by Peter G. Noble, Roderick J. Allan, Mal- colm Dunne and Brian Johnson. Synopsis — An Arctic probe was made in May 1977 with the CCGS Louis
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December 15, 1978 - Maritime Reporter and Engineering News page: 12adventurous among the members were pleased with a report and paper on the 1977 Arctic probe of the Canadian Coast Guard icebreaker CCGS Louis S. St. Laurent. The authors brought a wealth of experi- ence in naval architecture and marine engi- neering to the meetings and represented pri- vate industry
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October 1980 - Maritime Reporter and Engineering News page: 26Packing & Rubber U.K. BOC TechSep U.K. British Brown Boveri U.K. Bran & Luebbe U.K. Braunschweiger Flammenfilter W. Germany BSL Bignier Smid Laurent France Camrex U.K. CEMAN Special Container W. Germany Centromor . . . . Poland Clouth Gummiwerke W. Germany Compagnie des Containers Reservoi
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May 2014 - Marine Technology Reporter page: 50of quantitative multibeam and multifrequency single beam systems on board our vessels that carry out biological survey and research,Ó adds Laurent Berger, Þ shery acoustician at Ifremer. Ifremer Receives ScientiÞ c Multibeam May 201450 MTRMTR #4 (50-64).indd 50MTR #4 (50-64).indd 505/12/2014
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August 1983 - Maritime Reporter and Engineering News page: 31Canada, Inc. 540 Woodward Avenue Hamilton, Ontario L8N 3K2 (416)528-8811 •MONTREAL, QUEBEC Westinghouse Canada, Inc. 180 Rue Authier St. Laurent, Quebec H4M 2C6 (514) 748-8811 •ST CATHARINES, ONTARIO Westinghouse Canada, Inc. 475 Glendale Ave. St, Catharines. Ontario L2R 7K1
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January 1991 - Maritime Reporter and Engineering News page: 63Grace & Co., 300 Genesee Street, Lake Zurich, IL 60047 Hatch & Kirk, 5111 Leary Avenue NW, Seattle, WA 98107 KHD Canada, Inc., 4420 Garand, Ville St-Laurent, Quebec, CANADA H4R 2A3 Kim Hotstart Mfg Co., E 5724 Broadway Ave, P.O. Box 42, Spokane WA 99210 MAN B&W Diesel GmbH, Stadtbachstrasse 1,
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January 1991 - Maritime Reporter and Engineering News page: 15a call. For the bigger picture of how DEUTZ MWM can power your future, contact: Karl Heinz Goetz KHD CANADA INC. 4420 Garand Street Ville St-Laurent, Quebec Canada H4R 2A3 Tel.: (514) 335-3150 Fax: (514) 332-4173 Ttelex: CNP 5 824 954 khdcanmtl Wolfgang Libbach JMOTOREN-WERKE MANNHEIM