Guidelines for the Use of Multibeam Echosounders for Offshore Surveys’ (IMCA S 003 Rev 2) has been extensively revised by members of the International Marine Contractors Association’s (IMCA) Offshore Survey Division Management Committee, to bring it up-to-date with current technology and practice, and is now available for downloading free of charge for members and non-members alike from the IMCA website.
Printed copies of the 54-page document, which draws heavily on a number of existing standards and published papers, (by persons eminent in their particular fields), are available from email@example.com at £20 for members and £40 for non-members.
“The growth in the use of multibeam echosounders (MBES) in the past two decades has been in part due to the ability of these instruments to cover wide swathes of the seafloor in a single pass. In addition, increases in processing power and availability of data storage at reasonable prices have made the technology accessible to a wider range of users, ” explains IMCA’s Technical Director and Acting Chief Executive, Jane Bugler.
In addition to a glossary of terminology and an introduction, there are sections on multibeam echosounders (overview, installation and operation, transducer, navigation and attitude, motion sensor, heading, synchronised timing, offset measures, water level adjustments, and sound velocity measurements); subsea vehicles and systems; sensor installation, calibration and location; calibration tests (patch tests); MBES data processing; standards for MBES surveys; survey planning; and a bibliography.
Further information on IMCA
Further information on IMCA and its work on behalf of its 1000+ member companies in over 60 countries is available fromwww.imca-int.com and firstname.lastname@example.org, with information on its Offshore Survey Division at www.imca-int.com/offshore-
- IMCA is an international association with over a thousand members in more than 60 countries representing offshore, marine and underwater engineering companies. IMCA has four technical divisions, covering marine/specialist vessel operations, offshore diving, hydrographic survey and remote systems and ROVs, plus geographic sections for the Asia-Pacific, Central & North America, Europe & Africa, Middle East & India and South America regions. As well as a core focus on safety, the environment, competence and training, IMCA seeks to promote its members’ common interests, to resolve industry-wide issues and to provide an authoritative voice for its members.
- IMCA Vision & Strategy. As a result of work and collective input in 2013, IMCA has redefined its stated core purpose to be “Improving performance in the marine contracting industry”. To achieve this goal, IMCA’s Vision & Strategy has been devised with two elements in mind: Core activities and ways of working.
- IMCA publishes some 200 guidance notes and technical reports – many are available for free downloading by members and non-members alike. These have been developed over the years and are extensively distributed. They are a definition of what IMCA stands for, including widely recognised diving code of practice, DP documentation, marine and ROV good practice guidance, the Common Marine Inspection Document (CMID) – now available electronically as eCMID, safety recommendations, outline training syllabi and the IMCA competence scheme guidance. In addition to the range of printed guidance documents, IMCA also produces safety promotional materials, circulates information notes and distributes safety flashes.
About the industry IMCA serves
The marine contracting industry plays a vital global role. Its vessels account for 4% of the world’s maritime fleet. Collectively IMCA members employ some 350, 000 people and have an annual turnover of around $150bn. They work in all the world’s major offshore areas, delivering large offshore oil and gas and marine renewables projects around the globe that quite literally fuel the global economy