Sea Technology

NOV 2013

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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warming by the import of relatively warm deep waters from the interior Arctic Ocean. Since 1993, AWI oceanographers have carried out regular expeditions to the Greenland Sea on board the Polarstern to investigate the changes in this region, including extensive temperature and salinity measurements. They have combined this long-term data set with historical observations since 1950. They found that in the last 30 years, the water temperature between 2,000 meters depth and the seafoor has risen by 0.3° C. The amount of heat accumulated within the lowest 1.5 kilometers in the abyssal Greenland Sea would warm the atmosphere above Europe by 4° C. The AWI scientists will return to the Arctic in 2015 to continue their study, which has implications for understanding how climate change affects the oceans. carbon and methane; total hydrocarbons; nonmethane hydrocarbons; benzene; nitrous oxide and particulates. It is unique for a system to measure so many different emissions, and benzene and nitrous oxide are only monitored very rarely, Martek said. Martek expects to build more complex monitoring systems as the European Union pushes for emissions monitoring legislation for the maritime industry. Another factor will be Emissions Control Areas (ECAs) coming into force and, later, tightening their requirements. The frst ECA, which is in North America and covers ships trading off the coasts of Canada and the United States, came into effect August 2012 and enforces stricter controls on sulphur oxide, nitrogen oxide and particulate matter emissions. North America is the third functioning ECA; the others restrict only sulphur dioxide, and they are in the Baltic Sea and the North Sea. A fourth ECA is due to come into force in the Caribbean Sea on January 1, 2014. n First-Time Monitoring of Irish Winter Seabed Ploughing A project that has allowed the Port of Cork to precisely monitor and record the winter program of seabed ploughing in real time for the frst time ever is being delivered by Succorfsh (North Shields, England) in partnership with SEA-Tech Evolution Ltd. (Ringaskiddy, Ireland). Succorfsh has installed its SC2 vessel monitoring unit and RFID winch sensors aboard MV Denis Murphy, a 20-meter multicat utility vessel used for maintenance duties such as bed leveling and oil pollution response. Over the next six months, Port of Cork and SEA-Tech personnel will have the ability to accurately record vessel movement more frequently and in real time, and analyze activity as it happens from specifc harbor areas using the system's geofence facility. Emissions Monitoring System For Largest FSRU Martek Marine (Rotherham, England) has delivered an emissions monitoring system to Daewoo Shipbuilding & Marine Engineering Co. Ltd. (Seoul, South Korea) for the world's largest foating storage and regasifcation unit (FSRU). The 173,400-cubic-meter vessel, which can also function as an LNG carrier, is due for delivery in May 2014 when it will be deployed in Brazil. The equipment monitors nitrogen oxide, sulphur oxide, carbon dioxide, www.sea-technology.com November 2013 / st 63

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