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A laboratory study of wave crest statistics and the role of directional spreading

Undertaken within a joint-industry-project (funded by oil companies, consultants and regulatory authorities), this work provides the first evidence of wave crests amplified beyond existing design solutions. It has led to recommendations that the largest crests should be increased by 5-8% (CresT-http://www.marin.nl/web/JIPs-Networks/Public.htm). This is significant for air-gap provision, representing a key criterion for the design of new structures and the re-appraisal of existing structures. Research is continuing within a new joint-industry-project (ShortCresT-www.marin.nl/web/JIPs-Networks/Public.htm) and several problem-specific investigations (W.S.Atkins/Talisman/Maersk/Shell: ramsay.fraser@atkinsglobal.com; jesper.tychsen@maerskoil.com). It was also the subject of a specialist WS Atkins sponsored keynote address (2013), given in Aberdeen, show-casing advances in offshore engineering.