Parametric Rolling IG Circular - Top Tier Report Publications Steamship Mutual Published: January 03, 2022 Contact author Download article pdf Members are advised that the  International Group  recently became a member of the Maritime Research Institute of the Netherlands (MARIN) Top Tier project. The project has been established to examine and assess the causes of container losses arising from at-sea incidents onboard various sizes of container ships, with a particular focus on ultra large container ships. The project has been approved by a cross section of industry, academic and government interests and MARIN will, in due course, be producing a report of its findings, including recommendations. It is envisaged that the recommendations will eventually lead to operational and technical improvements that are intended to mitigate the risk and underlying causes of container losses at sea. In the meantime, the International Group has received the interim note on parametric rolling  which all clubs assess to be of crucial importance to container ship operators, masters and crew. The note is technical and intended for use by seafarers and company operational staff. This circular is not intended to assess or critique the note but to draw Member’s attention to the phenomenon of parametric rolling. Member’s are also reminded of our recent  Risk Alert on “Containerised Cargo Stowage and Securing”  Steamship Mutual, a Member of the International Group of P&I Clubs.