Amundsen Basin Basin formed during the Cenozoic Era from seafloor spreading. Amundsen Basin The Amundsen Basin, with depths up to 4.4 km, is the deepest abyssal plain in the Arctic Ocean. The Amundsen Basin is embraced by the Lomonosov Ridge (from to ) and the Gakkel Ridge (from to ). It is named after the polar researcher Roald Amundsen. Together with the Nansen Basin, the Amundsen Basin is often summarized as Eurasian Basin. The Russian-American cooperation Nansen and Amundsen Basin Observational System (NABOS) aims "to provide a quantitative observationally based assessment of circulation, water mass transformations, and transformation mechanisms in the Eurasian
HNoMS Fridtjof Nansen (F310) with two ultra-fast RHIBs as a replacement. In November 2009 she became involved in a fire-fight with suspected pirates after being attacked while inspecting a fishing vessel. In 2014, "Fridtjof Nansen" took part in the naval exercise RIMPAC 2014 in the Pacific Ocean. During the exercise, she used a Naval Strike Missile to sink the , a decommissioned U.S. Navy amphibious transport dock, as a target 55 nautical miles northwest of Hawaii on 10 July 2014. HNoMS Fridtjof Nansen (F310) HNoMS "Fridtjof Nansen" is a frigate of the Royal Norwegian Navy. Launched on 5 April 2006, she is the lead