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
Nansen Ski Jump 2011, a historical marker was placed to commemorate this ski jump. Over time the ski jump evolved into a state of disrepair. In 2015, brush clearing work was started as Phase 1 torward a goal of restoring the site so visitors can view it as it once was. In 2016 and 2017, repairs to the ski jump's decking were made by Knollstone Contracting of Bow, New Hampshire, in preparation for a celebratory jump by Olympian Sarah Hendrickson, which occurred early in the morning of March 4, 2017. Nansen Ski Jump Nansen Ski Jump, also known as The Big Nansen and