Arctic Ocean deepest point is Litke Deep in the Eurasian Basin, at . The two major basins are further subdivided by ridges into the Canada Basin (between Alaska/Canada and the Alpha Ridge), Makarov Basin (between the Alpha and Lomonosov Ridges), Amundsen Basin (between Lomonosov and Gakkel ridges), and Nansen Basin (between the Gakkel Ridge and the continental shelf that includes the Franz Josef Land). In large parts of the Arctic Ocean, the top layer (about ) is of lower salinity and lower temperature than the rest. It remains relatively stable, because the salinity effect on density is bigger than the temperature effect.
Fridtjof Nansen mountainous region of Telemark, where a new style of skiing was being developed. "I saw this was the only way", wrote Nansen later. At school, Nansen worked adequately without showing any particular aptitude. Studies took second place to sports, or to expeditions into the forests where he would live "like Robinson Crusoe" for weeks at a time. Through such experiences Nansen developed a marked degree of self-reliance. He became an accomplished skier and a highly proficient skater. Life was disrupted when, in the summer of 1877, Adelaide Nansen died suddenly. Distressed, Baldur Nansen sold the Store Frøen property and moved