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 was laid up for several months, with influenza and later phlebitis, and was visited on his sickbed by King Haakon VII. Nansen was a close friend of a clergyman named Wilhelm. Nansen himself was an atheist. Nansen died of a heart attack on 13 May 1930. He was given a non-religious state funeral before cremation, after which his ashes were laid under a tree at Polhøgda. Nansen's daughter Liv recorded that there were no speeches, just music: Schubert's "Death and the Maiden", which Eva used to sing. In his lifetime and thereafter, Nansen received honours and recognition from many countries.