Arctic Ocean gas reserves, and the Chukchi shelf forms the border between Russian and the United States as stated in the USSR–USA Maritime Boundary Agreement. The whole area is subject to international territorial claims. An underwater ridge, the Lomonosov Ridge, divides the deep sea North Polar Basin into two oceanic basins: the Eurasian Basin, which is between deep, and the Amerasian Basin (sometimes called the North American, or Hyperborean Basin), which is about deep. The bathymetry of the ocean bottom is marked by fault block ridges, abyssal plains, ocean deeps, and basins. The average depth of the Arctic Ocean is . The
Fridtjof Nansen the skiing resort of Frognerseteren, where Nansen recalled seeing "two feet sticking out of the snow". Eva was three years older than Nansen, and despite the evidence of this first meeting, was an accomplished skier. She was also a celebrated classical singer who had been coached in Berlin by Désirée Artôt, one-time paramour of Tchaikovsky. The engagement surprised many; since Nansen had previously expressed himself forcefully against the institution of marriage, Otto Sverdrup assumed he had read the message wrongly. The wedding took place on 6 September 1889, less than a month after the engagement. Nansen first began to consider