page_title: Fridtjof Nansen
section_title: Oceanographer and traveller
hierarchical_section_title: Fridtjof Nansen / National figure / Oceanographer and traveller
caption_attribution_description: Schematic drawing of Pettersson and Nansen bottle as shown by V. W. Ekman in 1905. This bottle is used for sea water temperature sampling.
context_page_description: Fridtjof Wedel-Jarlsberg Nansen was a Norwegian explorer, scientist, diplomat, humanitarian and Nobel Peace Prize laureate. He led the team that made the first crossing of the Greenland interior in 1888, traversing the island on cross-country skis. He won international fame after reaching a record northern latitude of 86°14′ during his Fram expedition of 1893–1896. Although he retired from exploration after his return to Norway, his techniques of polar travel and his innovations in equipment and clothing influenced a generation of subsequent Arctic and Antarctic expeditions.
  Nansen studied zoology at the Royal Frederick University in Christiania and later worked as a curator at the University Museum of Bergen where his research on the central nervous system of lower marine creatures earned him a doctorate and helped establish neuron doctrine. Later, neuroscientist Santiago Ramón y Cajal won the 1906 Nobel Prize in Medicine for his research on the same subject.
context_section_description: After a period of mourning, Nansen returned to London. He had been persuaded by his government to rescind his resignation until after King Edward's state visit to Norway in April 1908. His formal retirement from the diplomatic service was dated 1 May 1908, the same day on which his university professorship was changed from zoology to oceanography. This new designation reflected the general character of Nansen's more recent scientific interests.
  In 1905, he had supplied the Swedish physicist Walfrid Ekman with the data which established the principle in oceanography known as the Ekman spiral. Based on Nansen's observations of ocean currents recorded during the Fram expedition, Ekman concluded that the effect of wind on the sea's surface produced currents which "formed something like a spiral staircase, down towards the depths".
  In 1909 Nansen combined with Bjørn Helland-Hansen to publish an academic paper, The Norwegian Sea: its Physical Oceanography, based on the Michael Sars voyage of 1900. Nansen had by now retired from polar exploration, the decisive step being his release of Fram to fellow Norwegian Roald Amundsen, who was planning a North Pole expedition. When Amundsen made his controversial change of plan and set out for the South Pole, Nansen stood by him.
  Between 1910 and 1914, Nansen participated in several oceanographic voyages. In 1910, aboard the Norwegian naval vessel Fridtjof, he carried out researches in the northern Atlantic, and in 1912 he took his own yacht, Veslemøy, to Bear Island and Spitsbergen. The main objective of the Veslemøy cruise was the investigation of salinity in the North Polar Basin. One of Nansen's lasting contributions to oceanography was his work designing instruments and equipment; the "Nansen bottle" for taking deep water samples remained in use into the 21st century, in a version updated by Shale Niskin.
  At the request of the Royal Geographical Society, Nansen began work on a study of Arctic discoveries, which developed into a two-volume history of the exploration of the northern regions up to the beginning of the 16th century. This was published in 1911 as Nord i Tåkeheimen ("In Northern Mists"). That year he renewed an acquaintance with Kathleen Scott, wife of Robert Falcon Scott whose Terra Nova Expedition had sailed for Antarctica in 1910.
  Biographer Roland Huntford has asserted, without any compelling evidence, that Nansen and Kathleen Scott had a brief love affair. Louisa Young, in her biography of Lady Scott, refutes the claim. Many women were attracted to Nansen, and he had a reputation as a womaniser. His personal life was troubled around this time; in January 1913 he received news of the suicide of Hjalmar Johansen, who had returned in disgrace from Amundsen's successful South Pole expedition. In March 1913, Nansen's youngest son Asmund died after a long illness.
  In the summer of 1913, Nansen travelled to the Kara Sea, by the invitation of Jonas Lied, as part of a delegation investigating a possible trade route between Western Europe and the Siberian interior. The party then took a steamer up the Yenisei River to Krasnoyarsk, and travelled on the Trans-Siberian Railway to Vladivostok before turning for home. Nansen published a report from the trip in Through Siberia. The life and culture of the Russian peoples aroused in Nansen an interest and sympathy he would carry through to his later life. Immediately before the First World War, Nansen joined Helland-Hansen in an oceanographical cruise in eastern Atlantic waters.
caption: The Nansen bottle was used to sample seawater temperature at specific depths
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