Ekman , Vagn Walfrid
(1874–1954) Swedish oceanographer
Ekman, the son of an oceanographer, was born in the Swedish capital of Stockholm and educated at the University of Uppsala, graduating in 1902. He worked at the International Laboratory for Oceanographic Research in Oslo (1902–08) before he moved to Lund, Sweden, as a lecturer in mathematical physics, being made a professor in 1910.
In 1905 Ekman published a fundamental paper, On the Influence of the Earth's Rotation on Ocean Currents. This work originated from an observation made by the explorer Fridtjof Nansen that in the Arctic drift ice did not follow wind direction but deviated to the right. He showed that the motion, since known as the Ekman spiral, is produced as a complex interaction between the force of the wind on the water surface, the deflecting force due to the Earth's rotation (Coriolis force), and the frictional forces within the water layers.
Ekman also studied the phenomenon of dead water, a thin layer of fresh water from melting ice spreading over the sea, which could halt slow-moving ships. This, he established, resulted from the waves formed between water layers of different densities. TheEkman current meter, invented by him, is still in use.

Scientists. . 2011.

Look at other dictionaries:

  • Vagn Walfrid Ekman — (* 3. Mai 1874 in Stockholm; † 9. März 1954 in Gostad nahe Stockaryd) war ein schwedischer Physiker und Ozeanograph. Leben Sein Vater Fredrik Laurentz Ekman war ebenfalls …   Deutsch Wikipedia

  • Vagn Walfrid Ekman — Naissance 31 mai 1874 Stockholm (Suède) Décès 9 mars 1954 Gostad (Suède) Nationalité …   Wikipédia en Français

  • Vagn Walfrid Ekman — Infobox Scientist name =Vagn Walfrid Ekman box width = image width =150px caption =Vagn Walfrid Ekman birth date = May 3, 1874 birth place = Stockholm death date = March 9, 1954 death place = Gostad residence = citizenship = nationality = Swedish …   Wikipedia

  • Vagn Walfrid Ekman — noun Swedish oceanographer who recognized the role of the Coriolis effect on ocean currents (1874 1954) • Syn: ↑Ekman • Instance Hypernyms: ↑oceanographer …   Useful english dictionary

  • Ekman-Spirale — Darstellung der Ekman Spirale (Nordhalbkugel, vereinfacht). 1:Wind 2:durch den Wind bestimmte Strömungsrichtung 3:Tatsächliche Strömungsrichtung 4: Coriolis Effekt Die Korkenzieherströmung, auch Ekman Spirale (nach Vagn Walfrid Ekman), tritt… …   Deutsch Wikipedia

  • Ekman-Tiefe — Darstellung der Ekman Spirale (Nordhalbkugel, vereinfacht). 1:Wind 2:durch den Wind bestimmte Strömungsrichtung 3:Tatsächliche Strömungsrichtung 4: Coriolis Effekt Die Korkenzieherströmung, auch Ekman Spirale (nach Vagn Walfrid Ekman), tritt… …   Deutsch Wikipedia

  • Ekman Spirale — Darstellung der Ekman Spirale (Nordhalbkugel, vereinfacht). 1:Wind 2:durch den Wind bestimmte Strömungsrichtung 3:Tatsächliche Strömungsrichtung 4: Coriolis Effekt Die Korkenzieherströmung, auch Ekman Spirale (nach Vagn Walfrid Ekman), tritt… …   Deutsch Wikipedia

  • Ekman Tiefe — Darstellung der Ekman Spirale (Nordhalbkugel, vereinfacht). 1:Wind 2:durch den Wind bestimmte Strömungsrichtung 3:Tatsächliche Strömungsrichtung 4: Coriolis Effekt Die Korkenzieherströmung, auch Ekman Spirale (nach Vagn Walfrid Ekman), tritt… …   Deutsch Wikipedia

  • Ekman — can refer to *Carl Gustaf Ekman, (1872 – 1945) a Swedish politician *Erik Leonard Ekman, (1883 1931) a Swedish botanist *Gösta Ekman (junior), (1939 ) a Swedish actor *Gösta Ekman (senior), (1890 1938) a Swedish actor *Hasse Ekman, (1915 – 2004)… …   Wikipedia

  • Ekman — ist der Familienname folgender Personen: Carl Gustaf Ekman (1872–1945), schwedischer Politiker und Premierminister Erik Leonard Ekman (1883–1931), schwedischer Botaniker Eugen Ekman (* 1937), finnischer Kunstturner Gösta Ekman (1890–1938),… …   Deutsch Wikipedia

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