Ekman layer
the thin horizontal layer of water riding on top of the ocean that is affected by wind

Dictionary of ichthyology. 2009.

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  • Ekman layer — In standard boundary layer theory, the effects of viscous diffusion are usually balanced by convective inertia. When a fluid rotates, however, the dominant balance may instead be struck between diffusion effects and the Coriolis force. Under… …   Wikipedia

  • Ekman layer — The layer of transition between the surface boundary layer, where shearing stress is constant, and the free atmosphere, where the atmosphere is treated as an ideal fluid in approximate geostrophic equilibrium. Also called a spiral layer …   Aviation dictionary

  • 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-Transport — Der Ekman Transport ist die über eine turbulente Grenzschicht der Atmosphäre und des Ozeans auf der rotierenden Erde vertikal integrierte Strömung. Er ist benannt nach dem schwedischen Ozeanographen Vagn Walfrid Ekman, der die erste realistische… …   Deutsch Wikipedia

  • Ekman spiral — The Ekman spiral refers to a structure of currents or winds near a horizontal boundary in which the flow direction rotates as one moves away from the boundary. It derives its name from the Swedish oceanographer Vagn Ekman. The deflection of… …   Wikipedia

  • Ekman, V Walfrid — ▪ Swedish scientist born May 3, 1874, Stockholm died March 9, 1954, Gostad, near Stockaryd, Swed.  Swedish physical oceanographer best known for his studies of the dynamics of ocean currents. The common oceanographic terms Ekman layer, denoting… …   Universalium

  • Ekman number — The Ekman number, named for V. Walfrid Ekman, is a dimensionless number used in describing geophysical phenomena in the oceans and atmosphere. It characterises the ratio of viscous forces in a fluid to the fictitious forces arising from planetary …   Wikipedia

  • Ekman transport — Ekman transport, named for Vagn Walfrid Ekman, is the natural process by which wind causes movement of water near the ocean surface. Each layer of water in the ocean drags with it the layer beneath. Thus the movement of each layer of water is… …   Wikipedia

  • 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 …   Scientists

  • Planetary boundary layer — Depiction of where the planetary boundary layer lies on a sunny day The planetary boundary layer (PBL), also known as the atmospheric boundary layer (ABL), is the lowest part of the atmosphere and its behavior is directly influenced by its… …   Wikipedia

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