Рис. spirale f d ́Ekman s espiral f de Ekman g Ekman-Spirale f El Niño; southern oscillation The abnormal warming of ocean water off the west coast of. Vagn Walfrid Ekman Category:Ekman spiral cawiki Espiral d’Ekman; dewiki Korkenzieherströmung; enwiki Ekman spiral; eswiki Espiral de Ekman; etwiki. elbow EHT~; – rectffier u TV válvula rectificadora de MAT/; – supply n rv spiral n OCEAN espiral de Ekman m elaeolite n MINERAL eleolita / nefelma.
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In other projects Wikimedia Commons.
Pages fspiral other projects are not listed. This file was suggested for transfer by a bot User: If this media file is useful, then it should be transferred to the Wikimedia Commons. Summary [ edit ] http: The speed and direction of the moving water changes with depth.
Wind-induced water movements in a Benguela kelp bed. It was moving consistently to the right of the wind direction.
This file is a candidate to be copied to Wikimedia Commons. As a work of the U. The first documented observations of an oceanic Ekman spiral were made in the Arctic Ocean from a drifting ice floe in Eventually, the current will reach a top speed when the force of the wind, of the Coriolis effect, and the resistant drag of the subsurface water balance, and the current will flow at a constant speed and direction as long as the wind persists.
If this file is freely licensed, xe otherwise unsuitable for Commons e. As depth increases, the force transmitted from the driving wind declines and thus the speed of the resultant steady current decreases, hence the tapered spiral representation in the accompanying diagram. Walfrid Ekman who first described the spiral in Surface winds in the Northern Hemisphere tend to blow to the espirsl of winds aloft.
An explorer from Norway named Fridtjof Nansen froze his espirap into the Arctic sea ice in One of his observations was that the ice was not moving in the same direction as the wind. The net effect of the rotating water B is movement at right angle to the wind direction. The force from above is in red beginning with the wind blowing over the water surfacethe Coriolis force which is shown at right angles to the force from above when it should in fact be at right angles to the actual water flow is in dark yellow, and the net resultant water movement esprial in pink, which then becomes the force from above for the layer below it, accounting for the gradual clockwise spiral motion as you move down.
Views Read Edit View history. This makes a spiral of moving water to meters to ft deep called an Ekman spiral. Journal of Geophysical Research. Any user may perform this transfer; refer to Wikipedia: Navytaken or made as part of that person’s official duties.
From Wikipedia, the free encyclopedia. This media file is either in the public domain or published under a free licenseand contains no inbound file espirzl.
For three years, Nansen and his ship drifted through the Arctic. This image is a work of a sailor or employee of the U.
This is due both to the fact that the turbulent mixing in the surface layer of the ocean has a strong diurnal cycle and to the fact that surface waves can destabilize the Ekman spiral.
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Ekman spiral – Wikidata
Retrieved from ” https: The deflection of surface currents was first noticed by the Norwegian oceanographer Fridtjof Nansen during the Fram expedition — and the effect was first physically explained by Vagn Walfrid Ekman. But he did have lots of time to make observations of the environment.
Wikimedia Commons has esiral related to Ekman spiral. This page was last edited on 25 Augustat Please verify that this file is suitable for Commons before transferring it.