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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No pages on the Ekjan Wikipedia link to this file. This average is Ekman transport. If this file is freely licensed, but otherwise unsuitable for Commons e.
The depth to which the Ekman spiral penetrates is determined by how far turbulent mixing can penetrate over the course of a pendulum day. Views Read Edit View history. The effect is a consequence of the Coriolis effect which subjects moving objects to an apparent force to the right dde their direction of motion in the northern hemisphere and to the left in the Southern Hemisphere.
From Wikipedia, the free encyclopedia. As a work of the U.
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. Moving files to Commons for details. If the file lacks a description you can check edits the uploader made just after uploading this file with this tool.
Wind-induced water movements in a Benguela kelp bed. This image is a work of a sailor or employee of the U.
File File history File usage No higher resolution available. Skip to main content. But he did have lots of time to espial observations of the environment. This media file is either in the public domain or published under a free licenseand contains no inbound file links.
Any user may perform this transfer; refer to Wikipedia: Surface winds in the Northern Hemisphere tend to blow to the left of winds aloft. PD Public domain false false. This file is a candidate to be copied to Wikimedia Commons.
Views Read Edit View history.
He thought that trapped in sea ice, which moves with ocean currents, he would get to the North Pole eventually. Thus, when a persistent wind blows over an extended area of the ocean surface in the northern hemisphere, it causes a surface current which accelerates in that direction, which then experiences a Coriolis force and acceleration to the espirak of the wind: The Ekman spiral and Ekman esliral are named for Swedish scientist V.
It derives its name from the Swedish oceanographer Vagn Walfrid Ekman. This surface current drags on the water layer below it, applying a force in its own direction of motion to that layer, repeating the process whereby that layer eventually becomes a steady current even further to the right of the wind, and so on for deeper layers of water, resulting in a continuous rotation or spiraling of current direction with changing depth.
As wind blows across the ocean, it moves water because of friction at the ocean surface. Archived from the original on Please verify that this file is suitable for Commons before transferring it. The net effect of the rotating water B is movement at right angle to the wind direction. As the flow is now somewhat right of the wind, the Coriolis force perpendicular to the flow’s motion is now partly directed against the wind. He did this on purpose.
The first documented observations of an oceanic Ekman spiral were made in the Arctic Ocean from a drifting ice floe in This page was last edited on 25 Augustat It was moving consistently to the right of the wind direction. File mover What files should be renamed? Navytaken or made as part of that person’s official duties. The average direction of all this turning water is about a right angle from the wind direction.