Die Gezeiten des Meeres und die Rotation der Erde |
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| Authors: | Peter Brosche Jürgen Sündermann |
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| Institution: | (1) Astronomisches Recheninstitut, Mönchhofstr. 12-14, 69 Heidelberg;(2) Institut für Meereskunde der Universität Hamburg, Heimhuder Str. 71, 2 Hamburg 13 |
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| Abstract: | Summary The problem of tidal friction as a cause of the secular deceleration of earth rotation was higherto approached on the basis of estimating the kinetic energy dissipated by bottom friction. It would appear however, that in any analysis of the influence of oceanic tides on earth rotation the varying directions of the torques due to tidal streams and acting on the solid earth, must be taken into account. As examples for this, the torques due to tidal friction are calculated for the North Sea and for the 10°-world ocean, applying hydrodynamical-numerical methods. The results show that earth rotation is not retarded at all points of the world ocean, but that tidal areas exist exerting either decelerating or accelerating forces. |
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