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| Titel |
Impulse exchange at the surface of the ocean and the fractal dimension of drifter trajectories |
| VerfasserIn |
D. M. Summers |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 9, no. 1 ; Nr. 9, no. 1, S.11-23 |
| Datensatznummer |
250006595
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| Publikation (Nr.) |
 copernicus.org/npg-9-11-2002.pdf |
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| Zusammenfassung |
| An impulse-based
model is developed to represent a coupling between turbulent flow in the
atmosphere and turbulent flow in the ocean. In particular, it is argued
that the atmosphere flowing horizontally over the ocean surface generates
a velocity fluctuation field in the latter's near-surface flow. The
mechanism for this can be understood kinematically in terms of an exchange
of tangentially-oriented fluid impulse at the air-sea interface. We
represent this exchange numerically through the creation of Lagrangian
elements of impulse density. An indication of the efficacy of such a model
would lie in its ability to predict the observed fractal dimension of
lateral trajectories of submerged floats set adrift in the ocean. To this
end, we examine the geometry of lateral tracer-paths determined from the
present model. |
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