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| Titel |
A dynamical systems approach to determine the Agulhas Leakage |
| VerfasserIn |
Kayo Ide, Henk A. Dijkstra |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250076668
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| Zusammenfassung |
| The Agulhas Current is the western boundary current of the Indian Ocean.
It displays remarkable behavior when approaching the tip of South Africa:
instead of turning westward into the South Atlantic, it retroflects back eastward
into the Southern Ocean. Through instabilities, large rings are shed by
the Agulhas Current that propagate into the Atlantic. The exchange of
heat and salt between the Indian and Atlantic Ocean established by the
highly variable Agulhas flow is referred to as the Agulhas Leakage. Several
methods exist to determine the Agulhas Leakage from model results (and from
observations) but quite some discrepancies exist on the resulting values.
Here we present a new Lagrangian approach to determine the Agulhas Leakage
based on dynamical systems theory. The method is applied to a hierarchy
of ocean models (and to observations) and results are compared to those
from other methods. |
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