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| Titel |
Role of the spatial resolution on the oceanic subduction rate |
| VerfasserIn |
G. Caniaux, M. Lévy, K. Takahashi |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250020612
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| Zusammenfassung |
| Subduction is the process by which water masses irreversibly escape
from the mixed layer in which they were in contact with the atmosphere,
into the main thermocline. Diagnosing the annual subduction rates
plays a key role in numerical models because the rate of deep water
formation largely depends of the properties and realism of the simulated
top mixed layers. In this study, annual subduction rates are evaluated
with the kinematically defined instantaneous rate method of Valdivieso
and al. (2004) and applied to academic simulations of the North Atlantic
basin which only differ by their spatial resolution (respectively 1°,
1/3°, 1/9°, 1/27° and 1/54°). The comparison of the simulations
allows to evaluate the role of the resolution on subduction mechanisms. A
second kind of comparison is provided with simulations obtained from
the degradations of the stronger resolution simulation (1/54°).
This second kind of comparisons allows to directly evaluate the role
of the resolution on subduction rate diagnostics. |
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