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| Titel |
The structure of the Persian Gulf outflow subjected to density variations |
| VerfasserIn |
A. A. Bidokhti, M. Ezam |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 5, no. 1 ; Nr. 5, no. 1 (2009-01-12), S.1-12 |
| Datensatznummer |
250002261
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| Publikation (Nr.) |
 copernicus.org/os-5-1-2009.pdf |
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| Zusammenfassung |
| Oceanographic data and a dynamic model are used to consider the structure of
Persian Gulf outflow. This outflow influences the physical properties of
Oman seawater which appear in the CTD profiles of the Oman Sea. The
observations show that thickness of the outflow, which is banked against the
Oman coasts due to the earth rotation, is about 200 m with tongues
extending east and north that may be due to the internal waves. A simple
dynamical model of the outflow based on potential vorticity conservation is
used to find the horizontal extension of the outflow from the coast. Typical
mass transport estimate by the outflow is about 0.4 Sv, which is larger than
those reported by others. This may be due to the fact the model is inviscid
but the outflow is influenced by the bottom friction. Variability of the
outflow structure may reflect the changing ecosystem of the Persian Gulf.
Any change of the outflow source, the Persian Gulf Water (PGW), say salinity
increase due to excessive evaporation (climate factor) or desalination
(anthropogenic factors) of the PGW may change the outflow structure and the
product waters in the Oman Sea. Hence, one can test different scenarios of
changing the outflow source, the Persian Gulf Water (PGW), say by salinity
increase due to excessive evaporation or desalination to estimate changes in
the outflow structure and the product waters in the Oman Sea. The results of
the model show that these can increase the outflow width and mass transport
substantially. |
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