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| Titel |
Features of Red Sea Water Masses |
| VerfasserIn |
Aditya Kartadikaria, Ibrahim Hoteit |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250102197
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| Publikation (Nr.) |
 EGU/EGU2015-1503.pdf |
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| Zusammenfassung |
| Features of Red Sea water mass can be divided into three types but best to be grouped into
two different classes that are split at the potential density line Ïăθ=27.4. The surface water
(0-50 m) and the intermediate water (50-200 m) have nearly identical types of water mass.
They appear as a maxima salinity layer for the water mass that has Ïăθ > 26.0, and as a
minimum salinity layer for water mass that has Ïăθ < 26.0. These types of water
masses are strongly affected by mixing that is controlled by seasonal variability,
fresh water intrusion of the Gulf of Aden Intermediate Water (GAIW), and eddies
variability.
Two types of mixing; isopycnal and diapycnal mixing are part of important physical
phenomena that explain the change of water mass in the Red Sea. The isopycnal mixing
occurs at the neutral potential density line, connecting the Red Sea with its adjacent channel,
the Gulf of Aden. Diapycnal mixing is found as a dominant mixing mode in the surface of the
Red Sea Water and mainly due to energetic eddy activity. Density gradients, across which
diapycnal mixing occurs, in the Red Sea are mainly due to large variations in salinity. The
isolation of an extreme haline water mass below the thermocline contributes to the generation
of the latitudinal shift and low diapycnal mixing. This finding further explains the
difference of spatial kinetic mixing between the RSW and the Indian Ocean basin. |
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