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| Titel |
Topographic-Rossby Wave on the shelf of the northern South China Sea investigated by the numerical model |
| VerfasserIn |
Qiang Wang, Tao Xing, Weidong Zhou |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250052094
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| Zusammenfassung |
| The continental shelf in the northern South China Sea (SCS) is ENE-WSW oriented and 150-250 km wide, which is almost parallel to the coast. A three-dimensional model is used to investigate the characters of the topographic-rossby wave on the continental shelf of the northern SCS. On the shelf the topographic-rossby wave behaves barotropic and originates from the Dongsha island. The phase estimated from the modeling results is between -5.52cm/s and -3.23cm/s, which is consistent with the theory value. From the analyses of the barotropic vortex equations, the JEBAR (joint effect of baroclinicity and relief) effect ) is considerate as one decisive driving factor.The vertical profile of the velocity (vertical to the isobaths, m/s) which is averaged from north to south between 600m-isobaths and 1000m-isobaths . The positive (negative) value denotes the on-shore (off-shore) direction. From the left to the right and top to the below are Feb,Mar until Jan.Longitude-time distributions of the barotropic velocity (vertical to the isobaths, m/s) which is averaged from north to south between 600m-isobaths and 1000m-isobaths . The phase speed is between -5.52cm/s and -3.23cm/s. The positive (negative) value denotes the on-shore (off-shore) direction. |
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