The western South China Sea currents from measurements by Argo profiling floats during October to December 2007 |
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Authors: | Hui Zhou Dongliang Yuan Ruixiang Li Lei He |
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Institution: | (1) Institute of Oceanography, National Taiwan University, Taipei, Taiwan, Republic of China |
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Abstract: | The three dimensional structure of the western boundary current east of the Vietnam coast was determined from measurements
by Argo profiling floats which deployed near the east of the Vietnam Coast in October 2007. The trajectories of the Argo floats
provided robust evidence that there does exist southward flowing current along the Vietnam coast. The southward current begins
at about 15°N, 111°E, flowing along the 1 000 m isobath and extending to 5°N south. The estimated surface and parking depth
velocities obtained from the floats suggest that this southward current can extend to 1 000 m depth. The mean surface velocity
of the western boundary current is about 49 cm/s, with the maximum speed exceeding 100 cm/s occurring at 11.6°N, 109.5°E in
the direction of 245°. The mean parking depth (1 000 m) velocity is 12–16 cm/s with the maximum speed of 36 cm/s occurring
at 12.1°N, 109.7°E in the direction of 239°. |
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