Seasonal variation of the Cheju Warm Current in the Northern East China Sea

被引：10

作者：

Lie H.-J. ^{[1
]}

Cho C.-H. ^{[1
]}

Lee J.-H. ^{[1
]}

Lee S. ^{[1
]}

Tang Y. ^{[2
]}

机构：

[1] Physical Oceanography Division, Korea Ocean R. and D. Institute, Ansan 425-600

[2] Physical Oceanography Division, First Institute of Oceanography, State Oceanic Administration, Qindao 266003

来源：

Journal of Oceanography | 2000年 / 56卷 / 2期

关键词：

Cheju Warm Current; Cheju-do; CTD data; East China Sea; Satellite-tracked drifters; Tsushima Warm Current;

D O I：

10.1023/A:1011139313988

中图分类号：

学科分类号：

摘要：

The Cheju Warm Current has been defined as a mean current that rounds Cheju-do clockwise, transporting warm and saline water to the western coastal area of Cheju-do and into the Cheju Strait in the northern East China Sea (Lie et al., 1998). Seasonal variation of the Cheju Warm Current and its relevant hydrographic structures were examined by analyzing CTD data and trajectories of satellite-tracked drifters. Analysis of a combined data set of CTD and drifters confirms the year-round existence of the Cheju Warm Current west of Cheju-do and in the Cheju Strait, with current speeds of 5 to 40 cm/s. Saline waters transported by the Cheju Warm Current are classified Cheju Warm Current water for water of salinity greater than 34.0 psu and modified Cheju Warm Current for water having salinity of 33.5-34.0 psu. In winter, Cheju Warm Current water appears in a relatively large area west of Cheju-do, bounded by a strong thermohaline front formed in a 'Γ' shape. In summer and autumn, the Cheju Warm Current water appears only in the lower layer, retreating to the western coastal area of Cheju-do in summer and to the eastern coastal area sometimes in autumn. The Cheju Warm Current is found to flow in the western channel of the Korea/Tsushima Strait after passing through the Cheju Strait, contributing significantly to the Tsushima Warm Current.

引用

页码：197 / 211

页数：14

共 25 条

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