Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation

HE Qi; WEI Zexun; WANG Yonggang

Article Contents

Article Navigation > Haiyang Xuebao > 2012 > 34(1): 17-28

HE Qi, WEI Zexun, WANG Yonggang. Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation[J]. Haiyang Xuebao, 2012, 34(1): 17-28.

Citation:

HE Qi, WEI Zexun, WANG Yonggang. Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation[J]. Haiyang Xuebao, 2012, 34(1): 17-28.

HE Qi, WEI Zexun, WANG Yonggang. Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation[J]. Haiyang Xuebao, 2012, 34(1): 17-28.

Citation:

HE Qi, WEI Zexun, WANG Yonggang. Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation[J]. Haiyang Xuebao, 2012, 34(1): 17-28.

PDF( 1605 KB)

Study on the sea currents in the northern shelf and slope of the South China Sea based on the observation

1.
The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;China National Offshore Oil Corporation, Beijing 100016, China
2.
The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2010-05-18
Rev Recd Date: 2011-04-18

Abstract

Abstract

Based on ADCP data obtained from the northern shelf and slope of the South China Sea from 2006 to 2009, several analysis methods, including FFT Power spectral analysis, harmonic analysis of tidal current, decomposition of residential current and so on, have been applied to calculate the vertical structure, seasonal variation and spacial distribution of the velocity. The study on the sea currents refers to the south china sea warm current and Northern slope current spatiotemporal distribution. The results show the main tidal current pattern is irregular diurnal tide with regular diurnal tide in mid-deep layer of deep water area. Tidal current shows three-layers vertical structure. The ellipticity of current ellipse, such as O₁,K₁,M₂,S₂, are clockwise rotation and NW-SE reversing current in the deep sea station. Energy analysis shows that the current of upper and bottom layer are controlled by tidal current except for middle layer.The results based on observation approve western strong current exists and the vertical current structure has seasonal variation. It is not found the south china sea warm current in 200 m depth, however the winter upper layer current above 30 meters flows to NE. In winter the influence of the upper current is caused by the South China Sea warm current, in summer circulation towards southwest is prevailing and has strong current velocity. It is maybe results from the axis of the south china sea warm current is near to shelf in summer and far in winter.
- shelf and slope of the South China Sea,
- current,
- vertical structure,
- seasonal variation

FullText(HTML)

References(36)

References

DALE W L. Wind and drift currents in the South China Sea[J]. The Malasyian Journal of Tropical Geography,1956, 8:1-31.

WYRTKI K. Physical oceanography of the SouthEast Asian water scientific results of marine investigation of the South China Sea and Gulf of Thailand[M]. CA, Scripps Institute of Oceanography,1961.Naga Report.2.

南海水产研究所. 南海北部底拖网鱼类资源调查报告(海南岛以东),第1册[R].1966:5-67.

中国科学院南海海洋研究所. 南海综合调查报告 1979-1982南海北部多学科研究报告,第二卷[M]. 北京:科技出版社,1985:432.

国家海洋局南海分局. 南海北部陆架临近水域十年水文断面调查报告[M].北京:海洋出版社,1990.

FANG G,FANG W,FANG Y,et al.A survey of studies on the South China Sea upper ocean circulation[J]. Acta Oceanogr Taiwan, 1998, 37:1-16.

METZGER E J, HULBURT H E. Coupled dynamics of the South China Sea, the Sulu Sea, and the Pacific Ocean[J]. Journal of Geophysical Research, 1996, 101(C5):12331-12352.

李立,苏纪兰. 南海的黑潮分离流环[J].热带海洋,1997,16(2):42-57.

李立. 南海中尺度海洋现象研究概述[J]. 台湾海峡,2002,21(2):265-274.

苏纪兰. 中国近海环流动力机制研究[J]. 海洋学报,2001,23(3):1-15.

QU Tangdong. Notes and correspondence upperlayer circulation in the South China Sea[J]. Journal of Physical Oceanography,1999,30:1450-1460.

SHAW P T,CHAO S Y,LIU K K,et al. Winter upwelling off Luzon in the northern South China Sea[J]. Journal of Geophysical Research, 1996, 101(C7): 16435-16448.

袁耀初,赵进平,王惠群,等. 南海东北部450 m以浅水层与深层海流观测结果及其谱分析[J]. 中国科学:D辑,2002,32(2):163-177.

袁耀初,王惠群,楼如云,等. 2002年春季吕宋海峡海流观测及其谱分析[J]. 海洋学报, 2005,27(4):1-9.

管秉贤,袁耀初. 中国近海及其附近海域若干涡旋研究综述:Ⅰ. 南海和台湾以东海域[J]. 海洋学报,2006,28(3):1-16.

刘勇刚,袁耀初,苏纪兰,等. 1998年夏季南海环流[J]. 科学通报,2000,45 (12):1252-1259.

管秉贤. 中国东南近海冬季逆风海流[M]. 青岛:中国海洋大学出版社, 2002.

QU T,LINDSTROM E J. A climatological interpretation of the circulation in the western South Pacific[J].J Phys Oceanogr, 2002, 32:2492-2508.

QU T,LINDSTROM E J. Northward intrusion of Antarctic Intermediate water in the western Pacific[J].J Phys Oceanogr, 2004, 34:2104-2118.

魏泽勋,方国洪,崔秉昊,等. 南海海面高度和输运流函数[J]. 中国科学:D辑,2002,32(12):987-994.

方国洪,魏泽勋,黄企洲,等. 南海南部与外海间的体积和热、盐输运及其对印尼贯穿流的贡献[J]. 海洋与湖沼,2002,33(3):296-302.

薛惠洁,柴扉,许建平,等.南海海流数值计算及中尺度特征研究[G]// 中国海洋学文集13.北京:海洋出版社,2001:48-89

王东晓,周发琇,秦曾灏. 南海上层海洋环流两层半模式的数值模拟:Ⅰ. 闭边界海盆季节性环流[J]. 海洋学报,1996,18(5):30-40.

杜岩,王东晓,陈举,等.南海海洋动力过程观测与模拟研究进展[J].热带海洋学报, 2004, 23(6):82-92.

徐锡祯,丘章,陈惠昌. 南海水平环流的概述[C]//中国海洋湖沼学会水文气象学会学术会议论文集. 北京:科学出版社, 1982: 137-145.

FANG G, SUSANTO D, SOESILO I,et al, A note on the South China Sea shallow interocean circulation[J]. Adv Atmos Sci, 2005, 22: 946-954.

杜岩,齐义泉,陈举,等.东海定点连续观测站海流资料分析[J].海洋工程, 2003, 21(1):95-100.

苏京志,卢筠,侯一筠,等. 南海表层流场的卫星跟踪浮标观测结果分析[J]. 海洋与湖沼,2002,33(2):121-127.

许洪周,许金电,李立,等. 2001年冬春转换期间南海东北部水文和环流特征[J]. 海洋学报,2007,29(5):10-20.

于华明,鲍献文,朱学明,等. 夏季北黄海南部定点高分辨率实测海流分析[J].海洋学报,2008,30(4):12-20.

WANG Dongxiao, LIU Qinyu, HUANG Ruixin, et al. Interannual variability of the South China Sea throughflow inferred from wind data and an ocean data assimilation product[J]. Geophysical Research Letters, 2006, 33(14), L14605.

WANG Yonggang, FANG Guohong, WEI Zexun,et al.Interannual variation of the South China Sea circulation and its relation to El Niño, as seen from a variable grid global ocean model[J]. Journal of Geophysical Research, 2006, 111:C11S14.

张效谦,梁鑫峰,田纪伟. 南海北部450 m以浅水层内潮和近惯性运动研究[J]. 科学通报, 2005,50(18):2027-2031.

ATSUHIKO Isobe,TADAYA Namba. The Circulation in the Upper and Intermediate Layers of the South China Sea[J]. Journal of Oceanography, 2001, 57(1):93-104.

CHU P C ,EDMONS N L, FAN C. Dynamical mechanisms for the South China Sea seasonal circulation and thermohaline variabilities[J]. Journal of Physical Oceanography, 1999,29:2971-2989.

FANG G H, WEI Z X, CHOI B H, et al. Interbasin fresh water, heat and salt transport through the boundaries of the East and South China Seas from a variablegrid global ocean circulation model[J]. Science in China: Series D , 2003, 46(2):149-161.

Relative Articles

Supplements(0)

Cited By

Proportional views