热带海洋学报 ›› 2011, Vol. 30 ›› Issue (1): 11-19.doi: 10.11978/j.issn.1009-5470.2011.01.011cstr: 32234.14.j.issn.1009-5470.2011.01.011

• 海洋水文学 • 上一篇    下一篇

吕宋海峡附近海域水团分布及季节变化特征

刘增宏1, 2, 许建平1, 2, 孙朝辉1, 朱伯康1   

  1. 1. 国家海洋局第二海洋研究所, 浙江 杭州 310012; 2. 国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室, 浙江 杭州 310012
  • 收稿日期:2009-06-24 修回日期:2009-09-15 出版日期:2011-03-17 发布日期:2011-03-16
  • 作者简介:刘增宏(1977—), 男, 江苏省无锡市人, 助理研究员, 主要从事海洋观测分析研究。E-mail: davids_liu@263.net
  • 基金资助:

    国家海洋局公益性行业科研专项(200706022); 国家海洋局第二海洋研究所基本科研业务费专项(JT0804)

The characteristics of water mass distribution and its seasonal variation near the Luzon Strait

LIU Zeng-hong1,2, XU Jian-ping1,2, SUN Chao-hui1, ZHU Bo-kang1   

  1. 1. Second Institute of Oceanography, SOA, Hangzhou 310012, China; 2. State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, SOA, Hangzhou 310012, China
  • Received:2009-06-24 Revised:2009-09-15 Online:2011-03-17 Published:2011-03-16
  • About author:刘增宏(1977—), 男, 江苏省无锡市人, 助理研究员, 主要从事海洋观测分析研究。E-mail: davids_liu@263.net
  • Supported by:

    国家海洋局公益性行业科研专项(200706022); 国家海洋局第二海洋研究所基本科研业务费专项(JT0804)

摘要:

利用2003年2月至2009年4月期间在吕宋海峡附近海域由Argo剖面浮标观测的温、盐度资料, 对该海域的水团分布及季节变化特征进行了探讨。结果表明, 在120.5?—122.75?E、19?—23?N范围内, 水团特征介于南海水和北太平洋水之间, 而19?N以南区域的水交换并不显著。北太平洋热带水(NPTW)和北太平洋中层水(NPIW)通过吕宋海峡入侵南海的趋势在夏季较弱。秋季, NPTW入侵南海的趋势增强, 而到了冬季, 受东北季风控制, 北太平洋水的入侵程度最强, 然而并无NPIW进入南海的迹象。值得指出的是, 整年没有发现明显的NPIW进入南海, 而南海中层水可以通过海峡流入太平洋, 其强度在秋、冬季节达到最大。

关键词: 水团, Argo剖面浮标, 吕宋海峡, 南海, 北太平洋

Abstract:

The Luzon Strait is located between Taiwan and Luzon islands, connecting the Philippine Sea and the South China Sea. The characteristics of water mass distribution and its seasonal variation in this region were discussed using the Argo temperature and salinity data from February 2003 to April 2009. The analysis suggested that in the area of 120.5º?122.75ºE and 19º?23ºN the water mass has the properties between the South China Sea Water and the North Pacific Water; in the area south of 19ºN, the water exchange is not significant. The intrusion of the North Pacific Tropical Water (NPTW) and the North Pacific Intermediate Water (NPIW) into the South China Sea is relatively weak in summer. The intrusion of the NPTW is strengthened in fall and winter. When the northeasterly monsoon becomes fully developed, the intrusion reaches its most. However, there is no evidence of the NPIW water flowing into the South China Sea. It should be pointed that there is no indication that the NPIW enters the South China Sea in any seasons, while the intermediate water from the South China Sea can flow into the Pacific through the Luzon Strait, reaching its maximum strength in fall and winter.

Key words: water mass, Argo profiling float, Luzon Strait, South China Sea