ADCP观测得到的2008年4月吕宋海峡流速剖面结构

杨成浩; 廖光洪; 袁耀初; 陈洪; 金子新; 江田憲章; 谷口直和; 南馆正憲

doi:10.3969/j.issn.0253-4193.2013.03.001

ADCP观测得到的2008年4月吕宋海峡流速剖面结构

doi: 10.3969/j.issn.0253-4193.2013.03.001

1.
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
2.
广岛大学工学部环境科学系, 日本东广岛 739-8527

基金项目: 国家重点基础研究发展计划(2007CB816003;2011CB403503);科技部国际合作项目(2006DFB21630);国家自然科学基金(41176020;40520140073);国家海洋局第二海洋所基本科研业务费专项资助(JT1006)。

计量
- 文章访问数: 1778
- HTML全文浏览量: 3
- PDF下载量: 1567
- 被引次数: 0
出版历程
- 收稿日期: 2011-10-28
- 修回日期: 2012-09-06

Structures of velocity profile in the Luzon Strait measured by LADCP in April 2008

1.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan

摘要

摘要: 基于2008年4月22-26日吕宋海峡调查航次的下放式声学多普勒流速剖面仪(LADCP)和船载ADCP(SADCP)等观测资料,并采用潮波模式模拟结果去除潮流对观测资料的影响,观测结果表明:调查期间黑潮入侵南海的位置与1992年春季比较接近,其分支位于调查海区中部C2、C7、C8和C9站,表层黑潮在C8站分离为两支,分别流向C9和C2站,C9 站北向流明显比C8站减弱。在C2站,黑潮分支位于400 m层以浅,其最大西向流速为77 cm/s,而在C7、C8和C9站黑潮分支位于500 m层以浅,黑潮在入侵南海的过程中其核心深度逐渐变浅。上层黑潮明显作反气旋弯曲。本调查航次的观测结果在定性上支持吕宋海峡水交换有"三明治"垂直结构的特性。
- 吕宋海峡 /
- 流速剖面结构 /
- 2008年4月航次 /
- LADCP
Abstract: On the basis of the cruising data of Lowered Acoustic Doppler Current Profilers (LADCP) and ship-mounted ADCP (SADCP) and so forth, during the cruise of Luzon Strait in April 2008, velocity profile is figured out using the LDEO LADCP processing software. We take use of the simulating results of TPXO7.2 (a TOPEX/POSEIDON global tidal model) to remove the tidal current speed from the measured value. The following main results have been obtained: the core of intruding Kuroshio flows through station C2, C7, C8 and C9, respectively, and the positions of core agree basically with those in spring 1992. At station C2 the Kuroshio is located in the upper layer from sea surface to 400 m with the maximum westward speed 77 cm/s, and its speed decreases with the increase of water depths. At station C7, C8, C9, the Kuroshio is located in the layer from surface to 500 m, depth of the Kuroshio becomes shallow gradually when it intrudes into the South China Sea. The observation results may be a support to the sandwiched vertical structure of Luzon Strait transport.
- the Luzon Strait /
- structure of velocity profile /
- April 2008, LADCP /

HTML全文

参考文献(26)

熊学军,郭炳火,胡筱敏. LADCP观测和资料后处理的关键技术[J].海洋技术,2003,22(4):32-36.

Firing E,Gordon R. Deep ocean acoustic Doppler current profiling//Proceedings of the IEEE Fourth Working Conference on Current Measurements, 3-5 April, Clinton, Maryland, 1990: 192-201.

Fischer J, Visbeck M. Deep velocity profiling with self-contained ADCPs[J]. J Atmos Oceanic Technol, 1993, 10: 764-773.

Firing E. Lowered ADCP developments and use in WOCE[R]. WOCE Newsletter, No.30, WOCE International Project Office, Southampton, United Kingdom, 1998: 10-13.

Beal L, Bryden H. Observations of an Agulhas undercurrent[J]. Deep-Sea Res, 1997, 44: 1715-1724.

Firing E, Wijffels S E,Hacker P. Equatorial subthermocline currents across the Pacific[J]. J Geophys Res,1998, 103: 21413-21423, doi: 10.1029/98JC01944.

Stramma L, Fischer J,Schott F. The flow field off southwest India at 8°N during the southwest monsoon of August 1993[J]. J Mar Res,1996, 54: 55-72.

Wijffels S E, Hall M M, Joyce T,et al. Firing. Multiple deep gyres of the western North Pacific: A WOCE section along 149°E[J]. J Geophys Res,1998, 103: 12985-13009, doi: 10.1029/98JC01016.

Wilson W, Johns W E. Velocity structure and transport in the Windward Island Passages[J]. Deep-Sea Res, 1997,44:487-520.

郭心顺,杨庆轩,康建军,等. LADCP数据处理方法的探讨及其对应软件包的使用[J].海洋技术,2006,25(4):1-5.

谢玲玲,熊学军,杨庆轩,等. LADCP配置文件和数据质量控制的参数设定[J].海洋技术,2009,28(1):19-23.

汪德华,吴建波,冯雷,等. 一种用于下放式ADCP的TVC增益补偿控制策略[J].海洋技术,2009,28(2):51-54.

Qu Tangdong. Evidence for water exchange between the South China Sea and the Pacific Ocean through the Luzon Strait[J].Acta Oceanologica Sinica, 2002, 21(2):175-185.

Yuan Dongliang. A numerical study of the South China Sea deep circulation and its relation to the Luzon Strait transport[J].Acta Oceanologica Sinica, 2002, 21(2):187-202.

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:地球科学,2002,32(2):163-176.

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.

袁耀初,廖光洪,王惠群,等. 采用观测与卫星资料得到的地转流和谱分析研究2002年春季吕宋海峡海流的变化[J]. 中国科学D辑:地球科学,2009,39(3):370-381.

Tian Jiwei, Yang Qingxuan,Liang Xinfeng,et al. Observation of Luzon Strait transport[J].Geophys Res Lett, 2006, 33: L19607, doi: 10.1029/2006GL026272.

Visbeck M. Deep velocity profiling using Lowered Acoustic Doppler Current Profilers: Bottom track and inverse solutions[J]. J Atmos Oceanic Technol, 2002, 19: 794-807.

Komaki K, Kawabe M. Correction method for full-depth current velocity with lowered acoustic Doppler current profiler (LADCP)[J]. Journal of Oceanography, 2007, 63: 995-1007.

Pawlowicz R, Beardsley B, Lentz S. Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE[J]. Computers & Geosciences, 2002, 28: 929-937.

Egbert G D. Tidal data inversion: Interpolation and inference[J]. Progress in Oceanography, 1997, 40: 81-108.

Egbert G D, Erofeeva S. Efficient Inverse Modeling of Barotropic Ocean Tides[J]. Journal of Atmospheric and Oceanic Technology, 2002, 19(2):183-204.

Yuan Yaochu, Liao Guanghong, Yang Chenghao. A diagnostic calculation of the circulation in the upper and middle layers of the Luzon Strait and the northern South China Sea during March 1992[J]. Dynamics of Atmospheres and Oceans, 2009, 47: 86-113.

Liao Guanghong, Yuan Yaochu, Arata K, et al. Analysis of internal tidal characteristics in the layer above 450 m from acoustic Doppler current profiler observations in the Luzon Strait[J]. Sci China Earth Sci, 2010, doi: 10.1007/s11430-010-4102-0

Yuan Yaochu, Liao Guanghong, Guan Weibing,et al.The circulation in the upper and middle layers of the Luzon Strait during spring 2002[J]. J Geophys Res,2008, 113: C06004, doi: 10.1029/2007JC004546.

施引文献

资源附件(0)

访问统计