基于船载ADCP观测对罗源湾湾口断面潮流及余流的分析

姚志刚; 鲍献文; 李娜; 李希彬; 宋军; 万凯

基于船载ADCP观测对罗源湾湾口断面潮流及余流的分析

1.
中国海洋大学海洋环境学院, 山东青岛 266100;中国海洋大学物理海洋教育部重点实验室, 山东青岛 266100
2.
中国海洋大学海洋环境学院, 山东青岛 266100
3.
国家海洋局天津海洋环境监测中心站, 天津 300457
4.
国家海洋信息中心, 天津 300171

基金项目: 我国近海海洋综合调查与评价专项(908-01-ST02)。

计量
- 文章访问数: 1475
- HTML全文浏览量: 15
- PDF下载量: 1109
- 被引次数: 0
出版历程
- 收稿日期: 2012-01-03
- 修回日期: 2012-03-21

Analysis of tidal and residual currents across Kemen Channel based on shipboard ADCP measurements

1.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, 266100, China;Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China
2.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, 266100, China
3.
Tianjin Marine Environmental Monitoring Central Station, State Oceanic Adimanistration, Tianjin 300457, China
4.
National Marine Data and Information Service, State Oceanic Adimanistration, Tianjin, 300171, China

摘要

摘要: 基于对罗源湾可门水道的25 h连续走航ADCP观测,成功构建了沿走航断面共12个站位的连续海流时间序列,并对这些站位的潮流、余流以及潮通量等进行了分析。结果表明可门水道内的潮流为正规半日潮流,驻波性质明显,涨潮首先出现在水道中下层而退潮则首先发生在水道上层。水道内的潮流为往复流,水道南部M₂分潮流流速较大,并且其倾角自北向南逐渐增加。此外,水道两端的浅水区域内浅水分潮M₄振幅较显著。可门水道内余流呈现出两层结构,20 m以浅余流沿东北向流出海湾,并且出流的核心位置偏南,而20 m以深的余流沿西南向流入湾内,入流的流核位于偏北的近底层区域。对潮通量的积分计算表明通过可门水道进入罗源湾的潮通量约为4.81×10⁸ m³。
- 走航ADCP /
- 潮流 /
- 余流 /
- 潮通量
Abstract: Based on 25 h shipboard ADCP measurements across Kemen Channel,time series of tidal currents over 12 sites,which distribute evenly along the transect,were constructed to improve our understanding of tidal characteristics and residuals in this region.The tidal currents in Kemen Channel were identified as the regular semidiurnal and reversing tidal flows,with its behavior more like standing waves.Moreover,the flood currents in the lower layers were found to be ahead of that in the upper layers and vice versa for ebb tides.The major of tidal ellipse for M₂ constituent was found to be larger close to the southern side of channel,with its incline also increasing toward the south.The signs of M₄ constituent are also found mainly nearby the end points of this transect,indicating the importance of nonlinearity in tidal dynamics due to the shallower topography.A two-layer structure was found for the residual currents in Kemen Channel,flowing northeastwardly out of the bay in upper 20 m with a further south core position and southwestwardly into the bay in the lowers,with a further north core position.Besides approximate 4.81×10⁸ m³ water exchanges were determined between the Luoyuan Bay and outer seas by the calculation of tidal transports through Kemen Channel.
- shipboard ADCP /
- tidal currents /
- residuals /
- tidal transport

HTML全文

参考文献(23)

中国海湾志编纂委员会.中国海湾志:第七分册[M].北京:海洋出版社, 1994:49-92.

王爱军,叶翔,陈坚.台风作用下的港湾型潮滩沉积过程——以2008年"凤凰"台风对福建省罗源湾的影响为例[J].海洋学报,2009,31(6):77-86.

傅子琅,胡建宇.罗源湾的潮流和余流及水温的分布特征[J].厦门大学学报,1989, 28(S1):28-33.

胡建宇.罗源湾的潮流, 余流特征[J].海洋环境科学,1996, 15(4):12-16.

胡建宇.罗源湾的主要水文特征及其与水产养殖的关系[J].海洋科学,1998,22(6):49-51.

孙长青,郭耀同,赵可胜.罗源湾潮流数值计算[J].海洋科学,2005, 29(9):19-22.

胡建宇.罗源湾海水与外海水的交换研究[J].海洋环境科学,1998, 17(3):51-54.

杜伊,周良明,郭佩芳,等.罗源湾海水交换三维数值模拟[J].海洋湖沼通报,2007(1):7-13.

马宇.新型测流仪器——SLC9-2型直读式海流计[J].海洋信息,1991(2):21-22.

张正惕,吴辰,霍艳虹.SLC9-2型直读式海流计的工作原理及维护使用[J].海洋测绘,1999(1):46-48.

杨锦坤,相文玺,韦广昊,等.走航ADCP数据处理与质量控制方法研究[J].海洋通报,2009, 28(6):101-105.

吕新刚,赵昌,夏长水,等.胶州湾水交换及湾口潮余流特征的数值研究[J].海洋学报,2010,32(2):20-30.

汪亚平,高抒.用ADCP进行走航式悬沙浓度测量的初步研究[J].海洋与湖沼,1999, 30(6):758-763.

TAKIKAWA T, YOON J H, CHO K D.The tsushima warm current through tsushima straits estimated from ferryboat ADCP data[J]. Journal of Physical Oceanography,2005, 35(6):1154-1168.

VENNELL R.ADCP measurements of momentum balance and dynamic topography in a constricted tidal channel[J].Journal of Physical Oceanography,2006, 36(2):177-188.

WANG Y H, JAN S, WANG D P.Transports and tidal current estimates in the Taiwan Strait from shipboard ADCP observations (1999-2001)[J].Estuarine, Coastal and Shelf Science,2003, 57(1/2):193-199.

INSTRUMENTS R D.ADCP coordinate transformation:Formulas and calculations[M].RDI Manual,1998.

GORDON R L, INSTRUMENTS R D.Principles of Operation a Practical Primer[M].RD Instruments, San Diego,1996.

VAZQUEZ-PERALTA H J, GOMEZ-VALDES J, ORTIZ M, et al.Detiding shipboard ADCP data in Eastern Boundary Current[J]. Journal of Atmospheric and Oceanic Technology,2011,28(1):94-103.

CARRILLO L, SOUZA A J, HILL A E, et al.Detiding ADCP data in a highly variable shelf sea:The Celtic Sea[J].Journal of Atmospheric and Oceanic Technology,2005, 22(1):84-97.

KO D S, PRELLER R H, JACOBS G A, et al.Transport reversals at Taiwan strait during October and November 1999[J].Journal of Geophysical Research,2003, 108(C11):3370.

INSTRUMENTS R D.Workhorse technical manual[M].RD Instruments, San Diego, CA,1998.

PAWLOWICZ R, BEARDSLEY B, LENTZ S.Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE[J]. Computers & Geosciences,2002, 28(8):929-937.

施引文献

资源附件(0)

访问统计