海洋学研究 >

2020 , Vol. 38 >Issue 3: 10 - 20

DOI: https://doi.org/10.3969/j.issn.1001-909X.2020.03.002

研究论文

桑沟湾邻近海域岬角潮余流涡对及其产生机理

  • 周炜 ,
  • 宣基亮 ,
  • 黄大吉
展开
  • 1.卫星海洋环境动力学国家重点实验室,浙江 杭州 310012;
    2.自然资源部 第二海洋研究所,浙江 杭州 310012;
    3.自然资源部 第四海洋研究所 热带、亚热带海洋自然资源保护与修复重点实验室,广西 北海 536000
周炜(1993-),男,江苏省靖江市人,主要从事海洋次中尺度动力学、近岸动力过程等研究。E-mail: zhouwei19931021@163.com

收稿日期: 2020-06-12

  网络出版日期: 2020-09-15

基金资助

科技部政府间国际科技创新合作重点专项(2016YFE0112600);国家自然科学基金—浙江两化融合联合基金(U1609201);国家基金创新群体项目(41621064)

收起

Headland tidal residual eddies in the area adjacent to the Sanggou Bay and their generation mechanism

  • ZHOU Wei ,
  • XUAN Jiliang ,
  • HUANG Daji
Expand
  • 1. State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China;
    2. Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;
    3. Key Laboratory of Conservation and Restoration of Tropical and Subtropical Marine Natural Resources, Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai 536000, China

Received date: 2020-06-12

  Online published: 2020-09-15

Fold

摘要

桑沟湾邻近海域潮余流对该海域物质输运具有重要作用,但由于观测资料不足的限制,该海域潮余流的整体分布状况尚不明确。本文利用22套锚系海流观测资料和高分辨率数值模拟资料,分析了桑沟湾邻近海域潮余流的整体分布特征,并探讨了其产生机理。桑沟湾内潮余流总体上较弱,其邻近海域的潮余流在3个岬角(俚岛,寻山和楮山)附近呈现出显著的潮余流涡对结构,每个岬角的北面存在气旋式潮余流涡,南面存在反气旋式潮余流涡。无论是流速大小还是涡覆盖范围,俚岛和楮山外海潮余流涡对均大于寻山外海的涡对。动力诊断分析表明,岬角附近3对潮余流涡的主要形成机制都是由侧边界摩擦引起的水平剪切作用,底摩擦应力旋度的作用只影响俚岛附近的潮余流涡对,位势涡度守恒的作用都不显著。

关键词： 桑沟湾; 潮余流; 长期海流观测; 涡度分析; 数值模拟

本文引用格式

周炜 , 宣基亮 , 黄大吉 . 桑沟湾邻近海域岬角潮余流涡对及其产生机理[J]. 海洋学研究, 2020 , 38(3) : 10 -20 . DOI: 10.3969/j.issn.1001-909X.2020.03.002

Abstract

The tidal residual current in the adjacent area of Sanggou Bay plays an important role in material transport. However, due to the lack of observation data, the overall spatial pattern of the tidal residual current in this area is still unclear. 22 sets of observational data and high-resolution numerical simulation data of the ocean current were used to analyze the overall spatial characteristics of tidal residual currents and to reveal its formation mechanism. The tidal residual currents within the Sangou Bay are generally weak, while in the areas near the three headlands (Lidao, Xunshan and Chushan), the tidal residual currents show significant pair of eddies. To the northern part of each headland, there is a cyclonic tidal residual eddy; while to the southern part of each headland, there is an anticyclonic tidal residual eddy. The pair of eddies near the headlands of Lidao and Chushan are much stronger and cover wider area than those of Xunshan. Dynamic diagnosis based on the residual vorticity equation shows that the tidal residual eddies are mainly induced by the horizontal shearing due to the lateral boundary friction, the bottom friction stress curl only affects the tidal residual eddies near the headland of Lidao, and the effect of potential vorticity conservation is not significant in the formation process of the all three pair of the tidal residual eddies.

Key words： Sanggou Bay; tidal residual current; long-term observation of ocean current; diagnostic analysis of eddies; model simulation

参考文献

[1] 傅明珠,蒲新明,王宗灵,等.桑沟湾养殖生态系统健康综合评价[J].生态学报,2013,33(1):238-248.
FU Mingzhu, PU Xinming, WANG Zongling, et al. Integrated assessment of mariculture ecosystem health in Sanggou Bay[J]. Acta Ecologica Sinica, 2013, 33(1): 238-248.
[2] 方建光,王兴章.桑沟湾海带养殖容量的研究[J].海洋水产研究,1996,17(2):7-17.
FANG Jianguang, WANG Xingzhang. Assessing the carrying capacity of Sanggou Bay for culture of kelp[J]. Marine Fisheries Research, 1996, 17(2): 7-17.
[3] 赵俊,周诗赉,孙耀,等.桑沟湾增养殖水文环境研究[J].海洋水产研究,1996,17(2):68-79.
ZHAO Jun, ZHOU Shilai, SUN Yao, et al. Research on Sanggou Bay aquaculture hydro-environment[J]. Marine Fisheries Research, 1996, 17(2): 68-79.
[4] 孙耀,赵俊,周诗赉,等.桑沟湾养殖海域的水环境特征[J].中国水产科学,1998,5(3):69-75.
SUN Yao, ZHAO Jun, ZHOU Shilai, et al. Environmental features of cultural waters in Sanggou Bay[J]. Journal of Fishery Science of China, 1998, 5(3): 69-75.
[5] 何宇晴,黄大吉,曾定勇,等.桑沟湾筏式海带养殖对潮流垂直结构的影响[J].海洋学研究,2016,34(4):20-27.
HE Yuqing, HUANG Daji, ZENG Dingyong, et al. Effect of suspended kelp culture on vertical structure of tidal current in Sanggou Bay, China[J]. Journal of Marine Sciences, 2016, 34(4): 20-27.
[6] GRANT J, BACHER C. A numerical model of flow modification induced by suspended aquaculture in a Chinese bay[J]. Canadian Journal of Fisheries and Aquatic Sciences, 2001, 58(5): 1003-1011.
[7] ZENG Dingyong, HUANG Daji, QIAO Xudong, et al. Effect of suspended kelp culture on water exchange as estimated by in situ current measurement in Sanggou Bay, China[J]. Journal of Marine Systems, 2015, 149: 14-24.
[8] SHI Jie, WEI Hao, ZHAO Liang, et al. A physical-biological coupled aquaculture model for a suspended aquaculture area of China[J]. Aquaculture, 2011, 318(3-4): 412-424.
[9] WANG Xilong, DU Jinzhou, JI Tao, et al. An estimation of nutrient fluxes via submarine groundwater discharge into the Sanggou Bay—A typical multi-species culture ecosystem in China[J]. Marine Chemistry, 2014, 167: 113-122.
[10] 魏皓,赵亮,原野,等.桑沟湾水动力特征及其对养殖容量影响的研究——观测与模型[J].渔业科学进展,2010,31(4):65-71.
WEI Hao, ZHAO Liang, YUAN Ye, et al. Study of hydrodynamics and its impact on mariculture carrying capacity of Sanggou Bay: observation and modeling[J]. Progress in Fishery Sciences, 2010, 31(4): 65-71.
[11] 孙丕喜,张朝晖,郝林华,等.桑沟湾海水中营养盐分布及潜在性富营养化分析[J].海洋科学进展,2007,25(4):436-445.
SUN Pixi, ZHANG Zhaohui, HAO Linhua, et al. Analysis of nutrient distribution and potential eutrophication in seawater of the Sanggou Bay[J]. Advances in Marine Science, 2007, 25(4): 436-445.
[12] XUAN Jiliang, HE Yuqing, ZHOU Feng, et al. Aquaculture-induced boundary circulation and its impact on coastal frontal circulation[J]. Environmental Research Communications, 2019, 1(5): 051001.
[13] PINGREE R D, MADDOCK L. Tidally induced residual flows around an island due to both frictional and rotational effects[J]. Geophysical Journal International, 1980, 63(2): 533-546.
[14] ROBINSON I S. Tidal vorticity and residual circulation[J]. Deep Sea Research Part A. Oceanographic Research Papers, 1981, 28(3): 195-212.
[15] ZIMMERMAN J T F. Dynamics, diffusion and geomorphological significance of tidal residual eddies[J]. Nature, 1981, 290(5807): 549-555.
[16] YANG Zhaoqing, WANG Taiping. Tidal residual eddies and their effect on water exchange in Puget Sound[J]. Ocean Dynamics, 2013, 63(8): 995-1009.
[17] 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.
[18] EGBERT G D, EROFEEVA S Y. Efficient inverse modeling of barotropic ocean tides[J]. Journal of Atmospheric and Oceanic Technology, 2002, 19(2): 183-204.
[19] XUAN Jiliang, YANG Zhaoqing, HUANG Daji, et al. Tidal residual current and its role in the mean flow on the Changjiang Bank[J]. Journal of Marine Systems,2016, 154: 66-81.
[20] 杨昭庆.潮余环流的动力研究[J].东海海洋,1987,5(3):15-22.
YANG Zhaoqing. Dynamics of tidal residual circulation[J]. Donghai Marine Science, 1987, 5(3): 15-22.
[21] 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.
LÜ Xingang, ZHAO Chang, XIA Changshui, et al. Numerical study of water exchange in the Jiaozhou Bay and the tidal residual currents near the bay mouth[J]. Acta Oceanologica Sinica, 2010, 32(2): 20-30.
[22] 丁芮,陈学恩,曲念东.珠江口及邻近海域潮波数值模拟——Ⅰ模型的建立和分析[J].中国海洋大学学报,2015,45(11):1-9.
DING Rui, CHEN Xue'en, QU Niandong. Three-dimensional high-resolution numerical study of the tide and circulation in the Pearl River Estuary and its adjacent waters part I: Model building and analysis[J]. Periodical of Ocean University of China, 2015, 45(11): 1-9.
Options
文章导航

/

〈 〉