青岛-石岛近海反气旋中尺度涡旋存在证据及数值模拟

徐丹亚; 赵保仁

青岛-石岛近海反气旋中尺度涡旋存在证据及数值模拟

徐丹亚¹,
赵保仁²

1.
中国科学院南海海洋研究所, 广州 510301
2.
中国科学院海洋研究所, 青岛 266071

基金项目: 山东省自然科学基金(Y95E0266)

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出版历程
- 收稿日期: 1997-11-20
- 修回日期: 1998-11-11

Existential proof and numerical study of a mesoscale anticyclonic eddy in the Qingdao-Shidao offshore

Xu Danya¹,
Zhao Baoren²

1.
South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301
2.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071

摘要

摘要: 系统整理的历史实测海流和温盐资料显示出青岛-石岛近海水域全年都存在着中尺度反气旋式涡旋运动.利用二维数值模式,首次模拟出该涡旋的存在,并对这一涡旋的形成机制进行了探讨,数值模拟结果和实测吻合良好.数值计算表明:在冬季盛行风的作用下,山东半岛南岸出现减水,迫使北上的黄海暖流中的一部分向西北方向延伸,在到达山东半岛近海后向右转向,形成东北向沿岸流,这样,与绕过山东半岛大约沿40～50m等深线南下的黄海沿岸流作用,在青岛-石岛近海形成一个中尺度反气旋涡旋.夏季由于偏南风的作用,致使山东半岛南部近海浅水区域海水都向东北方向流动,与沿黄海冷水团锋面南下的黄海沿岸流相作用,由于流速切变也形成了上述涡旋.
- 中尺度涡旋 /
- 数值模似 /
- 黄海暖流 /
- 黄海沿岸流
Abstract: Current measurement and traces of drift bottles and drift cards show existence of a mesoscale anticyclonic eddy in the Qingdao-Shidao offshore in a round year.A two dimensional numerical model is firstly employed to modelling this eddy phenomenon.In the model we consider the main factor which influences the circulation greatly as wind stress,real topography,volume transportation.baroclinic effect etc.It is show that an anticylonic eddy which exists in the area near the Qingdao-Shidao coast.The computational results agree well with the analysed results from observation.The distribution of salinity and temperature also shows the existence of the anticyclonic eddy.By analyse the Vortex Equation and the result of a series of numerical model tests.the reason why and how this eddy is formed is explained.
- Mesoscale anticyclonic eddy /
- numerical modelling /
- Huanghai Sea warm current /
- Huanghai Sea costal current

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参考文献(17)

Zhang Fagao,Mao Hanli,Leng Yangui et al.Analysis of drift bottle and drift card experiments in I3ohai Sea and Huanghai Sea(1975-1980).C.J.of Ckeanology and Limnology.1987.5(1):67~72

Le Kentang.Numerical experiments on dynamics of the wintertime Bohai Sea and Yellow Sea circulation.In:Proceedings of the 2nd International Symposium on Marine Science in Yellow Sea,Qingdao;Qingdao(kean University Press.1991,47~62

Le Kentang,Feng Ming,Wang Yi.A numerical study of the wintertime circulation in the Bohai and Huanghai Sea.C.J.of Oceanology and Limnology,1993.11(2):149~160

刘兴泉.黄海冬季环流的数值模拟.海洋与湖沼,1996.27(5):546~554

Qi Jianhua,Zhang Chen.Zhang Fagao.The diagnostic numerical simulation of three-dimensional baroclinic circulation in the Yellow Sea and Bohai Sea.Journal of Ckean University of Qingdao.1996,26(4):421~430

刘光章,尹毅.青岛近海表层海水流动状况及对青岛沿岸污染的影响.黄渤海海洋,1984,2(1):17~25

赵保仁.单站浮标测流资料的谱分析.海洋科学集刊,第21集,北京:科学出版社,1984.35~48

山东省科学技术委员会.山东省海岸带和海涂资源综合调查报告集.北京:中国科学技术出版社,1984,206~207

汤明义.渤、黄海海表面多年旬平均水温分布图.海洋通报,1988,7(5~6):1~219

赵保仁,胡敦欣,丁宗信.秋末南黄海的透光度及其与环流的关系.海洋科学集刊,第27集,北京:科学出版社,1986.97~105

赵保仁.南黄海西部的陆架锋及冷水团环流结构的初步研究.海洋与湖沼,1987,18(4):217~226

赵保仁,方国洪,曹德明.渤、黄、东海潮汐潮流的数值模拟.海洋学报,1994,16(5):1~10

井传才,唐万林,吴结晶.育岛近海海陆大风的对比分析.黄渤海海洋,1995,13(4),17~21

中国科学院海洋研究所气象组渤、黄、东海海面热平衡图集.北京:科学出版社,1977,147~159

赵保仁,方国洪,曹德明.渤海、黄海和东海的潮余流特征及其与近岸环流输送的关系.海洋科学集刊,第36集,北京:科学出版社,1995,1~11

袁熠初,苏纪兰,赵金三.东中国海陆架环流的单层模式.海洋学报,1982.4(1):1~11

窦振兴,张存智,张砚峰.渤海风海流的数值计算.海洋学报,1986,8(5):527~533