Estimating peak response frequencies in a tidal band in the seas adjacent to China with a numerical model

CUI Xinmei; FANG Guohong; TENG Fei; WU di

doi:10.1007/s13131-015-0593-z

中国近海潮汐响应峰值估算的数值模拟

doi: 10.1007/s13131-015-0593-z

1.
中国科学院南海海洋研究所热带海洋国家重点实验室广州 510301;中国科学院大学北京 100039;国家海洋局第一海洋研究所青岛 266061
2.
国家海洋局第一海洋研究所青岛 266061;中国海洋大学青岛 266100
3.
国家海洋局第一海洋研究所青岛 266061

基金项目: The National Natural Science Foundation of China under contract Nos 40676009 and 40606006; the Basic Research Project of Qingdao Science and Technology Program of China under contract No. 11-1-4-98-jch.

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- 收稿日期: 2014-03-06
- 修回日期: 2014-05-20

Estimating peak response frequencies in a tidal band in the seas adjacent to China with a numerical model

1.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100039, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Ocean University of China, Qingdao 266100, China
3.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

摘要

摘要: 本文设计了一种数值方法用于研究实际海域对外海强迫的响应特征. 方法应用于中国近海的模拟, 发现渤海的峰值响应频率为1.52 d^-1;北黄海的响应峰值频率为1.69 d^-1;京畿湾在频率1.7—2.7 d^-1间存在稳定的振幅高增益区;黄海(包括京畿湾)、东海陆架和台湾海峡在频率1.76—1.78d^-1间存在共同的高振幅增益频带, 表明上述三海区是一个有利于在此频率带上放大外来潮波的一个系统;北部湾、泰国湾和南海深海盆的峰值响应频率分别为0.91、1.01和0.98 d^-1. 此外, 东海Poincare波模态的峰值响应频率为3.91d^-1. 北黄海、北部湾和南海的峰值响应频率可由四分之一波长共振理论解释, 渤海则可由半波长共振理论解释. 所得结果还表明, 黄海—东海—台湾海峡系统、东海Poincare模态波、台湾海峡和泰国湾响应的动力学是值得进一步研究的问题.
- 中国近海 /
- 潮汐响应 /
- 峰值响应频率 /
- 共振 /
- 数值模式
Abstract: A numerical method is designed to examine the response properties of real sea areas to open ocean forcing. The application of this method to modeling the China's adjacent seas shows that the Bohai Sea has a highest peak response frequency (PRF) of 1.52 d^-1; the northern Yellow Sea has a PRF of 1.69 d^-1; the Gyeonggi Bay has a high amplitude gain plateau in the frequency band roughly from 1.7 to 2.7 d^-1; the Yellow Sea (including the Gyeonggi Bay), the East China Sea shelf and the Taiwan Strait have a common high amplitude gain band with frequencies around 1.76 to 1.78 d^-1 and are shown to be a system that responds to the open ocean forcing in favor of amplifying the waves with frequencies in this band; the Beibu Gulf, the Gulf of Thailand and the South China Sea deep basin have PRFs of 0.91, 1.01 and 0.98 d^-1 respectively. In addition, the East China Sea has a Poincare mode PRF of 3.91 d^-1. The PRFs of the Bohai Sea, the northern Yellow Sea, the Beibu Gulf and the South China Sea can be explained by a classical quarter (half for the Bohai Sea) wavelength resonance theory. The results show that further investigations are needed for the response dynamics of the Yellow Sea-East China Sea-Taiwan Strait system, the East China Sea Poincare mode, the Taiwan Strait, and the Gulf of Thailand.
- China's adjacent seas /
- response to tidal forcing /
- peak response frequency /
- resonance /
- numerical model

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参考文献(20)

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文章访问数: 1613
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中国近海潮汐响应峰值估算的数值模拟

doi: 10.1007/s13131-015-0593-z

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Estimating peak response frequencies in a tidal band in the seas adjacent to China with a numerical model

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