Study on Molave typhoon wave in South China Sea based on SWAN model

doi:10.3969/j.issn.1001-909X.2017.04.002

Abstract

Abstract: The construction of water transport project in China is frequently attacked by typhoon waves. To provide useful help for disaster prevention and mitigation of typhoon waves, the third generation wave model SWAN was established,which is suitable for South China Sea. Meanwhile, No. 0906 typhoon “Molave” was taken as an example to analyze the simulation results. Results show that the wind field and wave field are similar, i.e. the magnitude decreases from center to periphery, and the direction is counterclockwise rotation; the wind field is circular symmetric, while the wave field is elliptically symmetric due to the topography and coastline. The effective wave height contour also decreases from center to periphery, and the shape is influenced greatly by the topography and the coastline. Finally, the composition mechanism of typhoon wave was discussed. The results show that both storm wave and surge can form typhoon waves, and the submarine topography and coastline(e.g, island effect) also influence the characteristics of typhoon waves.

Key words: South China Sea, wave model, typhoon wave, wave field, effective wave height

CLC Number:

P731.33

CHEN Cheng, LI Yan. Study on Molave typhoon wave in South China Sea based on SWAN model[J]. Journal of Marine Sciences, 2017, 35(4): 14-19.

References

[1] YANG Chun-cheng, DAI Ming-rui, GAO Zhi-hua, et al.A numerical prediction method for typhoon waves[J]. Acta Oceanologica Sinica,1996,18(1):1-12.
杨春成,戴明瑞,高志华,等.一种台风浪的数值预报方法[J].海洋学报,1996,18(1):1-12.
[2] CHEN Xi, MIN Jin-zhong, SHA Wen-yu, et al.A simulaton of nearshore typhoon waves[J]. Marine Science Bulletin,2003,22(2):9-16.
陈希,闵锦忠,沙文钰,等.近岸海浪模式在中国东海台风浪模拟中的应用——数值模拟及物理过程研究[J].海洋通报,2003,22(2):9-16.
[3] ZHAO Hong-jun, SONG Zhi-yao, XU Fu-min, et al.Numerical simulation of typhoon waves in the South China Sea——a case study of typhoon Chanchu[J]. The Ocean Engineering,2010,28(3):128-134.
赵红军,宋志尧,徐福敏,等.南中国海台风浪数值模拟研究——以台风"珍珠"为例[J].海洋工程,2010,28(3):128-134.
[4] WANG Hong-chuan. Application of combined distribution between wave height and set-up induced by storm surge[J]. Port & Waterway Engineering,2014(3):51-56.
王红川.风暴潮增水和台风浪联合分布在北仑港中的应用[J].水运工程,2014(3):51-56.
[5] QI Qing-hui, ZHU Zhi-xia, DONG Pei-hua, et al.Numerical simulation on Damrey typhoon storm surge in Lianyungang sea area[J]. Port & Waterway Engineering,2016(5):19-23.
齐庆辉,朱志夏,东培华,等.连云港海域“达维”台风风暴潮数值模拟[J].水运工程,2016(5):19-23.
[6] TANG Yan-ping, LIN Xiang.Numerical simulation and characteristic analysis of typhoon waves in Fujian coastal[J]. Port & Waterway Engineering,2017(4):53-59,93.
唐艳平,林祥.福建沿海台风浪数值模拟及特性分析[J].水运工程,2017(4):53-59,93.
[7] WAMDI G. The WAM model—A third generation ocean wave prediction model[J]. J Phys Oceanogr,1988,18:1 775-1 810.
[8] BOOIJ N, RIS R C, HOLTHUIJSEN L H. A third-generation wave model for coastal regions, Part 1: Model description and validation[J]. J Geo Res,1999,104(4):7 649-7 666.
[9] LI Lei, LIU Yan-xiang,ZHANG Li-jie, et al. Numerical study of the fine-scale wind structure over the paiya mountain in Shenzhen during the landing period of typhoon Molave[J].Journal of Tropical Meteorology,2012,28(6):911-918.
李磊,柳艳香,张立杰,等.台风“莫拉菲”登陆期间深圳排牙山周边风场结构的数值模拟研究[J].热带气象学报,2012,28(6):911-918.
[10] LIANG Hong-sheng. Diagnostic analysis on track and precipitation of typhoon Molave[J]. Advances in Marine Science,2011,29(1):28-36.
梁宏升.台风“莫拉菲”移动路径和降水诊断分析[J].海洋科学进展,2011,29(1):28-36.
[11] XU Fu-min, ZHANG Chang-kuan,TAO Jian-feng. Mechanism and application of a third generation wave model SWAN for shallow water [J]. Advances in Water Science,2004,15(4):538-542.
徐福敏,张长宽,陶建峰.浅水波浪数值模型SWAN的原理及应用综述[J].水科学进展,2004,15(4):538-542.
[12] CAVALERI L, MALANOTTE-RIZZOLI P. Wind wave prediction in shallow water:Theory and applications[J]. J Geophys Res,1981,86(C11):10 961-10 973.
[13] KOMEN G J, HASSELMANN S, HASSELMANN K.On the existence of a fully developed wind-sea spectrum[J].J Phys Oceanogr,1984,14:1 271-1 285.