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Analysis of the typhoon wave distribution simulated in WAVEWATCH-Ⅲ model in the context of Kuroshio and wind-induced current 认领 引用 被引量：6
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作者 HU Yuyi SHAO Weizeng +3 位作者 SHI Jian SUN Jian JI Qiyan CAI Lina 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2020年第6期1692-1710,共19页
To investigate the relationship between surface currents and wave distributions in typhoons,we took the Typhoon Talim in 2017 as a case,and found that the track of the typhoon winds up to 50 m/s was almost consistent ... To investigate the relationship between surface currents and wave distributions in typhoons,we took the Typhoon Talim in 2017 as a case,and found that the track of the typhoon winds up to 50 m/s was almost consistent with the Kuroshio track,particularly from September 13 to 16,2017.The surface current data,derived from the NCEP Climate Forecast System Version 2(CFSv2)from the National Center of Atmospheric Research(NCAR),revealed that the speed of the wind-induced current exceeded that of the Kuroshio in the region with the maximum wind speed.In this study,was utilized a third-generation numeric wave model,WAVEWATCH-Ⅲ(the latest version 5.16),developed by the National Oceanic and Atmospheric Administration(NOAA),to simulate the wave fields of Typhoon Talim using the European Centre for Medium-Range Weather Forecasts(ECMWF)reanalysis wind data in 0.125°×0.125°grid as the forcing field.We found that the root-mean-square error(RMSE)of the significant wave height(SWH)was 0.34 m when validated against measurements from altimeter Jason-2.In addition,we discovered that the SWH had a similar tendency to the change in the surface current speed that was approximately 0.5 m/s at the beginning of Typhoon Talim.However,the relationship became weak as the surface current speed was below 0.2 m/s.Our findings show that the distribution of typhoon waves is resulted from the interaction of surface current and the wind-sea portion of the wave system,since the distribution pattern of wind-sea is consistent with the surface current,and there is a weak relationship between surface current and swell. 展开更多
关键词 current typhoon wave WAVEWATCH-Ⅲmodel
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Optimization of multi-model ensemble forecasting of typhoon waves 认领 引用 被引量：2
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作者 Shun-qi Pan Yang-ming Fan +1 位作者 Jia-ming Chen Chia-chuen Kao 《Water Science and Engineering》 EI CAS CSCD 2016年第1期52-57,共6页
Accurately forecasting ocean waves during typhoon events is extremely important in aiding the mitigation and minimization of their potential damage to the coastal infrastructure, and the protection of coastal communit... Accurately forecasting ocean waves during typhoon events is extremely important in aiding the mitigation and minimization of their potential damage to the coastal infrastructure, and the protection of coastal communities. However, due to the complex hydrological and meteorological interaction and uncertainties arising from different modeling systems, quantifying the uncertainties and improving the forecasting accuracy of modeled typhoon-induced waves remain challenging. This paper presents a practical approach to optimizing model-ensemble wave heights in an attempt to improve the accuracy of real-time typhoon wave forecasting. A locally weighted learning algorithm is used to obtain the weights for the wave heights computed by the WAVEWATCH III wave model driven by winds from four different weather models （model-ensembles）. The optimized weights are subsequently used to calculate the resulting wave heights from the model-ensembles. The results show that the opti- mization is capable of capturing the different behavioral effects of the different weather models on wave generation. Comparison with the measurements at the selected wave buoy locations shows that the optimized weights, obtained through a training process, can significantly improve the accuracy of the forecasted wave heights over the standard mean values, particularly for typhoon-induced peak waves. The results also indicate that the algorithm is easy to imnlement and practieal for real-time wave forecasting. 展开更多
关键词 Wave modeling Optimization Forecasting Typhoon waves WAVEWATCH III Locally weighted learning algorithm
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NUMERICAL SIMULATION OF TYPHOON WAVE UNDER THE INFLUENCE OF WINNIE (NO. 9711) 认领 引用
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作者 蒋小平 钟中 +1 位作者 张金善 陆文锋 《Journal of Tropical Meteorology》 2007年第2期197-200,共4页
In this paper, the wind field provided by a meso-scale atmospheric model is employed. When main physical processes, including wave-current interactions, are considered, the latest version of the third generation wave ... In this paper, the wind field provided by a meso-scale atmospheric model is employed. When main physical processes, including wave-current interactions, are considered, the latest version of the third generation wave model SWAN is applied to simulate the typhoon wave generated by Typhoon Winnie. The model results are compared with the TOPEX/POSEIDON and ERS-2 satellite altimeter data and analyzed in details. Then the distribution of wave fields are analyzed, with the results showing that applying SWAN to simulate large-scale domain can also fairly reproduce the observed features of waves and realistically reflect the distribution of typhoon waves. 展开更多
关键词 typhoon waves SWAN Winnie meso-scale numerical model
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The study on the bottom friction and the breaking coefficient for typhoon waves in radial sand ridges—the Lanshayang Channel as an example 认领 引用
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作者 XU Zhuo ZHANG Wei +1 位作者 LU Peidong CHEN Kefeng 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2015年第3期99-107,共9页
Owing to the interactions among the complex terrain, bottom materials, and the complicate hydrodynam-ics, typhoon waves show special characteristics as big waves appeared at the high water level （HWL） and small wave... Owing to the interactions among the complex terrain, bottom materials, and the complicate hydrodynam-ics, typhoon waves show special characteristics as big waves appeared at the high water level （HWL） and small waves emerged at low and middle water levels （LWL and MWL） in radial sand ridges （RSR）. It is as-sumed that the mud damping, sandy bed friction and wave breaking effects have a great influence on the typhoon wave propagation in this area. Under the low wave energy, a mud layer will form and transport into the shallow area, thus the mud damping effects dominate at the LWL and the MWL. And high Collins coef-ficient （c around 1） can be applied to computing the damping effects at the LWL and the MWL. But under the high wave energy, the bottom sediment will be stirred and suspended, and then the damping effects disappear at the HWL. Thus the varying Collins coefficient with the water level method （VCWL） is imple-mented into the SWAN to model the typhoon wave process in the Lanshayang Channel （LSYC） of the RSR, the observed wave data under “Winnie” （“9711”） typhoon was used as validation. The results show that the typhoon wave in the RSR area is able to be simulated by the VCWL method concisely, and a constant wave breaking coefficient （γ） equaling 0.78 is better for the RSR where wide tidal flats and gentle bed slopes exist. 展开更多
关键词 typhoon wave radial sand ridges RSR mud damping effects varying Collins coefficient with the water level method wave breaking coefficient
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A method to predict typhoon waves 认领 引用 被引量：1
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作者 Yang Chuncheng Dai Mingrui +7 位作者 Gao Zhihua Cheng Zhan Xu Fuxiang Liu Yu Li Fengjin Li Jie Su Dongfu Zhang Dacuo and Xu Qichun eived (National Marine Environment Forecast Center, State Oceanic Administration, Beijing 100081, China Institute of Physical Oce 《Acta Oceanologica Sinica》 SCIE CAS 1995年第2期167-180,共14页
The presented method for numerical typhoon wave prediction is composed of a scheme for real time pressure forecasts, a marine wind numerical model and a typhoon wave numerical model. In the Northwest Pacific Ocean and... The presented method for numerical typhoon wave prediction is composed of a scheme for real time pressure forecasts, a marine wind numerical model and a typhoon wave numerical model. In the Northwest Pacific Ocean and China seas where water depth is over 20 m, a hybrid wave model [Wen Shengchang, Zhang Dacuo, Chen Bobal and Guo Peifang. 1989, Acta Oceanologica Sinica, 8 (1), 1～14; Zhang Dacuo, Wu Zengmao,Jiang Decai, Wang Wei, Chen Bobai, Tat Weitao, Wen Shengchang, Xu Qichun and Guo Peifaug. 1992, Acta Oceanologica Sinica, 11 (2), 157～178] is employed with 1°×1°grids, while in the South China Sea and East China Sea where typhoon frequently appears, the WAM model (WAMDI Group. 1988, Journal of Physical Oceanography, 18, 1755～1810) of shallow water version is embedded with (1 /4 )°×(1 /4)°grids. The boundary condition at the open boundary of the WAM model is provided by the hybrid model. After 3 a of testing forecasts(Yang Chuncheng, Dai Mingrui and Zhang Dacuo. 1992, International Symposium on Tropical Cyclone Disasters, October 12～16, Beijing, 404～409 ) and improvement, this system was put into operational use on the forecasting computer network of National Marine Environment Forecast Center of China in June, 1993. The wave predictions of 22 typhoon events show that the system is stable and prompt, and the forecast results are satisfactory. This system provides reliable numerical products for the disaster-prevention forecasts. The product is broadcasted in CCTV News at every noon. 展开更多
关键词 Typhoon wave marine wind numerical model sea wave numerical model television vocational forecasts.
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CHGS method for numerical forecasting of typhoon waves-Ⅰ. Spectrum of waves in growing phase 认领 引用
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作者 Sui Shifeng South China Sea Institute of Oceanology, Academia Sinica, Guangzhou, China 《Acta Oceanologica Sinica》 SCIE CAS 1990年第3期343-352,共10页
Owing to the fact that the wind speed and direction of typhoon vary rapidly with time and space in typhoon fetch; the nearer to the typhoon eye the greater the wind velocity, and the shorter the wind fetch the smaller... Owing to the fact that the wind speed and direction of typhoon vary rapidly with time and space in typhoon fetch; the nearer to the typhoon eye the greater the wind velocity, and the shorter the wind fetch the smaller the wind time,as a result,the more difficult for the wind wave to fully grow. Hence.in typhoon wave numerical calculation it is impossible to use the model for a fully grown wave spectrum. Lately, the author et at. presented a CHGS method for numerical forecasting of typhoon waves, where a model for the growing wave spectrum was set up (see Eq. (2) in the text). The model involves a parameter indicating the growing degree of wind wave, i. e. ,the mean wave age β. When βvalue is small, the wave energy is chiefly concentrated near the peak frequency, so that the spectral peak gets high and steep; with the increase of β the spectral shape gradually gets lower and gentler; when β=Ⅰ, the wave fully grows, the growing spectrum becomes a fully grown P-M spectrum. The model also shows a spectral “overshooting” phenomenon within the “balance zone”. 展开更多
关键词 Spectrum of waves in growing phase CHGS method for numerical forecasting of typhoon waves
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基于WAVEWATCH Ⅲ在超强台风快速增强阶段的台风浪研究 认领 引用
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作者 陈辰 经荣 +1 位作者 陈浩宇 刘敬贤 《中国航海》 CSCD 北大核心 2026年第4期143-152,共10页
随着航运业的蓬勃发展,为保障船舶的安全航行以及提高船舶的运营效率,对极端海况背景下的海浪精准模拟提出了更高要求。现有第三代海浪数值模式(WW3)在超强台风快速增强阶段的适用性和最佳模拟方案等方面仍存在不足,难以有效解决台风海... 随着航运业的蓬勃发展,为保障船舶的安全航行以及提高船舶的运营效率,对极端海况背景下的海浪精准模拟提出了更高要求。现有第三代海浪数值模式(WW3)在超强台风快速增强阶段的适用性和最佳模拟方案等方面仍存在不足,难以有效解决台风海事预警中,对超强台风快速增强阶段的台风浪精确模拟与浪灾风险精准定级的问题。针对上述问题,采用一种多维度敏感性分析的方法。首先,基于中国气象局所提供的西北太平洋热带气旋最佳路径数据集以及广东省海事局的船舶事故调查报告,获取了台风特征以及船舶事故信息。其次,基于WW3模式构建了高精度的台风浪模拟试验;在源项方案方面,采用了WW3模式当中常用的3种方案(ST2/ST4/ST6);在驱动风场方面,采用天气研究与预报模式、欧洲中期天气预报中心第五代全球气候大气再分析数据以及美国国家环境预报中心最终分析资料,以探究WW3模式的适用性与最佳模拟方案。并结合国家海洋局观测浮标及统计检验指标,形成完整的技术方案。在超强台风快速增强阶段的背景下,通过采用不同的源项方案与驱动风场进行WW3试验,并与观测浮标进行对比分析。结果表明:以天气预报模式(WRF)风场驱动,并采用ST2方案的试验在台风中心位置处的模拟效果更佳,其余区域ST4和ST6方案表现更佳。 展开更多
关键词 航行安全 WAVEWATCHⅢ 敏感性分析 台风浪 台风快速加强
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Estimation and Prediction of Typhoons and Wave Overtopping in Qingdao, China 认领 引用 被引量：6
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作者 WANG Zhifeng LI Songtao +2 位作者 HAO Yan MA Yan WU Kejian 《Journal of Ocean University of China》 SCIE CAS CSCD 2020年第5期1017-1028,共12页
This study aims to estimate and predict the impact of climate change on typhoons and wave overtopping during typhoon progresses in Qingdao, China. The SWAN wave model is used to simulate wave elements. The scale coeff... This study aims to estimate and predict the impact of climate change on typhoons and wave overtopping during typhoon progresses in Qingdao, China. The SWAN wave model is used to simulate wave elements. The scale coefficients of wave overtopping are estimated using an empirical prediction formula. A total of 75 tropical cyclones affected Qingdao from 1949 to 2019. These tropical cyclones can be grouped into eight categories according to typhoon tracks. Typhoon wind speed during Track G is projected to decrease, and those of the other seven typhoon progresses will increase by 0.35% – 0.75% in 2025, 0.69% – 1.5% in 2035, and 1.38% – 3.0% in 2055. The significant wave height and wave overtopping outside the bay are greater than those inside the bay. Among the 506 typical points selected, the maximum values of the significant wave height and wave overtopping inside the bay are mainly distributed in the range of 0 – 2 m and 0 – 60 m^3 km-1 s-1, respectively. The increments of the significant wave height and wave overtopping of Track F are most obvious. The significant wave height of Track F will increase by 50.5% in 2025, 51.8% in 2035, and 53.4% in 2055. In the 2℃ scenario, the maximum value of wave overtopping of Track F will increase by 21.9% in 2025, 24.3% in 2035, and 29.5% in 2055. In the 4℃ scenario, the maximum value of wave overtopping of Track F will increase by 21.9% in 2025, 24.3% in 2035, and 29.5% in 2055. 展开更多
关键词 climate change typhoon wind typhoon wave wave overtopping Qingdao
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Effect of oceanic current on typhoon-wave modeling in the East China Sea 认领 引用 被引量：8
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作者 崔红 何海伦 +1 位作者 刘晓辉 李熠 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第10期592-599,共8页
We use the WAVEWATCH-III model to quantify the effect of oceanic current on typhoon-wave modeling in the East-China-Sea（ECS）.Typhoons Jelawat and Saomai in the autumn of 2000 are hindcasted.The oceanic currents in t... We use the WAVEWATCH-III model to quantify the effect of oceanic current on typhoon-wave modeling in the East-China-Sea（ECS）.Typhoons Jelawat and Saomai in the autumn of 2000 are hindcasted.The oceanic currents in the ECS are mainly constituted of Kuroshio and typhoon-generated currents.The results show distinguishable differences in wave height and wave period under the typhoon conditions.The oceanic current causes the maximum differences,of up to a 0.5 m significant wave height and a 1 s mean wave period.Comparisons between typhoons Jelawat and Saomai show the dependence of the current effect on the typhoon characteristics. 展开更多
关键词 wave-current interaction East China Sea typhoon wave WAVEWATCH-III
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Typhoon-Induced Ocean Waves and Stokes Drift:A Case Study of Typhoon Mangkhut(2018) 认领 引用
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作者 WU Zhi-yuan GAO Kai +6 位作者 CHEN Jie ZHANG Hao-jian DENG Bin JIANG Chang-bo LIU Yi-zhuang LYU Zhao YAN Ren 《China Ocean Engineering》 SCIE EI CSCD 2024年第4期711-724,共14页
Ocean waves and Stokes drift are generated by typhoons.This study investigated the characteristics of ocean waves and wave-induced Stokes drift and their effects during Typhoon Mangkhut using European Centre for Mediu... Ocean waves and Stokes drift are generated by typhoons.This study investigated the characteristics of ocean waves and wave-induced Stokes drift and their effects during Typhoon Mangkhut using European Centre for MediumRange Weather Forecasts(ECMWF)ERA5 datasets and observational data.The results revealed that the typhoon generated intense cyclones and huge typhoon waves with a maximum wind speed of 45 m/s,a minimum pressure of955 h Pa,and a maximum significant wave height of 12 m.The Stokes drift caused by typhoon waves exceeded 0.6m/s,the Stokes depth scale exceeded 18 m,and the maximum Stokes transport reached 6 m2/s.The spatial distribution of 10-m wind speed,typhoon wave height,Stokes drift,Stokes depth,and Stokes transport during the typhoon was highly correlated with the typhoon track.The distribution along the typhoon track showed significant zonal asymmetry,with greater intensity on the right side of the typhoon track than on the left side.These findings provide important insights into the impact of typhoons on ocean waves and Stokes drift,thus improving our understanding of the interactions between typhoons and the ocean environment.This study also investigated the contribution of Stokes transport to the total net transport during typhoons using Ekman-Stokes Numbers as a comparative measure.The results indicated that the ratio of Stokes transport to the total net transport reached up to 50%within the typhoon radius,while it was approximately 30%outside the radius.Strong Stokes transport induced by typhoon waves led to divergence in the transport direction,which resulted in upwelling of the lower ocean as a compensation current.Thus,Stokes transport played a crucial role in the vertical mixing of the ocean during typhoons.The findings suggested that Stokes transport should be paid more attention to,particularly in high latitude ocean regions,where strong winds can amplify its effects. 展开更多
关键词 Stokes drift typhoon waves Ekman-Stokes transport vertical mixing Typhoon Mangkhut
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Numerical investigation of ocean waves generated by three typhoons in offshore China 认领 引用 被引量：4
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作者 Qing Shi Jun Tang +1 位作者 Yongming Shen Yuxiang Ma 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2021年第12期125-134,共10页
The influences of the three types of reanalysis wind fields on the simulation of three typhoon waves occurred in2015 in offshore China were numerically investigated.The typhoon wave model was based on the simulating w... The influences of the three types of reanalysis wind fields on the simulation of three typhoon waves occurred in2015 in offshore China were numerically investigated.The typhoon wave model was based on the simulating waves nearshore model(SWAN),in which the wind fields for driving waves were derived from the European Centre for Medium-Range Weather Forecasts(ECMWF)Re-Analysis-Interim(ERA-interim),the National Centers for Environmental Prediction climate forecast system version 2(CFSv2)and cross-calibrated multi-platform(CCMP)datasets.Firstly,the typhoon waves generated during the occurrence of typhoons Chan-hom(1509),Linfa(1510)and Nangka(1511)in 2015 were simulated by using the wave model driven by ERA-interim,CFSv2 and CCMP datasets.The numerical results were validated using buoy data and satellite observation data,and the simulation results under the three types of wind fields were in good agreement with the observed data.The numerical results showed that the CCMP wind data was the best in simulating waves overall,and the wind speeds pertaining to ERA-Interim and CCMP were notably smaller than those observed near the typhoon centre.To correct the accuracy of the wind fields,the Holland theoretical wind model was used to revise and optimize the wind speed pertaining to the CCMP near the typhoon centre.The results indicated that the CCMP wind-driven SWAN model could appropriately simulate the typhoon waves generated by three typhoons in offshore China,and the use of the CCMP/Holland blended wind field could effectively improve the accuracy of typhoon wave simulations. 展开更多
关键词 SWAN blended wind fields typhoon waves three typhoons Chan-hom Linfa Nangka
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A statistical analysis of typhoon frequency and application in design wave height 认领 引用 被引量：3
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作者 WANG Liping ZHANG Jianfang +1 位作者 LI Yongping ZHANG Yufang 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2011年第4期24-32,共9页
A typhoon leading is an important natural disaster to many disasters to China. A giant wave caused by it has brought large threat for an offshore project. Based on the maximum entropy principle,one new model which has... A typhoon leading is an important natural disaster to many disasters to China. A giant wave caused by it has brought large threat for an offshore project. Based on the maximum entropy principle,one new model which has 4 undetermined parameters is constructed,which is called the discrete maximum entropy probabilistic model. In practical applications,the design wave height is considered as soon as possible in a typhoon affected sea areas,the result fits the observed data well. Further more this model does not have the priority compared with other distributions as Poisson distribution. The model provides a theoretical basis for the engineering design more reasonable when considering typhoon factors comprehensively. 展开更多
关键词 discrete maximum entropy compound extreme values typhoon wave heights
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Simulation of Typhoon-Driven Waves in the Yangtze Estuary with Multiple-Nested Wave Models 认领 引用 被引量：17
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作者 徐福敏 Will Perrie +2 位作者 张君伦 宋志尧 Bechara Toulany 《China Ocean Engineering》 SCIE EI 2005年第4期613-624,共12页
Typhoon-generated waves are simulated with two numerical wave models, the SWAN model for the coastal and Yangtze Estuary domain, nested within the WAVEWATCHIII （WW3） for the basin-scale East China Sea domain. Typhoo... Typhoon-generated waves are simulated with two numerical wave models, the SWAN model for the coastal and Yangtze Estuary domain, nested within the WAVEWATCHIII （WW3） for the basin-scale East China Sea domain. Typhoon No. 8114 is chosen because it was very strong, and generated high waves in the Estuary. WW3 was implemented for the East China Sea coarse-resolution computational domain, to simulate the waves over a large spatial scale and provide boundary conditions for SWAN model simulations, implemented on a fine-resolution nested domain for the Yangtze Estuary area. The Takahashi wind model is applied to the simulation of the East China Sea scale （3-hourly） and Yangtze Estuary scale （1-hourly） winds. Simulations of significant wave heights in the East China Sea show that the highest waves are on the right side of the storm track, and maxima tend to occur at the eastern deep-water open boundary of the Yangtze Estuary. In the Yangtze Estuary, incoming swell is dominant over locally generated waves before the typhoon approaches the Estuary. As the typhoon approaches the Estuary, wind waves and swell coexist, and the wave direction is mainly influenced by the swell direction and the complex topography. 展开更多
关键词 WW3 SWAN typhoon-generated waves East China Sea Yangtze Estuary Takahashi wind model 2 D wave spectra significant wave height
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Comparison Study on Wind Input and Whitecapping Dissipation Expressions in Numerical Simulation of Typhoon-Generated Waves 认领 引用 被引量：1
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作者 葛义军 钟中 +1 位作者 张金善 蒋小平 《China Ocean Engineering》 SCIE EI 2008年第4期635-647,共13页
In order to investigate the effect of wind input and whitecapping dissipation on the simulation of typhoon-waves, three experiments are conducted with the latest version of SWAN （Simulating WAves Nearshore） model. T... In order to investigate the effect of wind input and whitecapping dissipation on the simulation of typhoon-waves, three experiments are conducted with the latest version of SWAN （Simulating WAves Nearshore） model. The three experiments adopt the Komen, Janssens, and Westhuysen expressions for wind input and whitecapping dissipation, respectively. Besides the above-mentioned source tems, other parameterization schemes in these experiments are the same. It shows that the experiment with the Westhuysen expression result in the least simulation errors while that with the Janssens expression has the most. The results from the experiments with Komen and Westhuysen expressions show that the differenees in significant wave height （SWH） have a good correlation with the differences in dissipation energy caused by whiteeapping. This indicates that the whitecapping dissipation source term plays an important role in the resultant differences of the simulated SWH between the two experiments. 展开更多
关键词 wind input whitecapping dissipation SWAN typhoon-generated waves
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Wave-Tide-Surge Coupled Simulation for Typhoon Maemi 认领 引用 被引量：5
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作者 Byung Ho Choi Byung Il Min +1 位作者 Kyeong Ok Kim Jin Hee Yuk 《China Ocean Engineering》 SCIE EI CSCD 2013年第2期141-158,共18页
The main task of this study focuses on studying the effect of wave-current interaction on currents, storm surge and wind wave as well as effects of current induced wave refraction and current on waves by using numeric... The main task of this study focuses on studying the effect of wave-current interaction on currents, storm surge and wind wave as well as effects of current induced wave refraction and current on waves by using numerical models which consider the bottom boundary layer and sea surface roughness parameter for shallow and smooth bed area around Korean Peninsula. The coupled system （unstructured-mesh SWAN wave and ADCIRC） run on the same unstructured mesh. This identical and homogeneous mesh allows the physics of wave-circulation interactions to be correctly resolved in both models. The unstructured mesh can be applied to a large domain allowing all energy from deep to shallow waters to be seamlessly followed. There is no nesting or overlapping of structured wave meshes, and no interpolation is required. In response to typhoon Maemi （2003）, all model components were validated independently, and shown to provide a faithful representation of the system＇s response to this storm. The waves and storm surge were allowed to develop on the continental shelf and interact with the complex nearshore environment. The resulting modeling system can be used extensively for prediction of the typhoon surge. The result show that it is important to incorporate the wave-current interaction effect into coastal area in the wave-tide-surge coupled model. At the same time, it should consider effects of depth-induced wave breaking, wind field, currents and sea surface elevation in prediction of waves. Specially, we found that： （1） wave radiation stress enhanced the current and surge elevation otherwise wave enhanced nonlinear bottom boundary layer decreased that, （2） wind wave was significantly controlled by sea surface roughness thus we cautiously took the experimental expression. The resulting modeling system can be used for hindcasting （prediction） the wave-tide-surge coupled environments at complex coastline, shallow water and fine sediment area like areas around Korean Peninsula. 展开更多
关键词 typhoon Maemi finite element model tide-surge-wave coupling
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A Maximum-Entropy Compound Distribution Model for Extreme Wave Heights of Typhoon-Affected Sea Areas 认领 引用 被引量：4
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作者 王莉萍 孙效光 +1 位作者 吕可波 徐德伦 《China Ocean Engineering》 SCIE EI 2012年第1期49-58,共10页
A new compound distribution model for extreme wave heights of typhoon-affected sea areas is proposed on the basis of the maximum-entropy principle. The new model is formed by nesting a discrete distribution in a conti... A new compound distribution model for extreme wave heights of typhoon-affected sea areas is proposed on the basis of the maximum-entropy principle. The new model is formed by nesting a discrete distribution in a continuous one, having eight parameters which can be determined in terms of observed data of typhoon occurrence-frequency and extreme wave heights by numerically solving two sets of equations derived in this paper. The model is examined by using it to predict the N-year return-period wave height at two hydrology stations in the Yellow Sea, and the predicted results are compared with those predicted by use of some other compound distribution models. Examinations and comparisons show that the model has some advantages for predicting the N-year return-period wave height in typhoon-affected sea areas. 展开更多
关键词 maximum entropy principle typhoon occurrence-frequency N-year return period wave heights maximumentropy compound distribution
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Modelling windwave driven by typhoon Chan-Hom (201509) in the East China Sea 认领 引用
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作者 H.Q.Zhang B.C.Nie 《Theoretical & Applied Mechanics Letters》 CAS CSCD 2016年第6期297-301,共5页
Typhoon-generated waves pose a serious threat to the development of offshore wind power; therefore typical wave parameters caused by typhoon near Donghai Bridge, a demonstration area of offshore wind farm, were analys... Typhoon-generated waves pose a serious threat to the development of offshore wind power; therefore typical wave parameters caused by typhoon near Donghai Bridge, a demonstration area of offshore wind farm, were analysed. We pay particular attention to the dissipation term which is one of the source terms of governing equation for windwave evolution in WAVEWATCH llI. Anisotropic energy dissipation in the wave propagation direction is considered and further applied in our model. A good agreement is observed by comparison with in situ data. Furthermore, the new improved model is used to simulate and forecast wave evolution caused by Chan-Hom （201509）. The evolution of typical wave parameters i.e. significant wave height and mean wave period were discussed in the East China Sea, especially near Donghai Bridge. 展开更多
关键词 Windwave Wave dissipation Saturation spectrum Significant wave height Typhoon
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Simulation of the extreme waves generated by typhoon Bolaven (1215) in the East China Sea and Yellow Sea 认领 引用 被引量：5
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作者 JUN Ki Cheon JEONG Weon Mu +5 位作者 CHOI Jin Yong PARK Kwang Soon JUNG Kyung Tae KIM Mee Kyung CHAE Jang Won QIAO Fangli 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2015年第12期19-28,共10页
Record-breaking high waves occurred during the passage of the typhoon Bolaven（1215）（TYB） in the East China Sea（ECS） and Yellow Sea（YS） although its intensity did not reach the level of a super typhoon.Winds an... Record-breaking high waves occurred during the passage of the typhoon Bolaven（1215）（TYB） in the East China Sea（ECS） and Yellow Sea（YS） although its intensity did not reach the level of a super typhoon.Winds and directional wave measurements were made using a range of in-situ instruments mounted on an ocean tower and buoys.In order to understand how such high waves with long duration occurred,analyses have been made through measurement and numerical simulations.TYB winds were generated using the TC96 typhoon wind model with the best track data calibrated with the measurements.And then the wind fields were blended with the reanalyzed synoptic-scale wind fields for a wave model.Wave fields were simulated using WAM4.5 with adjustment of C_d for gust of winds and bottom friction for the study area.Thus the accuracy of simulations is considerably enhanced,and the computed results are also in better agreement with measured data than before.It is found that the extremely high waves evolved as a result of the superposition of distant large swells and high wind seas generated by strong winds from the frontight quadrant of the typhoon track.As the typhoon moved at a speed a little slower than the dominant wave group velocity in a consistent direction for two days,the wave growth was significantly enhanced by strong wind input in an extended fetch and non-linear interaction. 展开更多
关键词 extreme waves typhoon measurements numerical simulation East China Sea
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Simulation of Storm Surge and Wave Due to Typhoon Isewan(5915) 认领 引用 被引量：3
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作者 Jin-Hee YUK Kyeong Ok KIM +1 位作者 Han Soo LEE Byung Ho CHOI 《China Ocean Engineering》 SCIE EI CSCD 2015年第4期473-488,共16页
An integrally coupled wave-tide-surge model was developed and then applied to the simulation of the wave-typhoon surge for the typhoon Isewan （typhoon Vera （5915））, which is the strongest typhoon that has struck J... An integrally coupled wave-tide-surge model was developed and then applied to the simulation of the wave-typhoon surge for the typhoon Isewan （typhoon Vera （5915））, which is the strongest typhoon that has struck Japan and caused incalculable damage. An integrally coupled tide-surge-wave model using identical and homogeneous meshes in an unstructured grid system was used to correctly resolve the physics of wave-circulation interaction in both models. All model components were validated independently. The storm surge and wave properties such as the surge height, the significant wave height, wave period and direction were reproduced reasonably under the meteorological forcing, which was reprocessed to be close to the observations. The resulting modeling system can be used extensively for the prediction of the storm surge and waves and the usual barotropic forecast. 展开更多
关键词 typhoon Isewan storm surge wave tide coupled wave-tide-surge model
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Development of typhoon driven wave nowcasting model in Southeast China Sea 认领 引用 被引量：7
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作者 Zheng Jinhai Feng Xiangbo Yan Yixin 《Engineering Sciences》 2011年第1期2-6,共5页
Using optimal interpolation data assimilation of observed wave spectrum around Northeast coast of Taiwan Island, the typhoon driven wave nowcasting model in Southeast China Sea is setup. The SWAN (simulating waves nea... Using optimal interpolation data assimilation of observed wave spectrum around Northeast coast of Taiwan Island, the typhoon driven wave nowcasting model in Southeast China Sea is setup. The SWAN (simulating waves nearshore) model is used to calculate wave field and the input wind field is the QSCAT/NCEP (Quick Scatterometer/National Centers for Environmental Prediction) data. The two-dimensional wavelet transform is applied to analyze the X-band radar image of nearshore wave field and it reveals that the observed wave spectrum has shoaling characteristics in frequency domain. The reverse calculation approach of wave spectrum in deep water is proposed and validated with experimental tests. The two-dimensional digital low-pass filter is used to obtain the initialization wave field. Wave data during Typhoon Sinlaku is used to calibrate the data assimilation parameters and test the reverse calculation approach. Data assimilation corrects the significant wave height and the low frequency spectra energy evidently at Beishuang Station along Fujian Province coast, where the entire assimilation indexes are positive in verification moments. The nowcasting wave field shows that the present model can obtain more accurate wave predictions for coastal and ocean engineering in Southeast China Sea. 展开更多
关键词 typhoon driven wave nowcasting model data assimilation spectrum reverse calculation
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