In order to facilitate engineering design and coastal flooding protection, the potential storm surge induced by a typhoon is studied.Using an unstructured mesh, a coupled model which combines the advanced circulation ...In order to facilitate engineering design and coastal flooding protection, the potential storm surge induced by a typhoon is studied.Using an unstructured mesh, a coupled model which combines the advanced circulation （ ADCIRC ） hydrodynamic model and simulating waves nearshore （ SWAN ） model is applied to analyze the storm surge and waves on the coast of Jiangsu Province.The verifications of wind velocity, tidal levels and wave height show that this coupling model performs well to reflect the characteristics of the water levels and waves in the studied region.Results show that the effect of radiation stress on storm surge is significant, especially in shallow areas such as the coast of Jiangsu Province and the Yangtze estuary.By running the coupled model, the simulated potential flooding results can be employed in coastal engineering applications in the Jiangsu coastal area, such as storm surge warnings and extreme water level predictions.展开更多
基于ADCIRC水动力模型构建了一个适用南海海域的精细化风暴潮预报模型,选用Holland模型提供强迫风场和气压场,开边界潮位采用OTIS(Oregon State University Tidal Inversion Software)的全球潮汐数据结果。选取造成广东省沿海产生严重...基于ADCIRC水动力模型构建了一个适用南海海域的精细化风暴潮预报模型,选用Holland模型提供强迫风场和气压场,开边界潮位采用OTIS(Oregon State University Tidal Inversion Software)的全球潮汐数据结果。选取造成广东省沿海产生严重风暴潮的201319号“天兔”、201415号“海鸥”和201713号“天鸽”等5个典型台风,利用该模型计算台风登陆期间严重影响岸段潮位站的逐时潮位过程,并与实测水位进行比对分析。结果显示:总体上各岸段潮位过程预报平均绝对误差在30 cm以内,计算与实测的高潮位绝对误差满足规范许可误差要求,可为广东省沿海台风暴潮的预警预报提供技术支撑。展开更多
基金The National Natural Science Foundation of China(No.51209040,51279134)the Natural Science Foundation of Jiangsu Province(No.BK2012341)+1 种基金the Fundamental Research Funds for the Central Universities(No.SJLX_0087)the Research Fund of Nanjing Hydraulic Research Institute(No.Y213012)
文摘In order to facilitate engineering design and coastal flooding protection, the potential storm surge induced by a typhoon is studied.Using an unstructured mesh, a coupled model which combines the advanced circulation （ ADCIRC ） hydrodynamic model and simulating waves nearshore （ SWAN ） model is applied to analyze the storm surge and waves on the coast of Jiangsu Province.The verifications of wind velocity, tidal levels and wave height show that this coupling model performs well to reflect the characteristics of the water levels and waves in the studied region.Results show that the effect of radiation stress on storm surge is significant, especially in shallow areas such as the coast of Jiangsu Province and the Yangtze estuary.By running the coupled model, the simulated potential flooding results can be employed in coastal engineering applications in the Jiangsu coastal area, such as storm surge warnings and extreme water level predictions.
文摘基于ADCIRC水动力模型构建了一个适用南海海域的精细化风暴潮预报模型,选用Holland模型提供强迫风场和气压场,开边界潮位采用OTIS(Oregon State University Tidal Inversion Software)的全球潮汐数据结果。选取造成广东省沿海产生严重风暴潮的201319号“天兔”、201415号“海鸥”和201713号“天鸽”等5个典型台风,利用该模型计算台风登陆期间严重影响岸段潮位站的逐时潮位过程,并与实测水位进行比对分析。结果显示:总体上各岸段潮位过程预报平均绝对误差在30 cm以内,计算与实测的高潮位绝对误差满足规范许可误差要求,可为广东省沿海台风暴潮的预警预报提供技术支撑。
