台风＂达维＂影响期间江苏海域台风浪研究  

Study on the simulated typhoon waves off Jiangsu coast during Typhoon DAMREY

作　　者：何倩倩 杨娟[1] 王卫远[1] 

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州310014

出　　处：《海洋通报》2015年第5期592-599,共8页Marine Science Bulletin

基　　金：国家自然科学基金(41401018);863计划课题(2012AA051701)

摘　　要：2012年10号台风"达维"是历史上登陆长江以北的最强台风。以NCEP风场和Jelesnianski经验模型构造台风风场,利用波浪谱模型SWAN对"达维"影响期间江苏海域台风浪进行数值模拟,模拟结果和实测结果吻合较好。在利用实测风、波浪资料验证的基础上分析江苏海域台风浪的时空分布特征。"达维"影响期间,测风塔100 m高度实测最大风速为42.2 m/s,实测最大波高为6.17 m。数值模式结果显示江苏外海有效波高最大值超过9 m,台风移向的中心右侧风速和有效波高均较大,波向基本与风向一致;在台风移向的中心左侧一般风速较小,风速和有效波高也均比右侧小,波向与风向不一致。在近岸台风浪要素受地形影响较大,与外海特点不同。Typhoon DAMREY （1210） is the strongest typhoon landed at the north of Yangtze River in the history. SWAN model driven by the Jelesnianski typhoon model wind and the NCEP wind is used to simulate the waves off Jiangsu coast. The simulated waves during Typhoon DAMREY are in good agreement with the available observations. The time evolution and spatial characteristics of typhoon waves are analyzed. Results show that the simulated maximum significant wave height is above 9m, and the wind speed and wave height on the right side of typhoon center are larger than those on the left side, and the direction of the wave accords with the wind on the right side of the typhoon center while they are not consistent on the left side. The typhoon wave near the coast is affected by the bathymetry. The distribution is different from the waves off coast.

关 键 词：江苏沿海 台风达维 台风浪 有效波高 

分 类 号：TV139.2[水利工程—水力学及河流动力学]