一次典型寒潮风暴潮过程的数值模拟研究  

Study on a Typical Storm Surge Process Caused by Cold Air

作　　者：李鑫[1] 章卫胜[2,3] 张金善[2,3,4] 孔俊[1] 

机构地区：[1]河海大学交通与海洋学院,江苏南京210098 [2]南京水利科学研究院,江苏南京210029 [3]港口航道工程泥沙交通行业重点实验室,江苏南京210029 [4]水利部应对气候变化研究中心,江苏南京210029

出　　处：《海洋科学进展》2010年第1期8-16,共9页Advances in Marine Science

基　　金：交通部"十一五"专项--风暴潮对港口水陆域航道安全影响研究(200632800003-03);水利部公益行业科研专项经费项目--咸潮动态监测与预测预报技术研究(200901032-3);气候变化对我国水安全影响及研究对策(200801001);水利部"948"项目--河口海岸风暴潮和洪水灾害模拟系统的引进(200705)

摘　　要：建立了渤海及邻近海域天文潮与风暴潮的耦合模型。在验证的基础上,以2003年10月寒潮为例,分析了寒潮作用下渤海沿岸的增、减水及潮流场的时空分布变化特征。结果表明,寒潮作用下渤海湾沿岸增水幅度较大,水位振荡明显;潮流运动发生较大改变,局部海域的往复流转化为单向流,可能会影响渤海湾沿岸泥沙的运动。A coupled astronomic tide/storm surge model is formulated for the Bohai Sea and its adjacent area.After the model has been verified,a case study of the cold surge in October 2003 is conducted to analyse the spatial-temporal features of both the coastal water level fluctuations and the tidal current fields in the sea area effected by the cold surge.It is learnt from the analysis results that the water level increment become greater at the coast of Bohai Bay with an obvious water level fluctuations because of the cold surge effects.The tidal current becomes changed in the cold surge and turns to be the unidirectional at some places where the tidal current is usually rectilinear.This changes might give effects on sand movement in the coastal waters of the Bohai Bay.

关 键 词：渤海 寒潮风暴潮 增、减水过程 数值模拟 

分 类 号：P732[天文地球—海洋科学]