渤海湾中部波浪特征分析  

Analysis of wave characteristic in the middle part of the Bohai Bay

作　　者：祁祥礼[1] 郑向阳[2] 谌业良[1] QI Xiang-li;ZHENG Xiang-yang;SHEN Ye-liang(Tianfin Key Laboratory of Surveying and Mapping for Water Transport Engineering,Tianjin Survey and Design Institute for Water Transport Engineering,Tianjin 300456,China;Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,China)

机构地区：[1]天津水运工程勘察设计院天津市水运工程测绘技术重点实验室,天津300456 [2]中国科学院烟台海岸带研究所,烟台264003

出　　处：《水道港口》2018年第3期288-293,共6页Journal of Waterway and Harbor

基　　金：中央级公益性科研院所基本科研业务费专项基金项目(TKS160216;TKS170106;TKS170223;TKS180405);天津市科技计划创新平台与人才专项(16PTSYJC00190)

摘　　要：文章利用渤海湾中部一测波站一年的波浪观测资料,分析该处波浪的特征,包括波高、波周期、波向的年统计特征,季节变化规律,不同级别的波浪出现频率等。研究发现此位置处出现较高波浪的频率较低,较大的波浪多出现于秋季和冬季,东北向波浪占据优势。文章还利用ECMWF全球风场数据分析了大浪与当地风的关系,发现在大浪期间波高与风速、波向与风向有较强的相关性,文章利用线性回归定量给出了不同风向下风速和有效波高的关系。Wave observation data over one year was obtained from a wave gauge deployed in the middle of the Bohai Bay.The data was used to analyze wave characteristic,including yearly characteristic of wave height,wave period and wave direction,seasonal variation and occurrence frequency of different wave levels.It is found that the occurrence frequency of large wave is low in a year.Such occurrence frequency is higher in autumn and winter than that in spring and summer due to the larger wind speed in autumn and winter.The dominant wave direction at this location is NE.The relations between large wave and local wind were also investigated using wave measurement data and wind data provided by ECMWF.It is seen that wave height and wave direction are highly consistent with wind speed and direction of local wind.Linear regression was used to estimate the relation between wind speed and significant wave height in different wind directions.

关 键 词：渤海湾 波浪特征 季节变化 风-波浪相关性 

分 类 号：TV143[水利工程—水力学及河流动力学]