文献类型：期刊文献

中文题名：南海西北部畸形波要素特征统计分析

英文题名：Statistical analysis of the characteristics of freak wave elements in the northwestern South China Sea

作者：冯涛[1,3,4];仉天宇[1,2,3,4];张峻萍[1];王海龙[1];杨坚[1];林汛[1];曹倩[5];李萌[5]

机构：[1]广东海洋大学海洋与气象学院,广东湛江524088;[2]自然资源部空间海洋遥感与应用重点实验室,北京100081;[3]近海海洋变化与灾害预警实验室广东海洋大学,广东湛江524088;[4]广东省高等学校陆架及深远海气候、资源与环境重点实验室,广东湛江524088;[5]山东省创新发展研究院,山东济南250101

年份：2025

卷号：47

期号：8

起止页码：18

中文期刊名：海洋学报

收录：北大核心2023、、北大核心

基金：国家自然科学基金(42476219,52271361,41976200);南方海洋实验室项目(SML2022SP301);山东省创新发展研究院智库项目;广东省普通高校创新团队项目(2023KCXTD015);广东省科技计划项目(粤西海洋野外站);国家重点研发计划项目(2021YFC3101801);广东海洋大学人才启动项目(060302032106);广东海洋大学博士启动项目(060302032104)。

语种：中文

中文关键词：南海西北部;畸形波;波浪要素;特征分析;相关性分析

外文关键词：northwestern South China Sea;freak wave;wave elements;characteristic analysis;correlation analysis

中文摘要：本文基于实测波浪资料,结合随机波浪理论和JONSWAP谱,研究了南海西北部海域畸形波的发生概率;并通过浮标观测数据对该海域的畸形波个数和波浪要素进行了特征统计分析,同时探讨了有效波高与周期、风速等主要参数的关联特性。结果表明:南海西北部海域畸形波的发生概率为0.0059%。分析该海域不同季节中有效波陡的特征分布情况,发现该海域在春季过渡时期和西南季风时期的波浪中涌浪出现频率相对较高,这可能是这两个季节畸形波发生概率相对较高的原因之一。对于全年分布的特征,有效波高与平均周期的相关性相对较高,而畸形波基本无相关性。全年有效波高与风速的相关系数为0.83,畸形波的相关系数为0.63,表明波浪的全年分布情况受风浪影响较大,而风浪、涌浪混合区中涌浪所占相对比例可能对畸形波的生成有一定的影响。

外文摘要：Based on actual wave measurement data,combined with stochastic wave theory and the JONSWAP spectrum,the probability of freak waves in the northwestern part of the South China Sea was conducted.The characteristics of the number of freak waves and wave elements in the sea area were statistically analyzed by the buoy observation data,and the correlation characteristics between the effective wave height and the main parameters such as period and wind speed were explored.The results indicate that the occurrence probability of freak waves in the northwestern South China Sea is 0.0059%.Analyzing the distribution of the significant wave steepnessδin different seasons of this area,it was found that the frequency of swells in the waves is relatively high during the spring transition period and the southwest monsoon season,which may be one of the reasons for the relatively high probability of freak wave occurrences in these two seasons.Regarding the annual distribution characteristics,there is a high correlation between significant wave height and mean period,while freak waves show virtually no correlation.The correlation coefficient between annual significant wave height and wind speed is 0.83,and for freak waves,it is 0.63,indicating that the annual distribution of waves is greatly influenced by wind waves.The relative proportion of swells in the mixed zone of wind waves and swells may have a certain impact on the generation of freak waves.