北部湾水文气象极值参数研究

发布时间：2018-05-29 08:26

本文选题：北部湾 + 风速　；参考：《海洋环境科学》2017年04期

【摘要】：本文基于WRF海面风场动力模式、SWAN海浪模式和ECOM三维海流数值模式,计算了1992~2011年的热带气旋影响下,发现了波高极值与增水极值发生时刻的不一致性这一规律。北部湾百年一遇极值波浪、风速、海流和增水的特征值:百年一遇极值波高在北部湾南部最大,超过10.5 m,向北减小;极值周期的分布特征与极值波高相似,在北部湾南部最大,达到11.5 s,向北减小;百年一遇风速,在北部湾北部和南部有两个大值区,可以达到39 m/s,中西部相对较小;百年一遇极值流速,在北部湾四周较大,而东边较西边更大,海南岛的东方市附近超过了300 cm/s;百年一遇极值增水普遍超过160 cm,北部可以达到340 cm,呈现由北向南的递减特征。
[Abstract]:Based on the WRF sea surface wind field dynamic model Swan wave model and the ECOM three-dimensional current numerical model, this paper calculates the inconsistency between the extreme value of wave height and the time of occurrence of increasing extreme value under the influence of tropical cyclone from 1992 to 2011. The characteristic values of extreme wave, wind speed, current and increasing water in a hundred years in Beibu Gulf: the maximum extreme wave height in the southern part of Beibu Gulf, more than 10.5 m, decreases northward, and the distribution characteristics of extreme value period are similar to those of extreme wave height, which is the largest in the southern part of Beibu Gulf. Reaching 11.5 s, decreasing northward; once in 100 years, there are two large value areas in the northern and southern parts of the Gulf of Beibu, which can reach 39 m / s, and relatively small in the central and western regions. Once in a hundred years, the velocity of extreme velocity is larger around the Beibu Gulf, while in the east it is larger than that in the west. Near Dongfang City in Hainan Island, over 300 cm / s; the maximum increase in water in a hundred years is generally more than 160 cm; in the north, it can reach 340 cm, showing a decline from north to south.
【作者单位】：国家海洋环境监测中心;中国海洋大学海洋与大气学院;广西科学院广西近海海洋环境科学重点实验室;鲁东大学土木工程学院;
【基金】：国家自然科学基金(41406044)
【分类号】：P732

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