摘要
为了解决渤海和黄海北部深远海区域覆冰资料缺乏的问题,基于LIM2模型,采用数值模拟的方式对目标海域覆冰过程进行模拟,并根据海水表面温度和卫星反演的海冰范围对模型结果进行验证。通过对比可知,模拟效果较好,覆冰过程与卫星反演比较接近;采用1979-2019年模拟的海冰厚度年极值序列作为基本资料,分别利用极值Ⅰ型(Gumbel)分布和皮尔逊Ⅲ型分布推算多年一遇极值。项目所在海域1年、2年、5年、10年、20年、50年、100年一遇的单层平整冰厚分别为0、12、19、25、30、37、43cm。其最大覆冰计算结果与规范值基本一致,由此可知本方法结果较可靠。
In order to solve the problem of lack of ice cover data in the deep-sea areas of the Bohai Sea and the northern Yellow Sea,this paper uses the LIM2 model and numerical simulation to simulate the ice cover process in the target sea area.The model results are verified based on sea surface temperature and satellite inversion of sea ice range.By comparison,it can be seen that the simulation effect in this paper is good,and the icing process is relatively close to satellite inversion;Taking the simulated annual extreme value sequences of various elements from 1979 to 2019 as the basic data,the Gumbel distribution and Pearson Ⅲ distribution of extreme values were used to calculate the annual return period extreme values.The single layer flat ice thickness in the sea area where the project is located,which occurs once every 1 year,2 years,5 years,10 years,20 years,50 years,and 100 years,is 0 cm,12 cm,19 cm,25 cm,30 cm,37 cm,and 43 cm,respectively.The maximum icing calculation results are basically consistent with the standard values,indicating that the results of this method are relatively reliable.
作者
戚振亚
于赛玉
王守峰
许卫东
Qi Zhenya;Yu Saiyu;Wang Shoufeng;Xu Weidong(Shandong Electric Power Engineering Consulting Institute Corp.LTD.,Jinan 250013,Shandong,China)
出处
《绿色科技》
2024年第16期261-265,共5页
Journal of Green Science and Technology
关键词
海冰
数值模拟
覆冰厚度
sea ice
numerical simulation
ice thickness
