谱松弛动力降尺度方法及其在吕宋海峡黑潮模拟中的应用  

Spectral nudging dynamic downscaling method and its application to Kuroshio simulation in the Luzon Strait

作　　者：付夏川 赵月琪 陈文涛 何忠杰 FU Xiachuan;ZHAO Yueqi;CHEN Wentao;HE Zhongjie(College of Intelligent Systems Science and Engineering,Harbin Engineering University,Harbin 150001,China;Qingdao Innovation and Development Base,Harbin Engineering University,Qingdao 266404,China)

机构地区：[1]哈尔滨工程大学智能科学与工程学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学青岛创新发展基地,山东青岛266404

出　　处：《海洋通报》2022年第6期660-675,共16页Marine Science Bulletin

基　　金：国家重点研发计划(2018YFC1406202)。

摘　　要：本文采用区域高分辨率海洋数值模型,将谱松弛动力降尺度方法应用于吕宋海峡及其邻近区域,对吕宋海峡黑潮流径的流型特征进行模拟与分析。实验结果显示,应用谱松弛法能够较好地改善区域模型的模拟效果,通过约束大尺度误差,不仅能直接约束区域内的大尺度海洋状态,也间接调整了小尺度过程的演变规律,改善了吕宋海峡黑潮流径的模拟效果。The spectral nudging dynamic downscaling method is applied to a high-resolution ocean model covers the Luzon Strait and its adjacent areas,in order to improve the Kuroshio current simulation.The results show that,by restraining the large-scale bias,not only the large-scale of the ocean state can be constraint well,but also the small-scale phenomenon and its evolution are improved significantly.

关 键 词：动力降尺度 区域海洋模型 吕宋海峡 黑潮 

分 类 号：P731.27[天文地球—海洋科学]