中国海洋大学学报（自然科学版）2026，Vol.56Issue(7)：35-42,8.DOI:10.16441/j.cnki.hdxb.20250147
南海东北部亚中尺度动能的年际变化特征和调控机制
Interannual Variability and Modulation Mechanisms of Submesoscale Kinetic Energy in the Northeastern South China Sea
摘要
Abstract
Based on the OFES simulation results with a horizontal resolution of 1/30(°)from 1991 to 2019,this study investigates the interannual variability characteristics and regulatory mechanisms of submesoscale kinetic energy(KE)in the northeastern South China Sea(SCS).By calculating the submesoscale KE,it is found that the submesoscale KE in the northeastern SCS exhibits significant interannual variability,with a general periodicity of 3～5 a.Correlation analysis reveals that the interannual variability of submesoscale KE in this region is jointly modulated by the mesoscale strain rate(MSR)and mixed layer depth(MLD).Among these factors,the flow field strain associated with mesoscale eddies is the primary driver of the interannual variability in submesoscale KE,while the contribution of MLD is relatively weaker.Further research indicates that the Kuroshio path in the northeastern SCS during winter plays a crucial role in the intensity of submesoscale KE.When the Kuroshio intrusion exhibits a Looping pattern,the mesoscale strain rate significantly increases,and submesoscale processes become more active.The interannual variability characteristics and regulatory mechanisms of submesoscale KE revealed in this study provide valuable insights for further research on multi-scale dynamic interactions and energy cascade processes in this region.关键词
南海东北部/亚中尺度动能/年际变化/调控机制Key words
northeastern South China Sea/submesoscale kinetic energy/interannual variability/mod-ulation mechanisms分类
海洋科学引用本文复制引用
张可微,张志伟,张金超,赵玮..南海东北部亚中尺度动能的年际变化特征和调控机制[J].中国海洋大学学报（自然科学版）,2026,56(7):35-42,8.基金项目
国家自然科学基金项目(42222601,42406013) （42222601,42406013）
山东省自然科学基金项目(ZR2023JQ013) （ZR2023JQ013）
热带海洋环境国家重点实验室(中国科学院南海海洋研究所)开放课题(LTO2308)资助 Supported by the National Natural Science Foundation of China(42222601,42406013) （中国科学院南海海洋研究所）
the Natural Science Foundation of Shandong Province(ZR2023JQ013) （ZR2023JQ013）
the Open Project of State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanolo-gy,Chinese Academy of Sciences(LTO2308) （LTO2308）
