THE ANALYSIS ON INTERANNUAL VARIATION CHARACTERISTICS OF EDDY ACTIVITIES AND ITS DYNAMIC MECHANISM IN THE SOUTH CHINA SEA
The present study analyses temporal and spatial characteristics of mesoscale eddies in the South China Sea (SCS),identified by the altimeter data with Okubo-Weiss method.In addition,we examine the interannual variation of mesoscale eddies and its dynamic mechanism.Our results show that there is prominent interannual variation of mesoscale eddies in the SCS.And it has a negative correlation with ENSO events suggested by the analysis of number of eddies,total eddy aera and eddy kinetic energy:mesoscale eddy activities are weak (strong) in El Ni(n)o (La Ni(n)a) years.The wind stress curl decrease (increase) as climatological northeast wind fields weaken (strengthen) inEl Ni(n)o (La Ni(n)a) years,leading to a weak (strong) eddy activities.
South China Seamesoscale eddyinterannual variabilityENSO
NETL
NSTL
万方数据
维普
