Using Multisatellite Altimetry Estimate Energy Fluxes In South China Sea And The Distribution Of Tide

Because of the extremely changed topography in the Luzon Strait,there are very abundant internal tides.And the internal tides are a very important part of ocean water mixing.This paper used several satellite altimeters to detect the energy fluxes around the Luzon Strait.It includes J2,J1T,GFO and EN which are used in 21st century.Besides,this study used the data from WOA to calculate eight mainly tides in the ocean:K₁,K₂,M₂,N₂,O₁,P₁,Q₁ and S₂ and only for mode-1 part.The results showed in the selected area,diurnal tides are the main part,K₁ is the largest one and next are O₁,P₁and Q₁.All the tides in this area are similar to each other considering the distribution of amplitude.For all semidiurnal tides,M₂ is the biggest one and next are S₂,N₂ and K₂.However,as for the internal tides,the energy flux of M₂ is the biggest one which get to6.45GW in Luzon Strait.At most places of selected area,the energy flux of internal tides is very small.But the areas which the energy flux is bigger than others are mainly located at the Ryukyu Islands,the Luzon Strait,east of Philippines,Spratly Island,Zhongsha Islands,Paracel Islands and Sulu Archipelago.And the energy fluxes of diurnal tides in the middle part of Luzon Strait are larger than the south part of it.But for the semidiurnal tides,the result is opposite.