The Formation Evaluated Simulation And Regulation Of The South China Sea's Large-Scale Ocean Observed Network

Under the background of the Marine Power Strategy,that the long-term observation to the South China Sea for realizing the hyalinization of the South China Sea by means of ocean observed technique has important significance.Array for Real-time Geostrophic Oceanography does observation to global ocean by means of many Argo floats which are regarded as nodes within global ocean.However,the Argo float doesn't have any mobility,and the float eventually leaves the South China Sea's scope due to ocean current,even though it can do continuous observation to the South China Sea in a period of time.The underwater glider is widely applied to ocean observation as the autonomously underwater vehicle by virtue of buoyancy force.But during the motion process,the underwater glider needs periodically modulating net buoyancy and attitude angle to achieve propulsive force,which increases its energy consumption and decreases endurance time by comparing to the Argo float.However,there only exists two exits,the Luzon Strait and the Mindoro Strait,at the 100m underwater depth of the South China Sea,which forms approximately enclosed environment.Due to this terrain and when underwater glider widely observes to the South China Sea,under ordinary circumstance,underwater glider can go with the stream to reduce energy and prolong endurance time;but under special circumstance,it needs modulating its own location to avoid escape from the South China Sea,and realizes long-term observation to the South China Sea.Therefore,this study puts forward the South China Sea's large-scale ocean observed network which is built by a large amount of disk type underwater glider as observed node,on the one hand,under ordinary circumstance,it can carry out zero-control strategy to underwater glider's node(not by means of actively controlling to change underwater glider node's motion state),and makes it free motion with current,and does dynamic observation to the South China Sea;on the other hand,under special circumstance,it controls underwater glider's node to avoid escaping from the South China' s exit by means of motivity,and to accomplish other missions.To study the observed ability of the ocean observed network under the zero-control circumstance,and to study the important significance of underwater glider node's motivity to the ocean observed network,this study does theory analysis to the ocean observed network's formation evolution.This study is divided into following three parts.The first,on the one hand,the study puts forward the formation evolution model of the ocean observed network by the Lagrange trace of the underwater glider node,on the other hand,this study puts forward the observed ability' s evaluated criteria to the target district by the ocean observed network.Second,this study did one-year simulation of the ocean observed network's formation evolution under the zero-control circumstance,and then evaluated observed ability.The results shown that the network has some observed ability to some extent under the zero-control circumstance to the South China Sea.By underwater glider node's regulation,it decreases the node escape quantity in the South China Sea's exit,and it maintains the stable distribution of the ocean observed network in the South China Sea,so it shows that the ocean observed network can realize the stably long-term observation to the South China Sea,and the motivity of the underwater glider has important significance to the ocean observed network.Third,this study briefly analyzes about the concentrate launch,the concentrate coverage within the target district,and supervision of the transited ships.